Install Apache Cassandra on OS X

 # Requirement
Java 7 

# Download Apache Cassandra 2.0.10 from http://cassandra.apache.org/download/
wget http://www.apache.org/dyn/closer.cgi?path=/cassandra/2.0.10/apache-cassandra-2.0.10-bin.tar.gz

# Extract to e.g /usr/local; create symlink
cd /usr/local
tar -xzvf apache-cassandra-2.0.10-bin.tar.gz
ln -s apache-cassandra-2.0.10-bin.tar.gz cassandra

# Create Cassandra directories
sudo mkdir /var/lib/cassandra
sudo mkdir /var/lib/cassandra/data
sudo mkdir /var/lib/cassandra/commitlog
sudo mkdir /var/lib/cassandra/saved_caches
sudo mkdir /var/log/cassandra

# Run Cassandra
cd /usr/local/cassandra
sudo bin/cassandra -f

# Test connection; Open new terminal window
cd /usr/local/cassandra
bin/cqlsh