Coherence cluster interference

####<Dec 28, 2011 12:32:51 PM CET> <Warning> <Coherence> <acme102> <osbdv1ms1> <Logger@1780819408 3.6.0.4> <<anonymous>> <> <0000JI4RpfkE8Tk5ozx0iY1Eyjr6000002> <1325071971843> <BEA-000000> <Oracle Coherence 3.6.0.4 (member=n/a): Received a discovery message that indicates the presence of an existing cluster that does not respond to join requests; this is usually caused by a network layer failure:
Message "SeniorMemberHeartbeat"
{
FromMember=Member(Id=1, Timestamp=2011-11-24 15:56:30.477, Address=13.53.53.189:7890, MachineId=14269, Location=process:26431, Role=OSB-node)
FromMessageId=0
Internal=false
MessagePartCount=1
PendingCount=0
MessageType=17
ToPollId=0
Poll=null
Packets
{
[000]=Broadcast{PacketType=0x0DDF00D2, ToId=0, FromId=1, Direction=Incoming, ReceivedMillis=12:32:51.842, MessageType=17, ServiceId=0, MessagePartCount=1, MessagePartIndex=0, Body=0}
}
Service=ClusterService{Name=Cluster, State=(SERVICE_STARTED, STATE_ANNOUNCE), Id=0, Version=3.6}
ToMemberSet=null
NotifySent=false

LastRecvTimestamp=none
MemberSet=MemberSet(Size=1, BitSetCount=1, ids=[1])
}>


https://forums.oracle.com/forums/thread.jspa?threadID=1068440


we need either to add

-Dtangosol.coherence.wka=localhost -Dtangosol.coherence.ttl=0 -Dtangosol.coherence.localhost=127.0.0.1

to the JVM parameters, or make sure each installation has a unique Coherence cluster multicast address


If you get forever this message:
"Delaying formation of a new cluster; waiting for well-known nodes to respond"

read here: http://docs.oracle.com/cd/E24290_01/coh.371/e22837/cluster_setup.htm#CEGGHCAB

then remove the wka option and use an explicit address:
-Dtangosol.coherence.clusteraddress=224.3.6.0 -Dtangosol.coherence.clusterport=3059