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第 49 章 Cassandra

目錄

49.1. Getting Started
49.1.1. Downloading and Installation
49.1.2. Running Cassandra
49.1.3. cli tool
49.1.4. Testing Cassandra
49.2. Configure Cassandra
49.2.1. Envionment variables
49.2.2. log4j.properties
49.2.3. storage-conf.xml
49.3. Keyspace
49.3.1. Schema
49.3.1.1. Keyspace
49.3.1.2. Column family
49.3.2. Keyspace example
49.4. Cluster
49.4.1. Running a cluster
49.4.2. Running a single node
49.4.3. nodetool

http://incubator.apache.org/cassandra/

49.1. Getting Started

49.1.1. Downloading and Installation

$ cd /srv/

		
$ cd /usr/local/src/

$ sudo wget -c http://apache.freelamp.com/cassandra/0.5.1/apache-cassandra-0.5.1-bin.tar.gz
$ sudo tar zxvf apache-cassandra-0.5.1-bin.tar.gz
$ cp -r /usr/local/src/apache-cassandra-0.5.1 /srv/
$ cd /srv/
$ sudo ln -s apache-cassandra-0.5.1 apache-cassandra
$ cd apache-cassandra
		
		

49.1.2. Running Cassandra

Running Cassandra

		
$ bin/cassandra
$ Listening for transport dt_socket at address: 8888
INFO - Saved Token not found. Using 70882909557229809272696372631016976044
INFO - Starting up server gossip
		
		

49.1.3. cli tool

cli

$ bin/cassandra-cli
		
neo@db:/srv/apache-cassandra$ bin/cassandra-cli
Welcome to cassandra CLI.

Type 'help' or '?' for help. Type 'quit' or 'exit' to quit.
cassandra>
		
		

		
cassandra> connect localhost/9160
Connected to localhost/9160
		
		

49.1.4. Testing Cassandra

test

		
cassandra> show keyspaces
Keyspace1
system
		
		

insert value

		
cassandra> set Keyspace1.Standard1['member']['name']='neo'
Value inserted.
cassandra> set Keyspace1.Standard1['member']['age']='27'
Value inserted.
cassandra> set Keyspace1.Standard1['member']['email']='openunix@163.com'
Value inserted.
cassandra>
cassandra> get Keyspace1.Standard1['member']
=> (column=name, value=neo, timestamp=1271070497471)
=> (column=email, value=openunix@163.com, timestamp=1271070498334)
=> (column=age, value=27, timestamp=1271070497519)
Returned 3 results.
cassandra>