Oracle Coherence 3.7.1, It's always creating a new cluster in linux m/c.

Question

Hi ,
I am facing an issue with Oracle Coherence 3.7.1 in linux m/c , where it’s always creating a new cluster, even if I start a new member provided with same cluster name as argument. -Dtangosol.coherence.cluster=name
It’s not joining the existing cluster , it’s always creating a new cluster with same name in Linux m/c.
But when I tried the same thing in windows m/c , it working fine , even If I start N number cache server’s it joining the same cluster as one more member.
Please someone help me, why it’s always creating a new cluster in linux m/c with same name ? why new VM’s are not joining the existing cluster? , Is there anything extra setup I need to do for Linux m/c.
Thanks in Advance.
<coherence>
<cluster-config>
<member-identity>
<cluster-name>My_cluster</cluster-name>
</member-identity>
</cluster-config>
<configurable-cache-factory-config>
<init-params>
<init-param>
<param-type>java.lang.String</param-type>
<param-value system-property="tangosol.coherence.cacheconfig">coherence-cache-config.xml</param-value>
</init-param>
</init-params>
</configurable-cache-factory-config>
</coherence>
12-10-01 10:20:06.544/0.420 Oracle Coherence 3.7.1.0 <Info> (thread=main, member=n/a): Loaded operational configuration from "jar:file:/data/Informatica/nas/sdgshared/MyApputils/coherence/lib/coherence.jar!/tangosol-coherence.xml"
2012-10-01 10:20:06.608/0.484 Oracle Coherence 3.7.1.0 <Info> (thread=main, member=n/a): Loaded operational overrides from "jar:file:/data/Informatica/nas/sdgshared/MyApputils/coherence/lib/coherence.jar!/tangosol-coherence-override-dev.xml"
2012-10-01 10:20:06.609/0.485 Oracle Coherence 3.7.1.0 <Info> (thread=main, member=n/a): Loaded operational overrides from "jar:file:/data/Informatica/nas/sdgshared/MyApputils/coherence/MyAppCache/lib/MyAppCoherenceCache.jar!/tangosol-coherence-override.xml"
2012-10-01 10:20:06.613/0.489 Oracle Coherence 3.7.1.0 <D5> (thread=main, member=n/a): Optional configuration override "/custom-mbeans.xml" is not specified
Oracle Coherence Version 3.7.1.0 Build 27797
Grid Edition: Development mode
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
2012-10-01 10:20:06.831/0.707 Oracle Coherence GE 3.7.1.0 <Info> (thread=main, member=n/a): Loaded cache configuration from "file:/data/Informatica/nas/sdgshared/MyApputils/coherence/MyAppCache/config/coherence-cache-config.xml"; this document does not refer to any schema definition and has not been validated.
2012-10-01 10:20:07.328/1.204 Oracle Coherence GE 3.7.1.0 <D4> (thread=main, member=n/a): TCMP bound to /10.176.4.105:8088 using SystemSocketProvider
2012-10-01 10:20:10.711/4.587 Oracle Coherence GE 3.7.1.0 <Info> (thread=Cluster, member=n/a): Created a new cluster "MyCache_cluster" with Member(Id=1, Timestamp=2012-10-01 10:20:07.397, Address=10.176.4.105:8088, MachineId=44371, Location=site:,machine:ctrel9014-12,process:19922, Role=CoherenceServer, Edition=Grid Edition, Mode=Development, CpuCount=16, SocketCount=4) UID=0x0AB004690000013A1CE9ADE5AD531F98
2012-10-01 10:20:10.713/4.589 Oracle Coherence GE 3.7.1.0 <Info> (thread=main, member=n/a): Started cluster Name=MyCache_cluster
Group{Address=224.3.7.0, Port=37000, TTL=4}
MasterMemberSet(
ThisMember=Member(Id=1, Timestamp=2012-10-01 10:20:07.397, Address=10.176.4.105:8088, MachineId=44371, Location=site:,machine:ctrel9014-12,process:19922, Role=CoherenceServer)
OldestMember=Member(Id=1, Timestamp=2012-10-01 10:20:07.397, Address=10.176.4.105:8088, MachineId=44371, Location=site:,machine:ctrel9014-12,process:19922, Role=CoherenceServer)
ActualMemberSet=MemberSet(Size=1
Member(Id=1, Timestamp=2012-10-01 10:20:07.397, Address=10.176.4.105:8088, MachineId=44371, Location=site:,machine:ctrel9014-12,process:19922, Role=CoherenceServer)
MemberId|ServiceVersion|ServiceJoined|MemberState
1|3.7.1|2012-10-01 10:20:10.711|JOINED
RecycleMillis=1200000
RecycleSet=MemberSet(Size=0
TcpRing{Connections=[]}
IpMonitor{AddressListSize=0}
2012-10-01 10:20:10.736/4.612 Oracle Coherence GE 3.7.1.0 <D5> (thread=Invocation:Management, member=1): Service Management joined the cluster with senior service member 1
2012-10-01 10:20:10.918/4.794 Oracle Coherence GE 3.7.1.0 <D5> (thread=DistributedCache:HBaseMyCache, member=1): Service HBaseMyCache joined the cluster with senior service member 1
2012-10-01 10:20:10.942/4.818 Oracle Coherence GE 3.7.1.0 <Info> (thread=main, member=1):
Edited by: user10092089 on Oct 2, 2012 8:35 AM

Answer 1

Hi,
For unicast, you need to define the override file as under:
<?xml version='1.0'?>
<coherence>
     <cluster-config>
          <member-identity>
               <cluster-name system-property="tangosol.coherence.cluster">LPACache_cluster</cluster-name>
          </member-identity>
          <unicast-listener>
              <well-known-addresses>
               <socket-address id="1">
                   <address system-property="tangosol.coherence.wka1">coherence-node1-ip</address>
                   <port system-property="tangosol.coherence.wka1.port"> coherence-node1-port</port>
               </socket-address>
               <socket-address id="2">
                   <address system-property="tangosol.coherence.wka2"> coherence-node2-ip </address>
                   <port system-property="tangosol.coherence.wka2.port"> coherence-node2-port</port>
               </socket-address>
              </well-known-addresses>
          <port-auto-adjust system-property="tangosol.coherence.localport.adjust">false</port-auto-adjust>
          </unicast-listener>
     </cluster-config>
     <configurable-cache-factory-config>
           <class-name>com.tangosol.net.DefaultConfigurableCacheFactory</class-name>
           <init-params>
              <init-param>
                  <param-type>java.lang.String</param-type>
                  <param-value system-property="tangosol.coherence.cacheconfig">coherence-cache-config.xml</param-value>
              </init-param>
          </init-params>
    </configurable-cache-factory-config>   
    <logging-config>
           <severity-level system-property="tangosol.coherence.log.level">5</severity-level>
           <character-limit system-property="tangosol.coherence.log.limit">0</character-limit>
    </logging-config>
</coherence>Use the property -Dtangosol.coherence.localhost=coherence-node1-ip and -Dtangosol.coherence.localport=coherence-node1-port for coherence server1 and -Dtangosol.coherence.localhost=coherence-node2-ip and -Dtangosol.coherence.localport=coherence-node2-port for Coherence server 2. Once you start the servers with these changes, you should not see the below message:
Group{Address=224.3.7.0, Port=37000, TTL=4}
HTH
Cheers,
_NJ