I recently begin enabling WADI clustering in our test environment with two
Apache Geronimo Nodes behind a load balancer. My current setup does not
have sticky sessions enabled. It seems to be working well until I start
throwing a large load at the nodes. I start receiving the following errors:
2009-09-01 15:05:03,415 INFO [JkCoyoteHandler] Error servicing request R(
/login.action)
org.codehaus.wadi.replication.manager.ReplicationKeyNotFoundException: Key
[F78530ECFF88F89F042C8590E68E59DE] does not exist
at
org.codehaus.wadi.replication.manager.basic.SyncReplicationManager.update(SyncReplicationManager.java:147)
at
org.codehaus.wadi.core.session.AbstractReplicableSession.onEndProcessing(AbstractReplicableSession.java:49)
at
org.codehaus.wadi.core.session.AtomicallyReplicableSession.onEndProcessing(AtomicallyReplicableSession.java:58)
at
org.apache.geronimo.clustering.wadi.WADISessionAdaptor.onEndAccess(WADISessionAdaptor.java:63)
at
org.apache.geronimo.tomcat.cluster.ClusteredManager$ClusteredSession.endAccess(ClusteredManager.java:127)
at org.apache.catalina.connector.Request.recycle(Request.java:419)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:322)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:637)
Even after the heaving activity is over the nodes are unable to recover. I
have to restart both geronimo nodes before the cluster functions correctly
again. Has anyone else run into this and if have you resolved it?
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