[jboss-jira] [JBoss JIRA] Created: (JGRP-1060) NAKACK has inconsistent internal state after concurrent node startup

[Dennis Reed (JIRA)]

NAKACK has inconsistent internal state after concurrent node startup
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                 Key: JGRP-1060
                 URL: https://jira.jboss.org/jira/browse/JGRP-1060
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 2.4.5
            Reporter: Dennis Reed
            Assignee: Bela Ban


Three nodes are started concurrently.  The log from the second node to join shows the following (IPs/ports have been replaced)

    05:26:00,594 45102 INFO  [org.jboss.cache.TreeCache] (main:) viewAccepted(): [node1:1234|1] [node1:1234, node2:1234]
    05:26:00,732 45240 INFO  [org.jboss.cache.TreeCache] (main:) TreeCache local address is node2:1234
    05:26:00,852 45360 INFO  [org.jboss.cache.TreeCache] (IncomingPacketHandler (channel=Tomcat-DefaultPartition):) viewAccepted(): [node1:1234|2] [node1:1234, node2:1234, node3:1234]
    05:26:00,861 45369 INFO  [org.jboss.cache.TreeCache] (IncomingPacketHandler (channel=Tomcat-DefaultPartition):) received the state (size=1024 bytes)

Then many instances of the following logs for more than a day:

    WARN  [org.jgroups.protocols.pbcast.NAKACK] (IncomingPacketHandler (channel=Tomcat-DefaultPartition):) node2:1234] discarded message from non-member node3:1234, my view is [node1:1234|2] [node1:1234, node2:1234, node3:1234]

    ERROR [org.jgroups.protocols.pbcast.NAKACK] (Timer-3:) sender node3:1234 not found in received_msgs

For these messages to be logged, NAKACK is in an inconsistent internal state.  The addresses in "members" does not match "received_msgs".

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