[jboss-jira] [JBoss JIRA] (AS7-5907) Assign an unique NodeID automatically

[Tom Jenkinson (JIRA)]

    [ https://issues.jboss.org/browse/AS7-5907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12732797#comment-12732797 ] 

Tom Jenkinson edited comment on AS7-5907 at 11/8/12 10:01 AM:
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This was deferred in JBTM, but I think it might be something AS7 would like to provide for usability aspects.

Generally: assuming the user does not define the node-identifier themselves, use Cleberts algorithm to persistently store a unique node-identifier.

Note the node-identifier must be unique for any server that talks to another server or shares an object store, it may be that UUID is not considered to be guaranteed to be unique enough.
                
      was (Author: tomjenkinson):
    This was deferred in JBTM, but I think it might be something AS7 would like to provide for usability aspects.

Generally: assuming the user does not define the node-identifier themselves, use Cleberts algorithm to persistently store a unique node-identifier.

Note the node-identifier must be unique for any server that talks to another server or shares an object store, it may be that UUID is not considered unique enough.
                  
> Assign an unique NodeID automatically
> -------------------------------------
>
>                 Key: AS7-5907
>                 URL: https://issues.jboss.org/browse/AS7-5907
>             Project: Application Server 7
>          Issue Type: Feature Request
>            Reporter: Clebert Suconic
>            Assignee: Stefano Maestri
>
> It shouldn't be needed to assign the node-id manually IMO.
> You could store the node-id on a file and recover it for subsequent starts.
> On hornetQ for instance, we look for the nodeID on a file, if the file doesn't exist we assign a UUID and write to the file.
> In our previous experience UUID would be a best fit to assign the nodes since that was the only way we could guarantee unique IDs between the nodes.

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