[nzbget] [sonarr] crashing after running for a longer time

[HydroDiOxide]

Hi there,

I got a Pi2 running nzbget, sonarr and radarr as a systemd service. About a week back I started having problems with reaching the webinterfaces, specifically after they've been running for a longer time. Systemctl status shows that the services are active, though. A reboot of the Pi2 solves that problem for a while, but then, after a couple of hours, usually sooner, I have to reboot again. I haven't experienced this behaviour before.

A bit more details:
nzbget hangs at the 'Loading... please wait' page most of the time. When this is the case, I can connect to the server through a terminal. After a longer time the loading page doesn't show either. No way of reaching it through a terminal then either. Restarting the service doesn't do anything, still hangs at Loading. I can reach the server through a terminal after restarting the service.
Restarting the service does help for sonarr, but just for a short while.
Radarr is doing better and can be reached for a longer time span, but most of its pages hang in loading as well after a while and then it fails altogether. Restarting the service works for radarr as well.

Any idea what could cause this problem and how to fix it?

[HydroDiOxide]

Anyone got any clue? Maybe what logs to check to see what is happening? Or am I posting in the wrong sub forum?

[HydroDiOxide]

I did some more testing and I'm pretty sure I found the cause. All three packages are configured to use storage on a different box. A NAS in my network. I've mounted a couple of shares on the Pi2. However the NAS isn't always running. When it's down the mounts aren't accessible, obviously. I think this is where the problems start.

The other day I did a reboot when the NAS was down, so the (systemctl) mounts weren't up in the first place. All three programs kept on working just fine.

Like I said in my start post, the strange thing is this setup has run fine for a year and a half and started acting up about two weeks ago.

Any help welcome.

[HydroDiOxide]

I should have made this connection earlier, but I didn't: the behaviour described in the issue above in the end leads to the Pi2 crashing altogether. I can't ssh into it any more and have to pull the power.