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Description of problem:
The completed Pulp tasks stay forever and never be purged by Pulp. For a busy Satellite environment, the number of completed tasks can easily reach millions of records.
Large tasks table may cause the following issues:
1. Large core_task table size (more than 10GB)
2. Affecting Pulp performance related to pulp task queries.
For example. we can see the following slow queries of core_task table in the database logs.
~~~
duration: 5173.306 ms statement: SELECT 1 AS "a" FROM "core_task" WHERE ("core_task"."pulp_created" < 'xxxxxxxxxxxxx'::timestamptz AND "core_task"."state" IN ('waiting', 'running', 'canceling') AND "core_task"."reserved_resources_record" && (ARRAY['/pulp/api/v3/domains/xxxxxxxxxxxxxxxxxxxxxxxxxxxx/', '/api/v3/distributions/', 'shared:/api/v3/distributions/'])::text[]) LIMIT 1
duration: 6680.679 ms statement: SELECT 1 AS "a" FROM "core_task" WHERE ("core_task"."pulp_created" < 'xxxxxxxxxxxxx'::timestamptz AND "core_task"."state" IN ('waiting', 'running', 'canceling') AND "core_task"."reserved_resources_record" && (ARRAY['/pulp/api/v3/domains/xxxxxxxxxxxxxxxxxxxxxxxxxxxx/', '/api/v3/distributions/', 'shared:/api/v3/distributions/'])::text[]) LIMIT 1
~~~
Additional info:
The workaround to use pulp command to purge the tasks.
E.g. the below command will purge the completed tasks older than 2 weeks.
~~~
pulp --force task purge --finished-before $(date --date="$(date) -2 week" +%Y-%m-%d) --state completed --state failed --state canceled
~~~
Pulp already provides an API for purging tasks, but like orphan cleanup, calling it occasionally is up to the admin rather than something Pulp triggers automatically.
I'm not sure what the correct component is for this though.
Based on https://github.com/pulp/pulpcore/pull/5379/files, we now need to set the TASK_PROTECTION_TIME setting to enable automated task cleanup in Pulp.
I'm changing the component to "Installation".
It's noted that the issue is fixed in Pulpcore 3.54, so we'll either need to request a backport to Pulpcore 3.49 or wait another release to pick it up.
If needed in the short term, Katello could call the task purge API during orphan cleanup, but then the work to automate it in Pulpcore wouldn't be taken advantage of.
Moving back to NEW since the component has now changed to Installer.
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Description of problem: The completed Pulp tasks stay forever and never be purged by Pulp. For a busy Satellite environment, the number of completed tasks can easily reach millions of records. Large tasks table may cause the following issues: 1. Large core_task table size (more than 10GB) 2. Affecting Pulp performance related to pulp task queries. For example. we can see the following slow queries of core_task table in the database logs. ~~~ duration: 5173.306 ms statement: SELECT 1 AS "a" FROM "core_task" WHERE ("core_task"."pulp_created" < 'xxxxxxxxxxxxx'::timestamptz AND "core_task"."state" IN ('waiting', 'running', 'canceling') AND "core_task"."reserved_resources_record" && (ARRAY['/pulp/api/v3/domains/xxxxxxxxxxxxxxxxxxxxxxxxxxxx/', '/api/v3/distributions/', 'shared:/api/v3/distributions/'])::text[]) LIMIT 1 duration: 6680.679 ms statement: SELECT 1 AS "a" FROM "core_task" WHERE ("core_task"."pulp_created" < 'xxxxxxxxxxxxx'::timestamptz AND "core_task"."state" IN ('waiting', 'running', 'canceling') AND "core_task"."reserved_resources_record" && (ARRAY['/pulp/api/v3/domains/xxxxxxxxxxxxxxxxxxxxxxxxxxxx/', '/api/v3/distributions/', 'shared:/api/v3/distributions/'])::text[]) LIMIT 1 ~~~ Additional info: The workaround to use pulp command to purge the tasks. E.g. the below command will purge the completed tasks older than 2 weeks. ~~~ pulp --force task purge --finished-before $(date --date="$(date) -2 week" +%Y-%m-%d) --state completed --state failed --state canceled ~~~