How to install Neo4j in Cent OS 7

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NEO4J
Neo4j is an open-source NoSQL native graph database which provides an ACID compliant transactional backend for your applications.


PREREQUISITES
  1. User with sudo permission
  2. CentOS 7 server instance with 2 GB RAM (recommended)
  3. Java 8 Runtime

INSTALLATION PROCEDURE

       Follow the below steps to install neo4j on your CentOS machine.

       Step 1: Installation through wget:
a.      First download the package of the package from neo4j website to the specified directory where ever you want to install
   --> wget https://neo4j.com/artifact.php?name=neo4j-community-3.2.3-unix.tar.gz

b.     Extract the downloaded file using tar command
   --> tar -xzvf artifact.php\?name\=neo4j-community-3.2.3-unix.tar.gz

c.       Change the configuration in neo4j.conf which is present in conf folder
    --> nano ./conf/neo4j.conf

                                                         i. If your neo4j is of older version uncomment the following statement 
    -->  dbms.allow_format_migration=true

                                                       ii. If you want to see the running neo4j in the browser, uncomment the following statement and give the current ip-address or public DNS name. 
    --> dbms.connectors.default_advertised_address=ip-address or public DNS name

                                                     iii.  If you want to point the db to a particular folder, first paste that folder in databases folder present in inside the data folder where defaultly graph.db folder is present 
    --> cd ./data/databases

And uncomment this statement in neo4j.conf
    --> dbms.active_database=graph.db             

d.    Once all the configurations are done use the following command to start or stop or restart or check the status or check the version or check the console
                --> ./bin/neo4j { console | start | stop | restart | status | version }

Ex: For starting the neo4j run as  ----->   ./bin/neo4j start

e.     To check the logs of the neo4j use this command
                 --> nano ./logs/neo4j.log

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