Skiplist causing DB problems? (UPDATE)

[Jason Williams]

Evening everyone,

Well, not really sure why this is occuring, but for some reason, upon 
setting up a new server with cyrus with skiplist as specified, at the 
beginning, it shows the following errors/messages in the /var/log/messages log:

 >Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: checkpointing cyrus databases
 >Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: DBERROR: error listing log 
files: DB_NOTFOUND: No matching key/data pair found
 >Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: DBERROR: archive /var/imap/db: 
cyrusdb error

I continued to monitor the server for a better part of the day, trying to 
find out more information.
For whatever reasons, it almost apperas as if Cyrus heals itself: This was 
taken about 5 minutes ago:

Jan 19 16:55:58 obsidian ctl_cyrusdb[475]: recovering cyrus databases
Jan 19 16:55:58 obsidian ctl_cyrusdb[475]: skiplist: recovered 
/var/imap/mailboxes.db (1 record, 552 bytes) in 0 seconds
Jan 19 16:55:58 obsidian ctl_cyrusdb[475]: done recovering cyrus databases
Jan 19 16:55:58 obsidian master[474]: ready for work
Jan 19 16:55:58 obsidian ctl_cyrusdb[476]: checkpointing cyrus databases
Jan 19 16:55:58 obsidian ctl_cyrusdb[476]: done checkpointing cyrus databases

No more errors when checkpointing.
I went back through the files and logs to see if I could pinpoint what was 
going on, but I haven't found anything out of the ordinay.
I was curious if anyone might have any ideas on what is going on?
I'll try to dig up more data, see what I can find.

Jason

>Good morning everyone.
>
>Thought i'd post something very interesting I noticed this morning when I 
>came into the office.
>
>I started this thread last Friday, as I was testing two idential servers 
>(hardware wise) with different configs.
>
>Anyway, I came in this morning and was looking around in the server that 
>was compiled with skiplist.
>
>What is weird is that I am no longer receiving those errors my my message 
>log...
>
> >Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: checkpointing cyrus databases
> >Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: DBERROR: error listing log 
> files: DB_NOTFOUND: No matching key/data pair found
> >Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: DBERROR: archive 
> /var/imap/db: cyrusdb error
>
>Those are no longer showing up...the checkpointing does it's job and 
>reports no errors.
>
>This is very intriguing to me. Did cyrus just need some time to figure out 
>things on it's own? Granted, the last time I touched this server was 
>Friday afternoon.
>
>Anyone have any idea on WHY all the sudden the errors are gone?
>
>I appreciate the help.
>
>A befuddled Jason...
>
>
>>>Important info:
>>>FreeBSD 4.9
>>>Cyrus-Imapd-2.1.16
>>>Cyrus-SASL-2.1.17
>>>I've setup two idential servers.
>>>They are both compiled with BerkeleyDB 4.1.25:
>>>I installed cyrus through the ports tree, but set different options upon 
>>>compile time.
>>>(Configure options)
>>>make WITH_BDB_VER=41 WITH_SKIPLIST=YES install clean
>>>Here is the first server: (Server 1)
>>>name       : Cyrus IMAPD
>>>version    : v2.1.16 2003/11/19 16:45:28
>>>vendor     : Project Cyrus
>>>support-url: http://asg.web.cmu.edu/cyrus
>>>os         : FreeBSD
>>>os-version : 4.9-RELEASE
>>>environment: Cyrus SASL 2.1.17
>>>              Sleepycat Software: Berkeley DB 4.1.25: (December 19, 2002)
>>>              Built w/OpenSSL 0.9.7c 30 Sep 2003
>>>              Running w/OpenSSL 0.9.7c 30 Sep 2003
>>>              CMU Sieve 2.2
>>>              TCP Wrappers
>>>              mmap = shared
>>>              lock = fcntl
>>>              nonblock = fcntl
>>>              auth = unix
>>>              idle = poll
>>>              mailboxes.db = skiplist
>>>              seen.db = skiplist
>>>              subs.db = flat
>>>              deliver.db = db3-nosync
>>>              tls_sessions.db = db3-nosync
>>>
>>>mailboxes and seen, both set with skiplist, as suggested from twiki
>>>Here is the problem, shown in my logfiles:
>>>Jan 16 16:46:01 obsidian master[167]: process started
>>>Jan 16 16:46:01 obsidian ctl_cyrusdb[168]: recovering cyrus databases
>>>Jan 16 16:46:01 obsidian ctl_cyrusdb[168]: skiplist: recovered 
>>>/var/imap/mailboxes.db (1 record, 320 bytes) in 0 seconds
>>>Jan 16 16:46:01 obsidian ctl_cyrusdb[168]: done recovering cyrus databases
>>>Jan 16 16:46:02 obsidian master[167]: ready for work
>>>Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: checkpointing cyrus databases
>>>Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: DBERROR: error listing log 
>>>files: DB_NOTFOUND: No matching key/data pair found
>>>Jan 16 16:46:02 obsidian ctl_cyrusdb[169]: DBERROR: archive 
>>>/var/imap/db: cyrusdb error
>>
>>These are db3 errors, not skiplist errors.  If this is a new server, try 
>>deleting deliver.db, tls_sessions.db and the contents of /var/imap/db