Error: conn unix:/run/dovecot/stats-writer : Timeout waiting for handshake response

[filipe at digirati.com.br]

soon after starting dovecot these errors start to appear. I will send 
the first errors after doing a service dovecot start

     Jul 15 10:08:16 box5 dovecot: pop3: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: auth: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap-login: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: lmtp: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap-login: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     ul 15 10:08:16 box5 dovecot: imap: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap-login: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap-login: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: message repeated 5 times: [ 
imap-login: Error: conn unix:/run/dovecot/stats-writer 
(pid=4137823,uid=0): Timeout waiting for handshake response]
     Jul 15 10:08:16 box5 dovecot: imap: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: message repeated 4 times: [ imap: 
Error: conn unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout 
waiting for handshake response]
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: message repeated 3 times: [ 
managesieve: Error: conn unix:/run/dovecot/stats-writer 
(pid=4137823,uid=0): Timeout waiting for handshake response]
     Jul 15 10:08:16 box5 dovecot: lmtp: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: lmtp: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap-login: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: lmtp: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: pop3: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: imap: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: lmtp: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: message repeated 2 times: [ lmtp: 
Error: conn unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout 
waiting for handshake response]
     Jul 15 10:08:16 box5 dovecot: pop3: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: message repeated 6 times: [ pop3: 
Error: conn unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout 
waiting for handshake response]
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: managesieve: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: lmtp: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: message repeated 2 times: [ lmtp: 
Error: conn unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout 
waiting for handshake response]
     Jul 15 10:08:16 box5 dovecot: pop3: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response
     Jul 15 10:08:16 box5 dovecot: pop3-login: Error: conn 
unix:/run/dovecot/stats-writer (pid=4137823,uid=0): Timeout waiting for 
handshake response


All stats configuration is as default seeing by dovecot -a

    service stats {
       chroot =
       client_limit = 0
       drop_priv_before_exec = no
       executable = stats
       extra_groups =
       group =
       idle_kill = 4294967295 secs
       privileged_group =
       process_limit = 1
       process_min_avail = 0
       protocol =
       service_count = 0
       type =
       unix_listener stats-reader {
         group =
         mode = 0600
         user =
       }
       unix_listener stats-writer {
         group = $default_internal_group
         mode = 0660
         user =
       }
       user = $default_internal_user
       vsz_limit = 18446744073709551615 B
    }


I don't use this dovecot stats service and I don't have metrics 
configured. Actually I wanted to know if it is possible to deactivate it 
because we do not use it here in the company.

On 15/07/2022 06:45, Aki Tuomi wrote:
> Do you have anything else in the logs? Did you increase client_limit for stats service?
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