第 3 章 Cassandra

Myth丶恋晨 2021-09-19 10:32 352阅读 0赞

**目录**

3.1. Getting Started

3.1.1. Downloading and Installation 3.1.2. Running Cassandra 3.1.3. cli tool 3.1.4. Testing Cassandra

3.2. Configure Cassandra

3.2.1. Envionment variables 3.2.2. log4j.properties 3.2.3. storage-conf.xml

3.3. Keyspace

3.3.1. Schema

3.3.1.1. Keyspace 3.3.1.2. Column family

3.3.1.2.1. Name 3.3.1.2.2. Column 3.3.1.2.3. Super column 3.3.1.2.4. Sorting

3.3.2. Keyspace example

3.4. Cluster

3.4.1. Running a cluster 3.4.2. Running a single node 3.4.3. nodetool

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

## 3.1. Getting Started ##

### 3.1.1. 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

### 3.1.2. 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

### 3.1.3. 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

### 3.1.4. 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>

原文出处：Netkiller 系列 手札  
本文作者：陈景峯  
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