pnowojski commented on a change in pull request #13741:
URL: https://github.com/apache/flink/pull/13741#discussion_r512854774
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java
##########
@@ -437,19 +440,20 @@ public void onBuffer(Buffer buffer, int sequenceNumber,
int backlog) throws IOEx
wasEmpty = receivedBuffers.isEmpty();
- if (buffer.getDataType().hasPriority()) {
- receivedBuffers.addPriorityElement(new
SequenceBuffer(buffer, sequenceNumber));
- if
(channelStatePersister.checkForBarrier(buffer)) {
- // checkpoint was not yet
started by task thread,
- // so remember the numbers of
buffers to spill for the time when it will be started
- numBuffersOvertaken =
receivedBuffers.getNumUnprioritizedElements();
- }
- firstPriorityEvent =
receivedBuffers.getNumPriorityElements() == 1;
+ SequenceBuffer sequenceBuffer = new
SequenceBuffer(buffer, sequenceNumber);
+ DataType dataType = buffer.getDataType();
+ if (dataType.hasPriority()) {
+ checkPriorityXorAnnouncement(buffer);
+ firstPriorityEvent =
addPriorityBuffer(sequenceBuffer);
} else {
- receivedBuffers.add(new
SequenceBuffer(buffer, sequenceNumber));
+ receivedBuffers.add(sequenceBuffer);
channelStatePersister.maybePersist(buffer);
- }
+ if (dataType.requiresAnnouncement()) {
+
checkPriorityXorAnnouncement(buffer);
+ firstPriorityEvent =
addPriorityBuffer(announce(sequenceBuffer));
+ }
Review comment:
This is incorrect, it would have to be:
```
if (dataType.requiresAnnouncement()) {
firstPriorityEvent =
addPriorityBuffer(announce(sequenceBuffer));
}
if (dataType.hasPriority()) {
firstPriorityEvent =
addPriorityBuffer(sequenceBuffer);
}
else {
receivedBuffers.add(sequenceBuffer);
channelStatePersister.maybePersist(buffer);
}
```
but that would suggest priority event can be announced, hence I moved
```
if (dataType.requiresAnnouncement()) {
firstPriorityEvent =
addPriorityBuffer(announce(sequenceBuffer));
}
```
into the non priority branch.
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