Apache Solr is an Open Source project by Apache Lucene and a popular enterprise search engine which made in java , It has lots of features like full text searching , hit highlighting, faceted search, real-time indexing, dynamic clustering, database integration etc.
This Tutorial Document Included three parts as
- Install Solr
- Set Admin Password
- Create cores
- Install Solr
- For Solr install we should have java compatibility for that install java
[root@server ~]# yum install java-1.8.0-openjdk.x86_64
2. Download apache solr 5.2.1
[root@server ~]# cd /opt
[root@server opt]# wget http://apache.go-parts.com/lucene/solr/5.2.1/solr-5.2.1.tgz && tar xvf solr-5.2.1.tgz
Follow the steps to start and stop script for apache solr
#cp /opt/solr-5.2.1/bin/init.d/solr /etc/init.d/solr
Edit /etc/init.d/solr
#vi /etc/init.d/solr
Change the lines ,Line Number 36
SOLR_INSTALL_DIR=/opt/solr To SOLR_INSTALL_DIR=/ opt/solr-5.2.1
search and replace
SOLR_ENV=/var/solr/solr.in.sh to SOLR_ENV= /opt/solr-5.2.1/bin/ solr.in.sh
search and replace
RUNAS=solr to RUNAS=root
Save and exit
# chmod 755 /etc/init.d/solr # chown root:root /etc/init.d/solr
Add solr for start at boot time
#cd /etc/init.d
#chkconfig --add solr
Allow Solr port in firewall
#iptables -A INPUT -p tcp -m tcp --dport 8983 -j ACCEPT
#service iptables save
- Set Admin Password
1. Go to the apache solr configure directory
#cd /opt/solr-5.2.1/server/etc
Create a file “realm.properties” and add
admin: password, admin-role
- Open jetty.xml and add
<Call name="addBean"> <Arg> <New class="org.eclipse.jetty.security.HashLoginService"> <Set name="name">Solr Realm</Set> <Set name="config"><SystemProperty name="jetty.home" default="."/>/etc/realm.properties</Set> <Set name="refreshInterval">0</Set> </New> </Arg> </Call>
Save and exit
- Open webdefault.xml and add
<security-constraint> <web-resource-collection> <web-resource-name>Disable TRACE</web-resource-name> <url-pattern>/</url-pattern> <http-method>TRACE</http-method> </web-resource-collection> <web-resource-collection> <web-resource-name>Solr authenticated application</web-resource-name> <url-pattern>/*</url-pattern> </web-resource-collection> <auth-constraint> <role-name>admin-role</role-name> </auth-constraint> <auth-constraint/> <login-config> <auth-method>BASIC</auth-method> <realm-name>Solr Realm</realm-name> </login-config> </security-constraint>
Save and exit
Now Star Solr Service
#/etc/init.d/solr start
Open the browser and access solr with http://your_ip:8983
Now login with your user name and password which you have added in realm.properties , in my case the the user name is “admin” and password is “password”
- Create Multiple Cores
You can add multiple cores by the following commands
# cd /opt/solr-5.2.1/ # bin/solr create -c core1 # bin/solr create -c core2
Thanks for reading this tutorial, if you have any query you can ask in comments
Reference Links:
http://lucene.apache.org/
One comment on “Install Apache Solr 5.2.1 on RHEL / CentOs 6 with multicore”
Deepak
July 11, 2017 at 6:55 amHello, I m new to redhat. I have redhat RHEL linux box and I m trying to install solr for it should I use custom directory for the same. like “/var/www/html/solr” .