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

[Guy Golan (JIRA)]

Guy Golan created JGRP-1431:
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             Summary: 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


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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