-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Arun,
On 12/26/14 12:36 PM, Arun Kumar wrote: > I have two Tomcat 7.0 installed on two different machines and > edited the server.xml file on both the machines with the code > below, i am not sure if the Tomcats are clustered. Which exact version of Tomcat 7.0? > I tried to turn of one Tomcat manually to check if the clustering > is implemented or not. But the failover doesn't work. Are you expecting that your sessions will be available to any node, or are you using sticky sessions? The term "cluster" usually indicates that you want distributable sessions that will be available on any cluster node, but I just wanted to confirm that's what you want. If you can afford to have users re-login and re-start a workflow when a node fails, using session-stickiness without any formal "clustering" is a much easier configuration and will yield higher performance from the whole setup. Anyway... > Please let me know how to confirm if the servers are clustered or > not. Appreciate your help. > > <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" > channelSendOptions="6"> > > <Manager className="org.apache.catalina.ha.session.BackupManager" > expireSessionsOnShutdown="false" > notifyListenersOnReplication="true" mapSendOptions="6"/> <!-- > <Manager className="org.apache.catalina.ha.session.DeltaManager" > expireSessionsOnShutdown="false" > notifyListenersOnReplication="true"/> --> <Channel > className="org.apache.catalina.tribes.group.GroupChannel"> > <Membership > className="org.apache.catalina.tribes.membership.McastService" > address="228.0.0.4" port="45564" frequency="500" dropTime="3000"/> > <Receiver > className="org.apache.catalina.tribes.transport.nio.NioReceiver" > address="auto" port="5000" selectorTimeout="100" maxThreads="6"/> > > <Sender > className="org.apache.catalina.tribes.transport.ReplicationTransmitter"> > > <Transport > className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/> > > </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"/> > > <Deployer > className="org.apache.catalina.ha.deploy.FarmWarDeployer" > tempDir="/tmp/war-temp/" deployDir="/tmp/war-deploy/" > watchDir="/tmp/war-listen/" watchEnabled="false"/> > > <ClusterListener > className="org.apache.catalina.ha.session.ClusterSessionListener"/> > > </Cluster> When you say "failover doesn't work" do you mean that you don't get sent to another back-end server, or do you mean that when you get to that alternate server, your session isn't there? My first question is: do you have <distributable/> set in your web.xml? That's the easiest thing to overlook because it's not in server.xml and will silently prevent your sessions from being distributed to the rest of the cluster. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJUntiuAAoJEBzwKT+lPKRYZPsP/0WLFhAbn/ASUbGSoXDhxs99 TMVs3Y7+UcacuosSpSldT2NLqY5qUMdGtJY6UUl4LVQ2NPdZ9bgak8MJCgl0IsnK r7bld1KrlDp47O/7gt9lEqqvPZ93jWBE3/CNdCPX8dHaAXx5NnDHlJsxKc/va1G4 H5b5pMc0GAzkhGCdEe0f0+cTQ8FXKfF83jUPmjhNCkyPsh352zIPo0yhkxBh4LOm UCakw54k1YtGxcpSQlc5NuCEtHTq+rKZQPTAL2q8pYfxZe4kqbPFGF+mY+BCkmLR ndSmZdY+FIWx1lvRd3QmPziPdvxQETrCveDf7GlUZz2qTgNtOItlz5me0bDG4Zfx B4xf6qD7LfKoUtV/FSjj6nsT8AXIfJy2sVC0JY9sWWxqDmvoPa+0M1Fat8UlGq0m c2wNuHSdAjnAr+OUS2rKAXUkp/Qe1xbK8/XvjhplPUauN0pjU3o9FsToMrpT1teP llXOxF6G6cPr4QEpfGVv1QP7e+PapOnX1IFR1hVqcJPYYAcuzTtZpCf/j1lJJKIO S7PDj8W0AeKyLoBxWvOk+tzTQpQ32YPMg0joVpA8NmZxONedXc09AOKmV/SabgXY GJMTXyLxGrAM0k6nzfSyXyPI/QsSqLOdeyb8Br1FZxj2Ec1ybuuNMhhBFa/yVF10 GZR36ISkSFpcXZzHzahw =AlDX -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
