2011/3/28 kushal soy <[email protected]>:
> Hi
>
>
> submision is much faster from client machine; but irrespective of
> submission rate server is always processing at almost same rate(1-2
> msg/second).
> so spool size just growing with time.

main spool or outgoing spool?

> I also increased the spool thread size to 20 from 10(default); but it
> reduced the overall performance.

please define how you measure "performance". Number of mail delivered
to local users in the time unit? Number of mail delivered to remote
users in the time unit? Number of mail processed by some custom mailet
you developed?

> my max db connection is 20.

If you have 20 spoolthread you should use more than 20 db connections.

Try using a max db pool size = spoolthreads + outgoing threads (remote
delivery) + max-connections (tcp connections)
They all need db connections to do their job.

Stefano

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