NettyServerCnxn does not properly close socket on 4 letter word requests ------------------------------------------------------------------------
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) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira