Hi, is there a way to reduce loglevel, eg log only warning or higher? I just saw that /var/log/messages is 1.6GB big after half months of use.

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Have you checked what is logged?
You should check what it is complaining about. My /var/log/messages is only 1 MB in total after 1 year.
But then I found out it stopped logging after 3-4 months. Can’t remember why.

Everything that “docker-compose logs” would print out lands in /var/log/messages. Hence the size and my wish to change the log level.

That’s strange, my /var/log/messages (running Rocky 8) contains only the system logs and some of the system services. Did you setup. Did you override the logging to use syslog? (docs.mailcow.email Icon Logging - mailcow: dockerized documentation

docs.mailcow.email Icon docs.mailcow.email
Logging - mailcow: dockerized documentation
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docs.mailcow.email
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And if so, did you configure services like logrotate to rotate the logs every day and compress the old logs?

Sorry for noob question, but where do I find a “/var/log/messages”?

In my “/opt/mailcow-dockerized” location there is nothing like this and also in “/var/log” there are no “messages”.

    henningsieh Which OS are you using? It depends on the OS 🙂 RedHat derivates use /var/log/messages, Debian derivates use /var/log/syslog i.e.

        DocFraggle

        I run my Mailcow dockerized on a VPS at Contabo Hosting with an underlying Ubuntu 22.04.4 LTS.

        “/opt/mailcow-dockerized” looks like this:

          It’s at /var/log/syslog if you are running Ubuntu

          Thank you, I found it with a size of 8 MB. :-)

          root@vmd104158:/# ls -lh /var/log/syslog
-rw-r----- 1 syslog adm 8.1M Feb 16 09:12 /var/log/syslog
root@vmd104158:/#

          start to setup logrotation on your host

          Ok, so it looks like podman saves all generated logs to /var/log/messages while normal docker discards that information. Sure I can redirect the logs and rotate and delete but why is mailcow so chatty to begin with? The logs you get from “docker-compose logs” are filled with too much useless information. Changing loglevel would be helpful to focus on the real important information.

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