NettyServerCnxn does not properly close socket on 4 letter word requests
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Key: ZOOKEEPER-1179
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1179
Project: ZooKeeper
Issue Type: Bug
Affects Versions: 3.4.0
Reporter: Camille Fournier
When calling a 4-letter-word to a server configured to use
NettyServerCnxnFactory, the factory will not properly cancel all the keys and
close the socket after sending the response for the 4lw. The close request will
throw this exception, and the thread will not shut down:
2011-09-13 12:14:17,546 - WARN [New I/O server worker
#1-1:NettyServerCnxnFactory$CnxnChannelHandler@117] - Exception caught [id:
0x009300cc, /1.1.1.1:38542 => /139.172.114.138:2181] EXCEPTION:
java.io.IOException: A non-blocking socket operation could not be completed
immediately
java.io.IOException: A non-blocking socket operation could not be completed
immediately
at sun.nio.ch.SocketDispatcher.close0(Native Method)
at sun.nio.ch.SocketDispatcher.preClose(SocketDispatcher.java:44)
at
sun.nio.ch.SocketChannelImpl.implCloseSelectableChannel(SocketChannelImpl.java:684)
at
java.nio.channels.spi.AbstractSelectableChannel.implCloseChannel(AbstractSelectableChannel.java:201)
at
java.nio.channels.spi.AbstractInterruptibleChannel.close(AbstractInterruptibleChannel.java:97)
at
org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:593)
at
org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:119)
at
org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:76)
at org.jboss.netty.channel.Channels.close(Channels.java:720)
at
org.jboss.netty.channel.AbstractChannel.close(AbstractChannel.java:208)
at
org.apache.zookeeper.server.NettyServerCnxn.close(NettyServerCnxn.java:116)
at
org.apache.zookeeper.server.NettyServerCnxn.cleanupWriterSocket(NettyServerCnxn.java:241)
at
org.apache.zookeeper.server.NettyServerCnxn.access$0(NettyServerCnxn.java:231)
at
org.apache.zookeeper.server.NettyServerCnxn$CommandThread.run(NettyServerCnxn.java:314)
at
org.apache.zookeeper.server.NettyServerCnxn$CommandThread.start(NettyServerCnxn.java:305)
at
org.apache.zookeeper.server.NettyServerCnxn.checkFourLetterWord(NettyServerCnxn.java:674)
at
org.apache.zookeeper.server.NettyServerCnxn.receiveMessage(NettyServerCnxn.java:791)
at
org.apache.zookeeper.server.NettyServerCnxnFactory$CnxnChannelHandler.processMessage(NettyServerCnxnFactory.java:217)
at
org.apache.zookeeper.server.NettyServerCnxnFactory$CnxnChannelHandler.messageReceived(NettyServerCnxnFactory.java:141)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:350)
at
org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:281)
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:201)
at
org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
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