Alejandro García Montoro e7b60bbd10 MM-67291: ES health metric (#35844) ...

* Add search engine health Prometheus metric

Expose mattermost_search_engine_status as a GaugeFunc that
returns 0 when ES/OS is configured but unreachable, and 1
otherwise. This lets SRE build Grafana alerts for the case
where the search backend silently falls back to database
search (as happened on Hub with a misconfigured OpenSearch).

The gauge reads the IsHealthy flag set by the engine watcher,
so it fires on the first health-check failure (~60 s) rather
than waiting for the engine to be fully stopped.

* Test the new search engine status gauge

2026-04-13 21:45:48 +00:00

..

dynamic.go

Source available metrics (#24879)

2024-01-08 10:47:24 -04:00

histogram_test.go

Fix errcheck linter errors in helpers (#31578)

2025-11-12 13:00:51 +01:00

histogram.go

metrics/histogram: Fixing incorrect label_name (#29492)

2024-12-06 19:34:46 +05:30

main_test.go

Source available metrics (#24879)

2024-01-08 10:47:24 -04:00

metrics_test.go

MM-67291: ES health metric (#35844)

2026-04-13 21:45:48 +00:00

metrics.go

MM-67291: ES health metric (#35844)

2026-04-13 21:45:48 +00:00