elasticsearch snapshot_error ai_generated true

SnapshotRestoreException: [repo:snapshot/xxxxx] cannot restore index [my_index] because an open index with same name already exists in the cluster

ID: elasticsearch/snapshot-restore-failed

Also available as: JSON · Markdown
85%Fix Rate
88%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8 active — — —

Root Cause

Snapshot restore failed. Index name conflicts, incompatible versions, or repository access issues.

generic

Workarounds

  1. 92% success Restore to a different index name using rename_pattern 
    POST _snapshot/repo/snap/_restore { 'rename_pattern': 'my_index', 'rename_replacement': 'restored_my_index' }

    Sources: https://www.elastic.co/guide/en/elasticsearch/reference/current/

  2. 85% success Close the existing index before restoring (if acceptable) 
    POST /my_index/_close  # then restore; the closed index will be replaced
  3. 80% success Verify snapshot integrity before restore 
    GET _snapshot/repo/snap/_status  # check state=SUCCESS; also verify repository is accessible

Dead Ends

Common approaches that don't work:

  1. Delete the existing index to make room for restore 82% fail

    Deleting the live index before restore is confirmed causes data loss if restore also fails. Rename instead.

  2. Restore from a different snapshot repository format 75% fail

    Repositories are format-specific. An S3 snapshot cannot be restored from a local fs repo path and vice versa.