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TCP proxy log filled with i/o timeout #696

@jackhftang

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@jackhftang

I am not sure if this is noraml or this is an issue with client or server or fabio, but there were a lot of log like this (almost every request), but everything looks working fine.

Sep 12 02:04:40 app-24749 fabio[24589]: 2019/09/12 02:04:40 [WARN]: tcp:  read tcp x.x.x.x:80-> y.y.y.y:17400: i/o timeout

x.x.x.x is fabio host ip
y.y.y.y is client ip

related fabio config and fabio version is 1.5.11

proxy.addr = :80;proto=tcp;rt=3s;wt=5s;pxyproto=false
proxy.strategy = rr

I tried both, pxyproto=true and pxyproto=false, result is the same.

service tag is urlprefix-:80 proto=tcp. I tried with my own http server and also this nginxdemos/hello.

My questions is what is the meaning of the message? and is this normal or any part is wrong?

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