====== BlazeGraph ======
* Install BlazeGraph into a second instance of Tomcat7
# wget http://it.apache.contactlab.it/tomcat/tomcat-7/v7.0.75/bin/apache-tomcat-7.0.75.tar.gz
# tar xf apache-tomcat-7.0.75.tar.gz
# mv apache-tomcat-7.0.75 /usr/share/tomcat-blzg
# useradd -m -d /var/bigdata -s /bin/false blazegraph
# nano -w /var/bigdata/.bash_profile
export BLZG_CONF=/etc/bigdata
export CATALINA_HOME=/usr/share/tomcat-blzg
export CATALINA_PID="/usr/share/tomcat-blzg/catalina.pid"
export JAVA_HOME=/usr/lib/jvm/java-8-oracle/jre
export BLZG_USER=blazegraph
export PATH=/usr/lib/jvm/java-8-oracle/jre/bin:/usr/share/tomcat-blzg/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
export JAVA_OPTS="-server -Djava.awt.headless=true -Xmx8g -Xms8g -Dcom.bigdata.rdf.sail.webapp.ConfigParams.propertyFile=/etc/bigdata/RWStore.properties -Dlog4j.configuration=/etc/bigdata/log4j.properties -Dfile.encoding=UTF-8 -Dsun.jnu.encoding=UTF-8 -XX:+UseG1GC -XX:+DisableExplicitGC"
NOTE: instead of "-XX:+UseParallelOldGC" may be better "-XX:+UseG1GC -XX:+DisableExplicitGC" [thanks Diego!]
NOTE: add initial mem size to min and max, so "-Xmx8g" change into "-Xms8g -Xmx8g" [thanks Diego!]
# nano -w /usr/share/tomcat-blzg/conf/server.xml
-
+
-
+ redirectPort="8444" />
-
+
# mkdir -p /var/bigdata/logs
# mkdir -p /etc/bigdata/
# git clone https://github.com/discoverygarden/blazegraph_conf
# cp blazegraph_conf/RWStore.properties /etc/bigdata
# cp blazegraph_conf/log4j.properties /etc/bigdata
# cp blazegraph_conf/blazegraph_init /etc/init.d/blazegraph
# cd /usr/share/tomcat-blzg/webapps
# wget https://sourceforge.net/projects/bigdata/files/bigdata/2.1.4/blazegraph.war/download -O blazegraph.war
# chowner -R blazegraph:blazegraph /usr/share/tomcat-blzg
# chowner -R blazegraph:blazegraph /var/bigdata
# chowner -R blazegraph:blazegraph /etc/bigdata
# chmoder +x /etc/init.d/blazegraph
# update-rc.d blazegraph start 64 2 3 4 5 . stop 36 0 1 6 .
# service blazegraph start
Check BlazeGraph at port 8081.
# service blazegraph stop