[jboss-jira] [JBoss JIRA] (WFLY-1066) Automatic configuration of 'Initial_hosts' for a cluster using JGroups TCP-stack in domain mode

[Dominik Pospisil (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-1066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041271#comment-13041271 ] 

Dominik Pospisil commented on WFLY-1066:
----------------------------------------

I have been playing with this recently and there is a working prototype:

https://github.com/dpospisil/wildfly-core/tree/dping
https://github.com/dpospisil/wildfly/tree/dping

Usage:
Switch default stack to TCP and replace MPING protocol with this one:
<protocol type="org.jboss.as.clustering.jgroups.protocol.DPING" module="org.jboss.as.clustering.jgroups"/>

Servers will than discover running servers across domain in the same server group.

> Automatic configuration of 'Initial_hosts' for a cluster using JGroups TCP-stack in domain mode
> -----------------------------------------------------------------------------------------------
>
>                 Key: WFLY-1066
>                 URL: https://issues.jboss.org/browse/WFLY-1066
>             Project: WildFly
>          Issue Type: Feature Request
>          Components: Domain Management
>         Environment: Server running in Domain mode
>            Reporter: Wolf-Dieter Fink
>            Assignee: Dominik Pospisil
>              Labels: clustering, domain, jgroups
>
> It is complicated to keep the subsystem JGroups in sync if the tcp-stack is used in domain mode.
> All new servers that join/leave a clustered server group (configuration) must be added or removed by hand for the jgroup configuration.
> The domain server will receive the informations if a host-controller enrol and register server to a clustered server-group.
> So the configuration of the initial_hosts can be done automaticaly to avoid old entries which cause unnecessary checks and ensure that all active servers are known.



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