These instructions are for Ubuntu 13.10 x64. Each server should have a proper resolvable hostname!
sudo aptitude install openjdk-7-jre-headless java7-runtime-headless
Setup Zookeper and make it a cluster
sudo aptitude install zookeeperd zookeeper-bin
sudo service zookeeper stop
Set up a unique numeric id (1-255) per server
sudo vi /etc/zookeeper/conf/myid
Add each server to the cluster
sudo vi /etc/zookeeper/conf/zoo.cfg
Start the cluster (each server)
sudo service zookeeper start
If you examine the log (/var/log/zookeeper/zookeeper.log) you can see the cluster activity.
sudo aptitude install tomcat7-admin tomcat7
Edit the tomcat users for the UI
sudo vi /etc/tomcat7/tomcat-users.xml
sudo vi /etc/default/tomcat7
Add the following to /etc/defaults/tomcat7, adding the zookeeper cluster
servers with their proper hostnames or IP addresses to the zkHost
definition next time Tomcat starts:
SOLR_OPTS="-DzkHost=zookeeper1:2181,zookeeper2:2181 -DhostPort=8080"
JAVA_OPTS="${JAVA_OPTS} ${SOLR_OPTS}"
curl -O http://psg.mtu.edu/pub/apache/lucene/solr/4.6.0/solr-4.6.0.tgz
tar xvzf solr-4.6.0.tgz
cd solr-4.6.0/example
sudo mkdir /var/lib/solr
sudo cp -r solr/collection1 solr/solr.xml /var/lib/solr
sudo vi /var/lib/solr/solr.xml
Alter the solr.xml:
hostvalue from${host:}to${host:hostname}with the proper hostname (alternately set the hostname in the Tomcat server.xml or as part of the SOLR_OPTS in /etc/default/tomcat7 above)hostPortvalue from${jetty.port:8983}to${hostPort:8080}
And make sure Tomcat owns the Solr home:
sudo chown -R tomcat7:tomcat7 /var/lib/solr
Upload the config to Zookeeper, link it to the first collection and setup the bootstrap
Only on the first server to setup the first collection to bootstrap its configuration.
java -jar start.jar
Wait until you see it has extracted the solr.war, then Ctrl+C to stop it. This is necessary to extract the jars to support cloud-scripts/zkcli.sh
cloud-scripts/zkcli.sh -cmd upconfig -z localhost:2181 -d /var/lib/solr/collection1/conf -n default
cloud-scripts/zkcli.sh -cmd linkconfig -z localhost:2181 -c collection1 -n default -s /var/lib/solr
cloud-scripts/zkcli.sh -cmd bootstrap -z localhost:2181 -s /var/lib/solr
Now set up a place for Solr to live and run it under Tomcat
sudo mkdir /var/lib/solr
sudo mkdir /var/lib/tomcat7/lib
sudo cp webapps/solr.war /var/lib/solr/
sudo cp lib/ext/* /var/lib/tomcat7/lib
sudo cp resources/log4j.properties /var/lib/tomcat7/lib/
Create the Tomcat context for Solr
sudo vi /etc/tomcat7/Catalina/localhost/solr.xml
with the following content:
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/solr/home"
docBase="/var/lib/solr/solr.war"
antiResourceLocking="false"
privileged="true">
<Environment name="solr/home" override="true" type="java.lang.String" value="/var/lib/solr" />
</Context>
Restart Tomcat.
sudo service tomcat7 restart
Repeat all but the Zookeeper bootstrapping on the first server.
Create a new collection by hitting up one of the servers:
http://server:8080/solr/admin/collections?action=CREATE&name=hello&numShards=2&replicationFactor=1&collection.configName=default
Index some stuff and query:
http://server:8080/solr/hello/select?q=*%3A*&wt=xml&indent=true
Add more configurations and go!