fix: use nullpool in the celery workers #10819
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Was this confirmed to fix the error? There have been similar errors reported for email alerts, so pretty awesome if this solves these problems completely. |
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@villebro still iterating on it, will post an update once confirmed |
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@@ Coverage Diff @@
## master #10819 +/- ##
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- Coverage 65.40% 61.35% -4.05%
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Files 802 804 +2
Lines 37872 37936 +64
Branches 3561 3561
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- Hits 24770 23277 -1493
- Misses 12996 14473 +1477
- Partials 106 186 +80
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@villebro I've confirmed that this fix is working for us, I've ran alerts and reports over night with high frequency & the issue has stopped happening |
bkyryliuk
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superset/cli.py
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| with session_scope(nullpool=True) as session: | ||
| schedule_window( | ||
| ScheduleType.alert, | ||
| datetime.now() - timedelta(1000), | ||
| datetime.now(), | ||
| 6000, | ||
| session, | ||
| ) |
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Not yours, but I usually like using named arguments in cases like this to make stuff more readable. 6000 what?
| from superset.models.alerts import Alert, SQLObservation | ||
| from superset.sql_parse import ParsedQuery | ||
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| logger = logging.getLogger("tasks.email_reports") | ||
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| def observe(alert_id: int) -> Optional[str]: | ||
| def observe(alert_id: int, session: Session) -> Optional[str]: |
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I think the idea was to mostly remove references to sessions in sigs (there's lots of them scattered around), as they can usually just be picked up from db, so it might be a good idea to add a comment here that this really needs to be passed along here.
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good point, added comments and issue reference
* Use nullpool in the celery workers * Address comments Co-authored-by: bogdan kyryliuk <bogdankyryliuk@dropbox.com>
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SUMMARY
Changes celery db requests from superset.db to the scoped_session that uses null pool to avoid using same db sessions across multiple celery workers.
More context on the problem can be found in the linked issue.
Fixes #10530
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