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https://issues.apache.org/jira/browse/HDFS-12994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16319031#comment-16319031
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Manoj Govindassamy edited comment on HDFS-12994 at 1/9/18 7:51 PM:
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Got it. Patch v01 looks good to me. +1, thanks for working on this.
was (Author: manojg):
Got it. Patch v02 looks good to me. +1, thanks for working on this.
> TestReconstructStripedFile.testNNSendsErasureCodingTasks fails due to socket
> timeout
> ------------------------------------------------------------------------------------
>
> Key: HDFS-12994
> URL: https://issues.apache.org/jira/browse/HDFS-12994
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: erasure-coding
> Affects Versions: 3.0.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HDFS-12994.00.patch, HDFS-12994.01.patch
>
>
> Occasionally, {{testNNSendsErasureCodingTasks}} fails due to socket timeout
> {code}
> 2017-12-26 20:35:19,961 [StripedBlockReconstruction-0] INFO
> datanode.DataNode (StripedBlockReader.java:createBlockReader(132)) -
> Exception while creating remote block reader, datanode 127.0.0.1:34145
> java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> at
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedBlockReader.newConnectedPeer(StripedBlockReader.java:148)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedBlockReader.createBlockReader(StripedBlockReader.java:123)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedBlockReader.<init>(StripedBlockReader.java:83)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedReader.createReader(StripedReader.java:169)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedReader.initReaders(StripedReader.java:150)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedReader.init(StripedReader.java:133)
> at
> org.apache.hadoop.hdfs.server.datanode.erasurecode.StripedBlockReconstructor.run(StripedBlockReconstructor.java:56)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> while the target datanode is removed in the test:
> {code}
> 2017-12-26 20:35:18,710 [Thread-2393] INFO net.NetworkTopology
> (NetworkTopology.java:remove(219)) - Removing a node:
> /default-rack/127.0.0.1:34145
> {code}
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