80 End-to-End e-business Transaction Management Made Easy
server as a reverse proxy that forwards requests to the original Web server and
relays the results back to the end user’s Web browser. Several options are
possible, such as in front of your load balancer, behind your load balancer, and
on the same machine as your Web server. There is no hard and fast rule about
the placement, so placement is dictated by what you want to measure. However,
the QoS component is designed as a sampling tool. This means that in a large
scale environment, where you have a Web Server farm behind load balancers,
the QoS only needs to be in the path of one of your Web Servers. This will
generally get a statistically sound sample that can be used to extrapolate ...