Thanks Frank. Followed the URL and could not find any luck.

Is there a way to change the value of 'max open files' of dovecot. I have tried to set the value in /etc/default/dovecot by setting ulimit. But the value is not getting applied. Could anyone help on this regard.

Fasil.

On 08/16/2012 09:17 AM, Frank Bonnet wrote:

hello

here some useful informations

http://posidev.com/blog/2009/06/04/set-ulimit-parameters-on-ubuntu/

Envoyé de mon iPhone.

Le 16 août 2012 à 02:52, Fasil <mailadmin@cubixys.com> a écrit :

...

Dear all,

Thank you all for such a wonderful support. Hats off to all :)

Few times I came across imap login issues where new users will not be allowed to login. /var/log/mail.err shows the error below Aug 12 07:57:46 mail dovecot: dovecot: pipe() failed: Too many open files Aug 12 07:57:46 mail dovecot: dovecot: Temporary failure in creating login processes, slowing down for now Aug 12 07:58:46 mail dovecot: dovecot: pipe() failed: Too many open files Aug 12 07:59:46 mail dovecot: dovecot: pipe() failed: Too many open files Aug 12 08:00:46 mail dovecot: dovecot: pipe() failed: Too many open files

I have a dovecot (V 1.2.9) +postfix (V 2.7.0) setup on ubuntu 10.04

# ulimit -Hn 1024

# ulimit -Sn 1024

# cat /proc/sys/fs/file-max 1238548

# cat /proc/pidof dovecot/limits | grep 'Max open' Max open files 1024 1024 files

Please advice how to get rid off this.

Fasil.

Thanks for the input Jack. As I am using debian, the location to edit the ulimit is /etc/default/dovecot. There is no effect even after changing this value. I tried putting the value in the /etc/init.d/dovecot script without success.

Fasil.

On 10/18/2012 05:13 AM, Jack Bates wrote:

I'm using RHEL6 instead of ubuntu, but check the startup scripts. In RHEL's case, the following file is sourced, so I updated it instead of the startup scripts.

cat /etc/sysconfig/dovecot # Here you can specify your dovecot command line options. # #OPTIONS="" ulimit -n 4096 ulimit -u 5120

In addition, I had to also up the max allowed processes in the dovecot config. 2.x and 1.x are different on this.

http://wiki1.dovecot.org/LoginProcess <-1.x method

Jack

On 10/17/2012 6:16 PM, Fasil wrote:

...

Thanks Frank. Followed the URL and could not find any luck.

Is there a way to change the value of 'max open files' of dovecot. I have tried to set the value in /etc/default/dovecot by setting ulimit. But the value is not getting applied. Could anyone help on this regard.

Fasil.

On 08/16/2012 09:17 AM, Frank Bonnet wrote:

...

hello

here some useful informations

http://posidev.com/blog/2009/06/04/set-ulimit-parameters-on-ubuntu/

Envoyé de mon iPhone.

Le 16 août 2012 à 02:52, Fasil <mailadmin@cubixys.com> a écrit :

...

Dear all,

Thank you all for such a wonderful support. Hats off to all :)

Few times I came across imap login issues where new users will not be allowed to login. /var/log/mail.err shows the error below Aug 12 07:57:46 mail dovecot: dovecot: pipe() failed: Too many open files Aug 12 07:57:46 mail dovecot: dovecot: Temporary failure in creating login processes, slowing down for now Aug 12 07:58:46 mail dovecot: dovecot: pipe() failed: Too many open files Aug 12 07:59:46 mail dovecot: dovecot: pipe() failed: Too many open files Aug 12 08:00:46 mail dovecot: dovecot: pipe() failed: Too many open files

I have a dovecot (V 1.2.9) +postfix (V 2.7.0) setup on ubuntu 10.04

# ulimit -Hn 1024

# ulimit -Sn 1024

# cat /proc/sys/fs/file-max 1238548

# cat /proc/pidof dovecot/limits | grep 'Max open' Max open files 1024 1024 files

Please advice how to get rid off this.

Fasil.