[Dovecot] rc7 crashing under heavy load

[Jeff A. Earickson]

Hey!  Don't hijack somebody else's thread, think up a new subject line.

On Tue, 5 Sep 2006, billl at inetmsg.com wrote:

> Date: Tue, 5 Sep 2006 18:13:33 -0700
> From: billl at inetmsg.com
> To: dovecot at dovecot.org
> Subject: Re: [Dovecot] rc7 crashing under heavy load
> 
> ----- Original Message ----- From: "Chris Wakelin" 
> <c.d.wakelin at reading.ac.uk>
>
>> Too many open files - try increasing the number of file handles for the 
>> Dovecot master process; I use "plimit -n 4096 <Dovecot master pid>"
>> 
>> Login process died too early - are you using NIS? It's too slow for 
>> Dovecot, I think. We create a Dovecot "passwd-file" from NIS overnight and 
>> then "HUP" the Dovecot master process to make it re-read it (we use it only 
>> for UIDs, as we use pam-ldap to Active Directory for authentication, but it 
>> could have the passwords in as well). Dovecot caches the passwd-file so 
>> it's very quick.
>
> Chris,  I am new to Dovecot and this list, and struggled this weekend to get 
> Dovegot to authenticate the username against a "passwd-file" and using pam to 
> authenticate the passwords.  I was wondering if you could tell me what the 
> format of the "passwd-file" should look like.  I want to the username to be 
> user at domain, and tried stripping the domain part for username/password 
> authentication against pam, but that hasn't worked for me, so I thought I 
> would use a "passwd-file" like your doing.  Also, what does your dovecot.conf 
> section look like for using a "passwd-file" and pam?
>
> Thanks for any help you can provide!
>
> Bill