http: TLS handshake error from xxx EOF

[Ray2025]

I want to know how to resolve this issue. Although it is an info-level message, it generates around 200,000 logs every day, and I have noticed that the IP address does not match the load balancer.

oc -n openshift-machine-config-operator logs machine-config-server-cv46h --tail=20
I0818 06:14:06.720283 1 log.go:194] http: TLS handshake error from xx.xx.xx.76:13236: EOF
I0818 06:14:07.468683 1 log.go:194] http: TLS handshake error from xx.xx.xx.2:17390: EOF
I0818 06:14:08.523342 1 log.go:194] http: TLS handshake error from xx.xx.xx.3:13450: EOF
I0818 06:14:08.936596 1 log.go:194] http: TLS handshake error from xx.xx.xx.75:10678: EOF
I0818 06:14:11.753175 1 log.go:194] http: TLS handshake error from xx.xx.xx.76:13516: EOF
I0818 06:14:12.467949 1 log.go:194] http: TLS handshake error from xx.xx.xx.2:17648: EOF
I0818 06:14:13.531226 1 log.go:194] http: TLS handshake error from xx.xx.xx.3:13708: EOF
I0818 06:14:13.952786 1 log.go:194] http: TLS handshake error from xx.xx.xx.75:10952: EOF
I0818 06:14:16.759814 1 log.go:194] http: TLS handshake error from xx.xx.xx.76:13784: EOF
I0818 06:14:17.492874 1 log.go:194] http: TLS handshake error from xx.xx.xx.2:17906: EOF
I0818 06:14:18.571128 1 log.go:194] http: TLS handshake error from xx.xx.xx.3:13966: EOF
I0818 06:14:18.976756 1 log.go:194] http: TLS handshake error from xx.xx.xx.75:11228: EOF
I0818 06:14:21.783398 1 log.go:194] http: TLS handshake error from xx.xx.xx.76:14066: EOF

[Chetan_Tiwary_]

@Ray2025 seems the error you are seeing in the machine-config-server logs is likely just your load balancer doing a health check. It's using a basic, non-TLS connection to check if the service is up. 

If the source IP address in the log matches your load balancer's IP, you might be able to fix it. Just configure your load balancer to use a TLS connection for its health checks instead of a plain TCP one. This will stop the handshake errors from showing up in your logs. 

oc -n openshift-machine-config-operator logs machine-config-server-<id>