1. 암바리에서 제공 안해서 따로 설치해야함

su root

• python version 업그레이드가 필요한데, centos가 python 2.6이 필요해서 그냥 하면 안됨
• SCL utils라는걸 설치해서 python version을 왔다갔다 하도록 할거임

yum install scl-utils

yum install centos-release-scl-rh

yum install python27

scl enable python27 bash

cd /etc/yum.repos.d

vi datastax.repo

[datastax]
name = DataStax Repo for Apache Cassandra
baseurl = <http://rpm.datastax.com/community>
enabled = 1
gpgcheck = 0

cat datastax.repo

yum install dsc30

pip install cqlsh

service cassandra start

cqlsh

cqlsh --cqlversion="3.4.0"

CREATE KEYSPACE movielens \\
	WITH replication = {'class': 'SimpleStrategy', 'replaction_factor':'1'} \\
	AND durable_writes = true;}

USE movielens;

CREATE TABLE users (
	user_id int, 
	age int, 
	gender text, 
	occupation text, 
	zip text, 
	PRIMARY KEY (user_id)
);

DESCRIBE TABLE users;

SELECT * FROM users;