Hi All, I'm having some problems configuring jgroups failure detection. I'm using jBoss JBoss [Zion] 4.0.5.GA (build: CVSTag=Branch_4_0 date=200610162339) and jgroups 2.2.9 beta2. My setup consists of 2 nodes, each with 8 interfaces, paired into 4 redundant groups per node. | | | | App 1 | App 1 | | | | ----------------- ----------------- | App 3 | | Mgmt | | App3 | ------| NODE 1 |---------------| NODE 2 |------- | | | | | | ----------------- ----------------- | | | | | | | | Database | | --------------------------------- I've used the -b option to bind all traffic to the management lan, and tweaked my application to bind only to the App 1 LAN. What I'm now trying to do is have the healthcheck/failure detection run explicitly over the Database LAN. I've editted my cluster-service.xml file, which looks like this (editted for brevity): <Config> | <UDP mcast_addr="${jboss.partition.udpGroup:228.1.2.3}" mcast_port="45566" | ip_ttl="${jgroups.mcast.ip_ttl:8}" ip_mcast="true" | mcast_recv_buf_size="2000000" mcast_send_buf_size="640000" | ucast_recv_buf_size="2000000" ucast_send_buf_size="640000" | loopback="false"/> | <PING timeout="2000" num_initial_members="3" | up_thread="true" down_thread="true"/> | <MERGE2 min_interval="10000" max_interval="20000"/> | <FD_SOCK srv_sock_bind_addr="192.168.104.56" down_thread="false" up_thread="false"/> | <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" down_thread="true"/> | <pbcast.STABLE desired_avg_gossip="20000" max_bytes="400000" | 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> This is the config on Node 2 - 192.168.104.56 is this nodes VIP for the database interface. I have removed the standard FD algorithm, as it was failing to detect a failure when the database connection was broken (Based on what I read here http://www.redhat.com/docs/manuals/jboss/jboss-eap-4.2/doc/Server_Configu... - "Regular traffic from a node counts as if it is a live. So, the are-you-alive messages are only sent when there is no regular traffic to the node for sometime." - I assumed it must have seen other jGroups traffic across the management LAN and so counted it as alive). The problem is that now the second node detects a failure correctly and sets itself to the master node, but getCurrentView() is still returning two nodes: Fri Jul 20 14:34:17 BST 2007 MasterNode=true 192.168.105.158:1099 192.168.105.155:1099 (192.168.105.158 & 192.168.105.155 are the Management interfaces for Nodes 1 & 2 respecively) What's interesting is when I plugged Node 1 back in, Node 2 breifly removed it from the partition before merging it back in: Fri Jul 20 14:35:05 BST 2007 MasterNode=true 192.168.105.158:1099 192.168.105.155:1099 | Fri Jul 20 14:35:11 BST 2007 MasterNode=true 192.168.105.158:1099 192.168.105.155:1099 | Fri Jul 20 14:35:16 BST 2007 MasterNode=true 192.168.105.155:1099 | Fri Jul 20 14:35:22 BST 2007 MasterNode=true 192.168.105.155:1099 192.168.105.158:1099 | Fri Jul 20 14:35:29 BST 2007 MasterNode=true 192.168.105.155:1099 192.168.105.158:1099 Any advice or assistance would be greatly appreciated! Kind Regards, Neil Saunders. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4066233#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...