Hello together,
I am using to Tomcat 5.5.26 Servers. I took over the responsibility for this
system some time ago.
Since then we already got the following error message.
SEVERE: Manager [/mywebapp]: Unable to receive message through TCP channel
java.lang.ClassNotFoundException:
After questioning what this error is about I got no response but the comment
that everything is running fine.
So I haven't searhc after it. But now after having a rollout of new servlet
version we have some serious
performance issues. And now I have to check for every severe error message I
can find.
But unfornatly I haven't found a solution or cause for this.
The only thing which I have found is a posting that this might be a problem of
the tomcats version and
that this might be a bug which was solved in 5.5.28. Is this correct?
The cluster configuration part in server.xml looks like a standard
configuration:
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
managerClassName="org.apache.catalina.cluster.session.DeltaManager"
expireSessionsOnShutdown="false"
useDirtyFlag="true"
notifyListenersOnReplication="true">
<Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4"
mcastPort="45564"
mcastFrequency="500"
mcastDropTime="3000"/>
<Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="auto"
tcpListenPort="4002"
tcpSelectorTimeout="100"
tcpThreadCount="6"/>
<Sender
className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
replicationMode="pooled"
ackTimeout="15000"/>
<Valve className="org.apache.catalina.cluster.tcp.ReplicationValve"
filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.css;.*\.txt;"/>
<Deployer
className="org.apache.catalina.cluster.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/"
deployDir="/tmp/war-deploy/"
watchDir="/tmp/war-listen/"
watchEnabled="false"/>
<ClusterListener
className="org.apache.catalina.cluster.session.ClusterSessionListener"/>
</Cluster>
I found out thatwe are not using the Deployer context. It is just configured,
but both Tomcats servers use a
deployment path on its local storage.
Has somebody an idea?
Mit freundlichen Grüßen / Yours sincerely
Uwe Hellmann
T-Systems International GmbH
Production CSS
GCU Large Accounts
AC Express & Logistics LT1
Gradestr. 20, 30163 Hannover
+49 511 333 - 1233 (Tel.)
+49 511 333 - 1287 (Fax)
Email: [email protected]<mailto:[email protected]>
Internet: http://www.t-systems.com<http://www.t-systems.com/>
T-Systems International GmbH
Aufsichtsrat: René Obermann (Vorsitzender)
Geschäftsführung: Reinhard Clemens (Vorsitzender), Dr. Ferri Abolhassan, Ulrich
Meister, Georg Pepping, Hagen Rickmann, Dietmar Wendt, Klaus Werner
Handelsregister: Amtsgericht Frankfurt am Main HRB 55933
Sitz der Gesellschaft: Frankfurt am Main
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