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  • Create Directory /data/ddb as root:


      • Code Block
        mkdir /data/ddb
chmod 755 /data/ddb
chown -R admin:users /data/ddb


    • Install required libraries + Java as root


      • Code Block
        yum -y install lsof python-lxml rsync java-1.8.0-openjdk java-1.8.0-openjdk-devel


    • Download + Install SOLR-Tar as root


      • Code Block
        cd
export https_proxy=http://proxy.fiz-karlsruhe.de:8888/ && curl -O "https://archive.apache.org/dist/lucene/solr/8.0.0/solr-8.0.0.tgz"

tar xfp solr-8.0.0.tgz
./solr-8.0.0/bin/install_solr_service.sh ~/solr-8.0.0.tgz -d /data/ddb/tools/solr -p 8183 -f

chown -R solr:solr /opt/solr-8.0.0
ln -s /opt/solr-8.0.0 /opt/solr
rm -fr solr-8.0.0*


    • Configure JAVA_OPTS
      • in /opt/solr/bin/solr insert


      • Code Block
        SOLR_JAVA_MEM="-Xms6g -Xmx6g"


    • Configure Access as solr-user + ability to restart service as root
      • chmod 660 /etc/sudoers
      • In /etc/sudoers add


      • Code Block
        ## Allow admin to su to solr and to start solr-server
admin   ALL=(root) NOPASSWD: /etc/init.d/solr
admin   ALL=(root) NOPASSWD: /bin/su - solr


      • chmod 440 /etc/sudoers

    • Copy DDB-Libs + Configurations as solr


    • Code Block
      cd /opt/solr
cp ./dist/*.jar ./server/solr-webapp/webapp/WEB-INF/lib/
cp contrib/extraction/lib/*.jar ./server/solr-webapp/webapp/WEB-INF/lib/
cp contrib/analysis-extras/lucene-libs/*.jar ./server/solr-webapp/webapp/WEB-INF/lib/

cd /data/ddb/tools/solr/current/server/solr-webapp/webapp/WEB-INF/lib
ln -s /data/ddb/Cortex/lib/SolrIndexServer.jar
ln -s /data/ddb/Cortex/lib/solr-ocrhighlighting.jar

cd /data/ddb/tools/solr/data
ln -s /data/ddb/Cortex/conf/solr/solr.xml
CORES=(fulltext nodes organization person search newspaper newspaper-issues oaiitems)
for core in ${CORES[@]}; do
/data/ddb/tools/solr/current/bin/solr create -c $core -n $core
done

NEUER SLAVE: 
cd /data/ddb/tools/solr/data/<indexname>/conf
cp /data/ddb/Cortex/conf/solr/<indexname/conf/* .

NEUER MASTER:
cd /data/ddb/tools/solr/data/<indexname>
rm -r conf
ln -s /data/ddb/Cortex/conf/solr/<indexname/conf


  • Adapt log4j2.xml, set SizeBasedTriggeringPolicy size = 1 GB, set DefaultRolloverStrategy max = 5