CompletionQueue overflow detected, consider increasing size: 4096

[HAMMERxPL]

Bungeecord version

latest

Server version

No response

Client version

No response

Bungeecord plugins

The bug

I see multiple thousands of warning:
[02:38:47] [multiThreadIoEventLoopGroup-3-24/WARN] [io.netty.channel.uring.IoUringIoHandler]: CompletionQueue overflow detected, consider increasing size: 4096 [02:38:57] [multiThreadIoEventLoopGroup-3-64/WARN] [io.netty.channel.uring.IoUringIoHandler]: CompletionQueue overflow detected, consider increasing size: 4096 [02:38:59] [multiThreadIoEventLoopGroup-3-9/WARN] [io.netty.channel.uring.IoUringIoHandler]: CompletionQueue overflow detected, consider increasing size: 4096
Maybe this should be reported to netty?

Log output (links)

No response

Checking

• I am using BungeeCord and not a fork. Issues with forks should not be reported here.
• I think this is not an issue with a bungeecord plugin.
• I have not read these checkboxes and therefore I just ticked them all.
• This is not a question or plugin creation help request.

[Outfluencer]

I'd say its a netty issue

https://github.com/netty/netty/blob/63ffb7ea861d96879ade0c13eb85e6a170d92ffb/transport-classes-io_uring/src/main/java/io/netty/channel/uring/IoUringIoHandler.java#L199

[HAMMERxPL]

I'd say its a netty issue

https://github.com/netty/netty/blob/63ffb7ea861d96879ade0c13eb85e6a170d92ffb/transport-classes-io_uring/src/main/java/io/netty/channel/uring/IoUringIoHandler.java#L199

netty/netty#15739

@HAMMERxPL this basically means you receive completions faster then you drain them. As the warning suggest... increase the completion queue size.

Originally posted by @normanmaurer in #15739