[jboss-jira] [JBoss JIRA] Resolved: (JBAS-1476) Need to include a notion of cluster instance in the cluster view

[Brian Stansberry (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBAS-1476?page=all ]

Brian Stansberry resolved JBAS-1476.
------------------------------------

    Fix Version/s:     (was: JBossAS-5.0.0.Beta4)
       Resolution: Out of Date

Resolving this old issue in favor of JBAS-5197.  That issue reflects the approach we decided upon on the forum.

> Need to include a notion of cluster instance in the cluster view
> ----------------------------------------------------------------
>
>                 Key: JBAS-1476
>                 URL: http://jira.jboss.com/jira/browse/JBAS-1476
>             Project: JBoss Application Server
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Clustering
>    Affects Versions: JBossAS-4.0.1 Final, JBossAS-3.2.7 Final, JBossAS-4.0.1 SP1
>            Reporter: Adrian Brock
>         Assigned To: Brian Stansberry
>
> We need to include a notion of cluster instance in the cluster view id
> to avoid at least the following scenario:
> Client serializes a handle to a cluster which is at cluster view 22
> Handle contains key DefaultPartition/HAJNDI/22
> The cluster is totally restarted meaning the view reverts back to one.
> The client now has a view id
> DefaultPartition/HAJNDI/1
> The client deserializes the handle, which will overwrite the correct cluster
> view with the old invalid view.
> ----
> This will also avoid the problem where a client talks to different clusters
> with the same partition name.
> ----
> Proposed solution:
> 1) At cluster formation (first node in cluster), create a cluster instance GUID
> 2) At cluster join (second+ node in cluster) get the GUID from the coordinator
> 3) Include this GUID in cluster view keys, i.e.
> GUID/DefaultPartition/HAJNDI/1

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