You can cancel (pause) Workflows using the defuse_wflows command of the LaunchPad:
lpad defuse_wflows -i <FW_IDS>
where <FW_IDS> is a numerical id of one of the FireWorks in the workflow you want to defuse (or a list of space-separated ids). This will defuse the entire Workflow.
Instead of specifying ids, you can also specify a name (-n), a state (-s), or a custom query (-q) for the workflow. The full command is thus:
lpad defuse_wflows [-i FW_ID] [-n NAME] [-s STATE] [-q QUERY]
Refer to the documentation (lpad defuse_wflows -h) for more information.
If you later decide you want to run a defused workflow (resume), you can use the command:
lpad reignite_wflows -i <FW_IDS>
where <FW_IDS> is a numerical id of one of the FireWorks in the workflow you want to reignite (or a list of space-separated ids). This will reignite the entire Workflow. Note that the reignite command will not re-run FireWorks in a workflow that have already been run. Only FireWorks that were never run before will be run upon reignition. To re-run a Firework, please see the rerun tutorial.
You can cancel and restart individual FireWorks instead of entire sub-Workflows using the lpad defuse_fws and lpad rerun_fws commands. These commands will only pause/restart the current Firework (and by extension, any dependent children), but not any parents or siblings. See above and use the built-in help (e.g., lpad rerun_fws -h) for more information.
There are both “hard” and “soft” deletes of jobs from the FireWorks database. The archive command is a soft delete that prevents all steps in a Workflow from running. It also archives any FireWorks in the Workflow that already ran, in effect simulating that they never existed. Therefore, the Workflow is for practical purposes erased. However, archived Workflows still exist in the database, and you can query them down the road for job provenance, but you cannot rerun them.
To archive Workflows, use the command:
lpad archive_wflows -i <FW_IDS>
where <FW_IDS> is the numerical id of the Firework you want to defuse (or a list of space-separated ids). Note that all FireWorks in the Workflow will be archived, regardless of which fw_id you chose.
Instead of specifying ids, you can also specify a name (-n), a state (-s), or a custom query (-q). The full command is thus:
lpad archive_wflows [-i FW_ID] [-n NAME] [-s STATE] [-q QUERY]
Refer to the documentation (lpad archive_wflows -h) for more information.
The delete command is a hard delete that removes all data about a Workflow from the database.
To delete Workflows, use the command:
lpad delete_wflows -i <FW_IDS>
Instead of specifying ids, you can also specify a name (-n), a state (-s), or a custom query (-q). The full command is thus:
lpad delete_wflows [-i FW_ID] [-n NAME] [-s STATE] [-q QUERY]
Refer to the documentation (lpad delete_wflows -h) for more information.