[infinispan-dev] Infinispan Large Scale support

[david marion]

  Good news! I was able to use the system property from ISPN-83 and remove the FLUSH from the jgroups config with 4.2.1.FINAL, and start-up times are much much better. We have a replicated cache on about 420+ nodes up in under 2 minutes. I am seeing an issue with the distributed cache though with as little as 5 nodes.  
 
  In the coordinator log I see 
 
org.infinispan.distribution.DistributionmanagerImpl: Detected a view change. Member list changed.......
org.infinispan.distribution.DistributionmanagerImpl: This is a JOIN event! Wait for notification from new joiner <name>
 
  In the log from the joining node I see:
 
org.infinispan.distribution.JoinTask: Commencing rehash on node: <name>. Before start, distributionManager.joinComplete=false
org.infinispan.distribution.JoinTask: Requesting old consistent hash from coordinator
 
  I jstack'd the joiner, the DefaultCacheManager.getCache() method is waiting on org.infinispan.distribution.DistributionManagerImpl.waitForJoinToComplete() and the Rehasher thread
  is waiting on:
 
at org.infinispan.util.concurrent.ReclosableLatch.await(ReclosableLatch.java:75)
at org.infinipsan.remoting.transport.jgroups.JGroupsDistSync.blockUntilNoJoinsInProgress(JGroupsDistSync.java:113)
 
Any thoughts?
 
> Date: Wed, 23 Mar 2011 15:58:19 +0100
> From: bban at redhat.com
> To: infinispan-dev at lists.jboss.org
> Subject: Re: [infinispan-dev] Infinispan Large Scale support
> 
> 
> 
> On 3/23/11 2:39 PM, david marion wrote:
> >
> > Bela,
> >
> > Is there a way to start up the JGroups stack on every node without using Infinispan?
> 
> 
> You could use ViewDemo [1] or Draw. Or write your own small test 
> program; if you take a look at ViewDemo's src, you'll see that it's onyl 
> a page of code.
> 
> 
> > Is there some functional test that I can run or something? I know I can't remove the FLUSH from Infinispan until 5.0.0 and I don't know if I can upgrade the underlying
> >JGroups jar.
> 
> 
> I suggest test with the latest JGroups (2.12.0) and +FLUSH and -FLUSH. 
> The +FLUSH config should be less painful now, with the introduction of 
> view bundling: we need to run flush fewer times than before.
> 
> 
> [1] http://community.jboss.org/wiki/TestingJBoss
> 
> -- 
> Bela Ban
> Lead JGroups / Clustering Team
> JBoss
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