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Werk #22480: elasticsearch: indices without primaries

Component Checks & agents
Title elasticsearch: indices without primaries
Date Sep 23, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p15
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p38
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If Elasticsearch reported no primary shard statistics for a single index, for example while the primary shard of that index was unassigned, all Elasticsearch index services of the host crashed with ValidationError: 1 validation error for _IndexResponse.

All other indices are now monitored as usual. The index without primary shard statistics is left out of the monitoring data for as long as Elasticsearch does not report them: its own service reports that the item is not found, and a group containing it counts only its remaining members.

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