[avahi] How to enable avahi debug log messages?

[Trent Lloyd]

Modify or override the systemd service to pass the --debug flag on startup and it will log them. You can also run it manually but you have to mask and stop avahi-daemon which is a bit fiddly to do reliably due to both dbus and Unix socket activation.

I saw your reply on that launchpad earlier too if I have any ideas I’ll update it the bug. Thanks for the extra info!

- Trent

> On 3 Feb 2021, at 10:26 pm, Elias Rudberg <mail at eliasrudberg.se> wrote:
> 
> Hello,
> 
> I am having this avahi assertion failure problem:
> 
> https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1820584
> 
> In the code I see some avahi_log_debug(...) calls and I was thinking that if that logging was enabled maybe it would give some clues about what goes wrong.
> 
> How is debug logging enabled?
> 
> Are there other debug features that could be used to investigate problems like the above assertion failure, if so how to turn those on?
> 
> This is in Ubutu 20.04 with avahi 0.7.
> 
> Best regards,
> Elias
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