Cyradm and cyrus-quota problems

Question

I've been getting a cyrus-quota crash every night for a while. Here's part of the crash report:
+Process: cyrus-quota [28870]+
+Path: /usr/bin/cyrus/bin/cyrus-quota+
+Identifier: cyrus-quota+
+Version: ??? (???)+
+Code Type: X86 (Native)+
+Parent Process: launchd [1]+
+Date/Time: 2008-07-10 22:42:24.139 -0500+
+OS Version: Mac OS X Server 10.5.4 (9E17)+
+Report Version: 6+
+Exception Type: EXC_ARITHMETIC (SIGFPE)+
+Exception Codes: EXCI386DIV (divide by zero)+
+Crashed Thread: 0+
+Thread 0 Crashed:+
+0 cyrus-quota 0x000032c8 doquotacheck 319+
+1 cyrus-quota 0x000037cd main 714+
+2 cyrus-quota 0x00001ee6 start 54+
I'm thinking it's a problem with one of the cyrus mailboxes being corrupted. I've tried stopping the Mail services and issuing:
*sudo -u cyrusimap /usr/bin/cyrus/bin/cyrus-quota -f*
*sudo -u cyrusimap /usr/bin/cyrus/bin/ctl_cyrusdb -r*
*sudo /usr/bin/cyrus/bin/reconstruct*
But the crashes persist. I wanted to go in with cyradm and weed out unnecessary mailboxes to see if that helps, but I'm unable to login with the cyradm tool:
*cd /usr/bin/cyrus/admin/*
*./cyradm -user cyrusimap localhost*
Password:
*cyradm: cannot authenticate to server with as cyrusimap*
I've tried setting the password for the cyrusimap user, using *passwd cyrusimap*, thinking it might be an authentication problem, but I still can't login. I read usually cyrus uses sasl to check passwords, but there's no mention of saslpwcheckmethod in /etc/imapd.conf. Does OS X handle passwords differently?
Any help on using cyradm or with cyrus-quota crashes?

Answer 1

Ok, I seemed to have resolved this in my case.
The crash appears (for me atleast) to have been caused by mailboxes in the mail store that did NOT have a quota set.
If you execute 'sudo -u _cyrus /usr/bin/cyrus/bin/cyrus-quota it will list quotas on all mailboxes. Look down the list of users which should be something like this: -
Quota %Used Used Root
10240 65 6726 user/fred
10240 0 0 user/bert
0 15684 user/ernie
In the example above, ernie has no quota set. This seems to cause the 'cyrus-quota -q' crash (maybe a bug where a 'null' value is causing cyrus-quota to bomb-out?).
I resolved it by setting a quota for EVERY user, reconstructing the cyrus db and then fixing quotas via the following steps (please note this is for 10.5 Server only and will not work on earlier versions). Make sure you have a backup of everything first.
1 - Open WGM and ensure ALL users have a quota (I set a high number for those who dont actually need to be quota'd eg. 2gb) Apply changes and quit.
2 - Stop Mail service in server admin
open a Terminal and issue the following commands:
3 - sudo mv /var/imap /var/imap.old
4 - sudo mkdir /var/imap
5 - sudo /usr/bin/cyrus/tools/mkimap
6 - sudo chown -R _cyrus:mail /var/imap
7 - sudo /usr/bin/cyrus/bin/reconstruct -i
8 - sudo -u _cyrus /usr/bin/cyrus/bin/cyrus-quota -f
9 - check all accounts listed have THREE numbers beside them, Quota, Used% and Used.
10 - test it with sudo -u _cyrus /usr/bin/cyrus/bin/cyrus-quota -q (if all is well it will just return a prompt with no error messages).
11 - Start the mail service back up in Server Admin and test thoroughly.
N.B. For me, I HAD to rebuild the database first (Steps 3 - 7), you MAY be able to skip these steps which would preserve the seen-state of your users email.
Good luck.