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Appendix B
Traffic Manager Configuration Options
URL Update List
Click this link to display the URL Update List page enabling you to view,
modify, or delete URL entries and their associated Request Headers, update
offset hour, interval, and recursion depth.
These entries are recorded in the
update.config
file. See
update.config‚ on
page 218
.
The URL Update List page contains an Add Entry button that opens the Add
Entry page so that you can add new URLs for which you want Traffic Server to
perform a scheduled update to the local cache content.
Use the Add Entry page to modify settings in the
update.config
file. This is
preferable to modifying the file directly using a text editor because the page takes
care of automatically notifying Traffic Server when changes are made. If you do
modify
update.config
directly, you must manually stop and restart the
Traffic Server process. The Add Entry page contains the following options:
URL - HTTP and FTP-based URLs. The system validates the syntax of the URL,
but does not confirm its existence.
Request Headers - (Optional) A semicolon separated list of headers passed in
each
GET
request. You can define any request header that conforms to the HTTP
specification. The default is no request header.
Update Offset Hour - The base hour used to derive the update periods. The
range is 00-23 hours.
Update Interval - The interval, in seconds, at which updates should occur,
starting at Offset hour.
Recursion Depth - The depth to which referenced URLs are recursively
updated, starting at the given URL. For example, a recursion depth of 1 will
update the given URL, as well as all URLs immediately referenced by links from
the original URL.
Force immediate
update
Overrides the scheduling expiration time for all scheduled update entries and
initiates updates until this option is turned off.
Option
Description
