Metacat

<table class="tabledefault" width="100%">

<td class="tablehead" colspan="2"><p><a name="Edit build.properties File"><h2>Edit <code>build.properties</code> File</h2></p></td>

<tr>

<td>

  <p>

   Once all of the prerequisite software is installed as described above, 

   the installation of Metacat can begin.  First you must have a current

   version of the source distribution of Metacat.  You can get it two ways.

   Authorized users can check it out of the NCEAS 

   <a href="http://www.nceas.ucsb.edu/cgi-bin/cvsweb.cgi/xmltodb/">CVS</a>

   system. You'll need both the "metacat" module and the "utilities" module to

   be checked out in sibling directories. The command is as follows: 

   <pre>mkdir knb-software</pre>

   <pre>cd knb-software</pre>

   <pre>cvs checkout -P metacat</pre>

   <pre>cvs checkout -P utilities</pre>  

   Or you can 

   <a href="/software/download.html">download</a> a gzipped tar file

   from this site.

  </p>

   <p>

   Once you have either checked out or unzipped and untarred the source

   distribution, you can begin the installation process.  Change into the 

   metacat directory and edit the file called "<code>build.properties</code>".  You will need 

   to change a number of configuration properties to match the setup on

   your system. The property values that you will likely need to change are described in 

   detail in the following table:

  </p>

  <br/>

  <table border="1">

    <tr>

      <td><b>Property</b></td>

      <td><b>Description</b></td>

      <td><b>Default value and examples of other values</b></td>

    </tr>

    <tr>

      <td>tomcat</td>

      <td>The tomcat property is the location in which tomcat is installed.</td>

      <td>Default:&nbsp;&nbsp;

          <code>/usr/local/devtools/jakarta-tomcat</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>C:/Tomcat-5.5</code></td>

    </tr>

    <tr>

      <td>deploy.dir</td>

      <td>The deploy.dir property is the location in which your tomcat servlet 

          contexts are deployed. This is typically "${tomcat}/webapps",

          where ${tomcat} is the same value that you entered for the 'tomcat'

          property above.

      </td>

      <td>Default:&nbsp;&nbsp;

          <code>/var/www/org.ecoinformatics.knb</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>C:/Tomcat-5.5/webapps</code>

      </td>

    </tr>

    <tr>

      <td>tomcatversion</td>

      <td>The tomcatversion property is the version of Tomcat in which you 

          want Metacat to run. This will determine the location of some

          jar files coming with Tomcat. 

          <p>

            <em>Note: Tomcat 3 and 4 are no longer tested or supported by Metacat.

                Users are highly encouraged to upgrade to Tomcat 5.5.

            </em>

          </p>

          <p>

            <em>Also note: a property value of 'tomcat5' can be set when using

                either Tomcat 5.0 or Tomcat 5.5.

            </em>

          </p>

      </td>

      <td>Default:&nbsp;&nbsp;

          <code>tomcat5</code>

      <br><br>Other possible values (deprecated):&nbsp;&nbsp;

          <code>tomcat3 tomcat4</code>

      </td>

      </td>

    </tr>

    <tr>

      <td>metacat.context</td>

      <td>The metacat.context property is the name of the servlet context in which you 

          want Metacat to be installed. This will determine the installation 

          directory for the servlet and many of the URLs that are used to access

          the installed Metacat server.</td>

      <td>Default:&nbsp;&nbsp;

          <code>knb</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>mycontext</code>

      </td>

    </tr>

    <tr>

      <td>config.hostname</td>

      <td>The config.hostname property is the hostname of the server on which Metacat is 

          running (note that you should not include the 'http://' in the config.hostname

          property).

      </td>

      <td>Default:&nbsp;&nbsp;

         <code>knb.ecoinformatics.org</code>

      <br><br>Example:&nbsp;&nbsp;

         <code>somehost.university.edu</code>

      </td>

    </tr>

    <tr>

      <td>config.port</td>

      <td>The config.port property is the HTTP plain port number that is used to connect to Metacat.

