stevenzwu commented on code in PR #13714:
URL: https://github.com/apache/iceberg/pull/13714#discussion_r2353940634
##########
flink/v2.1/flink/src/main/java/org/apache/iceberg/flink/sink/IcebergWriteAggregator.java:
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@@ -76,11 +85,21 @@ public void open() throws Exception {
@Override
public void finish() throws IOException {
- prepareSnapshotPreBarrier(Long.MAX_VALUE);
+ prepareSnapshotPreBarrier(lastCheckpointId + 1);
}
@Override
public void prepareSnapshotPreBarrier(long checkpointId) throws IOException {
+ if (checkpointId == lastCheckpointId) {
Review Comment:
if users have picked up the Flink change in versions like 1.19, 1.20, 2.0,
we can have silent data loss (incorrectly skipped committables) for the batch
execution mode or streaming execution with checkpoint disabled.
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