HP e-Commerce / XML director server appliance sa8250 - Users Guide

A P P E N D I X E Troubleshooting
333
Client getting
timeout or “service
not found” errors
Proxy servers inhibit
use of sticky src-ip
option.
Some ISPs use proxy servers to load balance
client sessions. When the sticky src-ip
option is enabled and the client’s session is
switched to another proxy server, the source
IP address is changed. This may cause the
SA8250 to route the request to a different
server. The solution is to use the “sticky
cookie” option instead of “sticky src-ip.” In
this mode, a cookie is sent to the client to
force use of the same server regardless of the
source IP.
The client is on the
same subnet as server
(SAP mode only). This
causes the server to
return the response
directly to the client,
bypassing the SA8250.
The client discards the
response since the
destination is that of the
server and not the
SA8250.
Configure the client and server to reside on
different subnets.
For OPR
configurations, the
loopback adapter is not
configured on the
fulfillment server(s).
For instructions on configuring the loopback
adapter on the server(s), see Appendix D.
Problem Possible Cause Solution
SA8250 Troubleshooting Guide (continued)