[jboss-jira] [JBoss JIRA] (WFLY-1119) Assign an unique NodeID automatically

[Amos Feng (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-1119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046009#comment-13046009 ] 

Amos Feng commented on WFLY-1119:
---------------------------------

https://github.com/jbosstm/narayana/blob/master/ArjunaCore/arjuna/classes/com/arjuna/ats/arjuna/coordinator/TxControl.java#L50
{code}
public static final int NODE_NAME_SIZE = 28;
{code}

It looks like that the max length of thenode_identifier 24 is OK.  

> Assign an unique NodeID automatically
> -------------------------------------
>
>                 Key: WFLY-1119
>                 URL: https://issues.jboss.org/browse/WFLY-1119
>             Project: WildFly
>          Issue Type: Feature Request
>          Components: Transactions
>            Reporter: Clebert Suconic
>            Assignee: Amos Feng
>            Priority: Optional
>
> 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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