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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http://community.jboss.org/message/633256#633256
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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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