cyrus-imapd 2.2 db3 or db4?

Patrick Morris pmorris at
Tue May 6 17:03:30 EDT 2003

I had some major problems with mailboxes.db and delivery.db and db4 
under Solaris 9.  Usually within about an hour or so of startup I'd 
start seeing corruption in them.  Moving to skiplist solved the problem, 
though -- I didn't attempt relinking against db3.

The old 2.0 system under db3 and Solaris 8 was solid as rock -- two 
years of heavy usage with no database corruption ever.

Henrique de Moraes Holschuh wrote:

>On Tue, 06 May 2003, Ken Woodhams wrote:
>>Hi. I just wanted to get a general consensus from current 2.2 
>>users. What has your experience been with Sleepcat DB3 and DB4? 
>>Which one would you recommend using and why? I was leaning 
>>towards DB3 since it's been around for a while (more experience 
>>and stable?) but I was curious to know if there are any 
>>performance or security gains with using DB4. 
>We have a very modest system with about 1000 users, 5 pop3 logins per
>second, a few concurrent imap logins from the webmail system.
>Using DB3.2, we NEVER had any problem whatsoever. no lockers, no hangs,
>I am not switching the Debian Cyrus packages to DB4 until I am forced to do
>so :)  too many nightmare stories for my tastes.

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