Till Rohrmann created FLINK-18832:
-------------------------------------
Summary: BoundedBlockingSubpartition does not work with StreamTask
Key: FLINK-18832
URL: https://issues.apache.org/jira/browse/FLINK-18832
Project: Flink
Issue Type: Bug
Components: Runtime / Network, Runtime / Task
Affects Versions: 1.11.1, 1.10.1, 1.12.0
Reporter: Till Rohrmann
The {{BoundedBlockingSubpartition}} does not work with a {{StreamTask}} because
the {{StreamTask}} instantiates an {{OutputFlusher}} which concurrently
accesses the {{BoundedBlockingSubpartition}}. This concurrency can lead to a
double closing of the underlying {{BufferConsumer}} which manifests in this
stack trace:
{code}
[9:15 PM] Caused by:
org.apache.flink.shaded.netty4.io.netty.util.IllegalReferenceCountException:
refCnt: 0, increment: 1
at
org.apache.flink.shaded.netty4.io.netty.util.internal.ReferenceCountUpdater.retain0(ReferenceCountUpdater.java:123)
at
org.apache.flink.shaded.netty4.io.netty.util.internal.ReferenceCountUpdater.retain(ReferenceCountUpdater.java:110)
at
org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.retain(AbstractReferenceCountedByteBuf.java:80)
at
org.apache.flink.runtime.io.network.buffer.NetworkBuffer.retainBuffer(NetworkBuffer.java:174)
at
org.apache.flink.runtime.io.network.buffer.NetworkBuffer.retainBuffer(NetworkBuffer.java:47)
at
org.apache.flink.runtime.io.network.buffer.ReadOnlySlicedNetworkBuffer.retainBuffer(ReadOnlySlicedNetworkBuffer.java:127)
at
org.apache.flink.runtime.io.network.buffer.ReadOnlySlicedNetworkBuffer.retainBuffer(ReadOnlySlicedNetworkBuffer.java:41)
at
org.apache.flink.runtime.io.network.buffer.BufferConsumer.build(BufferConsumer.java:108)
at
org.apache.flink.runtime.io.network.partition.BoundedBlockingSubpartition.writeAndCloseBufferConsumer(BoundedBlockingSubpartition.java:156)
at
org.apache.flink.runtime.io.network.partition.BoundedBlockingSubpartition.flushCurrentBuffer(BoundedBlockingSubpartition.java:144)
at
org.apache.flink.runtime.io.network.partition.BoundedBlockingSubpartition.flush(BoundedBlockingSubpartition.java:135)
at
org.apache.flink.runtime.io.network.partition.ResultPartition.flushAll(ResultPartition.java:245)
at
org.apache.flink.runtime.io.network.api.writer.RecordWriter.flushAll(RecordWriter.java:183)
at
org.apache.flink.streaming.runtime.io.RecordWriterOutput.flush(RecordWriterOutput.java:156)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain.flushOutputs(OperatorChain.java:344)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.afterInvoke(StreamTask.java:602)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:544)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546)
at java.lang.Thread.run(Thread.java:748)
{code}
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