2.2.8 vs. 2.1.15: different process spawning behavior?

[Sebastian Hagedorn]

Hi,

today we successfully migrated our installation from 2.1.15 to 2.2.8 
(thanks to Simon's RPMs!). One thing I have noticed in the few hours it's 
been running in production is that the spawning behavior of the lmtpd 
processes seems to have changed. Here's what we've got in /etc/cyrus.conf:

  lmtpunix      cmd="lmtpd" listen="/var/lib/imap/socket/lmtp" prefork=10 
maxchild=100

Formerly this would mean that there were 100 processes max, but the actual 
number would fluctuate quite a bit. When any given process had been idle 
for too long, master would kill it. Now it seems as though processes that 
are spawned stick around indefinitely.

Oct 16 11:46:28 lvr13 master[22588]: about to exec 
/usr/lib/cyrus-imapd/lmtpd

That's the last line in imapd.log that mentions lmtpd, 3 hours ago. There 
are currently 95 processes. I'm sure that some of them have gone idle in 
between ...

I haven seen anything the changelog that would explain this behavior. I'm 
not complaining, I just would like to know if this is to be expected.

Cheers, Sebastian
--
Sebastian Hagedorn M.A. - RZKR-R1 (Flachbau), Zi. 18, Robert-Koch-Str. 10
Zentrum für angewandte Informatik - Universitätsweiter Service RRZK
Universität zu Köln / Cologne University - Tel. +49-221-478-5587
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