HP WebQoS Peak for HP-UX Concepts and Operation Guide

Chapter 5 57

HP WebQoS Peak for the Apache Web Server

Integrating HP WebQoS with the Apache Web Server

Other Conﬁguration Considerations

This section covers tasks beyond basic conﬁguration:

HP WebQoS and Response Caching To control session admissions,

HP WebQoS tracks the session state by including cookies in HTTP

responses. For the session tracking mechanism to work properly, server

responses can no longer be cached. This, in turn, impacts the

performance of the server.

You can alleviate the problem by speciﬁcally allowing caching of certain

mime types, short of allowing a session to be fully served from cached

responses. Good candidates for caching are mime types representing

objects embedded in an HTML document (for example, images, sounds).

To turn on caching, use the HPACMimeCaching directive. The default for

the directive is “off.” For example, to turn mime caching on, use the

following directive in your conﬁguration ﬁle:

HPACMimeCaching on

With mime caching on, HP WebQoS allows caching of the following mime

types:

You can turn off caching of individual mime types in this list with the

Load 0.5

Percentage Priority Requests 0.00

Last Allocation Delay 92

Table 5-1 HP WebQoS for Apache Log File Statistics

Statistic Name Example Value

audio/basic image/gif image/x-photo-cd

audio/midi image/ief video/quicktime

audio/x-wav image/ifsimage/jpeg video/x-mpeg2

audio/x-liveaudio image/tiff video/x-msvideo

audio/x-pn-realaudio image/wavelet

image/ﬁf image/vnd