number of imapd processes never decrease

[Konrad Mauz <kmauz@xxxxxxxxxxxxxxxx>]

Hi,

on monday I updated our cyrus mailsystem to version 2.5.6 ( coming from 
2.3.x ). The upgrade process was successfull.


Problem 1: The number of imapd processes increases during the day ( 
normal! ) but keep increasing during the night ( not normal ).
I have a graph attached.
Cyrus is running an a recently updated Ubuntu 14.04. lts server. Is 
there anything I can do?

Problem 2: In my start-stop script i sent SIGTERM to the master process. 
The master exists, but sometimes most imapd process lists as "defunc" 
with "ps -ef". They never exits an must be killed with kill -9 or by a 
server reboot. Is this the wrong way?

Regards,

Konrad

cyrus.conf:

START {
  # do not delete this entry!
  recover       cmd="ctl_cyrusdb -r"

  # this is only necessary if using idled for IMAP IDLE
  idled         cmd="idled"
}

# UNIX sockets start with a slash and are put into /var/imap/socket
SERVICES {
  # add or remove based on preferences
  imap          cmd="imapd" listen="imap" prefork=10 maxchild=3000
  imaps         cmd="imapd -s" listen="imaps" prefork=10 maxchild=3000
  pop3          cmd="pop3d" listen="pop3" prefork=5 maxchild=100
  pop3s         cmd="pop3d -s" listen="pop3s" prefork=5 maxchild=100
  sieve         cmd="timsieved" listen="sieve" prefork=1

  # these are only necessary if receiving/exporting usenet via NNTP
#  nntp         cmd="nntpd" listen="nntp" prefork=0
#  nntps                cmd="nntpd -s" listen="nntps" prefork=0

  # at least one LMTP is required for delivery
  lmtpunix      cmd="lmtpd" listen="/srv/cyrus/imap/socket/lmtp" 
prefork=1 maxchild=5

# this is only necessary if using notifications
  notify        cmd="notifyd" listen="/srv/cyrus/imap/socket/notify" 
proto="udp" prefork=0
# syncserver       cmd="sync_server" listen="csync"
}

EVENTS {
  # this is required
  checkpoint    cmd="ctl_cyrusdb -c" period=30

  # this is only necessary if using duplicate delivery suppression,
  # Sieve or NNTP
  # -X 60 -> expunged mails are unexpungable for 60 days
  # -D 60 -> deleted forlders are undeleable for 60 days
  # -E 7 -> delete entries in des duplicate database older then 7 days
  delprune      cmd="cyr_expire -D 60 -X 60 -E 7" at=0400

  # this is only necessary if caching TLS sessions
  tlsprune      cmd="tls_prune" at=0400
  squatindex    cmd="squatter -i -v -s" at=0500
}



--
Hochschule Konstanz - Rechenzentrum
Konrad Mauz kmauz@xxxxxxxxxxxxxxxx
Tel: +497531206-472, Fax: -153
http://www.htwg-konstanz.de/rz.html

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