          If Tomcat is running stand-alone, the value will typically be 8080.</td>

      <td>Default:&nbsp;&nbsp;

          <code>80</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>8080</code>

      </td>

    </tr>

    <tr>

      <td>config.port.https</td>

      <td>The config.port.https property is the HTTP secure port number that is used to connect to Metacat,

          generally when replicating documents to and from other Metacat servers.

          If Tomcat is running stand-alone, the value will typically be 8443.</td>

      <td>Default:&nbsp;&nbsp;

          <code>443</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>8443</code>

      </td>

    </tr>

    <tr>

      <td><a name="auth.url">auth.url</td>

      <td>URL to the LDAP server. The LDAP server is used in the default

          authentication module to authenticate and identify users of the

          system.  To participate in the KNB network, you should leave this at

          the default.  But it can be changed if you want to use a 

          different directory of users.

      </td>

      <td>Default:&nbsp;&nbsp;

          <code>ldap://ldap.ecoinformatics.org/dc=ecoinformatics,dc=org</code>

      </td>

    </tr>

    <tr>

      <td>database</td>

      <td>Select the database to use for metadata storage.

          <p>

          The build file is preconfigured to install Metacat either using 

          Oracle, PostgreSQL, or Microsoft SQL Server as a backend database.  

          To change the database system, simply change the value of the 'database' 

          property to be the name of the database target that you wish to use.

          </p>

          <p>

          Valid values are <code>oracle</code>, <code>postgresql</code>, or

          <code>sqlserver</code>. <em>Note that sqlserver support is minimal and

          probably will not work without substantial changes on your part,

          possibly including code changes.  We have not recently tested on 

          sqlserver.</em>

          </p>

      </td>

      <td>Default:&nbsp;&nbsp;

          <code>postgresql</code>

      <br><br>Other possible values:&nbsp;&nbsp;

          <code>oracle</code>&nbsp;&nbsp;

          <code>sqlserver</code>

      </td>

    </tr>

    <tr>

      <td>jdbc-connect</td>

      <td>The JDBC connection string used to connect to the database.</td>

      <td>Default:&nbsp;&nbsp;

          <code>jdbc:postgresql://localhost/metacat</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>jdbc:oracle:thin:@somehost.university.edu:1521:metacat</code>

      </td>

    <tr>

      <td>jdbc-base</td>

      <td>The base directory for locating JDBC jar files. When using the postgresql database, the default setting of './lib' can be used,

          while oracle and sqlserver databases will require a different setting since these jar files are not included in the Metacat

          distribution.</td>

      <td>Default:&nbsp;&nbsp;

          <code>./lib</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>/usr/oracle/jdbc/lib</code><br>

      </td>

    </tr>

    <tr>

      <td>user</td>

      <td>The database user name that you set up to use Metacat.</td>

      <td>Default:&nbsp;&nbsp;

          <code>metacat</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>metacatuser</code>

      </td>

    </tr>

    <tr>

      <td>password</td>

      <td>The database password that you set up to use Metacat.</td>

      <td>Default:&nbsp;&nbsp;

          <code>yourPasswordHere</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>metacat123</code>

      </td>

    </tr>

    <tr>

      <td>datafilepath</td>

      <td>The datafilepath is the directory to store data files.</td>

      <td>Default:&nbsp;&nbsp;

          <code>/var/metacat/data</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>C:/Tomcat-5.5/data/metacat/data</code>

      </td>

    </tr>

    <tr>

      <td>inlinedatafilepath</td>

      <td>The inlinedatafilepath is the directory to store inline data that

          has been extracted from EML documents.</td>

      <td>Default:&nbsp;&nbsp;

          <code>/var/metacat/inline-data</code>

      <br><br>Example:&nbsp;&nbsp;

