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The steps below should see you through the upgrade of a standard Islandora installation to the latest versions of Apache Solr and Fedora GSearch.

1. Confirm that Apache ant is installed

ant -version

2. Remove the current Fedora GSearch .war file

rm -f $FEDORA_HOME/tomcat/webapps/fedoragsearch.war

3. Remove the current Apache Solr .war file

rm -f /opt/solr/apache-solr-1.4.1.war 

4. Copy the new Fedora GSearch .war file into place

cp /staging/fedoragsearch-2.5/fedoragsearch.war $FEDORA_HOME/tomcat/webapps/

5. Change ownership of the new GSearch .war file to user 'fedora'.

chown fedora:fedora /usr/local/fedora/tomcat/webapps/fedoragsearch.war

6. Copy the /example/solr directory into place

cp -r /staging/apache-solr-3.6.0/example/solr $FEDORA_HOME/solr

7. Change ownership of the new /solr directory to user 'fedora'

chown fedora:fedora $FEDORA_HOME/solr/

8. Copy the new Apache Solr file into place

cp /staging/apache-solr-3.6.0/example/webapps/solr.war $FEDORA_HOME/tomcat/webapps/

9. Change ownership of the new Solr .war file to user 'fedora'.

chown fedora:fedora$FEDORA_HOME/tomcat/webapps/solr.war

10. Edit the fedora-users.xml and fgsconfig-basic.properties files

10a.  fedora-users.xml

vi $FEDORA_HOME/server/config/fedora-users.xml

Add the following section...

> # add additional user
>
> <user name="fgsAdmin" password="[password]">
>   <attribute name="fedoraRole">
>     <value>administrator</value>
>   </attribute>
> </user>

10b.  fgsconfig-basic.properties

vi $FEDORA_HOME/tomcat/webapps/fedoragsearch/FgsConfig/fgsconfig-basic.properties

Change, or uncomment, each of the following lines.  When uncommenting a line in a particular section, make sure to also comment out the original line that was 'selected' in that section.

> configDisplayName=configProductionOnSolr
> gsearchPass= [password]
> local.FEDORA_HOME=/usr/local/fedora
> namesOfRepositories=FgsRepos

> namesOfIndexes=FgsIndex
(keep name in order not to modify GUI for GSearch)

> fedoraBase=http://localhost:8080
(to access objects from index in GUI for GSearch)

> fedoraPass=[password]
> indexEngine=Solr
> indexBase=http://localhost:8080/solr
> indexDir=${local.FEDORA_HOME}/solr/data/index
> indexingDocXslt=foxmlToSolr

11. Change to the /FgsConfig directory

cd $FEDORA_HOME/tomcat/webapps/fedoragsearch/FgsConfig

12. Run ant on the fgsconfig-basic.xml file

ant -f fgsconfig-basic.xml 

You should see a message similar to:

BUILD SUCCESSFUL
Total time: 0 seconds

13. Rename the current Solr schema.xml file to schema.bak

mv $FEDORA_HOME/solr/conf/schema.xml $FEDORA_HOME/solr/conf/schema.bak

14. Copy the new, ant-generated Solr schema into place as schema.xml

cp $FEDORA_HOME/tomcat/webapps/fedoragsearch/WEB-INF/classes/fgsconfigFinal/index/FgsIndex/conf/schema-3.6.1-for-fgs-2.5.xml $FEDORA_HOME/solr/conf/schema.xml

15. Stop/Start the Fedora service

$FEDORA_HOME/tomcat/bin/shutdown.sh

$FEDORA_HOME/tomcat/bin/startup.sh

16. Test the upgrade

1. Check the number of items indexed in Fedora GSearch:   
   
   1. Go to http://localhost:8080/fedoragsearch/rest
   2. Login using fgsAdmin 
   3. Click on updateindex
   4. Click on updateIndex fromFoxmlFiles - The "Resulting number of index documents" should have the same value as it did before the upgrade
2. Check the version of Solr:
   
   1. Go to http://192.168.56.195:8080/solr
   2. Click the 'Solr Admin' link
   3. Click the [Info] link - The "Solr Specification Version" should match the version number of Solr that was just installed.
3. Check the version of Fedora GSearch:
   
   1. Go to http://192.168.56.195:8080/fedoragsearch - The "Fedora Generic Search Service Version" should match the version number of GSearch that was just installed.

Thank you to Charles Birmingham for providing the basis for this section.