INFO  [Native-Transport-Requests-14] 2026-06-11 16:02:16,993 ColumnFamilyStore.java:1012 - Enqueuing flush of system_schema.tables, Reason: INTERNALLY_FORCED, Usage: 2.713KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:2] 2026-06-11 16:02:17,031 Flushing.java:145 - Writing Memtable-tables@2057646327(0.706KiB serialized bytes, 1 ops, 2.713KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:2] 2026-06-11 16:02:17,032 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system_schema/tables-afddfb9dbc1e30688056eed6c302ba09/nb-15-big-Data.db (0.438KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=76738)
INFO  [Native-Transport-Requests-14] 2026-06-11 16:02:17,162 ColumnFamilyStore.java:1012 - Enqueuing flush of system_schema.keyspaces, Reason: INTERNALLY_FORCED, Usage: 0.715KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:1] 2026-06-11 16:02:17,201 Flushing.java:145 - Writing Memtable-keyspaces@588590038(0.146KiB serialized bytes, 1 ops, 0.715KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:1] 2026-06-11 16:02:17,201 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-16-big-Data.db (0.114KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=76738)
INFO  [CompactionExecutor:1] 2026-06-11 16:02:17,346 CompactionTask.java:173 - Compacting (eb692f10-65ae-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-15-big-Data.db:level=0, /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-16-big-Data.db:level=0, /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-14-big-Data.db:level=0, /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-13-big-Data.db:level=0, ]
INFO  [Native-Transport-Requests-14] 2026-06-11 16:02:17,350 Keyspace.java:394 - Creating replication strategy thehive params KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=1}}
INFO  [Native-Transport-Requests-14] 2026-06-11 16:02:17,351 ColumnFamilyStore.java:484 - Initializing thehive.system_properties_lock_
INFO  [CompactionExecutor:1] 2026-06-11 16:02:17,610 CompactionTask.java:270 - Compacted (eb692f10-65ae-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-17-big,] to level=0.  0.643KiB to 0.276KiB (~43% of original) in 263ms.  Read Throughput = 2.438KiB/s, Write Throughput = 1.049KiB/s, Row Throughput = ~12/s.  9 total partitions merged to 6.  Partition merge counts were {1:5, 4:1, }. Time spent writing keys = 42ms
INFO  [NonPeriodicTasks:1] 2026-06-11 16:02:17,611 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-15-big
INFO  [NonPeriodicTasks:1] 2026-06-11 16:02:17,612 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-16-big
INFO  [NonPeriodicTasks:1] 2026-06-11 16:02:17,613 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-14-big
INFO  [NonPeriodicTasks:1] 2026-06-11 16:02:17,614 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system_schema/keyspaces-abac5682dea631c5b535b3d6cffd0fb6/nb-13-big
INFO  [SlabPoolCleaner] 2026-06-11 16:03:20,278 AbstractAllocatorMemtable.java:290 - Flushing largest CFS(Keyspace='thehive', ColumnFamily='edgestore') to free up room. Used total: 0.33/0.00, live: 0.33/0.00, flushing: 0.00/0.00, this: 0.33/0.00
INFO  [SlabPoolCleaner] 2026-06-11 16:03:20,279 ColumnFamilyStore.java:1012 - Enqueuing flush of thehive.edgestore, Reason: MEMTABLE_LIMIT, Usage: 40.872MiB (33%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:3] 2026-06-11 16:03:20,352 Flushing.java:145 - Writing Memtable-edgestore@463495887(10.558MiB serialized bytes, 120447 ops, 40.872MiB (33%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:3] 2026-06-11 16:03:20,545 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/thehive/edgestore-e844e4a065ae11f1bd1ad9b5a0fbe784/nb-1-big-Data.db (7.710MiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=8061957)
INFO  [ScheduledTasks:1] 2026-06-11 17:00:26,648 ColumnFamilyStore.java:1012 - Enqueuing flush of system.compaction_history, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 14.202KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [ScheduledTasks:1] 2026-06-11 17:00:26,653 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 16.134KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:00:26,695 Flushing.java:145 - Writing Memtable-sstable_activity@216783725(0.450KiB serialized bytes, 59 ops, 16.134KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:4] 2026-06-11 17:00:26,695 Flushing.java:145 - Writing Memtable-compaction_history@1216591747(2.347KiB serialized bytes, 11 ops, 14.202KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:00:26,696 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-1-big-Data.db (2.233KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10356673)
INFO  [PerDiskMemtableFlushWriter_0:4] 2026-06-11 17:00:26,696 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-1-big-Data.db (1.317KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10356673)
INFO  [ScheduledTasks:1] 2026-06-11 17:00:26,722 ColumnFamilyStore.java:1012 - Enqueuing flush of system.prepared_statements, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 34.414KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:00:26,857 Flushing.java:145 - Writing Memtable-prepared_statements@36451456(7.695KiB serialized bytes, 45 ops, 34.414KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:00:26,858 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/prepared_statements-18a9c2576a0c3841ba718cd529849fef/nb-1-big-Data.db (6.872KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10356673)
INFO  [ScheduledTasks:1] 2026-06-11 17:00:27,433 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 16.006KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:4] 2026-06-11 17:00:27,489 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1178882275(0.450KiB serialized bytes, 59 ops, 16.006KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:4] 2026-06-11 17:00:27,490 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-1-big-Data.db (2.105KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10356673)
INFO  [ScheduledTasks:1] 2026-06-11 17:00:28,065 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 239.360KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:00:28,103 Flushing.java:145 - Writing Memtable-size_estimates@101953565(40.547KiB serialized bytes, 3960 ops, 239.360KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:00:28,107 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-1-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10356673)
INFO  [ScheduledTasks:1] 2026-06-11 17:00:28,365 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 596.067KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:4] 2026-06-11 17:00:28,424 Flushing.java:145 - Writing Memtable-table_estimates@1115413747(87.703KiB serialized bytes, 7920 ops, 596.067KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:4] 2026-06-11 17:00:28,427 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-1-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10356673)
INFO  [IndexSummaryManager:1] 2026-06-11 17:00:28,667 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 17:00:28,668 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 22 sstables with memory pool size 24 MiB; current spaced used is 0.001953125 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 17:00:28,669 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 17:00:28,673 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.001953125 MiB, time spent: 6ms
INFO  [ScheduledTasks:1] 2026-06-11 17:01:18,902 ColumnFamilyStore.java:1012 - Enqueuing flush of system.local, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.682KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:01:18,961 Flushing.java:145 - Writing Memtable-local@1762709131(0.060KiB serialized bytes, 10 ops, 0.682KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:5] 2026-06-11 17:01:18,961 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/nb-9-big-Data.db (0.043KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=10451957)
INFO  [ScheduledTasks:1] 2026-06-11 18:00:26,654 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:6] 2026-06-11 18:00:26,696 Flushing.java:145 - Writing Memtable-sstable_activity@1879127895(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:6] 2026-06-11 18:00:26,697 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-2-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=11502997)
INFO  [ScheduledTasks:1] 2026-06-11 18:00:27,434 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:7] 2026-06-11 18:00:27,482 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1062939166(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:7] 2026-06-11 18:00:27,482 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-2-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=11502997)
INFO  [ScheduledTasks:1] 2026-06-11 18:00:28,066 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:6] 2026-06-11 18:00:28,103 Flushing.java:145 - Writing Memtable-size_estimates@2126960423(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:6] 2026-06-11 18:00:28,105 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-2-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=11502997)
INFO  [ScheduledTasks:1] 2026-06-11 18:00:28,365 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:7] 2026-06-11 18:00:28,412 Flushing.java:145 - Writing Memtable-table_estimates@832361349(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:7] 2026-06-11 18:00:28,414 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-2-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=11502997)
INFO  [IndexSummaryManager:1] 2026-06-11 18:00:28,674 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 18:00:28,675 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 27 sstables with memory pool size 24 MiB; current spaced used is 0.0020809173583984375 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 18:00:28,675 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 18:00:28,677 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0020809173583984375 MiB, time spent: 2ms
INFO  [ScheduledTasks:1] 2026-06-11 19:00:26,654 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:8] 2026-06-11 19:00:26,693 Flushing.java:145 - Writing Memtable-sstable_activity@2050793125(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:8] 2026-06-11 19:00:26,694 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-3-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=12650305)
