[infinispan-issues] [JBoss JIRA] (ISPN-2836) org.jgroups.TimeoutException after invoking MapCombineCommand in Map/Reduce task with 2 nodes

[Mircea Markus (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-2836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mircea Markus updated ISPN-2836:
--------------------------------

    Labels: onboard  (was: )

    
> org.jgroups.TimeoutException after invoking MapCombineCommand in Map/Reduce task with 2 nodes
> ---------------------------------------------------------------------------------------------
>
>                 Key: ISPN-2836
>                 URL: https://issues.jboss.org/browse/ISPN-2836
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Execution and Map/Reduce
>    Affects Versions: 5.2.1.Final
>            Reporter: Alan Field
>            Assignee: Vladimir Blagojevic
>              Labels: onboard
>             Fix For: 5.3.0.Final
>
>         Attachments: afield-tcp-521-final.txt, udp-edg-perf01.txt, udp-edg-perf02.txt
>
>
> Using RadarGun and two nodes to execute the example WordCount Map/Reduce job against a cache with ~550 keys with a value size of 1MB is producing a thread deadlock. The cache is distributed with transactions disabled. 
> TCP transport deadlocks without throwing an exception. Disabling the send queue and setting UNICAST2.conn_expiry_timeout=0 prevents the deadlock, but the job does not complete. The nodes send "are-you-alive" messages back and forth, and I have seen the following exception:
> {noformat}
> 11:44:29,970 ERROR [org.jgroups.protocols.TCP] (OOB-98,default,edg-perf01-1907) failed sending message to edg-perf02-32536 (76 bytes): java.net.SocketException: Socket closed, cause: null
>         at org.infinispan.distexec.mapreduce.MapReduceTask.execute(MapReduceTask.java:352)
>         at org.radargun.cachewrappers.InfinispanMapReduceWrapper.executeMapReduceTask(InfinispanMapReduceWrapper.java:98)
>         at org.radargun.stages.MapReduceStage.executeOnSlave(MapReduceStage.java:74)
>         at org.radargun.Slave$2.run(Slave.java:103)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: java.util.concurrent.ExecutionException: org.infinispan.CacheException: org.jgroups.TimeoutException: timeout sending message to edg-perf02-32536
>         at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>         at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>         at org.infinispan.distexec.mapreduce.MapReduceTask$TaskPart.get(MapReduceTask.java:832)
>         at org.infinispan.distexec.mapreduce.MapReduceTask.executeMapPhaseWithLocalReduction(MapReduceTask.java:477)
>         at org.infinispan.distexec.mapreduce.MapReduceTask.execute(MapReduceTask.java:350)
>         ... 9 more
> Caused by: org.infinispan.CacheException: org.jgroups.TimeoutException: timeout sending message to edg-perf02-32536
>         at org.infinispan.util.Util.rewrapAsCacheException(Util.java:541)
>         at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommand(CommandAwareRpcDispatcher.java:186)
>         at org.infinispan.remoting.transport.jgroups.JGroupsTransport.invokeRemotely(JGroupsTransport.java:515)
> 11:44:29,978 ERROR [org.jgroups.protocols.TCP] (Timer-3,default,edg-perf01-1907) failed sending message to edg-perf02-32536 (60 bytes): java.net.SocketException: Socket closed, cause: null
>         at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:175)
>         at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:197)
>         at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:254)
>         at org.infinispan.remoting.rpc.RpcManagerImpl.access$000(RpcManagerImpl.java:80)
>         at org.infinispan.remoting.rpc.RpcManagerImpl$1.call(RpcManagerImpl.java:288)
>         ... 5 more
> Caused by: org.jgroups.TimeoutException: timeout sending message to edg-perf02-32536
>         at org.jgroups.blocks.MessageDispatcher.sendMessage(MessageDispatcher.java:390)
>         at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.processSingleCall(CommandAwareRpcDispatcher.java:301)
> 11:44:29,979 ERROR [org.jgroups.protocols.TCP] (Timer-4,default,edg-perf01-1907) failed sending message to edg-perf02-32536 (63 bytes): java.net.SocketException: Socket closed, cause: null
>         at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommand(CommandAwareRpcDispatcher.java:179)
>         ... 11 more
> {noformat}
> With UDP transport, both threads are deadlocked. I will attach thread dumps from runs using TCP and UDP transport.

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