Many thanks Chris, Don't laugh I was looking at those values after Keiichi kindly mentioned this too (thankyou!) and was thinking hmm where is 15 no mention! Ok makes sense now.
Im trying to find out why we chose static, I think it was a guess at trying to stop the multicast interference from other hosts. I think we just had it all set wrong to start with. Looking at many online examples like here https://tomcat.apache.org/tomcat-9.0-doc/cluster-howto.html is what i looked would this suffice? If you could recommend the params I need just for two hosts to talk without interference ie specifying group or unique id etc. -----Original Message----- From: Christopher Schultz <ch...@christopherschultz.net> Sent: 31 January 2022 14:46 To: users@tomcat.apache.org Subject: Re: Tomcat 9 Session replication All, On 1/31/22 08:04, Keiichi Fujino wrote: > If you use StaticMembershipService, you must set > Cluster#channelStartOptions to 15 (default). To spell that out (since the docs aren't very explicit), the value of "15" is the combination of the following flags: SND_RX_SEQ (1) - Starts the data receiver. SND_TX_SEQ (2) - Starts the data transmitter ("sender"). MBR_RX_SEQ (4) - Starts the membership receiver ("listener"). MBR_TX_SEQ (8) - Starts the membership transmitter ("broadcaster"). |= 15 (0xf) I'm curious why, if one is using static membership, are the membership transmitter and receiver flags required? It seems to be that the membership should remain static and therefore no membership comms shuould be required. Are those important to ensure that the cluster members (through static) are actually present during operation? -chris > 2022年1月31日(月) 16:47 Alan F <shiva...@hotmail.com>: > >> OK with your advice I tried what I thought would work from example >> and doesn't at all. The old example below works but this doesn’t even >> detect members. >> >> Below is example to which Im using on both nodes which are remote to >> eachother. >> >> >> <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" >> channelSendOptions="8" channelStartOptions = "3"> >> <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.StaticMembershipService"> >> <Member >> className="org.apache.catalina.tribes.membership.StaticMember" >> port="4110" >> host="local-tomcat" >> domain="tomcat-pc2" >> >> uniqueId="{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0}" /> >> <Member >> className="org.apache.catalina.tribes.membership.StaticMember" >> port="4110" >> host="remote-tomcat" >> domain="tomcat-pc2" >> >> uniqueId="{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}" /> >> </Membership> >> >> <Receiver >> className="org.apache.catalina.tribes.transport.nio.NioReceiver" >> address="local-tomcat" >> port="4110" >> autoBind="9" >> selectorTimeout="2000" >> 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.TcpPingInterceptor" >> staticOnly="true"/> >> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector" >> /> >> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.MessageDispatchInterceptor"/> >> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/> >> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor"> >> </Interceptor> >> >> </Channel> >> >> <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" >> filter=""/> >> <Valve >> className="org.apache.catalina.ha.session.JvmRouteBinderValve"/> >> >> <Deployer >> className="org.apache.catalina.ha.deploy.FarmWarDeployer" >> tempDir="/opt/tomcat/war-temp/" >> deployDir="/opt/tomcat/war-deploy/" >> watchDir="/opt/tomcat/war-listen/" >> watchEnabled="true"/> >> <ClusterListener >> className="org.apache.catalina.ha.session.ClusterSessionListener"/> >> </Cluster> >> >> >> -----Original Message----- >> From: Mark Thomas <ma...@apache.org> >> Sent: 28 January 2022 18:15 >> To: users@tomcat.apache.org >> Subject: Re: Tomcat 9 Session replication >> >> On 28/01/2022 17:05, Alan F wrote: >>> We are currently getting traffic from all cluster members in other >> environments using .staticmember opposed to multicast can I confirm >> why this is see below. >>> >>> What do we need to set here for a clustered pair to make them unique >>> and talk to eachother only without seeing traffic from other members >>> in Catalina.out >>> >>> This is how they are currently configured as you can see only >>> difference >> between nodes is the receiver and member ips are reversed. Im >> concerned uniqueID is the same, do we also need to specify domain? >> >> uniqueID should be unique at least within the subnet, ideally globally. >> >> Yes, you should use a separate domain for each cluster. >> >> Looking at your config: >> >> You are missing the local member definition >> https://tomcat.apache.org/tomcat-10.0-doc/config/cluster-interceptor. >> html#Static_Membership >> >> The deployer should be defined under the cluster, not under an interceptor. >> >> Mark >> >>> >>> WE have hostname A and B if you could check below: >>> >>> HOSTNAME A config >>> >>> <!-- >>> <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> >>> --> >>> >>> <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"> >>> <Sender >> className="org.apache.catalina.tribes.transport.ReplicationTransmitte >> r"> >>> <Transport >> className="org.apache.catalina.tribes.transport.nio.PooledParallelSen >> der" /> >>> </Sender> >>> <Receiver >>> address="hostnameA" >>> autoBind="0" >>> >> className="org.apache.catalina.tribes.transport.nio.NioReceiver" >>> maxThreads="6" >>> port="4100" >>> selectorTimeout="5000" >>> /> >>> <!-- <Interceptor >> className="com.dm.tomcat.interceptor.DisableMulticastInterceptor" /> >> --> >>> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.TcpPingInterceptor" >> staticOnly="true"/> >>> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector" >> /> >>> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.StaticMember >> shipInterceptor"> >>> <Member >>> >> className="org.apache.catalina.tribes.membership.StaticMember" >>> port="4100" >>> host="HostnameB" >>> uniqueId="{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1}" >>> /> >>> <Deployer >> className="org.apache.catalina.ha.deploy.FarmWarDeployer" >>> tempDir="/opt/tomcat/war-temp/" >>> deployDir="/opt/tomcat/war-deploy/" >>> watchDir="/opt/tomcat/war-listen/" >>> watchEnabled="true"/> >>> >>> </Interceptor> >>> <Interceptor >> className="org.apache.catalina.tribes.group.interceptors.MessageDispatchInterceptor" >> /> >>> </Channel> >>> <Valve >>> >>> -------------------------------------------------------------------- >>> - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >>> For additional commands, e-mail: users-h...@tomcat.apache.org >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
