I have 2 KVM nodes, one of them is running from 8-9 months another one I deployed recently.
Although I am not having any issues on the server, VMs and everything seems to be working fine.
But I see this error message generating in /var/log/messages every 4 to 8 minutes.
Nov 19 01:08:03 localhost libvirtd: 2019-11-18 19:38:03.983+0000: 1875: error : virNetSocketReadWire:1806 : End of file while reading data: Input/output error
Nov 19 01:08:07 localhost libvirtd: 2019-11-18 19:38:07.040+0000: 1875: error : virNetSocketReadWire:1806 : End of file while reading data: Input/output error