download wireshark, and trace udp packets,
there must be something on your system, that is not broadcasting or
receiving multicast packets
Filip
Randy Paries wrote:
Filip
So here is what i do not understand , and i appreciate your help.
1) I have completely swapped out the hardware. Entirely new box.
2) completely new OS, FC4 to centos 5
3) same version of tomcat and same config files.
4) tried two different switches.
5) no fw or iptables currently running.
that is what is so confusing . The other servers seem to bee running fine.
Randy
On Jan 15, 2008 12:27 PM, Filip Hanik - Dev Lists <[EMAIL PROTECTED]> wrote:
question is, why are you using tcpdump, when you need to track down UDP
packets :)
the reason there is no membership established is because the machine is
not receiving multicast packets (UDP), so that's what you need to track down
Filip
Randy Paries wrote:
On Jan 7, 2008 2:49 PM, Filip Hanik - Dev Lists <[EMAIL PROTECTED]> wrote:
easiest way to see your packets fly by, is to use wireshark and just
sniff UDP packets
Filip
Randy Paries wrote:
On Jan 7, 2008 1:55 PM, Filip Hanik - Dev Lists <[EMAIL PROTECTED]> wrote:
org.apache.catalina.cluster.session.DeltaManager getAllClusterSessions
INFO: Manager []: skipping state transfer. No members active in cluster group.
this indicates that the box not working, is not receiving multicast
messages from the other nodes.
you'd need to look into the multicasting configuration in server.xml and
also on your box/network
Filip
Randy Paries wrote:
Hello,
I need some help.
I rolled out a new version of my web app last night
Stopped and started tomcat and now one of my boxes (they all have the
same webapp) will not attach(if that is the correct term) to the
cluster. I am doing session sharing between three tomcat servers. I
did not change any of the server.xml stuff
I am running tomcat 5.5.15
Please help ASAP, this is a production box and not sure what to do.
this is from the catalina.out on a working Box.
///--------------------Stuff Deleted ---------------------------////
Filip,
thanks for responding.
All three boxes have this in the server.xml
Any ideas on how to test to see if this one box is recieving multicast messages?
<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="228.0.0.9"
mcastPort="45564"
mcastFrequency="500"
mcastDropTime="3000"/>
<Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="auto"
tcpListenPort="4001"
tcpSelectorTimeout="100"
tcpThreadCount="35"/>
<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;.*\.htm;.*\.html;.*\.css;.*\.txt;.*\.pdf;\*.wav;\*.mp3;"/>
<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>
Hello,
So here is an update, still struggling with this problem.
if I do a tcpdump port 4001, i can see lots of traffic on box2 and
box3 but none on box 1
so tonight i swapped out eth1 (i was told that maybe a nic card could
not transmit UDP)
i also went into the server.xml and forced tcpListenAddress to eth1 on each box.
tcpdump port 4001 -i eth1 gives me traffic on box2 and box3 but not box1
i am no longer getthing the exception on boot up, all get now is:
INFO: Cluster is about to start
Jan 8, 2008 11:06:08 PM
org.apache.catalina.cluster.tcp.ReplicationTransmitter start
INFO: Start ClusterSender at cluster
Catalina:type=Cluster,host=localhost with name
Catalina:type=ClusterSender,host=localhost
Jan 8, 2008 11:06:08 PM org.apache.catalina.cluster.mcast.McastService start
INFO: Sleeping for 2000 secs to establish cluster membership
Jan 8, 2008 11:06:10 PM org.apache.catalina.cluster.mcast.McastService
registerMBean
INFO: membership mbean registered
(Catalina:type=ClusterMembership,host=localhost)
Jan 8, 2008 11:06:10 PM org.apache.catalina.cluster.deploy.FarmWarDeployer start
INFO: Cluster FarmWarDeployer started.
Jan 8, 2008 11:06:11 PM org.apache.catalina.cluster.session.DeltaManager start
INFO: Register manager to cluster element Host with name localhost
Jan 8, 2008 11:06:11 PM org.apache.catalina.cluster.session.DeltaManager start
INFO: Starting clustering manager at
Jan 8, 2008 11:06:11 PM
org.apache.catalina.cluster.session.DeltaManager getAllClusterSessions
INFO: Manager []: skipping state transfer. No members active in cluster group.
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