[Dovecot] failed: Too many open files

[Masaharu Kawada]

Hi Timo-san, Tony-san,

Thank you very much for your comments. In the output of a 'lsof', I see 
a lot of the following messages.

 >dovecot-a  7346              root   10u     sock        
0,5               181268 can't identify protocol
 >dovecot-a  7346              root   11u     sock        
0,5               277537 can't identify protocol

I found a quite similar issue posted at:
http://www.mail-archive.com/dovecot@dovecot.org/msg07229.html

I would like to make sure if there is no way to avoid this issue
without updating the dovecot package.


Sincerely,

Timo Sirainen wrote:
> On Fri, 2010-03-26 at 11:15 -0400, Tony Rutherford wrote:
>   
>> Run "lsof" or something similar to see what open filedescriptors there 
>> are.  I ran into this same issue...and it had nothing to do with 
>> Dovecot...Dovecot was just unlucky enough to be requesting to open a 
>> file when the limit was already reached.
>>     
>
> The error message for that situation is actually different:
>
> Too many open files in system
>
> vs.
>
> Too many open files
>
>