curcur commented on a change in pull request #13614:
URL: https://github.com/apache/flink/pull/13614#discussion_r505277251
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/BufferWritingResultPartition.java
##########
@@ -128,26 +128,40 @@ protected void flushAllSubpartitions(boolean
finishProducers) {
@Override
public void emitRecord(ByteBuffer record, int targetSubpartition)
throws IOException {
- do {
- final BufferBuilder bufferBuilder =
getSubpartitionBufferBuilder(targetSubpartition);
- bufferBuilder.appendAndCommit(record);
+ BufferBuilder buffer =
subpartitionBufferBuilders[targetSubpartition];
- if (bufferBuilder.isFull()) {
-
finishSubpartitionBufferBuilder(targetSubpartition);
- }
- } while (record.hasRemaining());
+ if (buffer == null) {
+ buffer =
getNewEmptySubpartitionBufferBuilderForNewRecord(targetSubpartition);
+ }
+ buffer.appendAndCommit(record);
+
+ while (record.hasRemaining()) {
+ finishSubpartitionBufferBuilder(targetSubpartition);
+ buffer =
getNewEmptySubpartitionBufferBuilderForRecordContinuation(record,
targetSubpartition);
Review comment:
I've rewritten the first commit.
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