Install Solr 7.4

Step 1. First, Install Java.

Because solr are Java based softwares we need the Java environment (As it is advised in the Solr wiki : prefere a full JDK to a simple JRE.)

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

sudo apt-get install oracle-java8-set-default

Step 3 – Setup JAVA_HOME and JRE_HOME Variable

nano /etc/environment

add two new lines

JAVA_HOME=/usr/lib/jvm/java-8-oracle
JRE_HOME=/usr/lib/jvm/java-8-oracle/jre

reboot then
to validate run  echo $JAVA_HOME

Install Solr

wget http://archive.apache.org/dist/lucene/solr/7.4.0/solr-7.4.0.tgz

tar xzf solr-7.4.0.tgz solr-7.4.0/bin/install_solr_service.sh --strip-components=2

sudo bash ./install_solr_service.sh  solr-7.4.0.tgz

Create Solr Collection with name TestCollection1

sudo su - solr -c "/opt/solr/bin/solr create -c TestCollection1 -n data_driven_schema_configs"

this will create new folder with name TestCollection1  in the path /var/solr/data

Start/Stop Solr

sudo service solr stop

sudo service solr start

sudo service solr status

After install Solr it will be available on 

http://  Server IP  :8983/solr/


View Live Solr Logs
tail -f /var/solr/logs/solr.log