gyfora commented on code in PR #10526:
URL: https://github.com/apache/iceberg/pull/10526#discussion_r1715155476
##########
flink/v1.19/flink/src/main/java/org/apache/iceberg/flink/sink/IcebergFilesCommitter.java:
##########
@@ -426,30 +425,44 @@ private void commitOperation(
}
@Override
- public void processElement(StreamRecord<WriteResult> element) {
- this.writeResultsOfCurrentCkpt.add(element.getValue());
+ public void processElement(StreamRecord<FlinkWriteResult> element) {
+ FlinkWriteResult flinkWriteResult = element.getValue();
+ List<WriteResult> writeResults =
+ writeResultsSinceLastSnapshot.computeIfAbsent(
+ flinkWriteResult.checkpointId(), k -> Lists.newArrayList());
+ writeResults.add(flinkWriteResult.writeResult());
}
@Override
public void endInput() throws IOException {
// Flush the buffered data files into 'dataFilesPerCheckpoint' firstly.
- long currentCheckpointId = Long.MAX_VALUE;
- dataFilesPerCheckpoint.put(currentCheckpointId,
writeToManifest(currentCheckpointId));
- writeResultsOfCurrentCkpt.clear();
-
+ long currentCheckpointId = IcebergStreamWriter.END_INPUT_CHECKPOINT_ID;
+ writeToManifestSinceLastSnapshot(currentCheckpointId);
commitUpToCheckpoint(dataFilesPerCheckpoint, flinkJobId, operatorUniqueId,
currentCheckpointId);
}
+ private void writeToManifestSinceLastSnapshot(long checkpointId) throws
IOException {
+ if (!writeResultsSinceLastSnapshot.containsKey(checkpointId)) {
+ dataFilesPerCheckpoint.put(checkpointId, EMPTY_MANIFEST_DATA);
+ }
+
+ for (Map.Entry<Long, List<WriteResult>> writeResultsOfCkpt :
Review Comment:
@pvary @stevenzwu @zhongqishang The checkpointing algorithm guarantees that
when snapshot method is called on an operator that operator cannot see any
data/records from later checkpoints. This applies for both aligned/unaligned
checkpoints.
So the committer never receives files from CHK 2 before
snapshotting/committing CHK 1 (regardless of aligned/unaligned case)
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
