wsry commented on a change in pull request #13447:
URL: https://github.com/apache/flink/pull/13447#discussion_r493470252
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/api/writer/RecordWriter.java
##########
@@ -109,89 +94,58 @@
}
}
- protected void emit(T record, int targetChannel) throws IOException,
InterruptedException {
+ protected void emit(T record, int targetSubpartition) throws
IOException {
checkErroneous();
- serializer.serializeRecord(record);
-
- // Make sure we don't hold onto the large intermediate
serialization buffer for too long
- copyFromSerializerToTargetChannel(targetChannel);
- }
-
- /**
- * @param targetChannel
- * @return <tt>true</tt> if the intermediate serialization buffer
should be pruned
- */
- protected boolean copyFromSerializerToTargetChannel(int targetChannel)
throws IOException, InterruptedException {
- // We should reset the initial position of the intermediate
serialization buffer before
- // copying, so the serialization results can be copied to
multiple target buffers.
- serializer.reset();
-
- boolean pruneTriggered = false;
- BufferBuilder bufferBuilder = getBufferBuilder(targetChannel);
- SerializationResult result =
serializer.copyToBufferBuilder(bufferBuilder);
- while (result.isFullBuffer()) {
- finishBufferBuilder(bufferBuilder);
-
- // If this was a full record, we are done. Not breaking
out of the loop at this point
- // will lead to another buffer request before breaking
out (that would not be a
- // problem per se, but it can lead to stalls in the
pipeline).
- if (result.isFullRecord()) {
- pruneTriggered = true;
- emptyCurrentBufferBuilder(targetChannel);
- break;
- }
-
- bufferBuilder = requestNewBufferBuilder(targetChannel);
- result = serializer.copyToBufferBuilder(bufferBuilder);
- }
- checkState(!serializer.hasSerializedData(), "All data should be
written at once");
+ targetPartition.emitRecord(serializeRecord(serializer, record),
targetSubpartition);
if (flushAlways) {
- flushTargetPartition(targetChannel);
+ targetPartition.flush(targetSubpartition);
}
- return pruneTriggered;
}
public void broadcastEvent(AbstractEvent event) throws IOException {
broadcastEvent(event, false);
}
public void broadcastEvent(AbstractEvent event, boolean
isPriorityEvent) throws IOException {
- try (BufferConsumer eventBufferConsumer =
EventSerializer.toBufferConsumer(event)) {
- for (int targetChannel = 0; targetChannel <
numberOfChannels; targetChannel++) {
- tryFinishCurrentBufferBuilder(targetChannel);
-
- // Retain the buffer so that it can be recycled
by each channel of targetPartition
-
targetPartition.addBufferConsumer(eventBufferConsumer.copy(), targetChannel,
isPriorityEvent);
- }
+ targetPartition.broadcastEvent(event, isPriorityEvent);
- if (flushAlways) {
- flushAll();
- }
+ if (flushAlways) {
+ flushAll();
}
}
- public void flushAll() {
- targetPartition.flushAll();
+ @VisibleForTesting
+ public static ByteBuffer serializeRecord(
Review comment:
I removed BufferWritingResultPartition#addBufferConsumer completely.
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