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Enabling Web Searches: Sitemaps
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===============================
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Sitemaps are XML files that tell search engines—such as Google, which is
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discussed in this section--which URLs on your websites are available for
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crawling. Currently, the only way for a search engine to crawl and index
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Metacat so that individual metadata entries are available via Web searches
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is with a sitemap. Metacat automatically creates sitemaps for all public
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documents in the repository. However, you must register the sitemaps with
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the search engine before it will take effect.
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Creating a Sitemap
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------------------
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Metacat automatically generates a sitemap file for all public documents in
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the repository on a daily basis. The sitemap file(s) must be available via
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the Web on your server, and must be registered with Google before they take
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effect. For information on the sitemap protocol, please refer to the Google
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page on using the sitemap protocol. You can view Metacat's sitemap files at::
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<webapps_dir>/sitemaps
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The directory contains one or more XML files named::
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metacat<X>.xml
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where ``<X>`` is a number (e.g., 1 or 2) used to increment each sitemap file.
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Because Metacat limits the number of sitemap entries in each sitemap file to
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25,000, the servlet creates an additional sitemap file for each group of
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25,000 entries.
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Verify that your sitemap files are available to the Web by browsing to::
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<your_web_context>/sitemaps/metacat<X>.xml
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(e.g., your.server.org/knb/sitemaps/metacat1.xml)
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Registering a Sitemap
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---------------------
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Before Google will begin indexing the public files in your Metacat, you must
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register the sitemaps. To register your sitemaps and ensure that they are up
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to date:
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1. Register for a Google Webmaster Tools account, and add your Metacat
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site to the Dashboard.
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2. From your Google Webmaster Tools site account, register your sitemaps.
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See the Google help site for more information about how to register sitemaps.
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Note: Register the full URL path to your sitemap files, including
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the http:// (or https://) headers.
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Once the sitemaps are registered, Google will begin to index the public
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documents in your Metacat repository.
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NOTE: As you add more publicly accessible data to Metacat, you will need to
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periodically revisit the Google Webmaster Tools utility to refresh your
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sitemap registration.
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