Hello all.

 

TL;DR Unraid keeps hanging and becoming unresponsive - Seems to happen only when dockers are enabled - Logs Attached Issue happened around 1:45 PM Today Aug 24th.

 

I'm not new to Unraid but I am also not an expert when it comes to fully troubleshooting issues. A few days ago I had a drive with reallocated sectors get disabled. During troubleshooting I found the drive had totally failed. I got a replacement drive and rebuilt. 

 

During rebuild I had ( and am still having apparently) an issue where around 1 to 2 hours Unraid becomes completely unresponsive - no gui, and cannot ping the server. A hard reboot was all that was possible. After reading some other posts on the forum I decided to disable all docker containers - and I was able to rebuild with no issues (approximately 23 hours)

 

Today I turned my dockers back on and I had some issues, My CPU was showing 80% usage and the server was very slow. Main page showed no disk usage, and all dockers were showing 0% CPU usage. I ran top in terminal and saw that Tailscale, Plex and my torrent docker were showing 99% usage. Eventually the server became unresponsive and I rebooted - the usage issue disappeared but my Plex docker wasn't working - after removing it a couple times and adjusting settings I fixed that issue. (not sure if its related but I'd like to be thorough) A few minutes later I decided to fire up Plex in the living room but it wouldn't connect - Try to log into Unraid and its locked up again and I cannot ping the server.  At this point I don't know what is causing the issue.

 

Because of these issues I enabled the syslog to flash option and I will attach here. Not that I know what I was looking for but I was reading through the log and saw a bunch of entries where plugins are being installed - but I never chose to update or install anything at this time.  Curious to know what is doing this.

syslog

Hang happened again, Noticed around 6:30. Attaching another syslog. After looking at it the last thing going on before the forced reboot appears to be fix common problems around 3 something.

 

I removed FCP but attaching the log here in case someone can point me in a better direction.

syslog2

Unfortunately there's not much relevant logged, there's a single call trace but not clear to me if it's software or hardware, one thing you can try is to boot the server in safe mode with all docker/VMs disabled, let it run as a basic NAS for a few days, if it still crashes it's likely a hardware problem, if it doesn't start turning on the other services one by one.

Thanks,  that would make sense because the server didn't crash during the rebuild - when I had dockers disabled. I'll give this a try.