[jboss-dev-forums] [JBoss Transactions Development] - Re: Remote txn inflow: branch qualifier different in different transaction manager instance

[Michael Musgrove]

Michael Musgrove [http://community.jboss.org/people/mmusgrov] created the discussion

"Re: Remote txn inflow: branch qualifier different in different transaction manager instance"

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> You are correct that the resource manager will get different branch qualifiers for the same XA resource at the different servers - it will get the same branch qualifier at any single server (even during reentry), e.g. for node flow of 1,2,3,2 the bqual for the XA resource at 2 would be the same for both flows but it would be different at nodes 1 and 3).

OK, but that does mean that accesses to the resource manager from nodes 1 and 3 will be treated as a separate global transaction with respect to isolation - ie work done, and locks taken, at node 1 won't be seen at node 3 (search for loosely-coupled in the X/Open XA  spec for where this is covered).

Since the remoting protocol is not demanded by the JTA spec, is it the case that the issue I raise is a non-issue?
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