[cdc] Fix NPE when metadata columns are used with debezium-bson format - #9055
Merged
JingsongLi merged 1 commit intoAug 7, 2026
Merged
Conversation
DebeziumBsonRecordParser#setRoot did not store the current record, so AbstractRecordParser#evalMetadataColumns passed null to the metadata converters and threw NPE on the first record whenever --metadata_column was used. The sibling parsers already store it (apache#7315). Generated-by: Claude Code
Contributor
|
+1 |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Purpose
fix #9054
DebeziumBsonRecordParser#setRootoverridesAbstractRecordParser#setRootwithout storing the record, soevalMetadataColumnspasses a nullcurrentRecordto the converters. Using--metadata_columnwithvalue.format=debezium-bsonthrows NPE on the first record.currentRecorddirectly instead of callingsuper.setRoot:DebeziumJsonRecordParser#setRootalso parses the Debezium value schema, which BSON events do not carry.Tests
DebeziumBsonRecordParserTest#extractRecordWithMetadataColumns, asserting thetopicandoffsetvalues and schema columns. It fails with NPE before the fix.mvn -pl paimon-flink/paimon-flink-cdc -Pflink1 -Dtest='!*ITCase' clean install(JDK 11): 148 tests passed in each of the two surefire executions.*ITCaseneed Docker and were not run locally — covered by CI.