Such connections do not exist on the front-end that connects to director hosts, so it's something between director and dovecot only.
On Wed, Sep 21, 2016 at 1:16 PM, Webert de Souza Lima <webert.b...@gmail.com > wrote: > Hello, > > I have a 2 director - 2 dovecot set up in a cluster. > > From time to time I notice high usage of RAM by dovecot process, and > analyzing with doveadm who, > I see many users with dozens, even hundreds of PIDs. > > Inspecting those PIDs I see each one of them is an IMAP connection, coming > from either director process, and ESTABILISHED. > > A deeper analysis shows me that there ltos of connections from the same > users to BOTH dovecot instances, but as I am using director, this shouldn't > happen, right? Ok. The thing is, one of the dovecot instances have only old > connections (like 3 days old) and the other dovecot have some old and some > newer connections. > > So, director is redirecting recent connections to the right dovecot, as > expected, but it is keeping many of old and unused connections open, > consuming resources. > > output of doveconf -n from dovecot: > http://pastebin.com/trMEjeAs > > output of doveconf -n from director: > http://pastebin.com/EUpHYMKY > > Thanks. >