#After migrating from PMM to Kometa, Plex server is very slow/unresponsive

1 messages · Page 1 of 1 (latest)

stray gust
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I migrated from PMM to Kometa on a QNAP NAS. There was some hiccups but after some guidance here, I got it working. Since then, the Plex server itself has been very slow and unresponsive, failing to loading poster artwork (and timing out), sometimes refusing to play media. Attempting to browse my libraries cause the CPU on the NAS to get pegged at 100%, which never happened before. This is without anything playing or being transcoded, and no other background tasks are taking place on the NAS.

📎 meta.log
dawn zephyrBOT
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📝 If you want to review this again, tunkhannock:
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Welcome @stray gust!

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dawn zephyrBOT
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**User Info**

Author of Linked Message: Tunkhannock
Person who Invoked the Command: Tunkhannock
File Name: meta.log

Table of Contents:
Page 01: User Info
Page 02: Kometa Info
Page 03: Kometa Summary Info
Page 04: Kometa Config.yml YAML Validation ✅
Page 05: Plex Configuration - Section 1
Page 06: Plex Configuration - Section 2
Page 07: Plex Configuration - Section 3
Page 08: Plex Configuration - Section 4
Page 09: Plex Configuration - Section 5
Page 10: Plex Configuration - Section 6
Page 11: Plex Configuration - Section 7
Page 12: Plex Configuration - Section 8
Page 13: Plex Configuration - Section 9
Page 14: Plex Configuration - Section 10
Page 15: Plex Configuration - Section 11
Page 16: Plex Configuration - Section 12
Page 17: Plex Configuration - Section 13
Page 18: Plex Configuration - Section 14
Page 19: Plex Configuration - Section 15
Page 20: Rec 01 - ❌ [ERROR]
Page 21: Rec 02 - ❌ CORRUPT FILE ERROR
Page 22: Rec 03 - ❌ METADATA ATTRIBUTE ERRORS
Page 23: Rec 04 - ❌ METADATA LOAD ERRORS
Page 24: Rec 05 - ❌ OVERLAY FONT MISSING
Page 25: Rec 06 - ⚠️ [WARNING]
Page 26: Rec 07 - ⚠️ LEGACY SCHEMA DETECTED
Page 27: Rec 08 - ⚠️ NO ITEMS FOUND IN PLEX
Page 28: Rec 09 - ⚠️ PLEX REGEX ERROR
Page 29: Rec 10 - 💬 CONVERT WARNING
Page 30: Rec 11 - 💬💡️ PLEX DB CACHE ADVICE

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balmy matrixBOT
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Kometa Performance Tips

Use Kometa caching where possible: https://kometa.wiki/en/latest/config/settings/?h=cache#cache

Run Kometa after PLEX scheduled tasks so 5am is a good time for that since PLEX runs scheduled tasks between 3-5am

Consider Database Cache Size (MB) settings in PLEX under Settings, Library, Database Cache Size (MB). 2GB = 2048MB or set it in Kometa config.yml file: https://kometa.wiki/en/latest/config/plex/?h=db_cache#plex-attributes

Look into using the ChuckPA dbrepair tool to deal with plex db issues/fixes(He is an employee of Plex)

:one: - remove video thumbnail creation on your libraries (Plex Web UI settings for the Library under Advanced)
:two: - remove credit detection on your libraries (Plex Web UI settings for the Library under Advanced)
:three: - remove intro detection on your libraries (Plex Web UI settings for the Library under Advanced)
:four: - Ensure that other apps that touch Plex do not coincide with each other. Think of TCM, Plex Autoscan, Refresh Metadata, Plex Maintenance

At the end of the day, everyone's system will have different performance characteristics. Some have to implement all of these before MOST of the Busy DB Sleeping 200ms issues go away.

Thanks for using Kometa
limpid citrus
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There weren't any major code changes as part of the rebrand, so it seems unlikely that the PMM->Kometa change would have caused this, but a simple test would be to stop and disable Kometa and see if the behavior changes.

arctic ledge
balmy matrixBOT
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Anything further needed here? If not, please type /close and hit enter. Please respond within 24 hours of this message or it will be archived.

stray gust
# arctic ledge !afnh

I'm still troubleshooting, but using Plex's "Optimize Databases" function seems to have helped.

arctic ledge
stray gust
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Keeping it open for the moment, "Optimize Databases" didn't fix the problem. It only started when I replaced PMM with Kometa. I'm still trying to figure out why

sand musk
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#1234207761475043459 message

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Did you try this?