High traffic on Nginx-Webservers !!

[shahzaib shahzaib]

Hello,

       We're using the cluster of 5 webservers using nginx (reverse proxy)
+ apache to handle php requests. Our web-servers are constantly high with
load-avg of 2.0~3.0. I have seen people using varnish between nginx +
apache. Could someone guide me if installing Nginx > Varnish > apache will
reduce the server load ?

It's urgent.

Regards.
Shahzaib
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