Error: readv() failed (104: Connection reset by peer) while reading upstream

Hi all,

I love EE so much, but using EE for about 10 vps && dedicate, I found an error which appear in many vps & server:

[error] 11621#11621: *571766 readv() failed (104: Connection reset by peer) while reading upstream, client: 173.245.62.143, server: teonao.vn, request: “GET /bi-quyet-giup-thay-giao-87-tuoi-giu-lai-tri-tue-sau-2-dot-tai-bien-3728/?utm_source=face%2F12-12%2FLH&utm_campaign=cpc&utm_medium=TT HTTP/1.1”, upstream: “fastcgi://127.0.0.1:9070”, host: “teonao.vn”, referrer: “http://m.facebook.com/

I’ve tried increase some parameter as : https://websetnet.com/how-to-fix-readv-failed-104-connection-reset-by-peer-error/

But the error is still existed, many websites have about 100-200 this errors per day.

Please give me some guide,

Thanks,