You have a lot of errors in your logs.
- This implies all the
inotifyslots have been used up monitoring directories and there are none left for the transcoder (it needs 2). Do you have more than 8192 directories being monitored (in total) and, if so, have you increased the size of the inotify table?
Nov 27, 2020 08:32:58.605 [0x7fa990e20700] DEBUG - Request: [192.40.64.15:20189 (WAN)] GET /status/sessions/background (17 live) TLS GZIP Signed-in Token (SixSpeedDeath)
Nov 27, 2020 08:32:58.606 [0x7fa97b553700] DEBUG - Completed: [192.40.64.15:20189] 200 GET /status/sessions/background (17 live) TLS GZIP 0ms 397 bytes (pipelined: 5)
Nov 27, 2020 08:32:58.609 [0x7fa90b7fe700] ERROR - Couldn't get size of file "/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Cache/Transcode/Sync+/24682358/51/61265.mkv.temp": boost::filesystem::file_size: No such file or directory: "/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Cache/Transcode/Sync+/24682358/51/61265.mkv.temp"
Nov 27, 2020 08:32:58.609 [0x7fa90b7fe700] ERROR - TranscodeJobManager: file "/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Cache/Transcode/Sync+/24682358/51/61265.mkv.temp" does not exist
Nov 27, 2020 08:32:58.609 [0x7fa90b7fe700] ERROR - TranscodeJobManager: transcode job failed
Nov 27, 2020 08:32:58.609 [0x7fa90b7fe700] DEBUG - TranscodeJobManager: [Running] job 296949cf-c246-4eb5-b521-0676ef99570d complete - failure / transcoderError
Nov 27, 2020 08:32:58.610 [0x7fa8f7fff700] DEBUG - BPQ: onAsynchronousJobComplete
- This is bad media or systemic failure. Impossible to discern further as DEBUG was disabled during that time,
Nov 27, 2020 02:03:49.043 [0x7fa991e22700] INFO - Plex Media Server v1.21.0.3616-d87012962 - CentOS Linux PC x86_64 - build: linux-x86_64 redhat - GMT -08:00
Nov 27, 2020 02:03:49.043 [0x7fa991e22700] INFO - Linux version: 7 (Core), language: en-US
Nov 27, 2020 02:03:49.043 [0x7fa991e22700] INFO - Processor Six-Core AMD Opteron(tm) Processor 2435
Nov 27, 2020 02:03:49.043 [0x7fa991e22700] INFO - /usr/lib/plexmediaserver/Plex Media Server
Nov 27, 2020 02:03:49.038 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.038 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.039 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.039 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.039 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.039 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.040 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.040 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.040 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.041 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.041 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.041 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.041 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.042 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.042 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.042 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.043 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Nov 27, 2020 02:03:49.043 [0x7fa9727fc700] ERROR - [Transcoder] Error while decoding stream #0:1: Invalid data found when processing input
Nov 27, 2020 02:03:49.043 [0x7fa8f7fff700] DEBUG - Streaming Resource: Usage: 0kbps of WAN bandwidth, 0 streaming transcode slots, and 1 static transcode slots across 1 sessions
Nov 27, 2020 02:03:49.043 [0x7fa9727fc700] ERROR - [Transcoder] [aac @ 0xe30bc0] channel element 0.0 is not allocated
Sync will fail if the inotify table is full as well.