3schwartz commented on a change in pull request #11340:
URL: https://github.com/apache/kafka/pull/11340#discussion_r713359407
##########
File path:
clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java
##########
@@ -1069,6 +1065,37 @@ private void maybeAutoCommitOffsetsSync(Timer timer) {
}
}
+ private void cleanUpConsumedOffsets(Map<TopicPartition, OffsetAndMetadata>
willCommitOffsets) {
+
+ if (willCommitOffsets.isEmpty())
+ return;
+
+ Set<String> validTopics = metadata.fetch().topics();
+ Set<TopicPartition> toGiveUpTopicPartitions = new HashSet<>();
+
+ Iterator<Map.Entry<TopicPartition, OffsetAndMetadata>> iterator =
willCommitOffsets.entrySet().iterator();
+
+ while (iterator.hasNext()) {
+
+ Map.Entry<TopicPartition, OffsetAndMetadata> entry =
iterator.next();
+
+ if (!validTopics.contains(entry.getKey().topic())) {
+
+ toGiveUpTopicPartitions.add(entry.getKey());
+ iterator.remove();
+ }
+
+ }
+
+ if (toGiveUpTopicPartitions.size() > 0) {
+
+ //Because toGiveUpTopicPartitions may receive
`UnknownTopicOrPartitionException` when submitting their offsets.
+ //We are prepared to abandon them. The worst effect is that these
partitions may repeatedly consume some messages
+ log.warn("Synchronous auto-commit of offsets {} will be
abandoned", toGiveUpTopicPartitions);
Review comment:
I believe the messages is in correct - it is the whole partitions for
which any offsets are not committed.
`log.warn("Synchronous auto-commit of offsets for partitions {} will be
abandoned", toGiveUpTopicPartitions);`
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