          <code>C:/Tomcat-5.5/data/metacat/inlinedata</code>

      </td>

    </tr>

    <tr>

      <td>default-style</td>

      <td>The default-style parameter defines the "style-set" that is to be used

          by default when the qformat parameter is missing or set to "html"

          during a query. It is set to "default", which is one of the styles that 

          ships with the default metacat distribution. Other possible settings

          are shown in the examples to the right.</td>

      <td>Default:&nbsp;&nbsp;

          <code>default</code>

      <br><br>Examples:<code>esa kepler knb knb2 knp lter ltss nceas nrs obfs pisco specnet</code>

      </td>

    </tr>

    <tr>

      <td>administrators</td>

      <td>The administrators parameter lists the accounts that are allowed to

          perform administrative actions such as rebuilding indices for 

          documents. The list can contain more than one account separated

          by colons.</td>

      <td>Default:&nbsp;&nbsp;

          <code>uid=jones,o=NCEAS,dc=ecoinformatics,dc=org</code>

      <br><br>Examples:&nbsp;&nbsp;

          <code>uid=localadmin,o=ucnrs.org</code>

      </td>

    </tr>

	<!-- start lsid stuff -->

	<tr>

      <td>authority.context</td>

      <td>This is the context for the (Life Sciences Identifier) LSID authority.

        LSID support is an optional feature which can be configured to provide

        metacat access to LSID clients. For more information on LSID's see <a href="http://wiki.gbif.org/guidwiki/wikka.php?wakka=LSID">TDWG

        site</a>.</td>

      <td>Default: <code>authority</code></td>

    </tr>

	<tr>

      <td>config.lsidauthority</td>

      <td>This is the name of the LSID authority that this metacat should use.

        This authority needs to be defined as SRV record in a DNS.</td>

      <td><p>Default: <code>ecoinformatics.org</code></p>

        <p>Examples: <code>esa.org</code> or <code>sulphur.ecoinformatics.org</code></p></td>

    </tr>

    <tr>

      <td>install.ecogrid</td>

      <td>Enables EarthGrid web services. EarthGrid web services are disabled by default. 

          To enable EarthGrid web services (including query, put, authentication and 

          identifier interface), set this value to <code>true</code>, and also set the value

          of the <em>metacat.dir</em> property as detailed below.</td>

      <td>

          Default:&nbsp;&nbsp;<code>false</code>

      </td>

    </tr>

    <tr>

      <td>metacat.dir</td>

      <td>If the <em>install.ecogrid</em> property (see above) is set to <code>true</code>, this

          property should be set to the absolute path of the top-level metacat directory.

          If <em>install.ecogrid</em> is set to <code>false</code> (the default setting), 

          the value of <em>metacat.dir</em> is ignored.          

      </td>

      <td>Default:&nbsp;&nbsp;<code>/home/tao/project/metacat</code></td>

    </tr>

  </table>

   Note: If property "install.ecogrid" is set to be true(EarthGrid is enabled), you need to change the value of "metacatURL" to your metacat url in

   seek/projects/ecogrid/conf/MetacatImpl/classes/metacat.properties file.

  <br>

  <p>

  Other properties in <code>build.properties</code> that you can (but generally need not) change:

  </p>

  <table border="1">

    <tr>

      <td><b>Property</b></td>

      <td><b>Description</b></td>

      <td><b>Default value and examples of other values</b></td>

    </tr>

    <tr>

      <td>server</td>

      <td>The server property is the hostname and port number of the server that Metacat uses

          for replicating documents to and from other Metacat servers, which should be with the secure (HTTPS) port.

          Since this property is usually composed of the <code>config.hostname</code> and <code>config.port.https</code> properties (described above),

          the default setting can be used in most cases.

