master does not prefork more than 2 imapd and 2 pop3d

[Laurent LAVAUD]

When I configure /etc/cyrus.conf to prefork:

	- 4 imap
	- 3 pop3
	- 0 sieve
	- 1 lmtpunix

my system shows (ps ax --forest):

14980 ?        S      0:00 /opt/cyrus/bin/master -d
14983 ?        S      0:00  \_ imapd
14984 ?        S      0:00  \_ pop3d
14985 ?        S      0:00  \_ lmtpd
14986 ?        S      0:00  \_ imapd
14987 ?        S      0:00  \_ pop3d

Why only 2 imapd and 2 pop3d ?



My software configuration is:

distribution: debian 2.2r7
kernel: 2.2.20
berkeleydb: 4.0.14
cyrus-sasl: 2.1.13
cyrus-imapd: 2.1.13
openldap: 2.0.17 (used with cyrus-sasl)



My hardware configuration is:

2xPIII 800Mhz
1GB RAM
3 IDE disks




/etc/cyrus.conf:

-- BEGINING OF /etc/cyrus.conf --

# standard standalone server implementation

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/sockets
SERVICES {
   # add or remove based on preferences
   imap          cmd="imapd" listen="imap" prefork=4
#  imaps                cmd="imapd -s" listen="imaps" prefork=1
   pop3          cmd="pop3d" listen="pop3" prefork=3
#  pop3s                cmd="pop3d -s" listen="pop3s" prefork=1
   sieve         cmd="timsieved" listen="sieve" prefork=0

   # at least one LMTP is required for delivery
#  lmtp         cmd="lmtpd" listen="lmtp" prefork=0
   lmtpunix      cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=1

   # this is only necessary if using notifications
#  notify       cmd="notifyd" listen="/var/imap/socket/notify" proto="udp" prefork=1
}

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

   # this is only necessary if using duplicate delivery suppression
   delprune      cmd="ctl_deliver -E 3" at=0400

   # this is only necessary if caching TLS sessions
   tlsprune      cmd="tls_prune" at=0400
}

-- END OF /etc/cyrus.conf --




/etc/imapd.conf:

-- BEGINING OF /etc/imapd.conf --

configdirectory: /opt/cyrus
partition-default: /var/spool/cyrus
quotawarn: 80
reject8bit: no
hashimapspool: true
admins: cyrus
sasl_pwcheck_method: saslauthd
sasl_auto_transition: no
timeout: 10
sievedir: /opt/cyrus/sieve
sieve_maxscriptsize: 32
sieve_maxscripts: 10
lmtpsocket: /var/imap/socket/lmtp
idlesocket: /var/imap/socket/idle
notifysocket: /var/imap/socket/notify

-- END OF /etc/cyrus.conf --


When I start master, here is the output of /var/log/imapd.log:


-- BEGINING OF /var/log/imapd.log --

Jun 12 09:41:11 hippoha3 master[16512]: setrlimit: Unable to set file descripto\rs limit to 2147483647: Operation not permitted
Jun 12 09:41:11 hippoha3 master[16512]: setrlimit: Unable to set file descripto\rs limit to 2147483647: Operation not permitted
Jun 12 09:41:11 hippoha3 master[16512]: setrlimit: Unable to set file descripto\rs limit to 2147483647: Operation not permitted
Jun 12 09:41:11 hippoha3 master[16512]: setrlimit: Unable to set file descripto\rs limit to 2147483647: Operation not permitted
Jun 12 09:41:11 hippoha3 master[16512]: retrying with 1024 (current max)
Jun 12 09:41:11 hippoha3 master[16512]: retrying with 1024 (current max)
Jun 12 09:41:11 hippoha3 master[16512]: retrying with 1024 (current max)
Jun 12 09:41:11 hippoha3 master[16512]: retrying with 1024 (current max)
Jun 12 09:41:11 hippoha3 master[16512]: process started
Jun 12 09:41:11 hippoha3 master[16512]: process started
Jun 12 09:41:11 hippoha3 master[16513]: about to exec /opt/cyrus/bin/ctl_cyrusd\b
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16513]: recovering cyrus databases
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16513]: recovering cyrus databases
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16513]: skiplist: recovered /opt/cyrus/mai\lboxes.db (1937 records, 171476 bytes) in 0 seconds
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16513]: skiplist: recovered /opt/cyrus/mai\lboxes.db (1937 records, 171476 bytes) in 0 seconds
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16513]: done recovering cyrus databases
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16513]: done recovering cyrus databases
Jun 12 09:41:11 hippoha3 master[16512]: ready for work
Jun 12 09:41:11 hippoha3 master[16512]: ready for work
Jun 12 09:41:11 hippoha3 master[16515]: about to exec /opt/cyrus/bin/imapd
Jun 12 09:41:11 hippoha3 master[16514]: about to exec /opt/cyrus/bin/ctl_cyrusd\b
Jun 12 09:41:11 hippoha3 imap[16515]: executed
Jun 12 09:41:11 hippoha3 master[16516]: about to exec /opt/cyrus/bin/pop3d
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16514]: checkpointing cyrus databases
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16514]: checkpointing cyrus databases
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16514]: archiving database file: /opt/cyru\s/mailboxes.db
Jun 12 09:41:11 hippoha3 pop3[16516]: executed
Jun 12 09:41:11 hippoha3 master[16517]: about to exec /opt/cyrus/bin/lmtpd
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16514]: archiving log file: /opt/cyrus/db/\log.0000000001
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16514]: done checkpointing cyrus databases
Jun 12 09:41:11 hippoha3 ctl_cyrusdb[16514]: done checkpointing cyrus databases
Jun 12 09:41:11 hippoha3 master[16512]: process 16514 exited, status 0
Jun 12 09:41:11 hippoha3 master[16518]: about to exec /opt/cyrus/bin/imapd
Jun 12 09:41:11 hippoha3 lmtpunix[16517]: executed
Jun 12 09:41:11 hippoha3 master[16519]: about to exec /opt/cyrus/bin/pop3d
Jun 12 09:41:11 hippoha3 pop3[16519]: executed
Jun 12 09:41:11 hippoha3 imap[16518]: executed

-- END OF /var/log/imapd.log --
-- 
Laurent LAVAUD
Centre de Ressources Informatiques
Universite Bordeaux2
143 rue Leo Saignat
33076 Bordeaux cedex
Tel: 05 57 57 15 03
Fax: 05 57 57 45 42