Hi All, We have a clustered setup doing session replication between 2 hosts. On one of the hosts we are seeing a number of disconnects from the replication thread.
I have looked around on the web a bit and one thread I came across from seemingly a tomcat dev implied that this wasn't much of an issue. (http://www.mail-archive.com/users@tomcat.apache.org/msg09303.html) Nov 21, 2007 11:15:50 AM org.apache.catalina.cluster.tcp.TcpReplicationThread run SEVERE: TCP Worker thread in cluster caught 'java.io.IOException: Connection reset by peer' closing channel java.io.IOException: Connection reset by peer at sun.nio.ch.FileDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233) at sun.nio.ch.IOUtil.read(IOUtil.java:206) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:207) at org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpReplicationThread.java:125) at org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationThread.java:69) We are seeing this behavior under next to no load. I want to make sure that this really isn't an issue. And if it is an issue is there anything we can do configuration wise to mitigate it? This is our cluster configuration: <Cluster name="clusterfoo" className="org.apache.catalina.cluster.tcp.SimpleTcpCluster" doClusterLog="true" clusterLogName="clusterlog" managerClassName="org.apache.catalina.cluster.session.DeltaManager" expireSessionsOnShutdown="false" useDirtyFlag="true" notifyListenersOnReplication="true"> <Membership className="org.apache.catalina.cluster.mcast.McastService" mcastAddr="239.192.0.2" mcastPort="2000" mcastFrequency="500" mcastDropTime="3000"/> <Receiver className="org.apache.catalina.cluster.tcp.ReplicationListener" tcpListenAddress="auto" tcpListenPort="8300" tcpSelectorTimeout="100" tcpThreadCount="6"/> <Sender className="org.apache.catalina.cluster.tcp.ReplicationTransmitter" replicationMode="pooled" ackTimeout="15000" waitForAck="true" keepAliveTimeout="-1" /> <Valve className="org.apache.catalina.cluster.tcp.ReplicationValve" filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.* \.html;.*\.css;.*\.txt;"/> <ClusterListener className="org.apache.catalina.cluster.session.ClusterSessionListener"/> </Cluster> and our setup details: Using JRE_HOME: /usr/local/j2sdk1.4.2_04 Server version: Apache Tomcat/5.5.11 Server built: Aug 22 2005 02:06:57 Server number: 5.5.11.0 OS Name: Linux OS Version: 2.6.9-34.ELsmp Architecture: i386 JVM Version: 1.4.2_04-b05 JVM Vendor: Sun Microsystems Inc. Cheers, Danny --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
