machi1990 commented on code in PR #13665:
URL: https://github.com/apache/kafka/pull/13665#discussion_r1198690005
##########
clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java:
##########
@@ -1007,16 +1047,33 @@ public Map<TopicPartition, OffsetAndMetadata>
fetchCommittedOffsets(final Set<To
if (pendingCommittedOffsetRequest != null) {
future = pendingCommittedOffsetRequest.response;
} else {
- future = sendOffsetFetchRequest(partitions);
- pendingCommittedOffsetRequest = new
PendingCommittedOffsetRequest(partitions, generationForOffsetRequest, future);
+ future = sendOffsetFetchRequest(nonCachedPartitions);
+ pendingCommittedOffsetRequest = new
PendingCommittedOffsetRequest(nonCachedPartitions, generationForOffsetRequest,
future);
}
client.poll(future, timer);
if (future.isDone()) {
pendingCommittedOffsetRequest = null;
if (future.succeeded()) {
- return future.value();
+ Map<TopicPartition, OffsetAndMetadata> freshOffsets =
future.value();
+
+ // update cache for assigned partitions that are not
cached yet
+ for (TopicPartition nonCachedAssignedPartition:
nonCachedAssignedPartitions) {
+ if
(!this.subscriptions.isAssigned(nonCachedAssignedPartition)) {
+ // it is possible that the topic is no longer
assigned when the response is received,
+ // in this case we do not update the cache with
the fresh value
+ continue;
+ }
+
+ OffsetAndMetadata offset =
freshOffsets.get(nonCachedAssignedPartition);
+ if (offset != null) { // it is possible that the
offset and metadata were not fetched
+
this.partitionOffsetsCache.put(nonCachedAssignedPartition, offset);
Review Comment:
Hi @showuon I forgot to mention or call your attention on this line
https://github.com/apache/kafka/blob/401fb417bf60864e6d380f979d268d895c5ad727/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L1422
which already updates the cache. Is that what you've in mind?
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