Sun Java System Web Server 7.0 Update 7 Performance Tuning, Sizing, and Scaling Guide

Using find-pathinfo-forward

The find-pathinfo-forward parameter used in obj.conf can help improve performance. It is used with the PathCheck function find-pathinfo and the NameTrans functions pfx2dir and assign-name. The find-pathinfo-forward parameter instructs the server to search forward for PATH_INFO in the path after ntrans-base, instead of backward from the end of the path in the server function find-pathinfo. The find-pathinfo-forward parameter is not supported within the Admin GUI. So, users need to manually edit the corresponding obj.conf file and upload the changes to the admin config repository.

Note –

The server ignores the find-pathinfo-forward parameter if the ntrans-base parameter is not set in rq->vars when the server function find-pathinfo is called. By default, ntrans-base is set.


NameTrans fn="pfx2dir" find-pathinfo-forward="" from="/cgi-bin" 
dir="/export/home/cgi-bin" name="cgi"
NameTrans fn="assign-name" from="/perf" 
find-pathinfo-forward="" name="perf"

This feature can improve performance for certain URLs by doing fewer stats in the server function find-pathinfo. On the Windows platform, you can also use this feature to prevent the server from changing "\\" to "/" when using the PathCheck server function find-pathinfo.

For more information about obj.conf, see the Sun Java System Web Server 7.0 Update 7 Administrator’s Configuration File Reference.