[jboss-jira] [JBoss JIRA] Commented: (JGRP-547) ReplicatedHashMap does not synchonized state with the members (CSV tips)

[Bela Ban (JIRA)]

    [ http://jira.jboss.com/jira/browse/JGRP-547?page=comments#action_12367984 ] 
            
Bela Ban commented on JGRP-547:
-------------------------------

I changed some code in ConnectionTableNIO which closes existing connections instead of reusing them. This might produce the issue you're seeing. This is in CVS head.

However, we will only really test TCP_NIO in 2.6 (http://jira.jboss.com/jira/browse/JGRP-548 includes it in the cruisecontrol runs), so for 2.5 we recommend TCP. If you're concerned about scaling, in [1] we achieved excellent results with TCP:MPING for 8 node clusters.

[1] http://www.jgroups.org/javagroupsnew/perfnew/Report.html

> ReplicatedHashMap does not synchonized state with the members (CSV tips)
> ------------------------------------------------------------------------
>
>                 Key: JGRP-547
>                 URL: http://jira.jboss.com/jira/browse/JGRP-547
>             Project: JGroups
>          Issue Type: Bug
>            Reporter: Dipak Kothari
>         Assigned To: Bela Ban
>             Fix For: 2.5
>
>         Attachments: loadtest.zip
>
>
> As per the message trail in the JGroup Help forum,  starting many services concurrently causes the state not to synchronize - have noticed more then one cordinator.  When the merge happens the state is not synchronized or I don't know how to.  I have attached example code that causes this behaviour on my pc.
> The JGroup jar contains source from 2.5cr1 release with the ReplicatedHashMap added in.  The loadtest package contains my code, pretty self explainatory

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