Server Can't Keep Up

Server Discussion
1

Hello,

We run a Sponge based (API 5) pixelmon server. Now, every time the world saves, we get following warning in the console:

Server thread/WARN Can’t keep up! Did the system time change, or is the server overloaded? Running 10504ms behind, skipping 210 tick(s)

Note that our CPU (Intel Xeon E5-1650v2 at 3.50GHz) only runs at ~3% and RAM usage (12GB) is ~67%.
Here is our timings report: Aikar's Timings Viewer

List of installed plugins:

Someone with the same problem or with a solution for this issue?

Thanks in advance!

1 Like
2

If it’s only about the warning, and not about the Server running on 17,5tps:
As long as this is not being spammed, and noticeable in game. This warning can safely be ignored. Its just saying that one tick took way to long … and if that is just because the world-save, this is normal…

3

I know, but it is noticeable ingame.
Every time I get that warning, everything runs up to 14 seconds ‘behind’ ingame.
Is it because our word is ~10GB right now? These lag spikes are really bugging me.

If I looked into the fml-sever.log, I saw the following:
[Server thread/DEBUG] [FML/]: Gathering id map for writing to world save Infinity
And it’s at this exact line the lag spike happens.

4

I’ve had similar issues when the server is running with nobody on it. I’m not sure exactly what the deal is but the server will just spam “Can’t Keep Up” in the console when it’s idle.

1 Like
5

The same problemQAQ