INFO  [ScheduledTasks:1] 2026-06-11 19:00:27,434 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:9] 2026-06-11 19:00:27,473 Flushing.java:145 - Writing Memtable-sstable_activity_v2@257173585(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:9] 2026-06-11 19:00:27,473 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-3-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=12650305)
INFO  [ScheduledTasks:1] 2026-06-11 19:00:28,066 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:8] 2026-06-11 19:00:28,151 Flushing.java:145 - Writing Memtable-size_estimates@1962639250(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:8] 2026-06-11 19:00:28,152 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-3-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=12650305)
INFO  [ScheduledTasks:1] 2026-06-11 19:00:28,366 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:9] 2026-06-11 19:00:28,425 Flushing.java:145 - Writing Memtable-table_estimates@26462155(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:9] 2026-06-11 19:00:28,427 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-3-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=12650305)
INFO  [IndexSummaryManager:1] 2026-06-11 19:00:28,678 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 19:00:28,678 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 31 sstables with memory pool size 24 MiB; current spaced used is 0.0021924972534179688 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 19:00:28,678 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 19:00:28,680 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0021924972534179688 MiB, time spent: 2ms
INFO  [ScheduledTasks:1] 2026-06-11 20:00:26,655 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:10] 2026-06-11 20:00:26,695 Flushing.java:145 - Writing Memtable-sstable_activity@479853986(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:10] 2026-06-11 20:00:26,695 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-4-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=13797613)
INFO  [CompactionExecutor:6] 2026-06-11 20:00:26,819 CompactionTask.java:173 - Compacting (3099ba20-65d0-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-4-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-3-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-1-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-2-big-Data.db:level=0, ]
INFO  [CompactionExecutor:6] 2026-06-11 20:00:26,995 CompactionTask.java:270 - Compacted (3099ba20-65d0-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-5-big,] to level=0.  0.966KiB to 0.080KiB (~8% of original) in 175ms.  Read Throughput = 5.507KiB/s, Write Throughput = 0.456KiB/s, Row Throughput = ~49/s.  51 total partitions merged to 1.  Partition merge counts were {1:47, 4:1, }. Time spent writing keys = 39ms
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:26,995 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-4-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:26,996 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-1-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:26,997 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-2-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:26,997 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-3-big
INFO  [CompactionExecutor:6] 2026-06-11 20:00:27,392 AutoSavingCache.java:391 - Saved KeyCache (267 items) in 23 ms
INFO  [ScheduledTasks:1] 2026-06-11 20:00:27,435 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.144KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:11] 2026-06-11 20:00:27,473 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1938963582(0.114KiB serialized bytes, 16 ops, 2.144KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:11] 2026-06-11 20:00:27,473 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-4-big-Data.db (0.253KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=13798514)
INFO  [CompactionExecutor:5] 2026-06-11 20:00:27,577 CompactionTask.java:173 - Compacting (310d6380-65d0-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-4-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-3-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-1-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-2-big-Data.db:level=0, ]
INFO  [CompactionExecutor:5] 2026-06-11 20:00:27,778 CompactionTask.java:270 - Compacted (310d6380-65d0-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-5-big,] to level=0.  1.054KiB to 0.077KiB (~7% of original) in 201ms.  Read Throughput = 5.238KiB/s, Write Throughput = 0.383KiB/s, Row Throughput = ~53/s.  55 total partitions merged to 1.  Partition merge counts were {1:51, 4:1, }. Time spent writing keys = 40ms
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:27,782 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-1-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:27,783 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-2-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:27,790 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-4-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:27,791 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-3-big
INFO  [ScheduledTasks:1] 2026-06-11 20:00:28,066 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:10] 2026-06-11 20:00:28,105 Flushing.java:145 - Writing Memtable-size_estimates@308154433(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:10] 2026-06-11 20:00:28,106 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-4-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=13799442)
INFO  [CompactionExecutor:6] 2026-06-11 20:00:28,218 CompactionTask.java:173 - Compacting (316f59a0-65d0-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-3-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-2-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-4-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-1-big-Data.db:level=0, ]
INFO  [ScheduledTasks:1] 2026-06-11 20:00:28,366 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:11] 2026-06-11 20:00:28,440 Flushing.java:145 - Writing Memtable-table_estimates@2102779004(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:11] 2026-06-11 20:00:28,443 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-4-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=13799442)
INFO  [CompactionExecutor:6] 2026-06-11 20:00:28,498 CompactionTask.java:270 - Compacted (316f59a0-65d0-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-5-big,] to level=0.  18.633KiB to 4.176KiB (~22% of original) in 279ms.  Read Throughput = 66.642KiB/s, Write Throughput = 14.935KiB/s, Row Throughput = ~384/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 58ms
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,499 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-3-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,500 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-2-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,502 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-4-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,503 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-1-big
INFO  [CompactionExecutor:5] 2026-06-11 20:00:28,624 CompactionTask.java:173 - Compacting (31ad25f0-65d0-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-2-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-1-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-4-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-3-big-Data.db:level=0, ]
INFO  [IndexSummaryManager:1] 2026-06-11 20:00:28,681 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 20:00:28,681 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 22 sstables with memory pool size 24 MiB; current spaced used is 0.002033233642578125 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 20:00:28,682 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 20:00:28,684 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.002033233642578125 MiB, time spent: 2ms
INFO  [CompactionExecutor:5] 2026-06-11 20:00:28,839 CompactionTask.java:270 - Compacted (31ad25f0-65d0-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-5-big,] to level=0.  38.567KiB to 8.196KiB (~21% of original) in 214ms.  Read Throughput = 179.419KiB/s, Write Throughput = 38.129KiB/s, Row Throughput = ~764/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 44ms
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,840 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-2-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,841 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-1-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,842 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-4-big
INFO  [NonPeriodicTasks:1] 2026-06-11 20:00:28,843 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-3-big
INFO  [ScheduledTasks:1] 2026-06-11 21:00:26,649 ColumnFamilyStore.java:1012 - Enqueuing flush of system.compaction_history, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [ScheduledTasks:1] 2026-06-11 21:00:26,655 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:12] 2026-06-11 21:00:26,714 Flushing.java:145 - Writing Memtable-compaction_history@693807535(0.848KiB serialized bytes, 4 ops, 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:12] 2026-06-11 21:00:26,715 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-2-big-Data.db (0.471KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=14947519)
INFO  [PerDiskMemtableFlushWriter_0:13] 2026-06-11 21:00:26,725 Flushing.java:145 - Writing Memtable-sstable_activity@340934001(0.208KiB serialized bytes, 28 ops, 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:13] 2026-06-11 21:00:26,725 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-6-big-Data.db (0.854KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=14947519)
INFO  [ScheduledTasks:1] 2026-06-11 21:00:27,435 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 4.745KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:12] 2026-06-11 21:00:27,473 Flushing.java:145 - Writing Memtable-sstable_activity_v2@664617716(0.177KiB serialized bytes, 24 ops, 4.745KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:12] 2026-06-11 21:00:27,474 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-6-big-Data.db (0.620KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=14947519)
