https://bugzilla.wikimedia.org/show_bug.cgi?id=68534
Bug ID: 68534
Summary: QueuePool pool_size limit should be configurable
Product: Analytics
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Wikimetrics
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected]
Web browser: ---
Mobile Platform: ---
Error message that led to discovery of the problem:
Problem creating child report: QueuePool limit of size 5 overflow 10 reached,
connection timed out, timeout 30
Two problems were found:
* Celery concurrency configuration was broken:
https://github.com/wikimedia/operations-puppet-wikimetrics/blob/master/manifests/init.pp#L87
* SQLAlchemy default connection pool configuration was being used, which has a
pool of 5 connections. This is much lower than we need
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