pvary commented on code in PR #14810:
URL: https://github.com/apache/iceberg/pull/14810#discussion_r2618592470
##########
flink/v2.0/flink/src/main/java/org/apache/iceberg/flink/sink/dynamic/DynamicCommitter.java:
##########
@@ -126,9 +125,14 @@ public void
commit(Collection<CommitRequest<DynamicCommittable>> commitRequests)
return;
}
- // For every table and every checkpoint, we store the list of
to-be-committed
- // DynamicCommittable.
- // There may be DynamicCommittable from previous checkpoints which have
not been committed yet.
+ /*
+ Each (table, branch, checkpoint) triplet must have only one commit
request.
+ There may be commit requests from previous checkpoints which have not
been committed yet.
+
+ We currently keep a List of commit requests per checkpoint instead of a
single CommitRequest<DynamicCommittable>
+ to process the Flink state from previous releases, which had multiple
commit requests due to a bug in the upstream
+ DynamicWriteResultAggregator. We should replace this with a single
commit request in the next major release.
Review Comment:
I agree, that we can discuss the removal separately. The comment contained
the timeline, that is why I asked your thoughts here
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