{"record":{"id":"3ed0faa9b0db2db3","repo":"hashicorp/nomad","slug":"failed-to-get-destination-last-index-w","errorCode":null,"errorMessage":"failed to get destination last index: %w","messagePattern":"failed to get destination last index: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"helper/raftutil/migrate.go","lineNumber":269,"sourceCode":"\t// Verify log index ranges match.\n\tsrcFirst, err := src.FirstIndex()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"failed to get source first index: %w\", err)\n\t}\n\n\tsrcLast, err := src.LastIndex()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"failed to get source last index: %w\", err)\n\t}\n\n\tdstFirst, err := dst.FirstIndex()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"failed to get destination first index: %w\", err)\n\t}\n\n\tdstLast, err := dst.LastIndex()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"failed to get destination last index: %w\", err)\n\t}\n\n\tif srcFirst != dstFirst {\n\t\treturn fmt.Errorf(\"first index mismatch: source=%d, destination=%d\", srcFirst, dstFirst)\n\t}\n\n\tif srcLast != dstLast {\n\t\treturn fmt.Errorf(\"last index mismatch: source=%d, destination=%d\", srcLast, dstLast)\n\t}\n\n\t// Verify stable store uint64 keys.\n\tuint64Keys := []string{\"CurrentTerm\", \"LastVoteTerm\"}\n\tfor _, key := range uint64Keys {\n\t\tsrcVal, err := src.GetUint64([]byte(key))\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"failed to get source uint64 key %s: %w\", key, err)\n\t\t}\n","sourceCodeStart":251,"sourceCodeEnd":287,"githubUrl":"https://github.com/hashicorp/nomad/blob/482b49bf1aec006f089bcfc7e632d8f6ac303e5e/helper/raftutil/migrate.go#L251-L287","documentation":"Fires in verifyMigration when querying LastIndex on the destination WAL store fails; the copy may have been incomplete, and without the destination range the data cannot be validated.","triggerScenarios":"Thrown at helper/raftutil/migrate.go:269 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Verify disk space did not run out mid-copy","Re-run the migration from the preserved BoltDB source after removing the incomplete WAL directory","Check WAL file integrity and permissions on the destination"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"482b49bf1aec006f089bcfc7e632d8f6ac303e5e","analyzedAt":"2026-09-04T07:54:14.808Z","contentChangedAt":"2026-09-04T07:54:14.808Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}