ctl_cyrusdb using 99& CPU

Steinar Bang sb at dod.no
Thu Nov 15 15:33:32 EST 2007

Platform: Intel Pentium II,
	  debian etch,
          cyrus21-imapd 2.1.18-5.1

When starting up cyrus with
 /etc/init.d/cyrus21 start
the only cyrus process running is
 /usr/sbin/ctl_cyrusdb -r
and it's running using ~99% CPU, but with little memory and disk use

What's printed in /var/log/syslog is:
 Nov 15 21:16:04 doohan cyrus/master[12790]: process started
 Nov 15 21:16:04 doohan cyrus/master[12791]: about to exec /usr/sbin/ctl_cyrusdb
 Nov 15 21:16:04 doohan cyrus/ctl_cyrusdb[12791]: recovering cyrus databases

I've left the process for the entire day today, and it still didn't

When I stop cyrus with
 /etc/init.d/cyrus21 stop
ctl_cyrusdb continues to run with the same high CPU use.

When I start cyrus again with
 /etc/init.d/cyrus21 start
I see the following in the syslog:
 Nov 15 21:29:11 doohan cyrus/master[12843]: process started
 Nov 15 21:29:11 doohan cyrus/master[12844]: about to exec /usr/sbin/ctl_cyrusdb
 Nov 15 21:29:11 doohan cyrus/ctl_cyrusdb[12844]: recovering cyrus databases
 Nov 15 21:29:12 doohan cyrus/ctl_cyrusdb[12791]: DBERROR: dbenv->open '/var/lib/cyrus/db' failed: DB_RUNRECOVERY: Fatal error, run database recovery
 Nov 15 21:29:12 doohan cyrus/ctl_cyrusdb[12791]: DBERROR: init /var/lib/cyrus/db: cyrusdb error
 Nov 15 21:29:12 doohan cyrus/ctl_cyrusdb[12791]: done recovering cyrus databases
and the only process running is a new ctl_cyrusdb process (with a new
PID), still with a high CPU usage.

I've run cyrrecover as user cyrus, and it ran without an error, but it
didn't help with the problem.  Still the only process that runs is
ctl_cyrusdb, and the same DBERROR message in syslog when starting cyrus
after stopping it.

Does anyone know what causes this?  Is there some diagnosis or log I
havent found?  I've run cyrreconstruct without any argument, and it
seemed to work on all IMAP folders.  Should I have used an argument?


- Steinar

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