Emby Beta 4.10.0.15+: Crashing due to Out of Memory on DS918+ Package Center Install

[DarWun 363]

6 hours ago, DiabboVerdde said:

After collecting several days of logs and monitoring Emby's RSS memory usage with Splunk, I think I've narrowed the problem down considerably. Hopefully this helps identify the root cause. It seems my problem might be different from the one originally described in this post, but the consequence is the same.

Actually, there are some similarities to the issue I reported originally. On my NAS the scheduled task for "Scan media library" was set to run every six hours. Throughout the day it would execute automatically without an issue. Memory usage remained stable. But when I ran the task manually first thing in the morning after the NAS had sat idle overnight memory usage immediately jumped from 1GB to 2GB. The DS918+ only has 4GB of ram, and that sudden jump brings total memory utilized to around 90%. If I do anything else in Emby while that is happening, like navigating from the Dashboard to the Home screen, Emby will become unresponsive. Usually Emby shutdown at that point due to an OOM event. A couple of times recently it was able to recover and the memory was released, usually within the next 30minutes provided I didn't do anything else in Emby.

For me, this only started happening within the last month. It is occurring fairly frequently now (every couple of days). It occurs first thing in the morning after the NAS has sat idle overnight. You identified that "The process is usually sleeping after the scan completes while still holding all of the allocated memory." When the memory usage spike occurred again this morning, I checked the process status. Emby was sleeping.

One thing I noticed is that you are still on DSM 7.3.2. I started seeing the issue just after updating to DSM 7.4-90075. That was coincidentally around the same time that I updated to Emby Beta 4.10.0.15. So I couldn't rule out that it was the DSM upgrade that was the culprit. The fact that you are seeing this on an earlier version of DSM might be evidence that the newer version of DSM is not the culprit.