{"record":{"id":"099f78513d59c410","repo":"apache/iceberg","slug":"failed-to-commit-updates-to-table","errorCode":null,"errorMessage":"Failed to commit updates to table {}","messagePattern":"Failed to commit updates to table (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"bigquery/src/main/java/org/apache/iceberg/gcp/bigquery/BigQueryTableOperations.java","lineNumber":117,"sourceCode":"      throw e;\n    } catch (Throwable e) {\n      LOG.error(\"Exception thrown on commit: \", e);\n      if (e instanceof AlreadyExistsException) {\n        throw e;\n      }\n      commitStatus =\n          BaseMetastoreOperations.CommitStatus.valueOf(\n              checkCommitStatus(newMetadataLocation, metadata).name());\n      if (commitStatus == BaseMetastoreOperations.CommitStatus.FAILURE) {\n        throw new CommitFailedException(e, \"Failed to commit\");\n      }\n      if (commitStatus == BaseMetastoreOperations.CommitStatus.UNKNOWN) {\n        throw new CommitStateUnknownException(e);\n      }\n    } finally {\n      try {\n        if (commitStatus == BaseMetastoreOperations.CommitStatus.FAILURE) {\n          LOG.warn(\"Failed to commit updates to table {}\", tableName());\n          io().deleteFile(newMetadataLocation);\n        }\n      } catch (RuntimeException e) {\n        LOG.error(\n            \"Failed to cleanup metadata file at {} for table {}\",\n            newMetadataLocation,\n            tableName(),\n            e);\n      }\n    }\n  }\n\n  @Override\n  public String tableName() {\n    return String.format(\"%s.%s\", tableReference.getDatasetId(), tableReference.getTableId());\n  }\n\n  @Override","sourceCodeStart":99,"sourceCodeEnd":135,"githubUrl":"https://github.com/apache/iceberg/blob/86d9c8fc543e7c56c9f624eb725f76c9baff9570/bigquery/src/main/java/org/apache/iceberg/gcp/bigquery/BigQueryTableOperations.java#L99-L135","documentation":"BigQueryTableOperations.doCommit() commits table metadata to BigQuery metastore. If the commit status resolves to FAILURE, cleanup deletes the just-written metadata file and logs this WARN naming the table. If the status is UNKNOWN, a CommitStateUnknownException is thrown instead. A subsequent ERROR is logged if the cleanup itself fails.","triggerScenarios":"A commit to BigQuery fails definitively (e.g. the metadata table row was concurrently updated, permission denied, or BigQuery API error) so the new metadata location file must be rolled back.","commonSituations":"Concurrent writers causing optimistic-concurrency conflicts; BigQuery IAM changes removing write access; transient BigQuery API outages during commits.","solutions":["Check the preceding exception in logs for the root commit cause (permissions, conflict, quota)","Retry the commit after resolving conflicts — re-read current metadata and reapply","Verify the BigQuery identity has permissions on the metadata tables/dataset","If commit state is unknown, query the table's current metadata location before retrying to avoid divergence"],"exampleFix":null,"handlingStrategy":"retry","validationCode":"// before committing, confirm identity permissions and current metadata location\nTableMetadata current = ops.current();\n// verify BigQuery dataset/table exists and writer IAM role is intact\n","typeGuard":null,"tryCatchPattern":"try {\n  ops.commit(base, metadata);\n} catch (CommitStateUnknownException e) {\n  // refresh table and check whether the commit actually landed before retrying\n  ops.refresh();\n  if (!metadataFileApplied(ops.current(), metadata)) { /* safe retry */ }\n}","preventionTips":["Give the BigQuery identity write access to the metadata tables/dataset","Handle CommitStateUnknownException by inspecting current state, not blind retries","Keep metadata file cleanup (deleteFile) path monitored — the WARN may be followed by an ERROR if rollback fails"],"tags":["gcp","bigquery","commit","metadata"],"backgroundTag":"database-write-failed","analyzedSha":"86d9c8fc543e7c56c9f624eb725f76c9baff9570","analyzedAt":"2026-09-12T00:46:39.097Z","contentChangedAt":"2026-09-12T00:46:39.097Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}