Huge load after update from 2.3.16 to 2.4.12

[Dan White]

On 23/11/11 19:18 +0100, Michael Plate wrote:
>Hi,
>
>I just updated Cyrus Imapd on our somewhat old mailsever (dual-Xeon, but
>8 years now, running gentoo linux) from  2.3.16 to 2.4.12
>
>(options USE="berkdb kerberos pam replication sieve snmp sqlite ssl tcpd
>-afs -mysql -nntp -postgres")
>
>There is no murder and I also could drop sqlite, if better.
>
>After the flawless update, restarting generated a huge load. I believe I
>never had a load of > 50 any time before.
>It even gets "/var/imap/socket/lmtp] timed out while sending MAIL FROM"
>on local delivery of mails.
>
>
>This is 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="127.0.0.1:imap2" prefork=2
>   #pop3         cmd="pop3d" listen="pop-3" prefork=0
>   # Don't forget to generate the needed keys for SSL or TLS
>   # (see doc/html/install-configure.html)
>   imaps         cmd="imapd -s" listen="imaps" prefork=15
>   #pop3s                cmd="pop3d -s" listen="pop3s" prefork=0
>   sieve         cmd="timsieved " listen="sieve" prefork=15
>
>   # at least one LMTP is required for delivery
>   lmtp          cmd="lmtpd -a -D" listen="127.0.0.1:lmtp" prefork=1
>   lmtpunix      cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=2
>
>   # 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=5
>
>   # this is only necessary if using duplicate delivery suppression
>#  delprune     cmd="ctl_deliver -E 3" period=1440
>   delprune      cmd="cyr_expire -E 3 -x" period=1440
>
>   # this is only necessary if caching TLS sessions
>   tlsprune      cmd="tls_prune" period=1440 at=0600
>
>   # squatter indiziert die Boxen fuer die Suche
>   squatter      cmd="squatter -r -s user" period=1440 at=0200
>}
>
>and imapd.conf:
>
>proxyservers:           cyrus
>configdirectory:        /var/imap
>partition-default:      /var/imap/part
>sievedir:               /var/imap/sieve
>
>sieve_sasl_mech_list:   PLAIN
>
>tls_cert_file:          /etc/cyrusimapd/server2009.pem
>tls_key_file:           /etc/cyrusimapd/server2009.pem
>tls_ca_file:            /etc/cyrusimapd/server2009.pem
>
>
>duplicate_db: skiplist
>mboxlist_db: skiplist
>quota_db: quotalegacy
>tlscache_db:skiplist
>
>
>admins:                 cyrus
>
>hashimapspool:          yes
>allowanonymouslogin:    no
>allowplaintext:         yes
>allowusermoves:         yes
>
># Use this if sieve-scripts could be in ~user/.sieve.
>#sieveusehomedir:       yes
>
># Use saslauthd if you want to use pam for imap.
># But be warned: login with DIGEST-MD5 or CRAM-MD5
># is not possible using pam.
>sasl_pwcheck_method:    saslauthd
>sasl_mech_list: LOGIN PLAIN
>autocreatequota: 15000000
>altnamespace: yes
>sasl_auto_transition: no
>quotawarn: 90
>
>
>tls_cipher_list: TLSv1:SSLv3:SSLv2:!NULL:!EXPORT:!DES:!LOW:@STRENGTH
>
>
>allowallsubscribe:      no
>unixhierarchysep:       yes
>lmtp_downcase_rcpt:     yes
>
>annotation_db:          skiplist
>seenstate_db:           flat
>notifysocket:           /var/imap/socket/notify
>
>I have backups of the old packages, but I'man not shure if this will
>work anymore.
>
>Any ideas please ? My bloodpressure can't stand this...

When performing an upgrade from earlier than 2.4.3, all messages are
reparsed, and your cache files are re-generated, when a mailbox is first
opened. You may be able to increase you syslogging levels to get a better
view into what's going on:

http://www.cyrusimap.org/docs/cyrus-imapd/2.4.12/install-configure.php

For other possible upgrade issues, see
http://www.cyrusimap.org/docs/cyrus-imapd/2.4.12/install-upgrade.php

-- 
Dan White