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

A P P E N D I X E HP e-Commerce/XML Director Server Appliance SA8250 User Guide
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Client connects
directly to the
fulfillment server,
bypassing the
SA8250
Timing issue with
routers
Define a static route for the SA8250 on the
router.
Unexpected routing
behavior
“Keepalive” option is
enabled on the
fulfillment servers
when configured with
the sticky option on the
SA8250.
Turn off “Keepalive” on the fulfillment
servers when using the sticky option.
Only some images
load when routing in
RICH-HTTP mode
“Keepalive” option is
enabled on the
fulfillment servers
when configured for
RICH-HTTP service on
the SA8250.
Turn off “Keepalive” on the fulfillment
servers when using RICH-HTTP. When
“Keepalive” is enabled on the fulfillment
servers, each GET request from the client
always returns to the same web server. If
GIFs are defined on one server and JPGs on
another, then only one of these image types
is seen at the client.
Round Robin Load
Balancing works
abnormally
The directory and/or
file content of the
fulfillment servers
defined under the
service is not identical.
Configure all the servers under the same
service with the same directory structure and
file content.
New TCP connections,
not client sessions, are
assigned to fulfillment
servers in a round robin
fashion.
This is normal behavior. Multiple
components of a web page (such as HTML
and GIFs) require separate TCP connections.
The requests are assigned to the fulfillment
servers in round robin fashion, although it
may not be apparent from the browser.
Problem Possible Cause Solution
SA8250 Troubleshooting Guide (continued)