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Optimize OpenShift healthchecks #120

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opened 2026-06-03 12:27:09 +00:00 by jgroman · 1 comment
jgroman commented 2026-06-03 12:27:09 +00:00
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OpenShift checks pod service health using Readiness and Liveness probes which both independently hit app main page at 5 sec period resulting in main page refreshes every 2.5 sec or so. This causes unnecessary main page traffic, causes CPU load, spams debug logs and may have negative impact on app response delay.
We should review healtcheck period lengths and make those longer and also create a special endpoint dedicated for those health checks which would just do a simple and fast db query (like retrieving db version) thus reducing server and db load.

See also quality/blockerbugs#297

OpenShift checks pod service health using Readiness and Liveness probes which both independently hit app main page at 5 sec period resulting in main page refreshes every 2.5 sec or so. This causes unnecessary main page traffic, causes CPU load, spams debug logs and may have negative impact on app response delay. We should review healtcheck period lengths and make those longer and also create a special endpoint dedicated for those health checks which would just do a simple and fast db query (like retrieving db version) thus reducing server and db load. See also https://forge.fedoraproject.org/quality/blockerbugs/issues/297
jgroman added this to the Sprint 13 project 2026-07-31 11:15:41 +00:00
jgroman self-assigned this 2026-07-31 11:15:43 +00:00
adamwill commented 2026-08-11 15:42:06 +00:00
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Both PRs merged, this is done.

Both PRs merged, this is done.
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Depends on
#137 Create health check endpoint
quality/testdays-web
#3555 quality: testdays app - update health check probes
infra/ansible
Reference
quality/testdays-web#120
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