[GitHub] [kafka] guozhangwang commented on a diff in pull request #12363: HOTFIX: Correct ordering of input buffer and enforced processing sensors

[GitBox <gi...@apache.org>]

guozhangwang commented on code in PR #12363:
URL: https://github.com/apache/kafka/pull/12363#discussion_r910380094


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streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamThread.java:
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@@ -797,8 +798,10 @@ void runOnce() {
                     totalProcessed += processed;
                     totalRecordsProcessedSinceLastSummary += processed;
                     final long bufferSize = taskManager.getInputBufferSizeInBytes();
-                    if (bufferSize <= maxBufferSizeBytes.get()) {
-                        mainConsumer.resume(mainConsumer.paused());
+                    if (bufferSize <= maxBufferSizeBytes.get() && !pausedPartitions.isEmpty()) {
+                        log.info("Buffered records size {} bytes falls below {}. Resuming all the paused partitions {} in the consumer",
+                            bufferSize, maxBufferSizeBytes.get(), pausedPartitions);
+                        mainConsumer.resume(pausedPartitions);

Review Comment:
   Ah yes!



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