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https://issues.apache.org/jira/browse/HDFS-9669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15109138#comment-15109138
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Gary Helmling commented on HDFS-9669:
-------------------------------------
Patch looks good to me (non-binding). Seems like it closes the only hole in
applying ipc.server.listen.queue.size.
> TcpPeerServer should respect ipc.server.listen.queue.size
> ---------------------------------------------------------
>
> Key: HDFS-9669
> URL: https://issues.apache.org/jira/browse/HDFS-9669
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.2
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HDFS-9669.0.patch, HDFS-9669.1.patch, HDFS-9669.1.patch
>
>
> On periods of high traffic we are seeing:
> {code}
> 16/01/19 23:40:40 WARN hdfs.DFSClient: Connection failure: Failed to connect
> to /10.138.178.47:50010 for file /MYPATH/MYFILE for block
> BP-1935559084-10.138.112.27-1449689748174:blk_1080898601_7375294:java.io.IOException:
> Connection reset by peer
> java.io.IOException: Connection reset by peer
> at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
> at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
> at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
> at sun.nio.ch.IOUtil.write(IOUtil.java:65)
> at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
> at
> org.apache.hadoop.net.SocketOutputStream$Writer.performIO(SocketOutputStream.java:63)
> at
> org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
> at
> org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:159)
> at
> org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:117)
> at
> org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:109)
> at java.io.DataOutputStream.writeInt(DataOutputStream.java:197)
> {code}
> At the time that this happens there are way less xceivers than configured.
> On most JDK's this will make 50 the total backlog at any time. This
> effectively means that any GC + Busy time willl result in tcp resets.
> http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/tip/src/share/classes/java/net/ServerSocket.java#l370
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