      </td>

      <td>Default:&nbsp;&nbsp;<code>${config.hostname}:${config.port.https}</code></td>

    </tr>

    <tr>

      <td>httpserver</td>

      <td>httpserver is the plain HTTP address and port number that Metacat uses for purposes

          other than replication. Since this property is usually composed of the <code>config.hosthame</code> and <code>config.port</code>

          properties (described above), the default setting can be used in most cases.</td>

      <td>Default:&nbsp;&nbsp;<code>${config.hostname}:${config.port}</code>

      </td>

    </tr>

    <tr>

      <td>http.protocol</td>

      <td>http.protocol is the string used in the leading part of a URL to indicate use of the HTTP protocol.</td>

      <td>Default:&nbsp;&nbsp;<code>http</code>

      </td>

    </tr>

    <tr>

      <td>config.metacatserver</td>

      <td>The URL to the metacat server, composed in part from three other properties (http.protocol, httpserver, and metacat.context).</td>

      <td>Default:&nbsp;&nbsp;<code>${http.protocol}://${httpserver}/${metacat.context}/metacat</code>

      </td>

    </tr>

    <tr>

      <td>inst.cgi.dir</td>

      <td>Installation directory for registry CGI scripts</td>

      <td>Default:&nbsp;&nbsp;

          <code>/var/www/cgi-knb</code>

      </td>

    </tr>

    <tr>

      <td>cgi-prefix</td>

      <td>The URL used for executing CGI scripts</td>

      <td>Default:&nbsp;&nbsp;

          <code>http://${httpserver}/cgi-bin</code>

      </td>

    </tr>

    <tr>

      <td>cvsroot</td>

      <td>CVS access to retrieve latest EML. Only used by

          developers in building the release.</td>

      <td>Default:&nbsp;&nbsp;

          <code><pre>:ext:${env.USER}@cvs.ecoinformatics.org:/cvs</pre></code>

          Example:  

          <code><pre>:ext:myaccount@cvs.ecoinformatics.org:/cvs</pre></code>

      </td>

    </tr>

    <tr>

      <td>knb-site-url</td>

      <td>This is the URL to the web context root for the knb site. 

          It is used for the qformat=knb skin only.</td>

      <td>Default:&nbsp;&nbsp;

          <code>http://knb.ecoinformatics.org</code>

      </td>

    </tr>

    <tr>

      <td>timedreplication</td>

      <td>Determines whether timed replication to other metacat servers is being used.</td>

      <td>Default:&nbsp;&nbsp;

          <code>false</code>

      <br><br>Other possible values:&nbsp;&nbsp;

          <code>true</code>

      </td>

    </tr>

    <tr>

      <td>firsttimedreplication</td>

      <td>The time for starting first timed replication if timedreplication is true.

          (See comments in build.properties file for additional details.)</td>

      <td>Default:&nbsp;&nbsp;

          <code>10:00 PM</code>

          <code>&nbsp;</code>

      </td>

    </tr>

    <tr>

      <td>timedreplicationinterval</td>

      <td>The interval to next timed replication if timedreplication is true.

          The value is in milliseconds and default value is 48 hours.</td>

      <td>Default:&nbsp;&nbsp;

          <code>172800000</code>

          <code>&nbsp;</code>

      </td>

    </tr>

    <tr>

      <td>forcereplicationwaitingtime</td>

      <td>The waiting time before replication is forced to begin after

          uploading a package. The default value should usually suffice.</td>

      <td>Default:&nbsp;&nbsp;

          <code>30000</code>

          <code>&nbsp;</code>

      </td>

    </tr>

    <tr>

      <td>log.dir</td>

      <td>The directory where replication log files are to be written by Metacat.</td>

      <td>Default:&nbsp;&nbsp;<code>${tomcat}/logs</code></td>

    </tr>

    <tr>

      <td>moderators</td>

      <td>Moderator accounts, in a colon-separated list. Specifies a list of special users who can review a general user's submission. 

             Moderators can approve, revise and reject the submission after reviewing. This property is only used in the ESA skin.</td>

      <td>Default:&nbsp;&nbsp;<code>cn=knb-prod,o=NCEAS,dc=ecoinformatics,dc=org</code></td>

    </tr>

    <tr>

      <td>allowedSubmitters</td>

      <td>Specifies the list of users who should be allowed to submit documents. 

