Server Version#: 1.15.4.993
Player Version#: Firefox 68.0.1 but other clients are used as well. Smart TV’s, ROKU’s.
After a few days my Plex server, running on my QNAP NAS, uses up 1.8 G of memory. Normally it runs at no more than 250 M. The server has a max. of 3 G.
When this happens the clients show buffering. Under normal memory usage buffering does not occur.
The process that uses up the 1.8 G is the Plex DLNA Service.
For example, right now, there are 2 people watching different videos without problem. The server is only using about 175 M. The Plex DLNA Service is only using 46 M.
There appears to be a conditional memory leak problem within this service.
I have been dealing with this problem for a few years now and just restarting the server when the problem arises. But I have noticed that other people are reporting this problem. Hopefully, it will be resolved sometime soon as restarting the Plex server everytime this occurs is a bit of a nuisance.