I have tested the below cluster manager; as per the instruction i have
changed. However, when we try to deploy the apps on tomcat it was throwing
error that
WARNING: Unable to send map start message.
Apr 5, 2012 1:37:12 PM org.apache.catalina.ha.session.BackupManager start
SEVERE: Unable to start BackupManager
java.lang.RuntimeException: Unable to start replicated map.
at
org.apache.catalina.tribes.tipis.AbstractReplicatedMap.init(AbstractReplicatedMap.java:230)
Failed to start BackupManager: java.lang.IllegalArgumentException:
Listener already
exists:{}[org.apache.catalina.tribes.tipis.LazyReplicatedMap]
i am using below server.xml for all the 10 tomcats. Do i have to change it
for every tomcat. How would i fix it.
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="6">
<Manager className="org.apache.catalina.ha.session.BackupManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true" mapSendOptions="6"/>
<Channel
className="org.apache.catalina.tribes.group.GroupChannel">
<Membership
className="org.apache.catalina.tribes.membership.McastService"
address="228.0.0.4"
port="45563"
frequency="500"
dropTime="30000"/>
<Receiver
className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="auto"
port="4000"
selectorTimeout="5000"
timeout="60000"
maxThreads="6"/>
<Sender
className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport
className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"
timeout="60000" keepAliveCount="0"/>
</Sender>
<Interceptor
className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
<Interceptor
className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>
<!-- <Interceptor
className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/>
-->
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=".*\.gif|.*\.js|.*\.jpeg|.*\.jpg|.*\.png|.*\.htm|.*\.html|.*\.css|.*\.txt"/>
<Valve
className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<ClusterListener
className="org.apache.catalina.ha.session.ClusterSessionListener"/>
<ClusterListener
className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
</Cluster>
On Thu, Apr 5, 2012 at 2:25 AM, Mark Eggers <[email protected]> wrote:
> Comments inline and surrounded by =========== COMMENT =============
>
> ----- Original Message -----
>
> > From: Dhaval Jaiswal <[email protected]>
> > To: Tomcat Users List <[email protected]>
> > Cc:
> > Sent: Wednesday, April 4, 2012 12:12 PM
> > Subject: Re: SEVERE: Unable to start cluster.
> >
> >T hanks to all for sharing info. I will test it & come back to you.
> >
> > Also want to know that after starting session replication there will be a
> > huge logging in catalina.out for session information. How to minimize it
> ?
>
> =========== COMMENT =============
>
>
> Did read my other mail concerning how to manage logging? I thought I was
> pretty explicit (and gave an example). If my example for logging.properties
> was unclear, please ask specific questions (to the list).
>
> If you want less logging, then turn down the levels. See the following
> documentation:
>
>
> http://tomcat.apache.org/tomcat-6.0-doc/logging.html#Using_java.util.logging_(default)
>
>
> =========== COMMENT =============
>
>
> >
> > Below are the logs of catalina.out. As per the log it shows that it has
> > added member 192.168.3.18.
> >
> > Now we have a tomcat cluster group from 192.168.3.5 to 192.168.3.11.
> > However it is trying to connect to the 192.168.3.18.
> >
> >
> > 192.168.3.18 is the tomcat of another cluster. Where should i look into
> to
> > resolve this. Where to define this limit that it has to share the session
> > information from 192.168.3.5 to 192.168.3.11.
>
> =========== COMMENT =============
>
>
> From the documentation on the web site at:
>
>
> http://tomcat.apache.org/tomcat-6.0-doc/cluster-howto.html#Cluster_Information
>
>
> Membership is established using multicast heartbeats. Hence, if you wish
> to subdivide your clusters, you can do this by changing the multicast IP
> address or port in the <Membership> element.
>
> In other words, if you want multiple clusters change either the multicast
> address here:
>
> <Membership
> className="org.apache.catalina.tribes.membership.McastService"
> address="228.0.0.4"
> port="45564"
> frequency="500"
> dropTime="3000"/>
>
> to a different multicast address, or change the port in the above to a
> different port. The multicast address / port establishes the cluster group.
> The above snippet is from one of my server.xml files.
>
> You might also want to read up on how multicasting works.
>
> =========== COMMENT =============
>
>
> >
>
> >
> >
> > INFO: Replication member
> > added:org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88,
> 3,
> > 18}:4000,{-64, -88, 3, 18},4000, alive=18507474,id={25 -66 -54 110 84 -96
> > 79 -74 -84 -106 122 -65 -121 9 -16 5 }, payload={}, command={},
> domain={}, ]
> > Apr 5, 2012 12:31:10 AM
> > org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> > performBasicCheck
> > INFO: Suspect member, confirmed
> > alive.[org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88,
> 3,
> > 18}:4000,{-64, -88, 3, 18},4000, alive=18507474,id={25 -66 -54 110 84 -96
> > 79 -74 -84 -106 122 -65 -121 9 -16 5 }, payload={}, command={},
> domain={},
> > ]]
> > Apr 5, 2012 12:32:10 AM
> > org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> > memberDisappeared
> > INFO: Received
> >
> memberDisappeared[org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64,
> > -88, 3, 18}:4000,{-64, -88, 3, 18},4000, alive=18507474,id={25 -66 -54
> 110
> > 84 -96 79 -74 -84 -106 122 -65 -121 9 -16 5 }, payload={}, command={},
> > domain={}, ]] message. Will verify.