INFO  [ScheduledTasks:1] 2026-06-11 21:00:28,067 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:13] 2026-06-11 21:00:28,117 Flushing.java:145 - Writing Memtable-size_estimates@446022027(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:13] 2026-06-11 21:00:28,118 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-6-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=14947519)
INFO  [ScheduledTasks:1] 2026-06-11 21:00:28,367 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:12] 2026-06-11 21:00:28,407 Flushing.java:145 - Writing Memtable-table_estimates@597869279(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:12] 2026-06-11 21:00:28,409 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-6-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=14947519)
INFO  [IndexSummaryManager:1] 2026-06-11 21:00:28,685 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 21:00:28,685 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 28 sstables with memory pool size 24 MiB; current spaced used is 0.0021266937255859375 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 21:00:28,686 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 21:00:28,688 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0021266937255859375 MiB, time spent: 2ms
INFO  [ScheduledTasks:1] 2026-06-11 22:00:26,656 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:14] 2026-06-11 22:00:26,695 Flushing.java:145 - Writing Memtable-sstable_activity@382789691(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:14] 2026-06-11 22:00:26,695 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-7-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=16093851)
INFO  [ScheduledTasks:1] 2026-06-11 22:00:27,436 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:15] 2026-06-11 22:00:27,473 Flushing.java:145 - Writing Memtable-sstable_activity_v2@374909787(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:15] 2026-06-11 22:00:27,474 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-7-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=16093851)
INFO  [ScheduledTasks:1] 2026-06-11 22:00:28,067 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:14] 2026-06-11 22:00:28,104 Flushing.java:145 - Writing Memtable-size_estimates@404165777(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:14] 2026-06-11 22:00:28,106 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-7-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=16093851)
INFO  [ScheduledTasks:1] 2026-06-11 22:00:28,367 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:15] 2026-06-11 22:00:28,404 Flushing.java:145 - Writing Memtable-table_estimates@413091808(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:15] 2026-06-11 22:00:28,406 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-7-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=16093851)
INFO  [IndexSummaryManager:1] 2026-06-11 22:00:28,689 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 22:00:28,689 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 32 sstables with memory pool size 24 MiB; current spaced used is 0.0022382736206054688 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 22:00:28,690 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 22:00:28,692 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0022382736206054688 MiB, time spent: 3ms
INFO  [ScheduledTasks:1] 2026-06-11 23:00:26,656 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:16] 2026-06-11 23:00:26,704 Flushing.java:145 - Writing Memtable-sstable_activity@1336796251(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:16] 2026-06-11 23:00:26,704 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-8-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=17240183)
INFO  [CompactionExecutor:11] 2026-06-11 23:00:26,817 CompactionTask.java:173 - Compacting (55e6cb10-65e9-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-5-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-6-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-8-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-7-big-Data.db:level=0, ]
INFO  [CompactionExecutor:11] 2026-06-11 23:00:26,997 CompactionTask.java:270 - Compacted (55e6cb10-65e9-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-9-big,] to level=0.  0.585KiB to 0.080KiB (~13% of original) in 179ms.  Read Throughput = 3.260KiB/s, Write Throughput = 0.445KiB/s, Row Throughput = ~18/s.  20 total partitions merged to 1.  Partition merge counts were {1:16, 4:1, }. Time spent writing keys = 38ms
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:26,997 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-5-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:26,998 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-6-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:26,998 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-8-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:26,999 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-7-big
INFO  [ScheduledTasks:1] 2026-06-11 23:00:27,436 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.144KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:17] 2026-06-11 23:00:27,487 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1255780516(0.114KiB serialized bytes, 16 ops, 2.144KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:17] 2026-06-11 23:00:27,488 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-8-big-Data.db (0.253KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=17241084)
INFO  [CompactionExecutor:11] 2026-06-11 23:00:27,670 CompactionTask.java:173 - Compacting (5668cc50-65e9-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-6-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-7-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-5-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-8-big-Data.db:level=0, ]
INFO  [CompactionExecutor:11] 2026-06-11 23:00:27,855 CompactionTask.java:270 - Compacted (5668cc50-65e9-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-9-big,] to level=0.  0.593KiB to 0.077KiB (~13% of original) in 184ms.  Read Throughput = 3.213KiB/s, Write Throughput = 0.418KiB/s, Row Throughput = ~18/s.  20 total partitions merged to 1.  Partition merge counts were {1:16, 4:1, }. Time spent writing keys = 38ms
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:27,856 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-6-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:27,857 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-7-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:27,858 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-5-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:27,859 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-8-big
INFO  [ScheduledTasks:1] 2026-06-11 23:00:28,068 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:16] 2026-06-11 23:00:28,106 Flushing.java:145 - Writing Memtable-size_estimates@1097470942(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:16] 2026-06-11 23:00:28,108 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-8-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=17242012)
INFO  [CompactionExecutor:10] 2026-06-11 23:00:28,210 CompactionTask.java:173 - Compacting (56bb5920-65e9-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-5-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-8-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-7-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-6-big-Data.db:level=0, ]
INFO  [ScheduledTasks:1] 2026-06-11 23:00:28,367 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [CompactionExecutor:10] 2026-06-11 23:00:28,412 CompactionTask.java:270 - Compacted (56bb5920-65e9-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-9-big,] to level=0.  18.105KiB to 4.180KiB (~23% of original) in 201ms.  Read Throughput = 89.953KiB/s, Write Throughput = 20.766KiB/s, Row Throughput = ~384/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 43ms
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,412 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-8-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,413 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-7-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,414 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-5-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,415 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-6-big
INFO  [PerDiskMemtableFlushWriter_0:17] 2026-06-11 23:00:28,438 Flushing.java:145 - Writing Memtable-table_estimates@1142839183(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:17] 2026-06-11 23:00:28,440 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-8-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=17242012)
INFO  [CompactionExecutor:11] 2026-06-11 23:00:28,558 CompactionTask.java:173 - Compacting (56f04bd0-65e9-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-5-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-6-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-8-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-7-big-Data.db:level=0, ]
INFO  [IndexSummaryManager:1] 2026-06-11 23:00:28,693 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-11 23:00:28,693 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 23 sstables with memory pool size 24 MiB; current spaced used is 0.0020599365234375 MiB
INFO  [IndexSummaryManager:1] 2026-06-11 23:00:28,694 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-11 23:00:28,695 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0020599365234375 MiB, time spent: 1ms
INFO  [CompactionExecutor:11] 2026-06-11 23:00:28,755 CompactionTask.java:270 - Compacted (56f04bd0-65e9-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-9-big,] to level=0.  37.043KiB to 8.199KiB (~22% of original) in 197ms.  Read Throughput = 187.987KiB/s, Write Throughput = 41.609KiB/s, Row Throughput = ~764/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 44ms
