[jboss-jira] [JBoss JIRA] Commented: (JBMESSAGING-1230) Client failover support if one node of a cluster is cleanly shut down.

[Kenny MacLeod (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBMESSAGING-1230?page=comments#action_12399208 ] 
            
Kenny MacLeod commented on JBMESSAGING-1230:
--------------------------------------------

I wouldn't be particularly happy with that solution, for two reasons:

a) I may not want to start another node. 

Say I have a cluster of two machines, and I want to replace one of them.  The proper way to do this is to add a third node, then remove one of the old ones, so that at all times at least 2 nodes are present.  In this scenario, the node that is removed is gone, and will not be replaced.

b) I auto-generate my ServerPeerIDs based on hostname, since I don't want to manually manage these obscure integers.  

Forcing nodes to use a certain ID in order to reclaim orphan messages just doesn't work with this operational model.  

So in some perfectly common situations, re-use of the ServerPeerID is not practical or desirable.

> Client failover support if one node of a cluster is cleanly shut down.
> ----------------------------------------------------------------------
>
>                 Key: JBMESSAGING-1230
>                 URL: http://jira.jboss.com/jira/browse/JBMESSAGING-1230
>             Project: JBoss Messaging
>          Issue Type: Feature Request
>            Reporter: Phillip Thurmond
>         Assigned To: Tim Fox
>             Fix For: 1.4.0.SP3.CP01
>
>
> If one node of a cluster fails in someway, the client will attempt to failover transparently.  However, if one node is shutdown cleanly, the client will not automatically failover to another node in the cluster.  This functionality would be very useful for "rolling upgrades" where a portion of the cluster is left up while the other nodes are being updated.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira