Jun 04, 2020 23:04:40.942 [26336] ERROR - [Transcoder] [tcp @ 043acac0] Connection to tcp://127.0.0.1:32400 failed: Error number -138 occurred
Jun 04, 2020 23:04:58.617 [30404] WARN - HTTP error requesting GET http://127.0.0.1:32400/:/metadata/notify/cullTimeline?librarySectionID=6&sinceTime=1591274698 (7, Couldn't connect to server) (Failed to connect to 127.0.0.1 port 32400: Address already in use)
This is the issue that was investigated in another forum thread and summarized here Transcoder crashes on access errors - #27 by sa2000
Basically we are running out of tcp ip ports and has been seen to happen when scanning large movies libraries - with more than 4000 movies
It was a change in curl that resulted in us using 6 ports for every movie and the ports cannot be reused till TIME_WAIT expires.
There is an open issue with our development team.
Do you have large movies libraries ?
It is possible that the new Movie Scanner avoids this issue - see the forum preview release New Plex Media Server movie scanner and agent preview