[jboss-jira] [JBoss JIRA] (JGRP-2262) "Frozen" coordinator causes the whole cluster to hang

[Pietro Paolini (JIRA)]

Pietro Paolini created JGRP-2262:
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             Summary: "Frozen" coordinator causes the whole cluster to hang
                 Key: JGRP-2262
                 URL: https://issues.jboss.org/browse/JGRP-2262
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 3.6.7
            Reporter: Pietro Paolini
            Assignee: Bela Ban


This is the result of an investigation I carried out about a problem we have experienced within our
application, in this scenario it has been re-created by pausing the JVM using a debugger.

The discovery mechanism is JDBC_PING.

If the coordinator's JVM gets fronzen (for whatever reason) before the coordinator sets itself as the cluster coordinator and another node is started after that it will be unable to join the cluster and it will hang indefinitely.

This seems to be caused by the "continue" statement at

https://github.com/belaban/JGroups/blob/master/src/org/jgroups/protocols/pbcast/ClientGmsImpl.java:92

I have prepared a simple application which can help in replicating the problem but unfortunately I can't upload it on Jira as it complains because of a "missing token".




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