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,756 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-5-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,756 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-6-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,757 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-8-big
INFO  [NonPeriodicTasks:1] 2026-06-11 23:00:28,758 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-7-big
INFO  [ScheduledTasks:1] 2026-06-12 00:00:26,649 ColumnFamilyStore.java:1012 - Enqueuing flush of system.compaction_history, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [ScheduledTasks:1] 2026-06-12 00:00:26,657 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:18] 2026-06-12 00:00:26,743 Flushing.java:145 - Writing Memtable-compaction_history@1130468143(0.848KiB serialized bytes, 4 ops, 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:18] 2026-06-12 00:00:26,743 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-3-big-Data.db (0.471KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=18390081)
INFO  [PerDiskMemtableFlushWriter_0:19] 2026-06-12 00:00:26,751 Flushing.java:145 - Writing Memtable-sstable_activity@638488801(0.208KiB serialized bytes, 28 ops, 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:19] 2026-06-12 00:00:26,751 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-10-big-Data.db (0.854KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=18390081)
INFO  [CompactionExecutor:11] 2026-06-12 00:00:27,398 AutoSavingCache.java:391 - Saved KeyCache (272 items) in 30 ms
INFO  [ScheduledTasks:1] 2026-06-12 00:00:27,437 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 4.745KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:18] 2026-06-12 00:00:27,473 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1302754611(0.177KiB serialized bytes, 24 ops, 4.745KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:18] 2026-06-12 00:00:27,474 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-10-big-Data.db (0.620KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=18390081)
INFO  [ScheduledTasks:1] 2026-06-12 00:00:28,068 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:19] 2026-06-12 00:00:28,118 Flushing.java:145 - Writing Memtable-size_estimates@684292688(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:19] 2026-06-12 00:00:28,119 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-10-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=18390081)
INFO  [ScheduledTasks:1] 2026-06-12 00:00:28,368 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:18] 2026-06-12 00:00:28,431 Flushing.java:145 - Writing Memtable-table_estimates@1234827359(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:18] 2026-06-12 00:00:28,434 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-10-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=18390081)
INFO  [IndexSummaryManager:1] 2026-06-12 00:00:28,696 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 00:00:28,696 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 29 sstables with memory pool size 24 MiB; current spaced used is 0.00214385986328125 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 00:00:28,696 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 00:00:28,698 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.00214385986328125 MiB, time spent: 2ms
INFO  [ScheduledTasks:1] 2026-06-12 01:00:26,657 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:20] 2026-06-12 01:00:26,708 Flushing.java:145 - Writing Memtable-sstable_activity@1317319899(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:20] 2026-06-12 01:00:26,708 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-11-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=19536421)
INFO  [ScheduledTasks:1] 2026-06-12 01:00:27,437 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:21] 2026-06-12 01:00:27,484 Flushing.java:145 - Writing Memtable-sstable_activity_v2@258051307(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:21] 2026-06-12 01:00:27,485 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-11-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=19536421)
INFO  [ScheduledTasks:1] 2026-06-12 01:00:28,069 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:20] 2026-06-12 01:00:28,119 Flushing.java:145 - Writing Memtable-size_estimates@1078150011(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:20] 2026-06-12 01:00:28,120 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-11-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=19536421)
INFO  [ScheduledTasks:1] 2026-06-12 01:00:28,368 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:21] 2026-06-12 01:00:28,410 Flushing.java:145 - Writing Memtable-table_estimates@27685751(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:21] 2026-06-12 01:00:28,412 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-11-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=19536421)
INFO  [IndexSummaryManager:1] 2026-06-12 01:00:28,699 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 01:00:28,699 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 33 sstables with memory pool size 24 MiB; current spaced used is 0.0022554397583007812 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 01:00:28,699 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 01:00:28,700 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0022554397583007812 MiB, time spent: 1ms
INFO  [ScheduledTasks:1] 2026-06-12 02:00:26,658 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:22] 2026-06-12 02:00:26,719 Flushing.java:145 - Writing Memtable-sstable_activity@1195054578(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:22] 2026-06-12 02:00:26,720 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-12-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=20682753)
INFO  [CompactionExecutor:10] 2026-06-12 02:00:26,824 CompactionTask.java:173 - Compacting (7b34ed70-6602-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-12-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-9-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-10-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-11-big-Data.db:level=0, ]
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,004 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-11-big
INFO  [CompactionExecutor:10] 2026-06-12 02:00:27,004 CompactionTask.java:270 - Compacted (7b34ed70-6602-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-13-big,] to level=0.  0.587KiB to 0.080KiB (~13% of original) in 179ms.  Read Throughput = 3.276KiB/s, Write Throughput = 0.446KiB/s, Row Throughput = ~18/s.  20 total partitions merged to 1.  Partition merge counts were {1:16, 4:1, }. Time spent writing keys = 44ms
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,005 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-12-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,006 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-9-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,007 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-10-big
INFO  [ScheduledTasks:1] 2026-06-12 02:00:27,438 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.146KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:23] 2026-06-12 02:00:27,486 Flushing.java:145 - Writing Memtable-sstable_activity_v2@945911343(0.114KiB serialized bytes, 16 ops, 2.146KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:23] 2026-06-12 02:00:27,486 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-12-big-Data.db (0.256KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=20683665)
INFO  [CompactionExecutor:10] 2026-06-12 02:00:27,589 CompactionTask.java:173 - Compacting (7ba9cf50-6602-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-9-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-10-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-11-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-12-big-Data.db:level=0, ]
INFO  [CompactionExecutor:10] 2026-06-12 02:00:27,768 CompactionTask.java:270 - Compacted (7ba9cf50-6602-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-13-big,] to level=0.  0.603KiB to 0.158KiB (~26% of original) in 178ms.  Read Throughput = 3.384KiB/s, Write Throughput = 0.888KiB/s, Row Throughput = ~18/s.  20 total partitions merged to 5.  Partition merge counts were {1:16, 4:1, }. Time spent writing keys = 44ms
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,768 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-9-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,769 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-10-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,770 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-11-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:27,771 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-12-big
INFO  [ScheduledTasks:1] 2026-06-12 02:00:28,069 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:22] 2026-06-12 02:00:28,119 Flushing.java:145 - Writing Memtable-size_estimates@1241310053(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:22] 2026-06-12 02:00:28,120 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-12-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=20684596)
INFO  [CompactionExecutor:11] 2026-06-12 02:00:28,225 CompactionTask.java:173 - Compacting (7c0ab400-6602-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-9-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-11-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-10-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-12-big-Data.db:level=0, ]
INFO  [ScheduledTasks:1] 2026-06-12 02:00:28,369 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [CompactionExecutor:11] 2026-06-12 02:00:28,437 CompactionTask.java:270 - Compacted (7c0ab400-6602-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-13-big,] to level=0.  18.123KiB to 4.178KiB (~23% of original) in 211ms.  Read Throughput = 85.657KiB/s, Write Throughput = 19.745KiB/s, Row Throughput = ~384/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 45ms
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,437 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-9-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,438 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-11-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,439 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-10-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,440 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-12-big
