Clustering problem
earniedyke Aug 11, 2006 10:00 AMGreetings all.
We have two nodes, each on its own Win 2000 server, in our production environment. A couple of weeks ago we had to reboot the servers and restart the JBoss instances. Both instances started fine but they no longer see each other as a cluster. No changes where made to cluster-service.xml on either server. I can't seem to find out why they can't see each other anymore. Here is a snipet from cluster-service.xml:
<attribute name="PartitionConfig"> <Config> <!-- UDP: if you have a multihomed machine, set the bind_addr attribute to the appropriate NIC IP address --> <!-- UDP: On Windows machines, because of the media sense feature being broken with multicast (even after disabling media sense) set the loopback attribute to true --> <!--UDP mcast_addr="228.1.2.3" mcast_port="45566"--> <UDP mcast_addr="228.1.2.1" mcast_port="45566" ip_ttl="32" ip_mcast="true" mcast_send_buf_size="800000" mcast_recv_buf_size="150000" ucast_send_buf_size="800000" ucast_recv_buf_size="150000" loopback="true" /> <PING timeout="2000" num_initial_members="3" up_thread="true" down_thread="true" /> <MERGE2 min_interval="10000" max_interval="20000" /> <FD shun="true" up_thread="true" down_thread="true" timeout="2500" max_tries="5" /> <VERIFY_SUSPECT timeout="3000" num_msgs="3" up_thread="true" down_thread="true" /> <pbcast.NAKACK gc_lag="50" retransmit_timeout="300,600,1200,2400,4800" max_xmit_size="8192" up_thread="true" down_thread="true" /> <UNICAST timeout="300,600,1200,2400,4800" window_size="100" min_threshold="10" down_thread="true" /> <pbcast.STABLE desired_avg_gossip="20000" up_thread="true" down_thread="true" /> <FRAG frag_size="8192" down_thread="true" up_thread="true" /> <pbcast.GMS join_timeout="5000" join_retry_timeout="2000" shun="true" print_local_addr="true" /> <pbcast.STATE_TRANSFER up_thread="true" down_thread="true" /> </Config> </attribute>
Note the mcast_addr is 228.1.2.1. I tried executing the Draw demo program to test things, one instance on each server, and nothing was shared. I did notice however that in the log that is displayed by the Draw program the mcast_addr=228.8.8.8. It was the same on both servers.
I am at a loss and am looking for any and all suggestions.
Thanks in advance!!!
Earnie!