mjsax commented on code in PR #20693:
URL: https://github.com/apache/kafka/pull/20693#discussion_r2453330075
##########
streams/src/main/java/org/apache/kafka/streams/processor/internals/PartitionGroup.java:
##########
@@ -255,24 +257,32 @@ record = queue.poll(wallClockTime);
if (record != null) {
totalBuffered -= oldSize - queue.size();
+ logger.trace("Partition {} polling next record:, oldSize={},
newSize={}, totalBuffered={}, recordTimestamp={}",
+ queue.partition(), oldSize, queue.size(), totalBuffered,
record.timestamp);
if (queue.isEmpty()) {
// if a certain queue has been drained, reset the flag
allBuffered = false;
+ logger.trace("Partition {} queue is now empty,
allBuffered=false", queue.partition());
} else {
nonEmptyQueuesByTime.offer(queue);
}
// always update the stream-time to the record's timestamp yet
to be processed if it is larger
if (record.timestamp > streamTime) {
+ final long oldStreamTime = streamTime;
streamTime = record.timestamp;
recordLatenessSensor.record(0, wallClockTime);
+ logger.trace("Partition {} stream time updated from {} to
{}", queue.partition(), oldStreamTime, streamTime);
} else {
- recordLatenessSensor.record(streamTime - record.timestamp,
wallClockTime);
+ final long lateness = streamTime - record.timestamp;
+ recordLatenessSensor.record(lateness, wallClockTime);
}
}
+ } else {
+ logger.trace("Partition pulling nextRecord: no queue available");
}
-
+
Review Comment:
```suggestion
```
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