          If no value is specified (the default setting), all users will be allowed to submit documents.

      </td>

      <td>Default:&nbsp;&nbsp;(no value)</td>

    </tr>

    <tr>

      <td>deniedSubmitters</td>

      <td>Specify the list of users who should not be allowed to submit documents. 

          If no value is specified (the default setting), all users will be allowed to submit documents.</td>

      <td>Default:&nbsp;&nbsp;(no value)</td>

    </tr>

    <tr>

      <td>config.metadataLabelLsid</td>

      <td> </td>

      <td>Default:&nbsp;&nbsp;<code>${config.lsidauthority}</code></td>

    </tr>

    <tr>

      <td>build.dir</td>

      <td>The name of the subdirectory that is created when metacat is built by the 'ant' tool.</td>

      <td>Default:&nbsp;&nbsp;<code>build</code></td>

    </tr>

    <tr>

      <td>lsid.build.dir</td>

      <td>The name of the subdirectory for building the LSID component of metacat.</td>

      <td>Default:&nbsp;&nbsp;<code>${build.dir}/lsid</code></td>

    </tr>

    <tr>

      <td>lib.dir</td>

      <td>The name of the subdirectory where library (.jar) files and a number of other important files are located.</td>

      <td>Default:&nbsp;&nbsp;<code>lib</code></td>

    </tr>

    <tr>

      <td>lsid.lib.dir</td>

      <td>The name of the subdirectory where LSID library (.jar) files are located.</td>

      <td>Default:&nbsp;&nbsp;<code>${lib.dir}/lsid_lib</code></td>

    </tr>

    <tr>

      <td>lsid.classes.dir</td>

      <td>The relative path to the location of Java classes that support LSID.</td>

      <td>Default:&nbsp;&nbsp;<code>edu/ucsb/nceas/metacat/lsid</code></td>

    </tr>

    <tr>

      <td>conf.dir</td>

      <td>The name of the directory where LSID configuration files are located.</td>

      <td>Default:&nbsp;&nbsp;<code>lib/lsid_conf</code></td>

    </tr>

    <tr>

      <td>services.dir</td>

      <td>The name of the directory where LSID services configuration files are located.</td>

      <td>Default:&nbsp;&nbsp;<code>${conf.dir}/services</code></td>

    </tr>

    <tr>

      <td>webinf.dir</td>

      <td>The name of the directory where additional LSID web services files are located.</td>

      <td>Default:&nbsp;&nbsp;<code>${conf.dir}/WEB-INF</code></td>

    </tr>

    <tr>

      <td>compile.debug</td>

      <td>Indicates whether Java source should be compiled with debug information.</td>

      <td>Default:&nbsp;&nbsp;<code>true</code></td>

    </tr>

    <tr>

      <td>compile.deprecation</td>

      <td>Indicates whether Java source should be compiled with deprecation information.</td>

      <td>Default:&nbsp;&nbsp;<code>false</code></td>

    </tr>

    <tr>

      <td>compile.optimize</td>

      <td>Indicates whether Java source should be compiled with optimization.</td>

      <td>Default:&nbsp;&nbsp;<code>true</code></td>

    </tr>

    <tr>

      <td>indexPaths</td>

      <td>The <em>indexPaths</em> property specifies a comma-separated (potentially long) list 

          of indexed paths that can be utilized to improve the

          performance of metacat queries. Each component of the <em>indexPaths</em> property

          should specify an absolute or relative path (using an XPath-like syntax) to an XML element or 

          attribute present in the XML documents being queried. Metacat stores XML 

          element and attribute values for indexed paths in a special database table 

          that optimizes search performance.

          <p>Metacat queries allow you to specify (using the &lt;pathexpr&gt; tag in search query) 

          an exact path to which you want

          to restrict the search. When the <pathexpr> path that is specified in the query

          is a member of the <em>indexPaths</em> list, search results are returned faster 

          because metacat can conduct its search using the optimized database table.

