problem with cyrus-databases

Gunther Grelczak g.grelczak at
Mon Sep 27 16:41:46 EDT 2004


since 2 Years my mailserver is up and running with a self compiled
cyrus 2.1.15 and web-cyradm for administration. Now it very often 
happens that cyrus crashes with his mailboxes.db.

 > ctl_cyrusdb[20562]: DBERROR: critical database situation
 > reconstruct[20565]: DBERROR db4: PANIC: fatal region error detected; 
run recovery

On this page people talk about changing the db-backend from berkely to 
skiplist :

Is it recommended ? Can I do this on the live system by
- stopping cyrus
- changing imapd.conf
- starting cyrus ?????

Does cyrus change the database-format by himself or do I have to run a 
special conversion utility?

My cyrus:


It would be great if someone could give me some additional informations 
and a piece of help.

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