Environment Setup for Installing Cassandra
Cassandra is available for download from the Web at http://cassandra.apache.org
The simplest way to get started is to download the prebuilt binary. please refer to steps below for linux:
1.) Download Cassandra in any directory
mkdir -p /root/nosql
cd /root/nosql
#Please download latest version available
wget http://www.us.apache.org/dist/cassandra/1.2.16/apache-cassandra-1.2.16-bin.tar.gz
tar -xvzf apache-cassandra-1.2.16-bin.tar.gz
mv apache-cassandra-1.2.16 /root/nosql/cassandra.
2.) Next, make sure that the folders Cassandra accesses, such as the log folder, exists and that Cassandra has the right to write on it:
sudo mkdir /var/lib/cassandra
sudo mkdir /var/log/cassandra
sudo chown -R $USER:$GROUP /var/lib/cassandra
sudo chown -R $USER:$GROUP /var/log/Cassandra
3.) Set Cassandra’s variables
vim ~/.bash_profile
#add following lines to .bash_profile
export CASSANDRA_HOME=/root/nosql/cassandra
export PATH=$PATH:$CASSANDRA_HOME/bin
4.) Running Cassandra
sudo sh /root/nosql/cassandra/bin/cassandra
5.) Crosscheck with Cassandra cli
sudo sh /root/nosql/cassandra/bin/cassandra-cli
You will see window like this:-
A detailed understanding of Apache Cassandra is available in this blog post for your perusal!