> > Apr 5, 2012 12:32:10 AM
> > org.apache.catalina.tribes.group.interceptors.TcpFailureDetector
> > memberDisappeared
> > INFO: Verification complete. Member still
> > alive[org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88,
> 3,
> > 18}:4000,{-64, -88, 3, 18},4000, alive=18507474,id={25 -66 -54 110 84 -96
> > 79 -74 -84 -106 122 -65 -121 9 -16 5 }, payload={}, command={},
> domain={},
> > ]]
> > Apr 5, 2012 12:32:10 AM
> > org.apache.catalina.tribes.tipis.AbstractReplicatedMap heartbeat
> > SEVERE: Unable to send AbstractReplicatedMap.ping message
> > org.apache.catalina.tribes.ChannelException: Operation has timed
> out(60000
> > ms.).; Faulty members:tcp://{-64, -88, 3, 18}:4000;
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > On Wed, Apr 4, 2012 at 8:43 PM, Thomas Rohde <[email protected]> wrote:
> >
> >> -----Ursprüngliche Nachricht-----
> >> Von: Dhaval Jaiswal <[email protected]>
> >> Gesendet: Mi 04.04.2012 16:41
> >> Betreff: SEVERE: Unable to start cluster.
> >> An: Tomcat Users List <[email protected]>;
> >> CC: Shrinivas Devarkonda <[email protected]>;
> >> > Hi List,
> >> >
> >> > Below is the error we are facing while starting tomcats.
> >> >
> >> > SEVERE: Unable to start cluster.
> >> > org.apache.catalina.tribes.ChannelException:
> java.net.SocketException:
> >> Not
> >> > a multicast address; No faulty members identified.
> >> >
> >> >
> >> > Our cluster setting is as below in server.xml
> >> >
> >> >
> >> > <Cluster
> > className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
> >> > channelSendOptions="6">
> >> > <Manager
> > className="org.apache.catalina.ha.session.BackupManager"
> >> > expireSessionsOnShutdown="false"
> >> > notifyListenersOnReplication="true"
> >> mapSendOptions="6"/>
> >> >
> >> > <Channel
> >> >
> > className="org.apache.catalina.tribes.group.GroupChannel">
> >> > <Membership
> >> >
> > className="org.apache.catalina.tribes.membership.McastService"
> >> > address="192.168.3.14"
> >> > port="45564"
> >> > frequency="500"
> >> > dropTime="30000"/>
> >> > <Receiver
> >> >
> > className="org.apache.catalina.tribes.transport.nio.NioReceiver"
> >> > address="auto"
> >> > port="4000"
> >> > selectorTimeout="5000"
> >> > timeout="60000"
> >> > maxThreads="6"/>
> >> >
> >> > <Sender
> >> >
> > className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
> >> > <Transport
> >> >
> > className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"
> >> > timeout="60000" keepAliveCount="0"/>
> >> > </Sender>
> >> > <Interceptor
> >> >
> >>
> >
> className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
> >> > <Interceptor
> >> >
> >>
> >
> className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interc
> >> > eptor"/>
> >> > <Interceptor
> >> >
> >>
> >
> className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/
> >> > >
> >> > </Channel>
> >> > <Valve
> > className="org.apache.catalina.ha.tcp.ReplicationValve"
> >> >
> >> >
> >>
> >
> filter=".*\.gif|.*\.js|.*\.jpeg|.*\.jpg|.*\.png|.*\.htm|.*\.html|.*\.css|.*\.txt
> >> > "/>
> >> > <Valve
> >> >
> > className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
> >> > <ClusterListener
> >> >
> > className="org.apache.catalina.ha.session.ClusterSessionListener"/>
> >> > <ClusterListener
> >> >
> >>
> >
> className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
> >> > </Cluster>
> >> >
> >> >
> >> >
> >> > Note: 192.168.3.14 is the IP of backup manager with java &
> > 192.168.3.9 is
> >> > the IP address of local tomcat where above server.xml is hosted.
> >> >
> >> > Please guide us as to how to overcome the issue & please give us
> > the
> >> sample
> >> > <cluster> </cluster> file if possible.
> >> >
> >>
> >> Hi Dhaval,
> >>
> >> you have to set a multicast ip address for the "address"
> > attribute of the
> >> McastService. A multicast address looks like 224.x.x.x.
> >>
> >> Take a look at http://en.wikipedia.org/wiki/Multicast_address for
> further
> >> details.
> >>
> >> The Tomcat cluster uses multicast for the management of the cluster
> member.
> >>
> >> Thomas
> >>
> > <http://www.via.com/>
> >
>
> . . . . just my two cents.
> /mde/
>
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>
>
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