Hi wizard,

>  I try to use a new version of mysql that supports transaction .
> I can do some transaction operation on BDB and InnoDB table type
> with  command BEGIN ,COMMIT and ROLLBACK successfully.

Nice to hear that! I'm VERY interested in your further results,
especially performance and reliability. Would you care to report
to this list, please?

> I got one line in the log file,
> " [mysql] no transcation right now",
> what does it mean?

The message comes from org.jboss.pool.jdbc.xa.XAConnectionFactory
in the method prepareObject. The code tries to assign a connection
to a transaction, if one exists, but seems to allow usage of
the connection outside a transaction.

I guess, you are getting a connection in a beans method with a
transaction attribute of Supports, Never or Notsupported, do you?
Or might be, you get a connection somewhere in your test code,
where no transaction at all is established (i.e. from a servlet)?

Hope this helps
Georg
 ___   ___
| + | |__    Georg Rehfeld      Woltmanstr. 12     20097 Hamburg
|_|_\ |___   [EMAIL PROTECTED]           +49 (40) 23 53 27 10



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