1.15.1, 1.17.1, 21w39a, 21w40a
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
The server is crashing often - on the order of minutes. It also is taking a very long time to execute some operations like eating, smelting, and brewing.
This is happening in a chunk that has a great deal of redstone and a great many villagers and animals. The server seems stable away from this chunk.
This world was stable with very little lag in 1.14.4. I have uploaded the world in its current state as well as its last state in 1.14.4. Link provided below. I have also uploaded a screenshot of the server system specs to the same location.
I am currently running the client from the same machine as the server.
Additional notes that may be useful:
- Animals and villagers move in short steps with pauses instead of smoothly.
- Golems in lava take a very long time to die, with each sound occurring with a long pause in between.
- I reached an impasse trying to brew a potion. The server crashes before the slow operation can complete. Then, when the server restores, the blaze rod is used but the potion brewing starts over.
- CPU utilization seems fine. Uploaded screenshot.
Link to worlds and specs: