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- In reply to: Björn Fahller: "lately get DBERROR db4: PANIC"
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From: Andrew Morgan (no email)
Date: Fri Sep 14 2007 - 13:20:34 EDT
On Fri, 14 Sep 2007, Björn Fahller wrote:
> Hello list,
>
> Lately I get the below error situations almost daily. I cannot see any
> particular action that causes them. They just do. Perhaps once per day. Once
> the error situation occurrs, I have to "kill -9" a number of stuck processes,
> run ctl_cyrusdb -r, and recovery. After that, I can restart cyrus-imapd, and
> it runs nicely until next time, which can be after a day or two, or only a
> few hours.
>
> The installation is cyrus-imapd-2.2.13 on a 2.6.22.1 linux kernel.
>
> The installation is rediculously small with only 5 users.
>
> Neither ctl_cyrusdb nor recover, tells what errors it corrects.
>
> What can cause the below, and what can I do to avoid it?
> _
> /Bjorn
I know this doesn't actually solve the Berkeley DB problem you are seeing,
but have you considered switching your Cyrus databases from Berkeley DB to
skiplist? Skiplist seems to be much more reliable. The conversion
process is relatively simple and should take only 10 minutes of downtime.
Andy
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