Hi, I'm seeing the same, but I think it's every time the lda is called to deliver mail to a mailbox. Postfix runs it as vmail:vmail.

My socket is owned by root:dovecot (on Debian buster).

Should I add vmail to the dovecot group to enable it to write? Or is changing the socket to 0666 safer?

I'm also a little confused, because according to https://doc.dovecot.org/configuration_manual/stats/ no statistics are logged by default, and I have no mentions of 'metric' anywhere in my config, so why is the write even attempted? (dovecot 2.3.4)

Cheers, Richard

On 24/10/20 4:46 am, Aki Tuomi wrote:

Hi!

You can ignore it, or you can change the socket permissions to 0666.

service stats { unix_listener stats-writer { mode = 0666 } }

Aki

...

On 23/10/2020 17:52 mj <lists@merit.unu.edu> wrote:

Hi,

Nobody?

It happens so rarely, and the system appears to be running fine otherwise, should I just ignore it?

Still makes me wonder way it would happen at all..?

MJ

On 10/22/20 12:53 PM, mj wrote:

...

Hi,

We are getting very occasional messags from dovecot:

...

net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied

Over the last week, the message appeared five times. (on a mail server with over 100 users, to that's basically almost never)

doveconf -n below

...

2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf

Pigeonhole version 0.5.4 ()

OS: Linux 4.19.0-10-amd64 x86_64 Debian 10.6 xfs

snip...

...

service stats { unix_listener stats-reader { group = vmail mode = 0660 user = vmail } unix_listener stats-writer { group = vmail mode = 0660 user = vmail } }

and the on-disk permissions are:

...

root@dovecot:~# ls -l /var/run/dovecot/*stat* srw------- 1 root  root  0 Oct  6 00:25 /var/run/dovecot/old-stats prw------- 1 root  root  0 Oct  6 00:25 /var/run/dovecot/old-stats-mail prw------- 1 root  root  0 Oct  6 00:25 /var/run/dovecot/old-stats-user srw-rw---- 1 vmail vmail 0 Oct  6 00:25 /var/run/dovecot/stats-reader srw-rw---- 1 vmail vmail 0 Oct  6 00:25 /var/run/dovecot/stats-writer

We're not sure what makes the Permission denied error happen...

Anyone with an idea?

MJ