Random logs: ERROR [io.ver.cor.net.imp.ConnectionBase] (vert.x-eventloop-thread-0) io.netty.channel.StacklessClosedChannelException

[mcanzerini]

Questions

In our Quarkus applications deployed in openshift (PRODUCTION), random logs appears with ERROR level:
2024-06-18 01:22:52,955 ERROR [io.ver.cor.net.imp.ConnectionBase] (vert.x-eventloop-thread-0) NULL: io.netty.channel.StacklessClosedChannelException

My question is: when does this exception occur? Is it a network issue on our infra or in the code?

Until now, we do not see any business issue related to this, but we want to be sure that this is not a critical bug to investigate. And of course, we want to understand this error and its cause.

Version

Quarkus 3.15.1

Context

This log appear randomly (more often when the applications have a lot of traffics)

Extra

I opened an issue in quarkus months ago without feedback. I give it a try on the vert.x repo since vert.x seems to be involved.
quarkusio/quarkus#40918

Thanks