{"record":{"id":"1a7bd17037f6cb18","repo":"t8y2/dbx","slug":"service-w-1a7bd1","errorCode":null,"errorMessage":"service: %w","messagePattern":"service: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"agents/drivers/hive-go/config.go","lineNumber":793,"sourceCode":"\t\treturn nil, nil, decodeErr\n\t}\n\treader := strings.NewReader(string(decoded))\n\tidentifier, err := readHadoopByteArray(reader)\n\tif err != nil {\n\t\treturn nil, nil, fmt.Errorf(\"identifier: %w\", err)\n\t}\n\tpassword, err := readHadoopByteArray(reader)\n\tif err != nil {\n\t\treturn nil, nil, fmt.Errorf(\"password: %w\", err)\n\t}\n\tif len(identifier) == 0 || len(password) == 0 {\n\t\treturn nil, nil, errors.New(\"token identifier and password must be non-empty\")\n\t}\n\tif _, err := readHadoopByteArray(reader); err != nil {\n\t\treturn nil, nil, fmt.Errorf(\"kind: %w\", err)\n\t}\n\tif _, err := readHadoopByteArray(reader); err != nil {\n\t\treturn nil, nil, fmt.Errorf(\"service: %w\", err)\n\t}\n\tif reader.Len() != 0 {\n\t\treturn nil, nil, errors.New(\"token contains trailing data\")\n\t}\n\treturn identifier, password, nil\n}\n\nfunc readHadoopByteArray(reader io.ByteReader) ([]byte, error) {\n\tlength, err := readHadoopVInt(reader)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\tif length < 0 {\n\t\treturn nil, fmt.Errorf(\"negative length %d\", length)\n\t}\n\tif length > 64*1024*1024 {\n\t\treturn nil, fmt.Errorf(\"length %d exceeds limit\", length)\n\t}","sourceCodeStart":775,"sourceCodeEnd":811,"githubUrl":"https://github.com/t8y2/dbx/blob/c0390bff16418b651f4728520d99adf8ce48829a/agents/drivers/hive-go/config.go#L775-L811","documentation":"This error means the service field of the Hadoop delegation token could not be read as the fourth length-prefixed field. This is the final required field; a failure here indicates a truncated or structurally invalid token even though identifier, password, and kind parsed.","triggerScenarios":"A delegation token payload ending after the kind field, or a corrupt VInt length prefix at the service field position.","commonSituations":"Truncated tokens from copy/paste; tokens serialized by a different Hadoop RPC version; corrupted secrets in transit.","solutions":["Re-acquire the token from the Hive server and pass it unmodified","Ensure no transport layer (logs, YAML, base64 re-wrapping) altered the token bytes","Test the token with decodeHadoopDelegationToken-equivalent parsing before deployment"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"if err != nil && strings.Contains(err.Error(), \"service:\") {\n\treturn fmt.Errorf(\"token payload incomplete: %w\", err)\n}","preventionTips":["Re-fetch tokens rather than caching copies that may be truncated","Avoid transforming tokens (re-encoding, wrapping) in transit","Preflight-decode tokens in CI before rollout"],"tags":["hive","delegation-token","serialization"],"backgroundTag":"delegation-token-decode-failed","analyzedSha":"c0390bff16418b651f4728520d99adf8ce48829a","analyzedAt":"2026-09-05T23:05:10.900Z","contentChangedAt":"2026-09-05T23:05:10.900Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}