          <p>

          The default value for the <em>indexPaths</em> property contains numerous paths to EML

          elements and attributes that are commonly queried by metacat search tools. 

          For example, <em>keyword</em> is a

          member of this list because it is common for search tools to query

          the <em>keyword</em> field in EML documents. For most purposes, the default value will

          optimize various types of searches on EML documents and need not be changed.

          <p>

          For more information about metacat queries, 

          see <a href="./metacatquery.html">Queries and Results</a>.

      </td>

      <td>Default:&nbsp;&nbsp;<code>organizationName,originator/individualName/surName,...</code></td>

    </tr>

  </table>

  <p>

  Metacat has a number of additional settable properties in file

  <code>lib/metacat.properties</code>. Under most circumstances,

  you will not need to modify this file because the properties of interest

  to you can be controlled by editing <code>build.properties</code> as

  described above. To learn more about Metacat's additional properties,

  see <a href="./properties.html">Metacat Properties File</a>.

  </p>

  <p class="emphasis">

   Note: When setting properties, DO NOT add a trailing slash [/] to the end of any paths that are specified.

   Metacat will not function correctly if you do so.

  </p>

</td>

</tr>

</table>

<table class="tabledefault" width="100%">

<td class="tablehead" colspan="2"><p><a name="Compilation and Installation"><h2>Compilation and Installation</h2></p></td>

<tr>

<td>

  <a name="protocol"></a>

  <p>This section is only for a fresh installation. If you are upgrading an existing Metacat, please skip

  this section and go to the next one -  <a HREF="metacatinstall.html#Upgrade">Compilation and Upgrading Existing Metacat</a>

  <p>    

  <h3>Run Ant Build</h3></p>

  <p>

   Ant allows compilation and installation to be done in one step.

   Change into the metacat directory and type: 

   <pre><b>ant install</b></pre>

   <p>

   You should see a bunch of messages telling you the progress of compilation

   and installation.  When it is done you should see the message 

   BUILD SUCCESSFUL

   and you should be returned to a UNIX command prompt.  If you do not see

   the message BUILD SUCCESSFUL then there was an error that you need to 

   resolve.

   This may come up if you are logged in as a user that does not have write

   access to one or more of the directories that are listed in the build.xml

   file, or if any of the paths to files are not configured correctly in the

   "config" target.

  </p>

  <p>

  Note: The 'data' directories that are indicated in the 'datafilepath' and

  'inlinedatafilepath' build properties must be writable

  by user account under which Tomcat runs or you will not be able to upload 

  data files to the system.

  </p>

  <p class="header">To install metacat LSID support, adjust the LSID-related

    properties in the build.properties files and type:

  <p class="header"><b>ant deploy-lsid</b>

  <p>    

  <h3>SQL Scripts</h3></p>

  <p>

   You now need to set up the table structure in your database.  You can 

   do this either using the ant build system, or by manually running the

   scripts using a sql utility.

  </p>

  <p><b>WARNING: Do NOT run this on an existing metacat installation as it

  will delete all of your data.  If you have an existing metacat installation,

  see the instructions for <a HREF="metacatinstall.html#Upgrade">"Compilation and Upgrading Existing Metacat"</a> below.</b></p>

  <p>To run the scripts using ant, type

   <pre><b>ant installdb</b></pre> 

  </p>

  <p>To run the scripts manually, change to the

   metacat/build/src directory.  Then run you RDBMS's SQL utility.  In Oracle it is

   SQLPlus.  This tutorial assumes an Oracle database so this example is for

   SQLPlus.  Login as the oracle user that was set up for use with Metacat.

   At the SQLPlus prompt type the following: <pre><b>@xmltables.sql;</b></pre>

   For postgres, use a command like: 

   <code>psql -U metacat -W -h localhost -f build/src/xmltables-postgres.sql metacat</code>

  </p>

  <p>Either way, 

   you should see a bunch of output showing the creation of the Metacat table

   space. The first time you run this script you will get several errors at the 

   beginning saying that you cannot drop a table/index/trigger because it 

   does not exist.  This is normal.  Any other errors besides this need to be

   resolved before continuing. The script file name for PostgreSQL is 

   xmltables-postgres.sql and for Microsoft SQL server is 

   xmltables-sqlserver.sql.

