[jboss-jira] [JBoss JIRA] Resolved: (JGRP-1195) java.lang.NullPointerException on LazyRemovalCache when doing network glitch testing

[Bela Ban (JIRA)]

     [ https://jira.jboss.org/jira/browse/JGRP-1195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-1195.
----------------------------

    Resolution: Done


fixed in 2.8 branch and CVS head (2.10)

> java.lang.NullPointerException on LazyRemovalCache when doing network glitch testing
> ------------------------------------------------------------------------------------
>
>                 Key: JGRP-1195
>                 URL: https://jira.jboss.org/jira/browse/JGRP-1195
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.8
>         Environment: Linux Redhat 4 update 7 32b
>            Reporter: David Forget
>            Assignee: Bela Ban
>            Priority: Minor
>             Fix For: 2.10
>
>
> While doing network glitch testing (disconnect one server from network for 2-3 seconds) on cluster of over 100 nodes get the following Error log related to JGroups. 
> JGroups configuration: on IPV4 system
> <config>
>     <UDP
>             mcast_addr="228.8.8.8"
>             enable_diagnostics="false"
>             discard_incompatible_packets="true"
>             loopback="true"
>             enable_bundling="false"
>             mcast_recv_buf_size="130000"
>             ucast_send_buf_size="64000"/>
>     <PING
>             timeout="6000"
>             num_initial_members="3"
>             break_on_coord_rsp="false"
>             num_ping_requests="2"/>
>     <MERGE2
>             max_interval="30000"
>             min_interval="10000"/>
>     <FD_ALL
>             interval="10000"
>             timeout="31000"/>
>     <VERIFY_SUSPECT
>             timeout="5000"
>             num_msgs="2"/>
>     <BARRIER/>
>     <pbcast.NAKACK
>             use_stats_for_retransmission="false"
>             exponential_backoff="0"
>             use_mcast_xmit="true" gc_lag="0"
>             retransmit_timeout="50,300,600,1200"
>             discard_delivered_msgs="true"/>
>     <UNICAST timeout="300,600,1200"/>
>     <pbcast.STABLE
>             stability_delay="1000"
>             desired_avg_gossip="50000"
>             max_bytes="1000000"/>
>     <VIEW_SYNC avg_send_interval="45000"/>
>     <pbcast.GMS
>             view_ack_collection_timeout="3000"
>             print_local_addr="true"
>             join_timeout="2000"
>             view_bundling="true"/>
>     <FRAG2 frag_size="55000"/>
>     <pbcast.STATE_TRANSFER/>
> </config>
> <139>2010-04-12 15:35:20,535 ERROR BERLIN OTHER_0000 "couldn't deliver message [dst: berlin.oz.com-39642, src: lima.oz.com-6451 (3 headers), size=0 bytes]" <VERBOSE=2537> [Thread - Incoming-2,RA_SG_BCC,berlin.oz.com-39642] (org.jgroups.protocols.UNICAST) (UNICAST.java:585) 
> 	java.lang.NullPointerException
> 		at org.jgroups.blocks.LazyRemovalCache.removeMarkedElements(LazyRemovalCache.java:189)
> 		at org.jgroups.blocks.LazyRemovalCache.checkMaxSizeExceeded(LazyRemovalCache.java:177)
> 		at org.jgroups.blocks.LazyRemovalCache.retainAll(LazyRemovalCache.java:130)
> 		at org.jgroups.blocks.LazyRemovalCache.retainAll(LazyRemovalCache.java:113)
> 		at org.jgroups.protocols.TP.handleDownEvent(TP.java:1160)
> 		at org.jgroups.protocols.TP.down(TP.java:840)
> 		at org.jgroups.protocols.Discovery.down(Discovery.java:423)
> 		at org.jgroups.protocols.MERGE2.down(MERGE2.java:171)
> 		at org.jgroups.protocols.FD_ALL.down(FD_ALL.java:193)
> 		at org.jgroups.protocols.VERIFY_SUSPECT.down(VERIFY_SUSPECT.java:69)
> 		at org.jgroups.protocols.BARRIER.down(BARRIER.java:91)
> 		at org.jgroups.protocols.pbcast.NAKACK.down(NAKACK.java:622)
> 		at org.jgroups.protocols.UNICAST.down(UNICAST.java:408)
> 		at org.jgroups.protocols.pbcast.STABLE.down(STABLE.java:320)
> 		at org.jgroups.protocols.VIEW_SYNC.down(VIEW_SYNC.java:189)
> 		at org.jgroups.protocols.pbcast.GMS.castViewChangeWithDest(GMS.java:467)
> 		at org.jgroups.protocols.pbcast.Merger.handleMergeView(Merger.java:166)
> 		at org.jgroups.protocols.pbcast.ServerGmsImpl.handleMergeView(ServerGmsImpl.java:37)
> 		at org.jgroups.protocols.pbcast.GMS.up(GMS.java:825)
> 		at org.jgroups.protocols.VIEW_SYNC.up(VIEW_SYNC.java:173)
> 		at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:236)
> 		at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:582)
> 		at org.jgroups.protocols.UNICAST.up(UNICAST.java:276)
> 		at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:692)
> 		at org.jgroups.protocols.BARRIER.up(BARRIER.java:120)
> 		at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:132)
> 		at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:178)
> 		at org.jgroups.stack.Protocol.up(Protocol.java:340)
> 		at org.jgroups.protocols.Discovery.up(Discovery.java:277)
> 		at org.jgroups.protocols.PING.up(PING.java:67)
> 		at org.jgroups.protocols.TP.passMessageUp(TP.java:953)
> 		at org.jgroups.protocols.TP.access$100(TP.java:53)
> 		at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1458)
> 		at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1439)
> 		at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
> 		at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
> 		at java.lang.Thread.run(Thread.java:595)
> 	<END>

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