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Failure while joining jboss cache group/cluster
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created by <a href="http://community.jboss.org/people/rajsjha">raj jha</a> in <i>JBoss Cache</i> - <a href="http://community.jboss.org/message/564567#564567">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Am using jboss cache in clustered way to be used accross the applications deployed on same or deiiferent jboss AS.</p><p>Same multicast ip address is being used to connect to the group (cluster for caching service). This connection to the jboss caching service happens while application bootstraps.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The problem occurs when one of the node (application/jboss AS) is restarted and it tries to join the group again for caching service. It hangs at this point and application does not come up. I could see the jboss AS pinging again and again to get the access to the group but fails.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Following is the configuration with which all application starts up and forms a cluster with given multicast IP address.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><attribute name="ClusterConfig"><br/>            <config><br/><span>                <!-- Transport protocol: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsUDP" target="_blank">http://wiki.jboss.org/wiki/JGroupsUDP</a><span> --></span><br/>                <UDP mcast_addr="239.xxx.xxx.x" mcast_port="9011" ip_ttl="1" ip_mcast="true" mcast_send_buf_size="150000"<br/>                    mcast_recv_buf_size="80000" ucast_send_buf_size="150000" ucast_recv_buf_size="80000" loopback="false" /><br/><span>                <!-- Discovery protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsPING" target="_blank">http://wiki.jboss.org/wiki/JGroupsPING</a><span> --></span><br/>                <PING timeout="2000" num_initial_members="3" up_thread="false" down_thread="false" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!--  Merging Protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsMERGE2" target="_blank">http://wiki.jboss.org/wiki/JGroupsMERGE2</a><span>  --></span><br/>                <MERGE2 min_interval="10000" max_interval="20000" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Failure Detection Protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsFD_SOCK" target="_blank">http://wiki.jboss.org/wiki/JGroupsFD_SOCK</a><span> --></span><br/>                <FD_SOCK /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Failure Detection Protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsVERIFY_SUSPECT" target="_blank">http://wiki.jboss.org/wiki/JGroupsVERIFY_SUSPECT</a><span> --></span><br/>                <VERIFY_SUSPECT timeout="1500" up_thread="false" down_thread="false" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Reliable Message Transmission Protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsPbcastNAKACK" target="_blank">http://wiki.jboss.org/wiki/JGroupsPbcastNAKACK</a><span> --></span><br/>                <pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800" max_xmit_size="8192" up_thread="false"<br/>                    down_thread="false" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Reliable Message Transmission Protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsUNICAST--" target="_blank">http://wiki.jboss.org/wiki/JGroupsUNICAST--</a><span>></span><br/>                <UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10" down_thread="false" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Reliable Message Transmission Protocols: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsPbcastSTABLE" target="_blank">http://wiki.jboss.org/wiki/JGroupsPbcastSTABLE</a><span> --></span><br/>                <pbcast.STABLE desired_avg_gossip="20000" up_thread="false" down_thread="false" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Group membership protocol: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsPbcastGMS" target="_blank">http://wiki.jboss.org/wiki/JGroupsPbcastGMS</a><span> --></span><br/>                <pbcast.GMS join_timeout="5000" join_retry_timeout="2000" shun="true" print_local_addr="true" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- Fragmentation protocol: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsFRAG" target="_blank">http://wiki.jboss.org/wiki/JGroupsFRAG</a><span> --></span><br/>                <FRAG frag_size="8192" down_thread="false" up_thread="true" /></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>                <!-- State tranfer protocol: </span><a class="jive-link-external-small" href="http://wiki.jboss.org/wiki/JGroupsPbcastSTATE_TRANSFER" target="_blank">http://wiki.jboss.org/wiki/JGroupsPbcastSTATE_TRANSFER</a><span> --></span><br/>                <pbcast.STATE_TRANSFER up_thread="true" down_thread="true" /><br/>            </config><br/>        </attribute></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Below is what i could see in logs:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText">"ScannerThread" daemon prio=1 tid=0x0000002afedfe570 nid=0x48aa in Object.wait() [0x000000004175f000..0x0000000041766b30]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at java.lang.Object.wait(Native Method)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>- waiting on <0x0000002aa809b708> (a org.jgroups.util.Promise)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at java.lang.Object.wait(Object.java:474)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at org.jgroups.util.Promise.doWait(Promise.java:100)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at org.jgroups.util.Promise._getResultWithTimeout(Promise.java:52)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at org.jgroups.util.Promise.getResultWithTimeout(Promise.java:28)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>- locked <0x0000002aa809b708> (a org.jgroups.util.Promise)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at org.jgroups.util.Promise.getResult(Promise.java:77)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>at org.jgroups.JChannel.connect(JChannel.java:420)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="MsoPlainText"><span>        </span>- locked <0x0000002aa6952538> (a org.jgroups.JChannel)</p><p><span style="font-size: 11pt; font-family: &quot;Calibri&quot;,&quot;sans-serif&quot;;"><span>        </span>at org.jboss.cache.TreeCache.startService(TreeCache.java:1482)</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 11pt; font-family: &quot;Calibri&quot;,&quot;sans-serif&quot;;">Please suggest if am doing something problmatic.<br/></span></p></div>
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