INFO  [PerDiskMemtableFlushWriter_0:23] 2026-06-12 02:00:28,445 Flushing.java:145 - Writing Memtable-table_estimates@916889427(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:23] 2026-06-12 02:00:28,448 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-12-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=20684596)
INFO  [CompactionExecutor:10] 2026-06-12 02:00:28,584 CompactionTask.java:173 - Compacting (7c41a280-6602-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-9-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-12-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-10-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-11-big-Data.db:level=0, ]
INFO  [IndexSummaryManager:1] 2026-06-12 02:00:28,701 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 02:00:28,701 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 24 sstables with memory pool size 24 MiB; current spaced used is 0.002086639404296875 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 02:00:28,702 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 02:00:28,703 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.002086639404296875 MiB, time spent: 1ms
INFO  [CompactionExecutor:10] 2026-06-12 02:00:28,769 CompactionTask.java:270 - Compacted (7c41a280-6602-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-13-big,] to level=0.  37.065KiB to 8.179KiB (~22% of original) in 184ms.  Read Throughput = 200.833KiB/s, Write Throughput = 44.314KiB/s, Row Throughput = ~764/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 44ms
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,769 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-9-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,770 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-12-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,771 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-10-big
INFO  [NonPeriodicTasks:1] 2026-06-12 02:00:28,772 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-11-big
INFO  [ScheduledTasks:1] 2026-06-12 03:00:26,655 ColumnFamilyStore.java:1012 - Enqueuing flush of system.compaction_history, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [ScheduledTasks:1] 2026-06-12 03:00:26,658 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:24] 2026-06-12 03:00:26,745 Flushing.java:145 - Writing Memtable-compaction_history@1705529781(0.848KiB serialized bytes, 4 ops, 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:24] 2026-06-12 03:00:26,745 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-4-big-Data.db (0.471KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=21838312)
INFO  [PerDiskMemtableFlushWriter_0:25] 2026-06-12 03:00:26,755 Flushing.java:145 - Writing Memtable-sstable_activity@439028376(0.208KiB serialized bytes, 28 ops, 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:25] 2026-06-12 03:00:26,756 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-14-big-Data.db (0.854KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=21838312)
INFO  [CompactionExecutor:11] 2026-06-12 03:00:26,967 CompactionTask.java:173 - Compacting (dd0f2760-660a-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-4-big-Data.db:level=0, /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-3-big-Data.db:level=0, /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-1-big-Data.db:level=0, /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-2-big-Data.db:level=0, ]
INFO  [CompactionExecutor:11] 2026-06-12 03:00:27,143 CompactionTask.java:270 - Compacted (dd0f2760-660a-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-5-big,] to level=0.  1.360KiB to 1.029KiB (~75% of original) in 176ms.  Read Throughput = 7.707KiB/s, Write Throughput = 5.831KiB/s, Row Throughput = ~46/s.  23 total partitions merged to 23.  Partition merge counts were {1:23, }. Time spent writing keys = 43ms
INFO  [NonPeriodicTasks:1] 2026-06-12 03:00:27,144 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-1-big
INFO  [NonPeriodicTasks:1] 2026-06-12 03:00:27,145 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-2-big
INFO  [NonPeriodicTasks:1] 2026-06-12 03:00:27,146 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-4-big
INFO  [NonPeriodicTasks:1] 2026-06-12 03:00:27,147 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-3-big
INFO  [ScheduledTasks:1] 2026-06-12 03:00:27,438 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 6.063KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:24] 2026-06-12 03:00:27,485 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1802482544(0.208KiB serialized bytes, 28 ops, 6.063KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:24] 2026-06-12 03:00:27,485 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-14-big-Data.db (0.820KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=21838996)
INFO  [ScheduledTasks:1] 2026-06-12 03:00:28,070 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:25] 2026-06-12 03:00:28,108 Flushing.java:145 - Writing Memtable-size_estimates@351070125(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:25] 2026-06-12 03:00:28,109 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-14-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=21838996)
INFO  [ScheduledTasks:1] 2026-06-12 03:00:28,369 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:24] 2026-06-12 03:00:28,416 Flushing.java:145 - Writing Memtable-table_estimates@1867528901(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:24] 2026-06-12 03:00:28,418 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-14-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=21838996)
INFO  [IndexSummaryManager:1] 2026-06-12 03:00:28,704 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 03:00:28,704 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 27 sstables with memory pool size 24 MiB; current spaced used is 0.0020961761474609375 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 03:00:28,704 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 03:00:28,705 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0020961761474609375 MiB, time spent: 1ms
INFO  [ScheduledTasks:1] 2026-06-12 04:00:26,658 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.166KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:26] 2026-06-12 04:00:26,706 Flushing.java:145 - Writing Memtable-sstable_activity@1749721495(0.114KiB serialized bytes, 16 ops, 2.166KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:26] 2026-06-12 04:00:26,707 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-15-big-Data.db (0.275KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=22985336)
INFO  [CompactionExecutor:11] 2026-06-12 04:00:27,432 AutoSavingCache.java:391 - Saved KeyCache (3520 items) in 63 ms
INFO  [ScheduledTasks:1] 2026-06-12 04:00:27,438 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:27] 2026-06-12 04:00:27,476 Flushing.java:145 - Writing Memtable-sstable_activity_v2@13266174(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:27] 2026-06-12 04:00:27,476 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-15-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=22985336)
INFO  [ScheduledTasks:1] 2026-06-12 04:00:28,070 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:26] 2026-06-12 04:00:28,116 Flushing.java:145 - Writing Memtable-size_estimates@1720537838(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:26] 2026-06-12 04:00:28,117 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-15-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=22985336)
INFO  [ScheduledTasks:1] 2026-06-12 04:00:28,370 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:27] 2026-06-12 04:00:28,416 Flushing.java:145 - Writing Memtable-table_estimates@235770519(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:27] 2026-06-12 04:00:28,418 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-15-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=22985336)
INFO  [IndexSummaryManager:1] 2026-06-12 04:00:28,706 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 04:00:28,706 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 31 sstables with memory pool size 24 MiB; current spaced used is 0.0022077560424804688 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 04:00:28,707 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 04:00:28,708 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0022077560424804688 MiB, time spent: 1ms
INFO  [ScheduledTasks:1] 2026-06-12 05:00:26,659 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:28] 2026-06-12 05:00:26,696 Flushing.java:145 - Writing Memtable-sstable_activity@2110118434(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:28] 2026-06-12 05:00:26,697 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-16-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=24131668)
INFO  [CompactionExecutor:11] 2026-06-12 05:00:26,829 CompactionTask.java:173 - Compacting (a0830fd0-661b-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-15-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-16-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-14-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-13-big-Data.db:level=0, ]
INFO  [CompactionExecutor:11] 2026-06-12 05:00:27,031 CompactionTask.java:270 - Compacted (a0830fd0-661b-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-17-big,] to level=0.  0.658KiB to 0.080KiB (~12% of original) in 200ms.  Read Throughput = 3.282KiB/s, Write Throughput = 0.398KiB/s, Row Throughput = ~22/s.  24 total partitions merged to 1.  Partition merge counts were {1:20, 4:1, }. Time spent writing keys = 47ms
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,033 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-15-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,034 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-16-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,035 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-14-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,036 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-13-big
