Pete Slagle wrote:

Using dovecot version v1.0.beta8 on FreeBSD 6.1_RELEASE with

login_process_per_connection = no

in the dovecot.conf file, I still get a new imap process for each IMAP login. That is, if a single user logs in five times, five imap processes are created.

The difference appears to be that with a "yes" setting each user login causes a new copy of the imap-login processes to be forked, which then creates the imap process for the connection and exits. With a "no" setting, one of the existing imap-login processes creates the imap process directly (and does not exit).

I am understanding the effect of this control setting correctly? Are there other actions or implications?

Pete

I think you're understanding it correctly. We use "login_process_per_connection = no" ourselves. It's supposed to give slightly better performance at the cost of slightly less security/stability.

However, if you're using SSL (as we're starting to do) then imap-login has more work to do; it does the SSL part and proxies the rest to the imap process.

Best Wishes, Chris

-- --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- Christopher Wakelin, c.d.wakelin@reading.ac.uk IT Services Centre, The University of Reading, Tel: +44 (0)118 378 8439 Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094