  </p>

  <p>

   If the script has run correctly you should be able to type 

   <pre>describe xml_documents</pre> and it should show:

   <pre>

    Name            Null?         Type

    --------------  ------------  ---------------- 

     DOCID          NOT NULL      VARCHAR2(250)

     ROOTNODEID                   NUMBER(20)

     DOCNAME                      VARCHAR2(100)

     DOCTYPE                      VARCHAR2(100)

     DOCTITLE                     VARCHAR2(1000)

     USER_OWNER                   VARCHAR2(100)

     USER_UPDATED                 VARCHAR2(100)

     SERVER_LOCATION              NUMBER(20)

     REV                          NUMBER(10)

     DATE_CREATED                 DATE

     DATE_UPDATED                 DATE

     PUBLIC_ACCESS                NUMBER(1)

     UPDATED                      NUMBER(1)

   </pre>

  </p>

  <p><h3>Register schemas and DTDs</h3></p>

  <p>Once the tables have been created, you should also register the Ecological

  Metadata Language (EML) DTDs and schemas. <b>However, note that you should 

  NOT do this if you are upgrading an existing installation -- the upgrade

  scripts take care of it for you (see the next section).</b>  If you are

  installing new, you can register the schema documents by running:</p>

  <pre><b>ant register-schemas</b></pre> 

  <p>This command registers the EML DTDs' and schemas' location in the 

  metacat server.  Your database username and password have to be set correctly

  for this to work.  Also, if for some reason running this script from ant

  does not work, you could instead try running "build/src/loaddtdschema.sql"

  from your sql utility (but be sure to use the version in the 'build' directory

  that has been customized for your installation).

  </p>

  <h3>Restart Tomcat</h3>

  <p>

   Once you have successfully installed Metacat, there is one more step.  Tomcat

   (and Apache if you have Tomcat integrated with it) must be restarted.  To do

   this, login as the user that runs your tomcat server (often "tomcat"),

   go to $CATALINA_HOME/bin and type:

   <pre>

   <b>

   ./shutdown.sh 

   ./startup.sh

   </b> 

   </pre>

   In the Tomcat startup messages you should see something in the log file like:

   <pre>

	Metacat: [WARN]: Metacat (1.8.1) initialized. [edu.ucsb.nceas.metacat.MetaCatServlet]

   </pre>

   If you see that message Tomcat is successfully loading the Metacat servlet.

   Next, try to run your new servlet.  Go to a web browser and type:

   <pre>http://yourserver.yourdomain.com/yourcontext/</pre>

   You should substitute your context name for "yourcontext" in the url above.

   If everything is working correctly, you should see a query page followed

   by an empty result set.  Note that if you do not have Tomcat integrated with

   Apache you will probably have to type

   <pre>http://yourserver.yourdomain.com:8080/yourcontext/</pre>

  </p>

  <p><b>Troubleshooting</b>: If you see something like java.lang.InternalError: 

  Can't connect to X11 window server using 'yourservanme:0.0' as the value of the DISPLAY variable.

  <p>You should add this line: 

  <b>JAVA_OPTS="-Djava.awt.headless=true $JAVA_OPTS"</b> at the first line of

  catalina.sh file in tomcat bin directory. The reason is that GeoServer uses X11 windows to draw graphics.

  </p>

  <h3>Deploy wsdl file (Only for EarthGrid-enabled Metacat installation) </h3>

  <p>

   Once Tomcat is running successfully, there is another step for EarthGrid-enabled Metacat installation. 

   In metacat directory, type:

   <pre><b>ant deploy-ecogrid</b></pre> 

   It will generate wsdl files for EarthGrid services.

   </p>

</td>

</tr>

</table>