Re: jabberd2 questions?

On Sat, 30 Aug 2008 10:40:19 -0600, Jack Moffitt wrote:
>> I don't see how a connection pool could improve anything here. As the
>> session manager is single-threaded, there is no way it can use more than one
>> connection at a time. So, to be able to use more than one connection, you
>> would first have to make it multi-threaded.
> A connection pool of course implies the connections are in threads.
> None of the rest of the server needs to be threaded at all.  There
> would just be a non-blocking API design to submit a query and then
> some callback would return with the answer later.

And, of course, you would have to rework all the server code (that uses the
database) to use a non-blocking API instead of a blocking API - which might
even be more work to do than making it threaded. The middle way might be to
use some cooperative threading package - but still you won't be able to rely
on lots of assumptions in the code you have taken for granted in the past.


> This is how Twisted Python works for example.

Yes, but that has been designed that way from the start.


Christof

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