[jbossts-issues] [JBoss JIRA] (JBTM-1157) Assign an unique NodeID automatically

Tom Jenkinson (JIRA) jira-events at lists.jboss.org
Fri May 4 02:42:17 EDT 2012

    [ https://issues.jboss.org/browse/JBTM-1157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12690294#comment-12690294 ] 

Tom Jenkinson commented on JBTM-1157:

Hi Clebert, you might have missed this on IRC, but unfortunately we can't because the nodeID has to be part of the XID and we are bounded by 64bits for gtrid and 64 for bqual. A UUID is 128 on its own :'(
> Assign an unique NodeID automatically
> -------------------------------------
>                 Key: JBTM-1157
>                 URL: https://issues.jboss.org/browse/JBTM-1157
>             Project: JBoss Transaction Manager
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>            Reporter: Clebert Suconic
>            Assignee: Tom Jenkinson
> 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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