I didnt see the version you are using but I would suggesttaking a look at this
patch by Peter Rossbach
Also make sure the attributes such as compress are identically configured
between sender and receiver..
http://issues.apache.org/bugzilla/show_bug.cgi?id=34389
Let us know if you need further
assistanceMartin______________________________________________Disclaimer and
confidentiality noteEverything in this e-mail and any attachments relates to
the official business of Sender. This transmission is of a confidential nature
and Sender does not endorse distribution to any party other than intended
recipient. Sender does not necessarily endorse content contained within this
transmission.> > 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> > >
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