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ASF GitHub Bot commented on FLINK-7456: --------------------------------------- Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4552#discussion_r161569135 --- Diff: flink-runtime/src/test/java/org/apache/flink/runtime/io/network/partition/PipelinedSubpartitionTest.java --- @@ -134,13 +135,22 @@ public void testBasicPipelinedProduceConsumeLogic() throws Exception { assertEquals(2 * BUFFER_SIZE, subpartition.getTotalNumberOfBytes()); verify(listener, times(2)).notifyBuffersAvailable(eq(1L)); + assertFalse(view.nextBufferIsEvent()); + read = view.getNextBuffer(); + assertNotNull(read); + assertEquals(0, subpartition.getBuffersInBacklog()); + assertEquals(subpartition.getBuffersInBacklog(), read.buffersInBacklog()); + assertNull(view.getNextBuffer()); + assertEquals(0, subpartition.getBuffersInBacklog()); + // Add event to the queue... Buffer event = createBuffer(); event.tagAsEvent(); subpartition.add(event); + assertTrue(view.nextBufferIsEvent()); assertEquals(3, subpartition.getTotalNumberOfBuffers()); - assertEquals(1, subpartition.getBuffersInBacklog()); + assertEquals(0, subpartition.getBuffersInBacklog()); assertEquals(3 * BUFFER_SIZE, subpartition.getTotalNumberOfBytes()); verify(listener, times(3)).notifyBuffersAvailable(eq(1L)); } --- End diff -- maybe verify that `nextBufferIsEvent()` returns the right thing after adding a real buffer now (with the event being next) > Implement Netty sender incoming pipeline for credit-based > --------------------------------------------------------- > > Key: FLINK-7456 > URL: https://issues.apache.org/jira/browse/FLINK-7456 > Project: Flink > Issue Type: Sub-task > Components: Network > Reporter: zhijiang > Assignee: zhijiang > Priority: Major > Fix For: 1.5.0 > > > This is a part of work for credit-based network flow control. > On sender side, each subpartition view maintains an atomic integer > {{currentCredit}} from receiver. Once receiving the messages of > {{PartitionRequest}} and {{AddCredit}}, the {{currentCredit}} is added by > deltas. > Each view also maintains an atomic boolean field to mark it as registered > available for transfer to make sure it is enqueued in handler only once. If > the {{currentCredit}} increases from zero and there are available buffers in > the subpartition, the corresponding view will be enqueued for transferring > data. -- This message was sent by Atlassian JIRA (v7.6.3#76005)