dovecot - Nov 2011 - Excessive imap-logins, never die

Hiya,

Today I note there are 38 imap-logins  that seem to be stale on our staff
imap server,
 they do not seem to die off, new imap-logins are created with new logins
and exit accordingly.

Now, these are from our monitoring software that runs on another server on
our LAN. Our corporate link was taken down for 2 hours for urgent
relocation of fibre (demolishing old adjoining building, and just in case,
they needed to move it which we were glad about), so, this begs the
question, why would imap-logins be there I guess in some sort of wait
state, even with a still working internal DNS (internal view as well) the
only difference is no actual internet connection in this time.  A week ago
when they first started to working and we lost internet for 45 minutes I
also saw a few extra stale imap-logins, but after todays events, I decided
this is a bigger issue that needs to be looked into, as dovecot required a
restart to clear it all (I wasnt going to sit there killing individual PIDs
all evening).

Dovecot version 1.2.17, built from source

On 16.11.2011, at 0.48, Nick Edwards wrote:
> Today I note there are 38 imap-logins  that seem to be stale on our staff
> imap server,
> they do not seem to die off, new imap-logins are created with new logins
> and exit accordingly.
..
> Dovecot version 1.2.17, built from source
All this code has been rewritten in v2.0 and there's not much point in
spending time on figuring out why things aren't working perfectly in v1.x.
But you could most likely avoid this problem by switching to
"high-performance mode": http://wiki.dovecot.org/LoginProcess