[jboss-jira] [JBoss JIRA] Created: (JGRP-260) Two subgroups don't merge when one of the hosts in TCPPING(intial_hosts=...) list is not accessible

[Tomasz Skutnik (JIRA)]

Two subgroups don't merge when one of the hosts in TCPPING(intial_hosts=...) list is not accessible
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                 Key: JGRP-260
                 URL: http://jira.jboss.com/jira/browse/JGRP-260
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 2.2.9.2
         Environment: Debian GNU/Linux 2.4.27, JDK 1.5.0_05
            Reporter: Tomasz Skutnik
         Assigned To: Bela Ban
         Attachments: Test1.java

When I run client program (see attachment) with following command:

- on host h1:

$ java -cp \
  jgroups-all-2.2.9.2.jar:concurrent.jar:commons-logging-1.1.jar:\
  classes test.Test1 "h1" "h1[7800],h3[7800]"

- on host h2:

$ java -cp \
  jgroups-all-2.2.9.2.jar:concurrent.jar:commons-logging-1.1.jar:\
  classes test.Test1 "h2" "h1[7800],h3[7800]"

And host "h3" is known (listed in /etc/hosts) but physically turned off
both hosts (h1 and h2) create two disjoint groups instead of one merged
group. And on host "h2" following warnings/errors are logged:

2006-07-11 08:56:07 org.jgroups.protocols.pbcast.CoordGmsImpl$MergeTask run
WARNING: merge responses from subgroup coordinators <= 1
([sender=172.16.195.131:7800, view=[172.16.195.131:7800|0]
[172.16.195.131:7800], digest=172.16.195.131:7800: [0 : 5]]). Cancelling
merge
2006-07-11 08:56:52 org.jgroups.protocols.pbcast.CoordGmsImpl$MergeTask run
WARNING: merge responses from subgroup coordinators <= 1
([sender=172.16.195.131:7800, view=[172.16.195.131:7800|0]
[172.16.195.131:7800], digest=172.16.195.131:7800: [0 : 7]]). Cancelling
merge
2006-07-11 08:57:26 org.jgroups.protocols.pbcast.CoordGmsImpl
handleMergeResponse
SEVERE: this.merge_id ([172.16.195.131:7800|1152601002343]) is different
from merge_id ([172.16.195.131:7800|1152600957961])
2006-07-11 08:58:24 org.jgroups.protocols.pbcast.CoordGmsImpl$MergeTask run
WARNING: merge responses from subgroup coordinators <= 1 ([]).
Cancelling merge
2006-07-11 08:58:24 org.jgroups.protocols.pbcast.CoordGmsImpl
sendMergeCancelledMessage
SEVERE: coords or merge_id == null
2006-07-11 08:58:24 org.jgroups.protocols.pbcast.CoordGmsImpl
sendMergeCancelledMessage
SEVERE: coords or merge_id == null
...


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