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https://issues.apache.org/jira/browse/FLINK-18595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17157944#comment-17157944
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Zhijiang commented on FLINK-18595:
----------------------------------
Thanks for reporting this [~dian.fu]. It is caused by concurrently recycling
exclusive and floating buffers by both task thread and canceller thread, and it
is only valid in release-1.10 branch. I will consider how to fix it properly.
> Deadlock during job shutdown
> ----------------------------
>
> Key: FLINK-18595
> URL: https://issues.apache.org/jira/browse/FLINK-18595
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Affects Versions: 1.10.0
> Reporter: Dian Fu
> Assignee: Zhijiang
> Priority: Blocker
>
> https://travis-ci.org/github/apache/flink/jobs/707843779
> {code}
> Found one Java-level deadlock:
> =============================
> "Canceler for Flat Map -> Sink: Unnamed (9/12)
> (b87b3f2cae66987d94399f12d7fb4641).":
> waiting to lock monitor 0x00007f51f655e228 (object 0x00000000812b9180, a
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue),
> which is held by "Flat Map -> Sink: Unnamed (9/12)"
> "Flat Map -> Sink: Unnamed (9/12)":
> waiting to lock monitor 0x000055fb00bb4b88 (object 0x00000000812b9210, a
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue),
> which is held by "Canceler for Flat Map -> Sink: Unnamed (9/12)
> (b87b3f2cae66987d94399f12d7fb4641)."
> Java stack information for the threads listed above:
> ===================================================
> "Canceler for Flat Map -> Sink: Unnamed (9/12)
> (b87b3f2cae66987d94399f12d7fb4641).":
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.notifyBufferAvailable(RemoteInputChannel.java:360)
> - waiting to lock <0x00000000812b9180> (a
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue)
> at
> org.apache.flink.runtime.io.network.buffer.LocalBufferPool.fireBufferAvailableNotification(LocalBufferPool.java:315)
> at org.apache.flink.runtime.io.network.b4511: No such
> processuffer.LocalBufferPool.recycle(LocalBufferPool.java:305)
> at
> org.apache.flink.runtime.io.network.buffer.NetworkBuffer.deallocate(NetworkBuffer.java:197)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.handleRelease(AbstractReferenceCountedByteBuf.java:110)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.release(AbstractReferenceCountedByteBuf.java:100)
> at
> org.apache.flink.runtime.io.network.buffer.NetworkBuffer.recycleBuffer(NetworkBuffer.java:171)
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue.releaseAll(RemoteInputChannel.java:665)
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.releaseAllResources(RemoteInputChannel.java:254)
> - locked <0x00000000812b9210> (a
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue)
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.close(SingleInputGate.java:431)
> - locked <0x0000000080ba2488> (a java.lang.Object)
> at
> org.apache.flink.runtime.taskmanager.InputGateWithMetrics.close(InputGateWithMetrics.java:85)
> at
> org.apache.flink.runtime.taskmanager.Task.closeNetworkResources(Task.java:901)
> at
> org.apache.flink.runtime.taskmanager.Task$$Lambda$434/985222953.run(Unknown
> Source)
> at
> org.apache.flink.runtime.taskmanager.Task$TaskCanceler.run(Task.java:1370)
> at java.lang.Thread.run(Thread.java:748)
> "Flat Map -> Sink: Unnamed (9/12)":
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.notifyBufferAvailable(RemoteInputChannel.java:360)
> - waiting to lock <0x00000000812b9210> (a
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue)
> at
> org.apache.flink.runtime.io.network.buffer.LocalBufferPool.fireBufferAvailableNotification(LocalBufferPool.java:315)
> at
> org.apache.flink.runtime.io.network.buffer.LocalBufferPool.recycle(LocalBufferPool.java:305)
> at
> org.apache.flink.runtime.io.network.buffer.NetworkBuffer.deallocate(NetworkBuffer.java:197)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.handleRelease(AbstractReferenceCountedByteBuf.java:110)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.release(AbstractReferenceCountedByteBuf.java:100)
> at
> org.apache.flink.runtime.io.network.buffer.NetworkBuffer.recycleBuffer(NetworkBuffer.java:171)
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue.addExclusiveBuffer(RemoteInputChannel.java:629)
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.recycle(RemoteInputChannel.java:314)
> - locked <0x00000000812b9180> (a
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel$AvailableBufferQueue)
> at
> org.apache.flink.runtime.io.network.buffer.NetworkBuffer.deallocate(NetworkBuffer.java:197)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.handleRelease(AbstractReferenceCountedByteBuf.java:110)
> at
> org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.release(AbstractReferenceCountedByteBuf.java:100)
> at
> org.apache.flink.runtime.io.network.buffer.NetworkBuffer.recycleBuffer(NetworkBuffer.java:171)
> at
> org.apache.flink.streaming.runtime.io.CachedBufferStorage.close(CachedBufferStorage.java:113)
> at
> org.apache.flink.streaming.runtime.io.CheckpointedInputGate.cleanup(CheckpointedInputGate.java:216)
> at
> org.apache.flink.streaming.runtime.io.StreamTaskNetworkInput.close(StreamTaskNetworkInput.java:208)
> at
> org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.close(StreamOneInputProcessor.java:82)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.cleanup(StreamTask.java:298)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.cleanUpInvoke(StreamTask.java:555)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:480)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:708)
> at org.apache.flink.runtime.taskmanager.T
> ask.run(Task.java:533)
> at java.lang.Thread.run(Thread.java:748)
> Found 1 deadlock.
> {code}
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