Error in coherence-- stopping cluster service.

Question

i do have found the error in one of my coherence server log files can some one explain me what does it mean?
Coherence Logger@9272718 3.4.2/411 ERROR 2009-06-01 16:08:31.396/1217.130 Oracle Coherence GE 3.4.2/411 <Error> (thread=Cluster, member=3): Received cluster heartbeat from the senior Member(Id=7, Timestamp=2009-04-24 12:29:25.802, Address=xx.xxx.xx.xxx:8093, MachineId=55400, Location=machine:server72,process:11324, Role=WeblogicServer) that does not contain this Member(Id=3, Timestamp=2009-06-01 15:48:09.18, Address=xx.xxx.xxx.xx:8091, MachineId=47428, Location=site:ops.company.org,machine:cohserverbox1,process:14401, Role=CoherenceServer); stopping cluster service.
Thanks Much

Answer 1

Hi,
This error essentially means what it says: The process received a cluster heartbeat that did not include the process as a member of the cluster. The process, therefore, stops its cluster service and will attempt to join the cluster again when appropriate. There are few reasons that the senior member may not have included the process in its heartbeat. Based on the timestamps and roles, I would first want to confirm the intent to cluster these processes. If the intent is not to cluster these processes, I would adjust their configurations appropriately (eg. use a distinct port) to form separate clusters. If the intent is to cluster these processes and the error (with the timestamp spread) reproduces, I would want to examine the network topology and look for reasons the members are being dropped from the cluster.
Regards,
Harv