Error dump causing a lot of lag

S

Skinner1818

Refugee
Evening all,

Hope someone will be able to help me, I started a U20 server today via serverblend with 20 players, map size 4096 randomly generated world.

Since the server started, players have been reporting massive lag spikes which have been causing deaths for players.

The lag spikes correlate to the below log dumps, varying from 10 messages to over 60 in less than a second.

2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208

Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 800 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 816 -208
Code: 
2022-04-29T22:43:19 8305.382 WRN Active sync could not be found to be cleared: 784 -208

I have not been able to find anything about this particular error online, I was wondering if anyone will be able to advise?

Thanks!

 
Last edited by a moderator:
I've been having this same issue. When new players are joining and downloading the map this error appears and basically the server comes to a stand still with lag and even disconnecting people.

 
Hey everyone, started noticing the same issue on my server. It's pretty low population, maybe 4-5 regular players but randomly when someone will join, the server will lag for about 5 minutes. In the logs, the only issues I can see is the same "WRN Active sync could not be found to be cleared: 2096 -1536" message. 

See below for last night's logs. If you search for the error you can find instances of this occurring. 

https://ghostbin.com/bjZq9

 
kyledd said:
In the logs, the only issues I can see is
Click to expand...
There's this error spamming before the server is even up?

```Assertion Failed: V_RemoveDotSlashes failed for "/../controller_base/images/api/knockout```

No idea what that is but I'd start there.

 
Beelzybub said:
There's this error spamming before the server is even up?

```Assertion Failed: V_RemoveDotSlashes failed for "/../controller_base/images/api/knockout```

No idea what that is but I'd start there.
Click to expand...
From first glance, that could be related to controller support which is fairly irrelevant.  Any other thoughts regarding the Active Sync error?

 
kyledd said:
Any other thoughts regarding the Active Sync error?
Click to expand...
I don't think they are a problem. When they happen it's less than 2 seconds till they're done.

I would disable Steamnetworking as it's known to be laggy. LiteNetLib allows a direct connection

between client and server, which is much faster. If you have issues connecting after disabling steamnetworking,

then your ports are not configured correctly. If you're connecting in a LAN, then use "Connect by IP" and

enter the server's local ip address.

You have 6 players on at some point, which I think is stretching the ability of that machine to keep up.

Reduce the servermaxallowedviewdistance from 12 to 6.

Ubuntu defaults to a 2Gb swapfile, you should increase that to 8Gb.

Monitor the server's cpu/ram with htop or some such. See if's using too much cpu or ram.

If you have a second drive in the machine you can get better performance if you move

the save to the second drive using <property name="UserDataFolder" in the serverconfig.

Wireless can be laggy so use ethernet if possible.

Antivirus can cause lag or disconnects. Adding an exclusion for the game and save folders is recommended. (for the clients)

Also, I'd use the stable linux branch, 5.4 instead of 5.15 but I'd try all the other things first.

Also, your login confirmation is hysterical. Best I've ever seen.

 
Beelzybub said:
I don't think they are a problem. When they happen it's less than 2 seconds till they're done.

I would disable Steamnetworking as it's known to be laggy. LiteNetLib allows a direct connection

between client and server, which is much faster. If you have issues connecting after disabling steamnetworking,

then your ports are not configured correctly. If you're connecting in a LAN, then use "Connect by IP" and

enter the server's local ip address.

You have 6 players on at some point, which I think is stretching the ability of that machine to keep up.

Reduce the servermaxallowedviewdistance from 12 to 6.

Ubuntu defaults to a 2Gb swapfile, you should increase that to 8Gb.

Monitor the server's cpu/ram with htop or some such. See if's using too much cpu or ram.

If you have a second drive in the machine you can get better performance if you move

the save to the second drive using <property name="UserDataFolder" in the serverconfig.

Wireless can be laggy so use ethernet if possible.

Antivirus can cause lag or disconnects. Adding an exclusion for the game and save folders is recommended. (for the clients)

Also, I'd use the stable linux branch, 5.4 instead of 5.15 but I'd try all the other things first.

Also, your login confirmation is hysterical. Best I've ever seen.
Click to expand...
Thank you for the tips! It's definitely appreciated since I'm a newer UNIX user. Just using some old boxes to play around on and get more familiar with CLI. 

Also I'm glad you got a kick out of the login confirmation! 

 
Last edited by a moderator:
You must log in or register to reply here.
Back
Top