[jboss-jira] [JBoss JIRA] Commented: (JGRP-616) NullPointerException in Multiplexer.java

[Vladimir Blagojevic (JIRA)]

    [ http://jira.jboss.com/jira/browse/JGRP-616?page=comments#action_12385904 ] 
            
Vladimir Blagojevic commented on JGRP-616:
------------------------------------------

Hey,

But where are you fetching state? There should be explicit call to either Channel#getState(Address target, long timeout) or a new Channel#connect(String cluster_name, Address target, String state_id, long timeout)!

Regards.



> NullPointerException in Multiplexer.java
> ----------------------------------------
>
>                 Key: JGRP-616
>                 URL: http://jira.jboss.com/jira/browse/JGRP-616
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.6
>         Environment: Debian Etch,
> Java HotSpot(TM) Server VM (build 1.6.0_01-b06, mixed mode), 
> Version:      2.6.0 cr-1
> CVS:          $Id: Version.java,v 1.58 2007/10/26 21:34:01 rachmatowicz Exp $
>            Reporter: Robert Newson
>         Assigned To: Vladimir Blagojevic
>             Fix For: 2.6
>
>
> When starting 4 servers, which each join 8 different ReplicatedHashMaps over a multiplexed channel, we frequently get this;
> 2007-11-03 09:39:48,774 ERROR [STREAMING_STATE_TRANSFER sender,udp,192.168.164.227:33709] log.GeronimoLog (GeronimoLog.java:108) - failed returning the application state, will return null
> java.lang.IllegalArgumentException: State provider 192.168.164.227:33709 does not have service with id space
>         at org.jgroups.mux.Multiplexer.handleStateRequest(Multiplexer.java:640)
>         at org.jgroups.mux.Multiplexer.up(Multiplexer.java:365)
>         at org.jgroups.JChannel.up(JChannel.java:1147)
>         at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:341)
>         at org.jgroups.protocols.pbcast.FLUSH.up(FLUSH.java:428)
>         at org.jgroups.protocols.pbcast.STREAMING_STATE_TRANSFER$StateProviderHandler.process(STREAMING_STATE_TRANSFER.java:731)
>         at org.jgroups.protocols.pbcast.STREAMING_STATE_TRANSFER$StateProviderThreadSpawner$1.run(STREAMING_STATE_TRANSFER.java:648)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
>         at java.lang.Thread.run(Thread.java:619)
> This is using the following stacks.xml;
> <protocol_stacks>
>   <stack name="udp">
>     <config>
>       <UDP
> 	  mcast_addr="${jgroups.udp.mcast_addr}"
> 	  mcast_port="${jgroups.udp.mcast_port}"
> 	  tos="8"
> 	  ucast_recv_buf_size="20000000"
> 	  ucast_send_buf_size="640000"
> 	  mcast_recv_buf_size="25000000"
> 	  mcast_send_buf_size="640000"
> 	  loopback="false"
> 	  discard_incompatible_packets="true"
> 	  max_bundle_size="64000"
> 	  max_bundle_timeout="30"
> 	  use_incoming_packet_handler="true"
> 	  ip_ttl="${jgroups.udp.ip_ttl:32}"
> 	  enable_bundling="true"
> 	  enable_diagnostics="false"
> 	  thread_naming_pattern="cl"
> 	  use_concurrent_stack="true"
> 	  thread_pool.enabled="true"
> 	  thread_pool.min_threads="1"
> 	  thread_pool.max_threads="25"
> 	  thread_pool.keep_alive_time="5000"
> 	  thread_pool.queue_enabled="false"
> 	  thread_pool.queue_max_size="100"
> 	  thread_pool.rejection_policy="Run"
> 	  oob_thread_pool.enabled="true"
> 	  oob_thread_pool.min_threads="1"
> 	  oob_thread_pool.max_threads="8"
> 	  oob_thread_pool.keep_alive_time="5000"
> 	  oob_thread_pool.queue_enabled="false"
> 	  oob_thread_pool.queue_max_size="100"
> 	  oob_thread_pool.rejection_policy="Run"/>
>       <PING timeout="${jgroups.ping.timeout:15000}"
> 	    num_initial_members="${jgroups.ping.num_initial_members:32}"/>
>       <MERGE2 max_interval="30000"
> 	      min_interval="10000"/>
>       <FD_SOCK/>
>       <FD timeout="10000" max_tries="5" shun="true"/>
>       <VERIFY_SUSPECT timeout="1500" />
>       <BARRIER />
>       <pbcast.NAKACK
> 	  use_mcast_xmit="false" gc_lag="10"
> 	  retransmit_timeout="300,600,1200,2400,4800"
> 	  discard_delivered_msgs="true"/>
>       <UNICAST timeout="300,600,1200,2400,3600"/>
>       <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
> 		     max_bytes="400000"/>
>       <VIEW_SYNC avg_send_interval="60000"  />
>       <pbcast.GMS print_local_addr="false" join_timeout="10000"
> 		  join_retry_timeout="2000" shun="true"
> 		  view_bundling="true" view_ack_collection_timeout="5000"/>
>       <FC max_credits="20000000"
> 	  min_threshold="0.10"/>
>       <FRAG2 frag_size="60000" />
>       <pbcast.STREAMING_STATE_TRANSFER />
>       <pbcast.FLUSH timeout="0"/>
>     </config>  
>   </stack>
> </protocol_stacks>

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