Hello Martin, If you use the default tomcat logging [1] probably setting
org.apache.catalina.ha.level = FINE or FINEST in your $CATALINA_BASE/conf/logging.properties will give you the information you need. Hope it helps, Luis [1] https://tomcat.apache.org/tomcat-7.0-doc/logging.html 2018-05-03 16:17 GMT+02:00 Martin Knoblauch <kn...@knobisoft.de>: > Hi, > > one question on Tomcat HA clustering. Is there a way (e.g. a log file > pattern to look for) to find out that a sessions activity has actually been > transfered to another cluster node? We are operating a productive > environment with 6 clustered TC processes and we would like to know how > oftenthe clustering actually kicks in. > > We are on Tomcat 7. Please don't tell me to upgrade, but the productive > version of the software is not certified with anything newer. > > Here is the cluster part of the configuration: > > <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" > channelSendOptions="8"> > > <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" > bind="real hostname censored" > port="45564" > frequency="1000" > dropTime="30000"/> > <Receiver > className="org.apache.catalina.tribes.transport.nio.NioReceiver" > address="auto" > port="4001" > autoBind="100" > selectorTimeout="5000" > maxThreads="6"/> > > <Sender > className="org.apache.catalina.tribes.transport.ReplicationTransmitter" > > <Transport > className="org.apache.catalina.tribes.transport.nio.PooledParallelSender" > timeout="60000"/> > </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" > interval="100000"/> > </Channel> > > > <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" > > filter=".*\.gif;.*\.js;.*\.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"/> > > <Valve > className="org.apache.catalina.ha.session.JvmRouteBinderValve" > enabled="true" sessionIdAttribute="takeoverSessionid"/> > <ClusterListener > className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener" > /> > <ClusterListener > className="org.apache.catalina.ha.session.ClusterSessionListener"/> > </Cluster> > > Cheers > Martin > -- > ------------------------------------------------------ > Martin Knoblauch > email: k n o b i AT knobisoft DOT de > www: http://www.knobisoft.de > -- "Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better." - Samuel Beckett
