MORE INFORMATION
Usage analysis permits you to track how Web sites on your
server are used. You can track how many users visit your site, the type and
number of hits your site receives, and other site-usage information. You
configure usage analysis processing for Windows SharePoint Services on the
Configure Usage Analysis Processing page of Windows SharePoint
Services Central Administration. Log files are created daily to track usage
information. By default, log files for usage analysis processing are stored in
the following folder, where
Drive is the drive where
Microsoft Windows Server 2003 is installed:
Drive:\Windows\System32\LogFiles\STS
A subfolder exists for each virtual server, and in each of these
subfolders are folders that are created for each day. If you specify a
different location to store log files, make sure that the STS_WPG group has
Read, Write, and Update permissions to the folder.
You can specify up
to 30 log files to track usage information in the
Number of log files
to create box in the
Logging Settings area of the
Configure Usage Analysis Processing page. Multiple log files
are intended for use in server farm deployments of Windows SharePoint Services,
where a front-end Web server may receive one million or more hits per day. Note
that Windows SharePoint Services logs HTTP 2.
x
information to the log files, and does not log HTTP
3.
x or HTTP 4.
x
information to the log file. When you use multiple log files, the log files are
created at the same time and all hits from one Web site are contained in the
same log file. Usage data for a Web site is updated one time each
day.
Each hit that a front-end Web server receives uses approximately
200 bytes (B) in a log file. As a result, approximately 200 megabytes (MB) of
RAM are used to memory map a log file that contains a million hits. Memory
mapping occurs only for several minutes during usage processing. However, if
the memory footprint is too large, you can use multiple log files. When you
have several log files, a smaller memory footprint results when the log file is
processed.
The number of requests that are sent to the back-end
server during usage processing is proportional to the number of Web sites on
the server. However, the memory footprint on the back-end server is not
affected by the number of Web sites. The additional load that usage processing
generates does not significantly affect the performance of the back-end servers
on the server farm.
For more information about Windows SharePoint
Services, visit the following Microsoft Web site: