I am using JBoss 4.0.3SP1 (shipped with JGroups 2.2.7) to combine a cluster
with 3 nodes on Win 2003, basing on JDK1.4.2_17.
I configured a TCP stack for underlying communication. Both in
cluster-service.xml & tc5-cluster-service.xml. See following:
<Config>
| <TCP bind_addr="10.200.**.1" start_port="7800" loopback="true"/>
| <TCPPING
initial_hosts="10.200.**.1[7800],10.200.**.2[7800],10.200.**.3[7800]"
port_range="3" timeout="10000"
| num_initial_members="3" up_thread="true" down_thread="true"/>
| <MERGE2 min_interval="5000" max_interval="10000"/>
| <FD shun="false" timeout="15000" max_tries="5" up_thread="true"
down_thread="true" />
| <VERIFY_SUSPECT timeout="1500" down_thread="false"
up_thread="false" />
| <pbcast.NAKACK down_thread="true" up_thread="true" gc_lag="100"
| retransmit_timeout="3000"/>
| <pbcast.STABLE desired_avg_gossip="20000" down_thread="false"
up_thread="false" />
| <pbcast.GMS join_timeout="5000" join_retry_timeout="2000"
shun="false"
| print_local_addr="true" down_thread="true" up_thread="true"/>
| <pbcast.STATE_TRANSFER up_thread="true" down_thread="true"/>
| </Config>
The problem is, if I turn off one server(say,node B) and restart it
immediately, there are ERROR messages:
on the B side:
09:07:08|ERROR [ParticipantGmsImpl] handleJoinResponse() should not be invoked
on an instance of org.jgroups.protocols.pbcast.participantGmsImpl
and after a while also:
ERROR [GMS] [B:7800(additional data:18bytes)] received view <= current view;
discarding it (current vid:[A:7800(additional data:18bytes)|2],new
vid:[A:7800(additional data:18bytes)|2])
on the A side:
09:07:03|ERROR[CoordGmsImp] memeber B:7800 already present; return existing
view [A:7800,B:7800]
| 09:07:07|ERROR[GMS][A:7800] received view<=current view;descarding
it(current vid:[A:7800|1], new vid:[B:7800|1])
After B started up, from the web console, I can see that B joined the cluster
view. Is it a proper cluster? Could I just ignore these Error messages? It
would be great if someone could explain that what do these error messages mean
exactly. What happened behind?
Is it typical reincarnation error?
Is there some solution to solve this problem? it happens a lot and really
annoys me.
My solution(it works sometimes but looks stupid):
After I turn off one node, I wait for about 4 minutes, then restart it. The
Error messages don't show up anymore.
Thanks for any idea.
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