[Dovecot] imap-login crashes after upgrade to Dovecot 1.2.8 Linux 64-bit

[Chris Wakelin]

On 18/12/2009 15:08, Timo Sirainen wrote:
>>  We have something in the
>> region of 1000 concurrent connections and login_max_processes_count *
>> login_max_connections = 128 * 256 should be enough for 32000+ of them!
>>
>> Would it be better to have login_max_connections = 1024 (or even higher)?
> 
> Yes. If you have only one CPU/core you shouldn't have more than 2 login
> processes.
> 
>> I'm also confused as to why we never saw the problem on the Solaris box
>> (with more connections as it was during term time).
> 
> It was probably doing a better job than Linux of distributing
> connections to processes.

Ah! That makes sense, as the Solaris box had four processors and 4 * 256
would have probably been enough most of the time. It wouldn't surprise
me if the Solaris kernel is better at this as well.

Best Wishes,
Chris

-- 
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Christopher Wakelin,                           c.d.wakelin at reading.ac.uk
IT Services Centre, The University of Reading,  Tel: +44 (0)118 378 8439
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