Introduce system.background_schedule_pool{,_log} to improve introspection of background jobs#91157
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azat merged 7 commits intoClickHouse:masterfrom Dec 1, 2025
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Workflow [PR], commit [7ce9cc4b] Summary: ❌
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…tion of background jobs
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- Add missing event_date/event_time filters - Per table tasks - Tasks view - Per-task logs - Show number of tasks per table Refs: ClickHouse/ClickHouse#91157
The job is removed from the pool when executed, so we need retries
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It will never pass, it tries to run all tests, requires at least #91194 |
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Changelog entry (a user-readable short description of the changes that goes into CHANGELOG.md):
Introduce
system.background_schedule_pool{,_log}to improve introspection of background jobs.Various tables (and not only tables) can run periodic background tasks (that will be reflected no in
system.background_schedule_pool{,_log}) which previously lack of the introspection tools except forsystem.text_log. Now they all will be available insystem.background_schedule_pooland you can see how much time does it takes now. And alsosystem.background_schedule_pool_logadded, that includes all executed tasks with some meta information (duration, exceptions).And I've seen cases when this tasks can work incorrectly, i.e. taking too much time, and it was hard to debug before. This PR should improve this.