On Tue, 2010-04-13 at 16:24 -0700, Terry Barnum wrote: > I'm sure this is a really newbie question, but I notice in /var/log/mail.log > that there are between 3 and 15 of the following log entries every day for > the last five days, which is far back as my logs go--what do they mean? > > Apr xx hh:mm:ss mail dovecot[109]: auth-worker(default): mysql: Connected to > localhost (postfix) > > Is it dovecot connecting to mysql for password or user info? If so, wouldn't > it be more frequent? I've got 20 users with some connecting from outside many > times per day.
Dovecot uses persistent connections to MySQL. Above probably means that a new auth-worker process was created and it connected to MySQL. Auth-worker processes also die away automatically after idling for a while. If your server had more traffic, the worker processes wouldn't die and so new worker processes wouldn't be created either, and you wouldn't get those messages.
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