Sandeep, is this the only error you are seeing in the logs? This one isn't very helpful I'm afraid...

Could you either upload your test code or run the test again with TRACE logging enabled for the org.infinispan category and upload the (zipped) log?

We are seeing the similar issue in 5.1.3.Final. I posted exception  in other thread.

In our case, later on we see OutOfMemoryError from RpcManagerImpl:

2012-04-20/22:13:53.821/EDT [transport-thread-2] ERROR org.infinispan.remoting.rpc.RpcManagerImpl[156] - ISPN000073: Unexpected error while replicating

java.lang.OutOfMemoryError: Java heap space

What casue this OutOfMemoryError?

The JVM has a big heap space in this case.

Here is the exception we have:

2012-04-20/21:31:49.397/EDT [CacheViewTrigger,node1-x] ERROR org.infinispan.cacheviews.CacheViewInfo[143] - ISPN000164: Rolling back to cache view 54, but last committed view is 57

2012-04-20/21:56:39.586/EDT [CacheViewInstaller-6,node1-x] ERROR org.infinispan.cacheviews.CacheViewsManagerImpl[264] - ISPN000172: Failed to prepare view CacheView{viewId=69, members=[node2-x, node1-x} for cache  session, rolling back to view CacheView{viewId=58, members=[node1-x]}

java.util.concurrent.TimeoutException

        at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:258)

        at java.util.concurrent.FutureTask.get(FutureTask.java:119)

        at org.infinispan.cacheviews.CacheViewsManagerImpl.clusterPrepareView(CacheViewsManagerImpl.java:322)

        at org.infinispan.cacheviews.CacheViewsManagerImpl.clusterInstallView(CacheViewsManagerImpl.java:250)

        at org.infinispan.cacheviews.CacheViewsManagerImpl$ViewInstallationTask.call(CacheViewsManagerImpl.java:876)

        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)

        at java.util.concurrent.FutureTask.run(FutureTask.java:166)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

        at java.lang.Thread.run(Thread.java:722)

2012-04-20/22:02:37.989/EDT [CacheViewInstaller-6,node1-x] ERROR org.infinispan.cacheviews.CacheViewInfo[143] - ISPN000164: Rolling back to cache view 58, but last committed view is 72

2012-04-20/22:07:49.216/EDT [CacheViewInstaller-9,node1-x] ERROR org.infinispan.cacheviews.CacheViewsManagerImpl[264] - ISPN000172: Failed to prepare view CacheView{viewId=74, members=[node2-x, node1-x]} for cache  session, rolling back to view CacheView{viewId=73, members=node1-x]}

java.util.concurrent.TimeoutException

        at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:258)

        at java.util.concurrent.FutureTask.get(FutureTask.java:119)

        at org.infinispan.cacheviews.CacheViewsManagerImpl.clusterPrepareView(CacheViewsManagerImpl.java:322)

        at org.infinispan.cacheviews.CacheViewsManagerImpl.clusterInstallView(CacheViewsManagerImpl.java:250)

        at org.infinispan.cacheviews.CacheViewsManagerImpl$ViewInstallationTask.call(CacheViewsManagerImpl.java:876)

        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)

        at java.util.concurrent.FutureTask.run(FutureTask.java:166)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

        at java.lang.Thread.run(Thread.java:722)

2012-04-20/22:13:53.821/EDT [transport-thread-2] ERROR org.infinispan.remoting.rpc.RpcManagerImpl[156] - ISPN000073: Unexpected error while replicating

java.lang.OutOfMemoryError: Java heap space

        at org.infinispan.io.ExposedByteArrayOutputStream.write(ExposedByteArrayOutputStream.java:91)

        at org.jboss.marshalling.OutputStreamByteOutput.write(OutputStreamByteOutput.java:56)

        at org.jboss.marshalling.SimpleDataOutput.flush(SimpleDataOutput.java:311)

        at org.jboss.marshalling.SimpleDataOutput.finish(SimpleDataOutput.java:353)

        at org.jboss.marshalling.AbstractMarshaller.finish(AbstractMarshaller.java:134)

        at org.infinispan.marshall.jboss.ExtendedRiverMarshaller.finish(ExtendedRiverMarshaller.java:47)

        at org.infinispan.marshall.jboss.AbstractJBossMarshaller.finishObjectOutput(AbstractJBossMarshaller.java:116)

        at org.infinispan.marshall.VersionAwareMarshaller.finishObjectOutput(VersionAwareMarshaller.java:

Dex, if you get any OOME, add these options to generate a heap dump:

JAVA_OPTS="$JAVA_OPTS -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp/java_heap"

or

JAVA_OPTS="$JAVA_OPTS -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/Users/z/Tmp/java_heap"

We can then take the dump (from dropbox?) and analise it. Thx