🐛 Fix: postgres query exporter staying disconnected when postgres is (briefly) offline #1207
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…oundation#979) * Introduce longhorn chart * Further longhorn configuration * Longhorn: further settings configuration * Fix longhorn configuration bugs Extra: introduce longhorn pv vales for portainer * Add comment for deletion longhorn * Further longhorn configuration * Add README.md for Longhorn wit FAQ * Update Longhorn readme * Update readme * Futher LH configuration * Update LH's Readme * Update Longhorn Readme * Improve LH's Readme * LH: Reduce reserved default disk space to 5% Since we use a dedicated disk for LH, we can go ahead with 5% * Use values to set Longhorn storage class * Update LH's Readme * LH Readme: add requirements reference * PR Review: bring back portainer s3 pv * LH: decrease portinaer volume size
mrnicegyu11
added
t:bug
|
tested on osparc.local |
mrnicegyu11
changed the title
YuryHrytsuk
reviewed
Sep 11, 2025
YuryHrytsuk
reviewed
Sep 11, 2025
YuryHrytsuk
approved these changes
Sep 11, 2025
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What do these changes do?
Fixes #1112
If postgres goes offline / is restarted, the postgres query exporter will disconnect and stay disconnected from postgres, logging an error approx. every minute when trying to execute the postgres query. This PR introduces a healthcheck based on listening to the low-level linux TCP socket file of
master_postgres:5432. If postgres is offline, either the DNS name resolve or the TCP connection will fail. The healthcheck will then cause a new postgres query exporter container to be created, hopefully addressing the issue. Note that postgres communicates using raw TCP, and not HTTP(s).Bonus: Updates docker image of the postgres query exporter.
Related issue/s
#1112
Related PR/s
Checklist