[jboss-jira] [JBoss JIRA] (JGRP-1705) MERGE3 handles fake merge views

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-1705:
---------------------------

    Fix Version/s: 3.4

    
> MERGE3 handles fake merge views
> -------------------------------
>
>                 Key: JGRP-1705
>                 URL: https://issues.jboss.org/browse/JGRP-1705
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.4
>            Reporter: Karim AMMOUS
>            Assignee: Bela Ban
>             Fix For: 3.4
>
>         Attachments: JIRA-MERGE-1subGroup-Shutdown.log, JIRA-MERGE-1subGroup.log
>
>
> Under some conditions, MERGE3 handles fake merge views. After "merge", number of members that form the cluster still the same and the mergeView contains only one subgroup.
> Scenario:
> - Form a large cluster (1115 mbrs)
> - Enable MERGE3 TRACE logging level on coordintor member (172.29.190.5)
> - Reboot one machine (172.29.190.5) hosting 7 JVMs
> - Coord install a new view with 1108 mbrs.
> When new members join the cluster we observe a merge view formed by only one subgroup.
> Coordinator log file was attached to this JIRA.

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