1996fanrui commented on code in PR #19723:
URL: https://github.com/apache/flink/pull/19723#discussion_r880013345
##########
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/PipelinedSubpartition.java:
##########
@@ -240,9 +260,158 @@ private boolean processPriorityBuffer(BufferConsumer
bufferConsumer, int partial
inflightBuffers.toArray(new Buffer[0]));
}
}
- return numPriorityElements == 1
- && !isBlocked; // if subpartition is blocked then downstream
doesn't expect any
- // notifications
+ return needNotifyPriorityEvent();
+ }
+
+ // It just be called after add priorityEvent.
+ private boolean needNotifyPriorityEvent() {
+ assert Thread.holdsLock(buffers);
+ // if subpartition is blocked then downstream doesn't expect any
notifications
+ return buffers.getNumPriorityElements() == 1 && !isBlocked;
+ }
+
+ private void processTimeoutableCheckpointBarrier(BufferConsumer
bufferConsumer) {
+ CheckpointBarrier barrier =
parseAndCheckTimeoutableCheckpointBarrier(bufferConsumer);
+ channelStateWriter.addOutputDataFuture(
+ barrier.getId(),
+ subpartitionInfo,
+ ChannelStateWriter.SEQUENCE_NUMBER_UNKNOWN,
+ createChannelStateFuture(barrier.getId()));
+ }
+
+ private void completeTimeoutableCheckpointBarrier(BufferConsumer
bufferConsumer) {
+ CheckpointBarrier barrier =
parseAndCheckTimeoutableCheckpointBarrier(bufferConsumer);
+ if (channelStateFutureIsAvailable(barrier.getId())) {
+ completeChannelStateFuture(Collections.emptyList(), null);
+ }
+ }
Review Comment:
Actually, it may also be false here.
You mentioned in a [previous
comment](https://github.com/apache/flink/pull/19723#discussion_r875800201). It
happens when a checkpoint that has been aborted previously.
BTW, for these 2 comments, I'll add a brief description to the code
explaining why we can't checkState, to prevent it from being corrected later.
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