Elliott Clark created HDFS-9669:
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Summary: 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
Reporter: Elliott Clark
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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