[mythtv] Crash in ~DVBChannel() - Wiki comments

[Bill Meek]

Hi Roger,

I looked at the Wiki. Suggest removing the: Environment=HOME=/~/.mythtv line
because tilde expansion doesn't seem to work in the .service files. Plus,
you've set User=mythtv and that will set HOME to (in my opinion) the proper
value of /home/mythtv. I suspect you didn't want the leading slash either.

I just now read about BindsTo=, that's interesting, I need to try it out. My only
concern is that it sounds like a mysql failure mid-recording would stop the recording.

I prefer to use mythbackend --quiet... on the ExecStart line.

That way systemd isn't getting any output that needs to be redirected with
the StandardOutput and StandardError lines, so I don't have them either. And
like you, I prefer --logpath. Users of --syslog would want --quiet too so
as not to get double logging in the journal. I'm thinking that for the
average user, --syslog might be a better choice so they don't have to worry
about configuring logrotate etc.

The filename, /etc/systemd/system/mythbackend.service has potential problem.
If a user *somehow* gets Mythbuntu's .service, it will be in
/lib/systemd/system/mythtv-backend.service and since the names are different,
both would be started. I'd suggest naming it: /etc/systemd/system/mythtv-backend.service.

I really like the concise version you've added. Always thought the
other one was getting too long (and I've seen users copy it verbatim
rather than adjusting it.)

Just my 2 cents. I'd be happy to make changes, but don't want to stomp on
your work without getting your opinion.

Full disclosure, I'm still learning about systemd.

On 05/18/2017 06:25 AM, roger wrote:
...
> I have updated the systemd page in the mythtv wiki with an example that stops the database being shut down before the backend is. It also logs
> stderr to the systemd journal and runs mythbackend with the core resource limit set to infinity (N.B. this setting is further constrained by the
> rlimit of whatever user id the backend is set to up to use, in this case "mythtv").


-- 
Bill