This issue is ongoing as of 1.19.51. With a clean install of ubuntu server and only the Minecraft BDS running with two players, the memory usage started out on server start with around 270 MB then slowly increased over around 4 hours time up to 2.4 GB of memory usage. Both players logout and even after thirty minutes logged out the memory usage was still at 2.4 GB. After testing the memory usage increases at a faster rate when loading chunks, even chunks that were loaded very recently (riding a horse back and forth 500 block distance). However the usage still continues to climb (at a lower rate) even when just standing there. Only restarting the server released the memory.
tct1997t.2
This issue is ongoing as of 1.19.51. With a clean install of ubuntu server and only the Minecraft BDS running with two players, the memory usage started out on server start with around 270 MB then slowly increased over around 4 hours time up to 2.4 GB of memory usage. Both players logout and even after thirty minutes logged out the memory usage was still at 2.4 GB. After testing the memory usage increases at a faster rate when loading chunks, even chunks that were loaded very recently (riding a horse back and forth 500 block distance). However the usage still continues to climb (at a lower rate) even when just standing there. Only restarting the server released the memory.