INFO  [ScheduledTasks:1] 2026-06-12 05:00:27,439 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.147KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:29] 2026-06-12 05:00:27,486 Flushing.java:145 - Writing Memtable-sstable_activity_v2@5088012(0.114KiB serialized bytes, 16 ops, 2.147KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:29] 2026-06-12 05:00:27,487 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-16-big-Data.db (0.257KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=24132573)
INFO  [CompactionExecutor:11] 2026-06-12 05:00:27,588 CompactionTask.java:173 - Compacting (a0f6b930-661b-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-16-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-14-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-15-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-13-big-Data.db:level=0, ]
INFO  [CompactionExecutor:11] 2026-06-12 05:00:27,758 CompactionTask.java:270 - Compacted (a0f6b930-661b-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-17-big,] to level=0.  0.768KiB to 0.157KiB (~20% of original) in 169ms.  Read Throughput = 4.518KiB/s, Write Throughput = 0.925KiB/s, Row Throughput = ~26/s.  28 total partitions merged to 5.  Partition merge counts were {1:24, 4:1, }. Time spent writing keys = 37ms
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,758 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-16-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,759 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-14-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,760 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-15-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:27,761 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-13-big
INFO  [ScheduledTasks:1] 2026-06-12 05:00:28,071 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:28] 2026-06-12 05:00:28,120 Flushing.java:145 - Writing Memtable-size_estimates@1929526250(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:28] 2026-06-12 05:00:28,121 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-16-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=24133505)
INFO  [CompactionExecutor:10] 2026-06-12 05:00:28,238 CompactionTask.java:173 - Compacting (a15a0ee0-661b-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-14-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-15-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-16-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-13-big-Data.db:level=0, ]
INFO  [ScheduledTasks:1] 2026-06-12 05:00:28,370 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:29] 2026-06-12 05:00:28,437 Flushing.java:145 - Writing Memtable-table_estimates@243948917(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:29] 2026-06-12 05:00:28,439 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-16-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=24133505)
INFO  [CompactionExecutor:10] 2026-06-12 05:00:28,466 CompactionTask.java:270 - Compacted (a15a0ee0-661b-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-17-big,] to level=0.  18.126KiB to 4.163KiB (~22% of original) in 227ms.  Read Throughput = 79.699KiB/s, Write Throughput = 18.305KiB/s, Row Throughput = ~384/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 50ms
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,466 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-14-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,467 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-15-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,468 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-16-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,469 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-13-big
INFO  [CompactionExecutor:11] 2026-06-12 05:00:28,587 CompactionTask.java:173 - Compacting (a18f28a0-661b-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-16-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-15-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-13-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-14-big-Data.db:level=0, ]
INFO  [IndexSummaryManager:1] 2026-06-12 05:00:28,708 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 05:00:28,709 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 22 sstables with memory pool size 24 MiB; current spaced used is 0.0020399093627929688 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 05:00:28,709 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 05:00:28,710 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0020399093627929688 MiB, time spent: 1ms
INFO  [CompactionExecutor:11] 2026-06-12 05:00:28,764 CompactionTask.java:270 - Compacted (a18f28a0-661b-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-17-big,] to level=0.  37.083KiB to 8.173KiB (~22% of original) in 175ms.  Read Throughput = 210.804KiB/s, Write Throughput = 46.459KiB/s, Row Throughput = ~764/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 44ms
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,764 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-16-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,765 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-15-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,765 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-13-big
INFO  [NonPeriodicTasks:1] 2026-06-12 05:00:28,766 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-14-big
INFO  [ScheduledTasks:1] 2026-06-12 06:00:26,656 ColumnFamilyStore.java:1012 - Enqueuing flush of system.compaction_history, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [ScheduledTasks:1] 2026-06-12 06:00:26,659 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:30] 2026-06-12 06:00:26,720 Flushing.java:145 - Writing Memtable-compaction_history@1831064616(0.848KiB serialized bytes, 4 ops, 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:30] 2026-06-12 06:00:26,720 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-6-big-Data.db (0.471KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=25281582)
INFO  [PerDiskMemtableFlushWriter_0:31] 2026-06-12 06:00:26,730 Flushing.java:145 - Writing Memtable-sstable_activity@512248908(0.208KiB serialized bytes, 28 ops, 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:31] 2026-06-12 06:00:26,730 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-18-big-Data.db (0.854KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=25281582)
INFO  [ScheduledTasks:1] 2026-06-12 06:00:27,439 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 4.757KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:30] 2026-06-12 06:00:27,478 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1675896828(0.177KiB serialized bytes, 24 ops, 4.757KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:30] 2026-06-12 06:00:27,478 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-18-big-Data.db (0.632KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=25281582)
INFO  [ScheduledTasks:1] 2026-06-12 06:00:28,071 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:31] 2026-06-12 06:00:28,132 Flushing.java:145 - Writing Memtable-size_estimates@273654253(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:31] 2026-06-12 06:00:28,133 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-18-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=25281582)
INFO  [ScheduledTasks:1] 2026-06-12 06:00:28,370 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:30] 2026-06-12 06:00:28,408 Flushing.java:145 - Writing Memtable-table_estimates@1742454616(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:30] 2026-06-12 06:00:28,410 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-18-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=25281582)
INFO  [IndexSummaryManager:1] 2026-06-12 06:00:28,711 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 06:00:28,711 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 28 sstables with memory pool size 24 MiB; current spaced used is 0.0021371841430664062 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 06:00:28,711 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 06:00:28,713 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0021371841430664062 MiB, time spent: 1ms
INFO  [ScheduledTasks:1] 2026-06-12 07:00:26,660 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:32] 2026-06-12 07:00:26,707 Flushing.java:145 - Writing Memtable-sstable_activity@683417074(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:32] 2026-06-12 07:00:26,707 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-19-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=26427906)
INFO  [ScheduledTasks:1] 2026-06-12 07:00:27,440 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:33] 2026-06-12 07:00:27,479 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1608486794(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:33] 2026-06-12 07:00:27,480 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-19-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=26427906)
INFO  [ScheduledTasks:1] 2026-06-12 07:00:28,072 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:32] 2026-06-12 07:00:28,109 Flushing.java:145 - Writing Memtable-size_estimates@645654165(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:32] 2026-06-12 07:00:28,110 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-19-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=26427906)
INFO  [ScheduledTasks:1] 2026-06-12 07:00:28,371 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:33] 2026-06-12 07:00:28,416 Flushing.java:145 - Writing Memtable-table_estimates@1360558593(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:33] 2026-06-12 07:00:28,418 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-19-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=26427906)
INFO  [IndexSummaryManager:1] 2026-06-12 07:00:28,713 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 07:00:28,714 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 32 sstables with memory pool size 24 MiB; current spaced used is 0.0022487640380859375 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 07:00:28,714 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 07:00:28,715 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0022487640380859375 MiB, time spent: 1ms
