[jboss-dev-forums] [JBoss Transactions Development] - Re: Remote txinflow: XID changes

[David Lloyd]

David Lloyd [http://community.jboss.org/people/dmlloyd] created the discussion

"Re: Remote txinflow: XID changes"

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> Jonathan Halliday wrote:
> 
> > From the Remoting perspective, the EIS name would most likely just be the full node name of the calling node
> 
> Nope, it's the name of the target node, not the originating node. If you have one parent server talking to two subordinate servers, that's two distinct EIS names, because the parent has to be able to tell the subordinates apart for recovery purposes, just as it has to be able to tell apart e.g. the Oracle and MSSQL server dbs it's talking to through the same mechanism.  Which brings up back to the other list the parent needs to maintain: a set of all the subordinates it's talked to. Well actually it's the set of all subordantes with outstanding tx, but deleting items from the list frequently is probably more trouble than its worth.
Ah, you're just looking at it from the opposite end; however the point still stands that the EIS name is equal to the node name.  If I set up a Remoting connection into the EJB client, the node (and cluster) name of the remote side is noted for various purposes.  This also has the advantage that a node can be contacted via a different configuration, socket, or protocol and still be recognized which allows us to port over UserTransaction as well as stateful EJBs to new connections.  It should also help us with this issue.
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