{"record":{"id":"88cd63e80c2069e6","repo":"hyperledger/fabric","slug":"invalid-input-json-each-record-entry-must-contain","errorCode":null,"errorMessage":"invalid input json. Each record entry must contain both a \"namespace\" and a \"key\" field. Aborting identifytxs","messagePattern":"invalid input json\\. Each record entry must contain both a \"namespace\" and a \"key\" field\\. Aborting identifytxs","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/ledgerutil/identifytxs/identifytxs.go","lineNumber":182,"sourceCode":"\ntype compKeyMapWrapper struct {\n\tcompKeyMap  compKeyMap\n\tmaxBlockNum uint64\n\tmaxTxNum    uint64\n}\n\n// Generates an efficient data structure for checking records during block store traversal\n// and for storing output file writers\n// Returns generated compKeyMap and highest record height in a compKeyMapWrapper\nfunc generateRecordsMap(records []*models.DiffRecord, outputDirPath string) (ckmw *compKeyMapWrapper, err error) {\n\t// Reorganize records as hashmap for faster lookups\n\tinputKeyMap := make(compKeyMap)\n\tmaxBlock := uint64(0)\n\tmaxTx := uint64(0)\n\tfor i, r := range records {\n\t\t// Confirm all records have at least namespace and key\n\t\tif r.Namespace == \"\" || r.Key == \"\" {\n\t\t\treturn nil, errors.Errorf(\"invalid input json. Each record entry must contain both \" +\n\t\t\t\t\"a \\\"namespace\\\" and a \\\"key\\\" field. Aborting identifytxs\")\n\t\t}\n\t\t// Check for hashed data\n\t\tvar ns, coll string\n\t\tif r.Hashed {\n\t\t\tns, coll, err = decodeHashedNs(r.Namespace)\n\t\t\tif err != nil {\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t} else {\n\t\t\tns = r.Namespace\n\t\t}\n\t\t// Record to compKey\n\t\tck := compKey{namespace: ns, collection: coll, key: r.Key}\n\t\t// Check for duplicate entry\n\t\t_, exists := inputKeyMap[ck]\n\t\tif exists {\n\t\t\treturn nil, errors.Errorf(\"invalid input json. Contains duplicate record for \"+","sourceCodeStart":164,"sourceCodeEnd":200,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/internal/ledgerutil/identifytxs/identifytxs.go#L164-L200","documentation":"generateRecordsMap builds an internal key map from the diff records and requires every entry to carry both a namespace and a key. Any record missing either field makes the record set unusable, so it returns this error and IdentifyTxs aborts.","triggerScenarios":"Running ledgerutil identifytxs with a JSON diff record list where at least one entry has an empty or missing \"namespace\" or \"key\" field.","commonSituations":"Hand-crafted or tool-modified JSON with a malformed entry; truncated file; schema drift after using output from an older ledgerutil version as input elsewhere.","solutions":["Inspect the JSON (entry index i reported by iteration order) and add/fill the missing namespace or key field on the offending record","Regenerate the record list with ledgerutil compare instead of hand-editing","Validate the JSON against the DiffRecordList schema (namespace, key, hashed, records) before running"],"exampleFix":"// before\n{ \"namespace\": \"\", \"key\": \"key1\", \"hashed\": false }\n// after\n{ \"namespace\": \"lscc\", \"key\": \"mycc\", \"hashed\": false }","handlingStrategy":"validation","validationCode":"// Go: validate each record has namespace and key before calling IdentifyTxs\nfor i, r := range records.DiffRecords {\n    if r.Namespace == \"\" || r.Key == \"\" {\n        return fmt.Errorf(\"record %d missing namespace or key\", i)\n    }\n}","typeGuard":"func validRecord(r models.DiffRecord) bool { return r.Namespace != \"\" && r.Key != \"\" }","tryCatchPattern":"if _, _, err := ledgerutil.IdentifyTxs(recPath, outDir); err != nil {\n    if strings.Contains(err.Error(), \"invalid input json\") {\n        return fmt.Errorf(\"fix the record entries in the diff JSON: %w\", err)\n    }\n    return err\n}","preventionTips":["Schema-validate the diff JSON before running offline tools","Avoid hand-editing compare output; regenerate it instead","Keep records in the original DiffRecordList format"],"tags":["hyperledger-fabric","ledgerutil","json-input","schema-validation"],"backgroundTag":"invalid-json-record","analyzedSha":"2736b63f8fd5932511d56fe68b7039d15977f7f6","analyzedAt":"2026-09-04T08:52:36.465Z","contentChangedAt":"2026-09-04T08:52:36.465Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}