INFO  [ScheduledTasks:1] 2026-06-12 08:00:26,660 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:34] 2026-06-12 08:00:26,720 Flushing.java:145 - Writing Memtable-sstable_activity@1276782318(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:34] 2026-06-12 08:00:26,721 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-20-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=27574230)
INFO  [CompactionExecutor:13] 2026-06-12 08:00:26,826 CompactionTask.java:173 - Compacting (c5cfab90-6634-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-18-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-17-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-19-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-20-big-Data.db:level=0, ]
INFO  [CompactionExecutor:13] 2026-06-12 08:00:27,021 CompactionTask.java:270 - Compacted (c5cfab90-6634-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-21-big,] to level=0.  0.572KiB to 0.080KiB (~13% of original) in 193ms.  Read Throughput = 2.953KiB/s, Write Throughput = 0.413KiB/s, Row Throughput = ~18/s.  20 total partitions merged to 1.  Partition merge counts were {1:16, 4:1, }. Time spent writing keys = 56ms
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,022 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-18-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,023 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-17-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,024 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-19-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,025 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-20-big
INFO  [CompactionExecutor:12] 2026-06-12 08:00:27,398 AutoSavingCache.java:391 - Saved KeyCache (3524 items) in 29 ms
INFO  [ScheduledTasks:1] 2026-06-12 08:00:27,440 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.147KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:35] 2026-06-12 08:00:27,480 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1971660220(0.114KiB serialized bytes, 16 ops, 2.147KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:35] 2026-06-12 08:00:27,480 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-20-big-Data.db (0.257KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=27575135)
INFO  [CompactionExecutor:13] 2026-06-12 08:00:27,584 CompactionTask.java:173 - Compacting (c64354f0-6634-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-17-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-19-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-18-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-20-big-Data.db:level=0, ]
INFO  [CompactionExecutor:13] 2026-06-12 08:00:27,773 CompactionTask.java:270 - Compacted (c64354f0-6634-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-21-big,] to level=0.  0.685KiB to 0.156KiB (~22% of original) in 188ms.  Read Throughput = 3.626KiB/s, Write Throughput = 0.827KiB/s, Row Throughput = ~22/s.  24 total partitions merged to 5.  Partition merge counts were {1:20, 4:1, }. Time spent writing keys = 37ms
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,776 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-17-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,777 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-19-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,778 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-18-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:27,779 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-20-big
INFO  [ScheduledTasks:1] 2026-06-12 08:00:28,072 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:34] 2026-06-12 08:00:28,120 Flushing.java:145 - Writing Memtable-size_estimates@1121833245(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:34] 2026-06-12 08:00:28,121 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-20-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=27576067)
INFO  [CompactionExecutor:12] 2026-06-12 08:00:28,226 CompactionTask.java:173 - Compacting (c6a54b10-6634-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-18-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-20-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-19-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-17-big-Data.db:level=0, ]
INFO  [ScheduledTasks:1] 2026-06-12 08:00:28,371 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [CompactionExecutor:12] 2026-06-12 08:00:28,435 CompactionTask.java:270 - Compacted (c6a54b10-6634-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-21-big,] to level=0.  18.130KiB to 4.175KiB (~23% of original) in 208ms.  Read Throughput = 86.855KiB/s, Write Throughput = 20.000KiB/s, Row Throughput = ~384/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 41ms
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,436 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-18-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,436 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-20-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,437 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-19-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,438 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-17-big
INFO  [PerDiskMemtableFlushWriter_0:35] 2026-06-12 08:00:28,443 Flushing.java:145 - Writing Memtable-table_estimates@2067977596(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:35] 2026-06-12 08:00:28,446 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-20-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=27576067)
INFO  [CompactionExecutor:13] 2026-06-12 08:00:28,575 CompactionTask.java:173 - Compacting (c6dab2f0-6634-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-19-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-20-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-17-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-18-big-Data.db:level=0, ]
INFO  [IndexSummaryManager:1] 2026-06-12 08:00:28,716 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 08:00:28,716 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 23 sstables with memory pool size 24 MiB; current spaced used is 0.0020599365234375 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 08:00:28,716 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 08:00:28,718 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0020599365234375 MiB, time spent: 1ms
INFO  [CompactionExecutor:13] 2026-06-12 08:00:28,768 CompactionTask.java:270 - Compacted (c6dab2f0-6634-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-21-big,] to level=0.  37.086KiB to 8.212KiB (~22% of original) in 192ms.  Read Throughput = 193.096KiB/s, Write Throughput = 42.757KiB/s, Row Throughput = ~764/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 46ms
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,768 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-19-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,769 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-20-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,770 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-17-big
INFO  [NonPeriodicTasks:1] 2026-06-12 08:00:28,771 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-18-big
INFO  [ScheduledTasks:1] 2026-06-12 09:00:26,657 ColumnFamilyStore.java:1012 - Enqueuing flush of system.compaction_history, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [ScheduledTasks:1] 2026-06-12 09:00:26,661 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:36] 2026-06-12 09:00:26,722 Flushing.java:145 - Writing Memtable-compaction_history@2073286599(0.848KiB serialized bytes, 4 ops, 5.082KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:36] 2026-06-12 09:00:26,723 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/nb-7-big-Data.db (0.471KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=28724144)
INFO  [PerDiskMemtableFlushWriter_0:37] 2026-06-12 09:00:26,735 Flushing.java:145 - Writing Memtable-sstable_activity@663294461(0.208KiB serialized bytes, 28 ops, 6.096KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:37] 2026-06-12 09:00:26,736 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-22-big-Data.db (0.854KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=28724144)
INFO  [ScheduledTasks:1] 2026-06-12 09:00:27,441 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 4.757KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:36] 2026-06-12 09:00:27,487 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1968449221(0.177KiB serialized bytes, 24 ops, 4.757KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:36] 2026-06-12 09:00:27,488 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-22-big-Data.db (0.632KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=28724144)
INFO  [ScheduledTasks:1] 2026-06-12 09:00:28,072 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:37] 2026-06-12 09:00:28,109 Flushing.java:145 - Writing Memtable-size_estimates@693037948(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:37] 2026-06-12 09:00:28,111 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-22-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=28724144)
INFO  [ScheduledTasks:1] 2026-06-12 09:00:28,372 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:36] 2026-06-12 09:00:28,409 Flushing.java:145 - Writing Memtable-table_estimates@1902886071(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:36] 2026-06-12 09:00:28,411 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-22-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=28724144)
INFO  [IndexSummaryManager:1] 2026-06-12 09:00:28,718 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 09:00:28,719 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 29 sstables with memory pool size 24 MiB; current spaced used is 0.0021581649780273438 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 09:00:28,719 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 09:00:28,719 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.0021581649780273438 MiB, time spent: 0ms
