mongodb operation_error ai_generated true

IndexBuildFailed: index build failed

ID: mongodb/index-build-failed

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80%Fix Rate
84%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Index creation failed due to duplicate values, disk space, or invalid spec.

generic

Workarounds

  1. 88% success Check for duplicate values if unique index, build on secondary first
  2. 85% success Use background index build and ensure sufficient disk space

Dead Ends

Common approaches that don't work:

  1. Force kill mongod during index build 90% fail

    Leaves index in inconsistent state

  2. Build index on primary during peak hours 78% fail

    Blocks replication and queries