Re: To scale or to be correct: that is the question

[Cedric Beust]

> From: Evan Ireland [mailto:[EMAIL PROTECTED]]

> I read the document, unfortunately it didn't tell me what is the
> effect of:
>
>     <concurrency-strategy>Database</concurrency-strategy>
>
> with respect to Oracle.

We don't know :-)

Seriously, that's the whole point:  we really don't know.  We don't lock, we
activate as many instances as asked and we send the UPDATES blindly to the
database and let it sort it out.

If your database is set to optimistic concurrency (the default for Oracle),
that's what you will get, with the risk of rollbacks.  If it is pessimistic,
the UPDATES will be serialized.  No rollbacks, but a risk for waiting as
there can be contention on the row locks.

'makes sense?

--
Cedric

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