After upgrade from Cyrus-IMAP 2.2.12 to 2.2.13 we have a problem with
hanging imapd-processess. This happens about once a day on our production
system.
in TOP the process uses ca. 98% CPU and strace shows following:
--- SIGSTOP (Stopped (signal)) @ 0 (0) ---
--- SIGSTOP (Stopped (signal)) @ 0 (0) ---
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
59) = 0
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
59) = 0
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
59) = 0
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
59) = 0
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
59) = 0
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
59) = 0
write(1, "&\234\320+\252~\207\257\274s\316C\247e\266\356\275\"\377"..., 42949672
o59) = 0
...
Any ideas are welcome!
Our Configuration:
name : Cyrus IMAPD
version : v2.2.13 2006/03/30 16:00:03
vendor : Project Cyrus
support-url: http://asg.web.cmu.edu/cyrus
os : Linux
os-version : 2.6.8-3-686-smp
environment: Built w/Cyrus SASL 2.1.20
Running w/Cyrus SASL 2.1.20
Built w/Sleepycat Software: Berkeley DB 4.2.52: (December 3, 2003)
Running w/Sleepycat Software: Berkeley DB 4.2.52: (December 3, 200
3)
Built w/OpenSSL 0.9.8 05 Jul 2005
Running w/OpenSSL 0.9.8 05 Jul 2005
CMU Sieve 2.2
TCP Wrappers
mmap = shared
lock = fcntl
nonblock = fcntl
idle = polla
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/socket
SERVICES {
# add or remove based on preferences
imap cmd="imapd" listen="imap" prefork=0
imaps cmd="imapd -s" listen="imaps" prefork=0
pop3 cmd="pop3d" listen="pop3" prefork=0
pop3s cmd="pop3d -s" listen="pop3s" prefork=0
sieve cmd="timsieved" listen="sieve" prefork=0
# smmapd Daemon for unknown user RRZN
smmapd cmd="smmapd" listen="/var/imap/socket/smmapd" prefork=1
# at least one LMTP is required for delivery
# lmtp cmd="lmtpd" listen="lmtp" prefork=0
lmtpunix cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=0
# this is only necessary if using notifications
# notify cmd="notifyd" listen="/var/imap/socket/notify" proto="udp" prefo
rk=1
}
EVENTS {
# this is required
checkpoint cmd="ctl_cyrusdb -c" period=30
# this is only necessary if using duplicate delivery suppression
delprune cmd="cyr_expire -E 3" at=0400
# this is only necessary if caching TLS sessions
tlsprune cmd="tls_prune" at=0400
# create an index for mailboxes
squatter cmd="squatter -s" at=0300
}
imapd.conf:
configdirectory: /var/imap
admins: cyrus zzismail
altnamespace: yes
annotation_db: skiplist
defaultacl: anyone lrs
defaultdomain: uni-hannover.de
defaultpartition: default
duplicate_db: skiplist
duplicatesuppression: yes
fulldirhash: yes
idlesocket: /var/imap/socket/idle
implicit_owner_rights: lca
lmtpsocket: /var/imap/socket/lmtp
lmtp_downcase_rcpt: yes
maxmessagesize: 0
mboxlist_db: skiplist
notifysocket: /var/imap/socket/notify
partition-default: /disk/imap
popminpoll: 1
poppollpadding: 2
postuser: bxb
quota_db: quotalegacy
quotawarn: 80
sasl_pwcheck_method: saslauthd
sasl_mech_list: plain login
seenstate_db: skiplist
sieve_maxscriptsize: 512
sieveusehomedir: false
sievedir: /disk/sieve
tls_cert_file:/var/imap/server-crt.pem
tls_key_file:/var/imap/server-key.pem
tls_ca_file:/var/imap/cacert.pem
username_tolower: yes
unix_group_enable: no
#virtdomains: on
virtdomains: userid
# allowplaintext: yes
# 01name: rrzn.uni-hannover.de
# timeout: 30
# sharedprefix:
# defaultacl: l
unixhierarchysep: yes
Gerhard Rechel
Regionales Rechenzentrum Universitaet Hannover
Schlosswender Str. 5
rechel@xxxxxxxxxxxxxxxxxxxx - 0511/762-3365
----
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
