ELLOW elasticsearch cluster_error ai_generated true

cluster health status changed from [YELLOW] to [RED]

ID: elasticsearch/cluster-health-red

Also available as: JSON · Markdown
78%Fix Rate
85%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8 active — — —

Root Cause

Primary shards unassigned. Data loss risk.

generic

Workarounds

  1. 88% success Check _cluster/allocation/explain
  2. 85% success Fix root cause (disk/node) then let ES recover

Dead Ends

Common approaches that don't work:

  1. Force allocate unassigned shards blindly 85% fail

    Assigns shards with stale data causing corruption

  2. Restart all nodes simultaneously 90% fail

    Split-brain and data loss in multi-node