db4 problems with cyrus 2.1.16

[Huaqing Zheng]

On 10/17/05, Febo Aristots <febo.aristots at gmail.com> wrote:
>
> >From: Febo Aristots <febo.aristots at gmail.com>
> >Date: Oct 17, 2005 6:16 PM
> >Subject: db4 problems with cyrus 2.1.16
> >To: info-cyrus at lists.andrew.cmu.edu
>
> >I have had a bad problem with a seemingly corrupted mailboxes.db with
> cyrus-imap 2.1.16
>
>  I seem to have solved the problem this way:
>
>  - stopping cyrus
>  - I deleted tls_session.db and deliver.db
>  - I used ctl_mboxlist -d to convert mailboxes.db into text form
>  - deleted mailboxes.db and /var/imap/db/*
>  - recreated mailboxes.db with ctl_mboxlist -u < textformfile
>  - restarting cyrus

The BerkeleyDB code in cyrus-imapd has a number of issues that I've
never been able to work out fully.  I ended up switching to skiplist
(despite of its performance penalty for random lookups) which pretty
much solved all my problems.  I'd recommend that you look at doing the
same.

--
Huaqing Zheng
Beer and Code Wrangler at Large