Plex Media Server using large amount of temp storage in Windows 10

Server Version#: 1.24.3.5033757abe6b4
Player Version#: N/A

PMS has been running sonic analysis for a few weeks. It is filling all the available storage space in my C: drive with temporary “music-analysis-input” files, to the point where Windows is giving me warnings about running out of storage. Is this normal? Is there some way to limit the amount of storage space used by PMS?

I would like some more information on this one was well… However, I am not seeing this. I am running this on my QNAP NAS and have set it to use all cores 4 instead of half. However, when I got into that folder, I don’t see a crazy amount. Now that I look, there are more then I think there should be in there but I am talking about 16 and not 100’s. Sounds like something is happening like you have a bad album or something and its looping on that one and filling up the space. Looks like you are on the latest release so that is good. Also look inside those folders and see if you can see a pattern of a bad album (same one over and over) and delete it to fix it.

I got 7200 left of 26K albums. Getting there!

Sonic analysis will only use half of your CPU’s cores by default to analyse one album each.
However, if it crashes during analysis, it might leave the temporary files behind instead of deleting them.
Another reason might be overly large albums with either a lot of tracks in them or tracks with abnormal play length.
So you might wanna put all your audio books into a separate library and disable sonic analysis for that library.

If you’ve restarted Plex server during sonic analysis, you must delete the temporary files yourself.
Best do it this way:
Shut down Plex server
Delete the temporary folders with all those WAV files in them
Start Plex server again

If you have had and fixed any problems where Sonic Analysis got stuck, it can lose track of temp files and not clean them up.

From what I have seen SA is good about keeping track of what it has actually analyzed, though.

If you are truly running out of disk space, this is what I’d do in your position.

  • Stop PMS
  • Delete *.wav from the temp directory
  • Start PMS

I bet it will recover gracefully and re-transcode any wav files that it actually still needed.

You could also try deleting any wav files that were created more than a couple of days ago. That might be a safer middle ground.

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