[jboss-jira] [JBoss JIRA] (JGRP-1002) Merge: make the coordinator remain the same if possible after a merge

[Bela Ban (Resolved) (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-1002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-1002.
----------------------------

    Resolution: Duplicate Issue


Closing as duplicate of JGRP-592
                
> Merge: make the coordinator remain the same if possible after a merge
> ---------------------------------------------------------------------
>
>                 Key: JGRP-1002
>                 URL: https://issues.jboss.org/browse/JGRP-1002
>             Project: JGroups
>          Issue Type: Feature Request
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 3.1
>
>
> When we have {C, A, B} and split into {C,A} and {B}, then a merge will produce {A,B,C}. Therefore the coord is moved from C to A. For certain apps, e.g. JBoss singletons, this is not good, as we're moving the singleton services from a perfectly healthy node to a different node.
> GOAL: come up with a deterministic policy of picking a coord such that we minimize coord switching if the existing coord is still member of the cluster.
> This depends on or is related to the flexible coord pick policy JIRA issue

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