INFO  [ScheduledTasks:1] 2026-06-12 10:00:26,661 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:38] 2026-06-12 10:00:26,711 Flushing.java:145 - Writing Memtable-sstable_activity@1867307492(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:38] 2026-06-12 10:00:26,712 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-23-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=29870468)
INFO  [ScheduledTasks:1] 2026-06-12 10:00:27,441 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:39] 2026-06-12 10:00:27,490 Flushing.java:145 - Writing Memtable-sstable_activity_v2@1941249254(0.083KiB serialized bytes, 12 ops, 0.843KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:39] 2026-06-12 10:00:27,490 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-23-big-Data.db (0.068KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=29870468)
INFO  [ScheduledTasks:1] 2026-06-12 10:00:28,073 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:38] 2026-06-12 10:00:28,120 Flushing.java:145 - Writing Memtable-size_estimates@1636510333(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:38] 2026-06-12 10:00:28,121 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-23-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=29870468)
INFO  [ScheduledTasks:1] 2026-06-12 10:00:28,372 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:39] 2026-06-12 10:00:28,415 Flushing.java:145 - Writing Memtable-table_estimates@2104683744(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:39] 2026-06-12 10:00:28,416 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-23-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=29870468)
INFO  [IndexSummaryManager:1] 2026-06-12 10:00:28,720 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 10:00:28,720 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 33 sstables with memory pool size 24 MiB; current spaced used is 0.002269744873046875 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 10:00:28,721 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 10:00:28,722 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.002269744873046875 MiB, time spent: 1ms
INFO  [ScheduledTasks:1] 2026-06-12 11:00:26,662 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:40] 2026-06-12 11:00:26,708 Flushing.java:145 - Writing Memtable-sstable_activity@829192621(0.083KiB serialized bytes, 12 ops, 0.846KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:40] 2026-06-12 11:00:26,709 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-24-big-Data.db (0.071KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=31016792)
INFO  [CompactionExecutor:12] 2026-06-12 11:00:26,814 CompactionTask.java:173 - Compacting (eb1b0ed0-664d-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-22-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-21-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-23-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-24-big-Data.db:level=0, ]
INFO  [CompactionExecutor:12] 2026-06-12 11:00:26,983 CompactionTask.java:270 - Compacted (eb1b0ed0-664d-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-25-big,] to level=0.  0.576KiB to 0.080KiB (~13% of original) in 168ms.  Read Throughput = 3.420KiB/s, Write Throughput = 0.475KiB/s, Row Throughput = ~18/s.  20 total partitions merged to 1.  Partition merge counts were {1:16, 4:1, }. Time spent writing keys = 37ms
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:26,983 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-22-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:26,984 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-21-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:26,985 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-23-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:26,985 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/nb-24-big
INFO  [ScheduledTasks:1] 2026-06-12 11:00:27,442 ColumnFamilyStore.java:1012 - Enqueuing flush of system.sstable_activity_v2, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 2.147KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:41] 2026-06-12 11:00:27,501 Flushing.java:145 - Writing Memtable-sstable_activity_v2@110944865(0.114KiB serialized bytes, 16 ops, 2.147KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:41] 2026-06-12 11:00:27,502 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-24-big-Data.db (0.257KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=31017697)
INFO  [CompactionExecutor:14] 2026-06-12 11:00:27,603 CompactionTask.java:173 - Compacting (eb939a30-664d-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-24-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-23-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-22-big-Data.db:level=0, /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-21-big-Data.db:level=0, ]
INFO  [CompactionExecutor:14] 2026-06-12 11:00:27,771 CompactionTask.java:270 - Compacted (eb939a30-664d-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-25-big,] to level=0.  0.665KiB to 0.077KiB (~11% of original) in 167ms.  Read Throughput = 3.977KiB/s, Write Throughput = 0.461KiB/s, Row Throughput = ~22/s.  24 total partitions merged to 1.  Partition merge counts were {1:20, 4:1, }. Time spent writing keys = 36ms
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:27,771 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-23-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:27,772 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-22-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:27,773 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-21-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:27,774 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/sstable_activity_v2-62efe31f3be8310c8d298963439c1288/nb-24-big
INFO  [ScheduledTasks:1] 2026-06-12 11:00:28,073 ColumnFamilyStore.java:1012 - Enqueuing flush of system.size_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:40] 2026-06-12 11:00:28,141 Flushing.java:145 - Writing Memtable-size_estimates@1068204528(40.547KiB serialized bytes, 4320 ops, 244.673KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:40] 2026-06-12 11:00:28,142 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-24-big-Data.db (28.813KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=31018629)
INFO  [CompactionExecutor:12] 2026-06-12 11:00:28,243 CompactionTask.java:173 - Compacting (ebf51b20-664d-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-22-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-23-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-24-big-Data.db:level=0, /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-21-big-Data.db:level=0, ]
INFO  [ScheduledTasks:1] 2026-06-12 11:00:28,372 ColumnFamilyStore.java:1012 - Enqueuing flush of system.table_estimates, Reason: MEMTABLE_PERIOD_EXPIRED, Usage: 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap
INFO  [PerDiskMemtableFlushWriter_0:41] 2026-06-12 11:00:28,445 Flushing.java:145 - Writing Memtable-table_estimates@140188866(87.703KiB serialized bytes, 8640 ops, 613.896KiB (0%) on-heap, 0.000KiB (0%) off-heap), flushed range = [min(-9223372036854775808), max(9223372036854775807))
INFO  [PerDiskMemtableFlushWriter_0:41] 2026-06-12 11:00:28,447 Flushing.java:171 - Completed flushing /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-24-big-Data.db (65.685KiB) for commitlog position CommitLogPosition(segmentId=1781193624713, position=31018629)
INFO  [CompactionExecutor:12] 2026-06-12 11:00:28,454 CompactionTask.java:270 - Compacted (ebf51b20-664d-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-25-big,] to level=0.  18.138KiB to 4.182KiB (~23% of original) in 210ms.  Read Throughput = 85.976KiB/s, Write Throughput = 19.821KiB/s, Row Throughput = ~384/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 40ms
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,455 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-21-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,456 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-22-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,457 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-23-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,458 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/nb-24-big
INFO  [CompactionExecutor:14] 2026-06-12 11:00:28,585 CompactionTask.java:173 - Compacting (ec294a80-664d-11f1-bd1a-d9b5a0fbe784) [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-21-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-22-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-23-big-Data.db:level=0, /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-24-big-Data.db:level=0, ]
INFO  [IndexSummaryManager:1] 2026-06-12 11:00:28,722 IndexSummaryRedistribution.java:87 - Redistributing index summaries
INFO  [IndexSummaryManager:1] 2026-06-12 11:00:28,723 IndexSummaryRedistribution.java:98 - Beginning redistribution of index summaries for 24 sstables with memory pool size 24 MiB; current spaced used is 0.002086639404296875 MiB
INFO  [IndexSummaryManager:1] 2026-06-12 11:00:28,723 IndexSummaryRedistribution.java:250 - index summaries: downsample: 0, force resample: 0, upsample: 0, force upsample: 0
INFO  [IndexSummaryManager:1] 2026-06-12 11:00:28,724 IndexSummaryRedistribution.java:137 - Completed resizing of index summaries; current approximate memory used: 0.002086639404296875 MiB, time spent: 1ms
INFO  [CompactionExecutor:14] 2026-06-12 11:00:28,759 CompactionTask.java:270 - Compacted (ec294a80-664d-11f1-bd1a-d9b5a0fbe784) 4 sstables to [/var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-25-big,] to level=0.  37.107KiB to 8.202KiB (~22% of original) in 174ms.  Read Throughput = 213.154KiB/s, Write Throughput = 47.115KiB/s, Row Throughput = ~764/s.  16 total partitions merged to 4.  Partition merge counts were {4:4, }. Time spent writing keys = 43ms
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,760 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-21-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,761 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-22-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,761 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-23-big
INFO  [NonPeriodicTasks:1] 2026-06-12 11:00:28,762 SSTable.java:127 - Deleting sstable: /var/lib/cassandra/data/system/table_estimates-176c39cdb93d33a5a2188eb06a56f66e/nb-24-big
