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

C H A P T E R 2 XML Operations
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XML “Well formed” errors
If the SA8250 detects punctuation or syntax errors in an incoming
XML data stream, it can be configured to send an error message to the
sending client (the default setting), or to direct the client data to
servers matching the RICH expression, effectively ignoring the
incoming XML data.
XML default special case
If a server is configured as the default in the SA8250, and none of the
XML expressions match the incoming data stream, the SA8250
directs the client to the default server, provided the RICH expression
matches. This feature specifes which server handles the transactions
if there are no matches for the XML expressions.
If the SA8250 is not programmed with a default server, and if none
of the XML expressions match the incoming data, the SA8250
returns HTTP error 503, “No Servers Available” to the client.
If the RICH expression does not match, the XML expression is
ignored and the SA8250 returns HTTP error 503, “No Servers
Available” to the client.
To set the default server using the Graphical User Interface (GUI),
see Chapter 4.
To set the default server using the Command Line Interface (CLI),
see Chapter 5.