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WebPanel => E-Mail => Dovecot => Topic started by: floriandinca on October 29, 2015, 04:34:54 AM

Title: Dovecot running slow
Post by: floriandinca on October 29, 2015, 04:34:54 AM

Dovecot is running slow when sending email's through imap,
Dovecot warings:

Code: [Select]

Oct 29 00:06:50 imap: Warning: Time jumped forwards 334 seconds
Oct 29 00:06:50 imap: Warning: Time jumped forwards 334 seconds
Oct 29 00:06:50 imap: Warning: Time jumped forwards 333 seconds
Oct 29 00:06:50 imap: Warning: Time jumped forwards 333 seconds
Oct 29 00:06:50 imap: Warning: Time jumped forwards 333 seconds


Code: [Select]

Oct 28 11:13:54 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 11:17:56 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 11:19:08 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 11:21:18 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 11:22:43 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 11:23:46 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 12:17:37 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 12:18:42 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 12:19:47 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 13:11:37 master: Warning: service(imap-login): process_limit reached, client connections are being dropped
Oct 28 13:13:17 master: Warning: service(imap-login): process_limit reached, client connections are being dropped


Title: Re: Dovecot running slow
Post by: Igor S. on October 29, 2015, 12:05:35 PM

Hi.

You can try increase process_limit or switch login to performance mode:

Code: [Select]

service imap-login {
  inet_listener imap {
    port        = 143
  }
  service_count = 0 # performance mode. set to 1 for secure mode
  process_min_avail = 1
}

Title: Re: Dovecot running slow
Post by: floriandinca on October 30, 2015, 05:12:36 AM

thanks, that should solve one problem, but what about the time?

Title: Re: Dovecot running slow
Post by: Igor S. on November 01, 2015, 07:33:16 AM

Quote from: floriandinca on October 30, 2015, 05:12:36 AM

thanks, that should solve one problem, but what about the time?

Nobody knows your configs and server. Guessing only. Provide us more details.

Title: Re: Dovecot running slow
Post by: floriandinca on November 03, 2015, 07:54:12 AM

CPU Model: Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz
CPU Details: 6 Core (1898 MHz)
Distro Name: CentOS release 6.6 (Final)
Kernel Version: 2.6.32-504.23.4.el6.x86_64
Platform: x86_64 [hyperv]

Standard Centos web panel settings, running postfix + dovecot +Kaspersky Security for Mail Server

Title: Re: Dovecot running slow
Post by: Igor S. on November 03, 2015, 10:02:46 AM

Hi.

I couldn't reproduce the issue, and it works great in the default version.
Try to check your "Kaspersky Security for Mail Server" becuse it is not CWP's service.