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Forge 1.16.2 - Server crashes sometimes when Users logging in and out

NightmareKP

By NightmareKP
in Support & Bug Reports

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NightmareKP Tree Puncher

NightmareKP

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I have a problem with my Forge Server. The Problem was not there all the time. I think the Server devolved the Problem round about Version 1.16.1. But I’m not sure. The Problem is quite simple but the cause is...idk. The Problem is: That sometimes, it feels like a 50/50 chance, when a player logs into the server or is logging out, the server is crashing. You see in the logs that the server hang up and then considers himself to be crashed. That’s all I can see in the logs and that’s fucking confusing.

 

The Clients connecting are Forge Clients on the latest Version. We are using some Mods: DynMap, NetherPortalFix, oneplayersleeping, TorchMaster. And there was the mod simplefarming on the Server. The Problem was already there before i added the first four Mods and the server was already running without problem with simplefarming on it. So it has nothing to do with the Mods.

 

Debug-1 from 01-02.10.2020

Latest Log 02.10.2020

 

What are your thought guys? We think there is maybe a problem with Ubuntu and the Network handling. The Ubuntu version is 18.04.04.

 

DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

Neither of these show a crash, can you be more specific about what you mean by "crashes"?

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

NightmareKP Tree Puncher

NightmareKP

Posted
  • Author
Posted (edited)
  On 10/2/2020 at 6:24 PM, DaemonUmbra said:

Neither of these show a crash, can you be more specific about what you mean by "crashes"?

Expand  

Thats the thing...its not a hard crash, its so that the server is hanging so hard that the Server thinks that he is crashed and is forcing a shutdown. You can see that in the last 6 entrys on the latest Log.

 

I consider that as a soft crash, because the lagging and the force shutdown are connected and i have no influence on that.

Edited by NightmareKP
DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

I don't even see anything about the server watchdog, which is what kills it if that happens... there aren't any hs_err_pid files in the server are there?

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

This crash and the debug.log are from separate runs. All I can assume now is that whatever you're running the server on can't handle it.

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

NightmareKP Tree Puncher

NightmareKP

Posted
  • Author
Posted
  On 10/3/2020 at 5:16 PM, DaemonUmbra said:

This crash and the debug.log are from separate runs. All I can assume now is that whatever you're running the server on can't handle it.

Expand  

It must be relatet, its the latest one from 02.10. But i will also give a report for the 01.10.

 

crash-2020-10-01_07.51.27

 

And the Server should be able to tun the server without any problems.

Specs:

i7-4790k (4 x 4,0 GHz)

32 GB DDR3

On a 64 Bit Ubuntu with plenty of fre space.

 

I allocate over 8gig in ram to the server with my start commands.

  Quote

java -Xmx8192M -Xms4096M -XX:+UseG1GC -jar forge-1.16.2-33.0.61.jar nogui

Expand  

 

DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

Please reproduce the crash and provide debug.log

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

So you're force killing the server before it kills itself?

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

So we're back to the situation of I'm not sure why the server is so slow.

How much ram are you giving the server?

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

NightmareKP Tree Puncher

NightmareKP

Posted
  • Author
Posted
  On 10/5/2020 at 2:21 AM, DaemonUmbra said:

So we're back to the situation of I'm not sure why the server is so slow.

How much ram are you giving the server?

Expand  

java -Xmx8192M -Xms4096M -XX:+UseG1GC -jar forge-1.16.2-33.0.61.jar nogui

 

Thats my start command with the memory arguments.

DaemonUmbra Reality Controller

DaemonUmbra

Posted
Posted

Try giving it 6G instead? I'm kinda throwing stuff at the wall here.

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

  Reveal hidden contents

 

NightmareKP Tree Puncher

NightmareKP

Posted
  • Author
Posted
  On 10/5/2020 at 7:50 PM, DaemonUmbra said:

Try giving it 6G instead? I'm kinda throwing stuff at the wall here.

Expand  

Hm...it took some time...but its still happening. Strange. Still think it has something to do with networking but idk what and i'm too lazy to install debian to test the theory that ubuntu is the bad part here.

  • 2 weeks later...

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