[Dovecot] 1.2.9 imap crash with backtrace

[Brandon Davidson]

Hi David,

On 1/14/10 3:13 PM, "David Halik" <dhalik at jla.rutgers.edu> wrote:
> 
> FYI, we backed out of the "noac" change today. When our 20K accounts
> started coming to work the NetApp NFS server was pushing 70% CPU usage
> and 25K NFS Ops/s, which resulted in all kinds of other havoc as normal
> services started becoming slow. This server usally runs around 25% and
> 5K, so such a large increase of load was too much to handle.
> 
> During the 12 hour window I didn't see a single uid error as expected,
> but the fix was worse than the problem.

We're pretty loathe to go back to noac as well. We will probably disable
process log throttling (mail_log_max_lines_per_sec = 0) to increase the
reindex speed until Timo comes up with a fix for the crash. This should at
least help the users "get their mail back" in a more reasonable timeframe.

-Brad