PlexScriptHost.exe High CPU Usage - 100% load on 1 core

[smoking_bacon]

I’ve been using Plex for a while and I love it!
For the past couple of weeks I have been having an issue where one of the multiple instances of PlexScriptHost.exe fully loads one of my cores. Usually only one PlexScriptHost.exe turns into a runaway thread, but I also once observed around 5 or 6 threads exhibiting the same behavior causing 100% CPU usage.

I turned on debug and verbose logging and left the server relatively unused for a couple of days. I have attached the logs and a minidump of the culprit.

I’d appreciate if someone could help me resolve this issue, Plex is just too convenient to replace!

Please tell me what further information I could provide.

Platform: Windows 10 x64 ver.1511 Build 10586.122
Plex Media Server: 0.9.15.6.1714-7be11e1 (also was an issue in version f46e7e6)

[smoking_bacon]

I also noticed that Plex performs file system operations every 2 seconds regardless of user activity. Maybe it’s related to the issue?

[koalabear84]

Late reply. Did you also have Networx installed at that time?

If so, this might be a related topic:

PlexScriptHost.exe CPU usage

Hi all, I’ve tried googling and found a few old threads but nothing with a solution, my Plex server 0.9.16.6 (Windows 10) has recently started running a Python exe called ‘PlexScriptHost.exe’. It uses about 15% CPU usage at all times, which seems odd, and keeps my CPU fan spinning more than it needs to. I’ve attached my most recent log file, it’s been happening for some time I just hadn’t been able to pinpoint which application was calling python. Anyone know what’s causing this? Thanks,

[smoking_bacon]

Yes, I was using Networx at the time and still am. Fortunately, either it or Plex were updated and the issue resolved itself a couple of months later.

[koalabear84]

Hmmm OK. I unfortunately still have this issue, exactly every 2 hours.