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So I followed this youtube video on setting up RTL-433 service on a Ubuntu server. Problem is, it seems to keep failing after a while. Sometimes doing a systemctl start service doesn't work and I will have to reboot the system and then it will work. It will work for a while and later in the day it will suddenly stop. Sometimes I can do a systemctl start, but sometimes not.

Anyone know how I can have this service constantly up and running, and restart if it fails?

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[-] z2k_@beehaw.org 5 points 1 year ago

To have it automatically restart on failure, you can add the following to your systemd unit:

[Service]
Restart=on-failure
RestartSec=5s

See this blog post for more information.

But to find the root cause of why it's failing, you can run systemctl status <service> when it fails to get the most recent logs and hopefully an error as to why it failed.

[-] falchy@sopuli.xyz 6 points 1 year ago* (last edited 1 year ago)

Still relatively beginner, but wouldn't 'journalctl -u .service' also give you in depth logs over a longer period of time?

[-] redawl@sh.itjust.works 2 points 1 year ago

Adding to this, journalctl -fu service will jump to the bottom of the log and effectively tail -F the log so any new output will be appended to your terminal

[-] falchy@sopuli.xyz 2 points 1 year ago

Well that's way easier than my utilization of less or watch or tail that Ive been doing.

[-] redawl@sh.itjust.works 1 points 1 year ago

Yeah it's pretty slick

[-] nick_99@sh.itjust.works 1 points 1 year ago* (last edited 1 year ago)

I second journalctl -f -u SERVICE_NAME.service it's great and just works well. The .service isn't required, but it's a good habit to get into since systemd also has mounts and timers.

[-] z2k_@beehaw.org 1 points 1 year ago

Yes, you can get the full log with journalctl.

[-] llii@feddit.de 1 points 1 year ago* (last edited 1 year ago)

I also would recommend to find out why the service crashes.

You can try to increase the verbosity of rtl-433 with the arguments -v, -vv, -vvv and -vvvv. With every „v“ you get more information on what the program does.

Maybe you can get a hint why it crashes.

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this post was submitted on 11 Jun 2023
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