[jboss-jira] [JBoss JIRA] (JGRP-2293) Graceful concurrent leaving of coordinator(s) leaves the cluster with stale views

[Bela Ban (Jira)]

    [ https://issues.jboss.org/browse/JGRP-2293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13685859#comment-13685859 ] 

Bela Ban commented on JGRP-2293:
--------------------------------

OK [~rhusar] [~dan.berindei] I've fixed this issue, unit test is {{LeaveTest}}. Please let me know if this works for you. [~rhusar] Until I get the green light from Dan, I'm looking into the {{ASYM_ENCRYPT_LeaveTest}} (https://issues.jboss.org/browse/JGRP-2297).

> Graceful concurrent leaving of coordinator(s) leaves the cluster with stale views
> ---------------------------------------------------------------------------------
>
>                 Key: JGRP-2293
>                 URL: https://issues.jboss.org/browse/JGRP-2293
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 4.0.14
>            Reporter: Radoslav Husar
>            Assignee: Bela Ban
>            Priority: Critical
>             Fix For: 4.0.17
>
>
> JGroups does not handle concurrent leaving of nodes correctly. This is a typical use case in cloud environment when scaled down with an autoscaler/manually which we need to handle.
> A simple test can be devised which fails first n (where n>1) nodes from a cluster, reproducer PR https://github.com/belaban/JGroups/pull/397



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