[jboss-jira] [JBoss JIRA] (JGRP-1431) GossipRouter drops members from the routing table

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-1431:
---------------------------

    Fix Version/s: 3.1

    
> GossipRouter drops members from the routing table 
> --------------------------------------------------
>
>                 Key: JGRP-1431
>                 URL: https://issues.jboss.org/browse/JGRP-1431
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.1
>            Reporter: Guy Golan
>            Assignee: Bela Ban
>             Fix For: 3.1
>
>
> I have looked at GossipRouter.java and it seems like it has a bug that sometimes drops new members from the routing table.
> The problem is caused by the methods:  "removeEntry" and "handleConnect".
> Specifically, the method "removeEntry" contains the following code fragment:
> if(map.isEmpty()) {
>      routingTable.remove(group);
> So, if "removeEntry" is executed and a concurrent  "handleConnect" adds a member (to the same group) between "map.isEmpty()" and "routingTable.remove(group)" then this member will be dropped from the routing-table.
> Note that, in this case the method "handleConnect" still sends "CONNECT_OK" to the client.

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