對Debian和Gentoo下部署Cassandra指南

下載Cassandra

從 http://incubator.apache.org/cassandra/download/ 選擇二進制包下載，包名類似 apache-cassandra-incubating-x.y.z-bin.tar.gz 。

設置和運行

爲了方便，下面所有命令以root身份執行。

1.以一個獨立節點運行

tar -zxvf cassandra-$VERSION.tar.gz
    mv cassandra-$VERSION /opt/cassandra

    sudo mkdir -p /var/log/cassandra
    sudo mkdir -p /var/lib/cassandra

    echo 'alias PATH=$PATH:/opt/cassandra/bin/'
 >> ~/.bashrc && source ~/.bashrc

tar -zxvf cassandra-$VERSION.tar.gz --editorbr-- mv cassandra-$VERSION /opt/cassandra --editorbr-- --editorbr-- sudo mkdir -p /var/log/cassandra --editorbr-- sudo mkdir -p /var/lib/cassandra --editorbr-- --editorbr-- echo 'alias PATH=$PATH:/opt/cassandra/bin/' >> ~/.bashrc && source ~/.bashrc 創建start-cassandra.sh

/opt/cassandra/bin/cassand

/opt/cassandra/bin/cassand  創 建stop-cassandra.sh

kill `ps aux |  fgrep  $USER | grep cassandra | grep -v 
'grep'
 | awk 
'{print $2}'
`

kill `ps aux | fgrep $USER | grep cassandra | grep -v 'grep' | awk '{print $2}'` 創建show-cassandra.sh

#/bin/bash
    echo "cassandra PID: `ps aux |  fgrep  $USER | grep cassandra | grep -v 'grep' | awk '{print $2}'`"

#/bin/bash --editorbr-- echo "cassandra PID: `ps aux | fgrep $USER | grep cassandra | grep -v 'grep' | awk '{print $2}'`" 以後臺方式運行節點：

./start-cassandra.sh

./start-cassandra.sh 或以前臺方式運行：

cassandra -f

cassandra -f 測試

cassandra-cli --host localhost --port 9160

cassandra-cli --host localhost --port 9160 如果成功會顯示：

Connected to localhost/9160
   Welcome to cassandra CLI.

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

Connected to localhost/9160 --editorbr-- Welcome to cassandra CLI. --editorbr-- --editorbr-- Type 'help' or '?' for help. Type 'quit' or 'exit' to quit. --editorbr-- cassandra> 嘗試寫和讀鍵：

set
 Keyspace1.Standard1[
'shugelee'
][
'first'
] = 
'Lee'
  set
 Keyspace1.Standard1[
'shugelee'
][
'last'
] = 
'Li'
  set
 Keyspace1.Standard1[
'shugelee'
][
'age'
] = 
'21'

  get
 Keyspace1.Standard1[
'shugelee'
]

set Keyspace1.Standard1['shugelee']['first'] = 'Lee' --editorbr-- set Keyspace1.Standard1['shugelee']['last'] = 'Li' --editorbr-- set Keyspace1.Standard1['shugelee']['age'] = '21' --editorbr-- --editorbr-- get Keyspace1.Standard1['shugelee'] 結果類似：

(column=last, value=li; timestamp=1263050140529)
   (column=first, value=lee; timestamp=1263050117638)
   (column=age, value=18; timestamp=1263050155638)
 Returned 3 rows.

(column=last, value=li; timestamp=1263050140529) --editorbr-- (column=first, value=lee; timestamp=1263050117638) --editorbr-- (column=age, value=18; timestamp=1263050155638) --editorbr-- Returned 3 rows.
2.以一個簇（集羣）運行

假定兩臺debian均按上面安裝並初步設置了cassandra環境：

• A 192.168.1.101 [development server]
• B 192.168.1.105 [developer Lee Li]

將A 192.168.1.101 [development server]作爲主server運行。

development server的設置

<Seed>127.0.0.1</Seed>

<Seed>127.0.0.1</Seed> 改爲：

<Seed>192.168.1.101</Seed>

<Seed>192.168.1.101</Seed>

<ListenAddress>localhost</ListenAddress>

<ListenAddress>localhost</ListenAddress> 改爲：

<ListenAddress>192.168.1.105</ListenAddress>

<ListenAddress>192.168.1.105</ListenAddress>

<ThriftAddress>localhost</ThriftAddress>

<ThriftAddress>localhost</ThriftAddress> 改爲：

<ThriftAddress>0.0.0.0</ThriftAddress>

<ThriftAddress>0.0.0.0</ThriftAddress>developer Lee Li的設置

<Seed>127.0.0.1</Seed>

<Seed>127.0.0.1</Seed> 改爲：

<Seed>192.168.1.101</Seed>
    <Seed>192.168.1.105</Seed>

<Seed>192.168.1.101</Seed> --editorbr-- <Seed>192.168.1.105</Seed>

<ListenAddress>localhost</ListenAddress>

<ListenAddress>localhost</ListenAddress> 改爲：

<ListenAddress>192.168.1.101</ListenAddress>

<ListenAddress>192.168.1.101</ListenAddress>

<ThriftAddress>localhost</ThriftAddress>

<ThriftAddress>localhost</ThriftAddress> 改爲：

<ThriftAddress>0.0.0.0</ThriftAddress>

<ThriftAddress>0.0.0.0</ThriftAddress> 分別運行A和B上的cassandra：

canssandra -f

canssandra -f 分別在A和B上測試：

nodeprobe -host 192.168.1.101 ring

nodeprobe -host 192.168.1.101 ring 如果成功，結果類似：

DEBUG - Loading settings from /opt/cassandra/bin/../conf/storage-conf.xml
 DEBUG - Syncing log with a period of 1000
 Starting Token                                 Ending Token                                 Size Address        Ring
 132617574668126261121070408499066554197        127319937893509951017249225297128612859         1 192.168.1.101  |<--|
 127319937893509951017249225297128612859        132617574668126261121070408499066554197         1 192.168.1.105  |-->|

DEBUG - Loading settings from /opt/cassandra/bin/../conf/storage-conf.xml --editorbr-- DEBUG - Syncing log with a period of 1000 --editorbr-- Starting Token Ending Token Size Address Ring --editorbr-- 132617574668126261121070408499066554197 127319937893509951017249225297128612859 1 192.168.1.101 |<--| --editorbr-- 127319937893509951017249225297128612859 132617574668126261121070408499066554197 1 192.168.1.105 |-->| 分別在A和B上測試鏈接到一個node：

cassandra-cli  --host 192.168.1.105 --port 9160

cassandra-cli --host 192.168.1.105 --port 9160 如果成功，結果類似：

# cassandra-cli  --host 192.168.1.105 --port 9160
 Connected to 192.168.1.105/9160
 Welcome to cassandra CLI.

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

# cassandra-cli --host 192.168.1.105 --port 9160 --editorbr-- Connected to 192.168.1.105/9160 --editorbr-- Welcome to cassandra CLI. --editorbr-- --editorbr-- Type 'help' or '?' for help. Type 'quit' or 'exit' to quit. --editorbr-- cassandra>
3.測試清單

測試清單一：

• A連接到自己的cassandra
• A連接到B的cassandra
• B連接到自己的cassandra
• B連接到A的cassandra
• A連接到自己的cassandra，寫入並讀取鍵值
• A連接到B的cassandra，寫入並讀取鍵值
• B連接到自己的cassandra，寫入並讀取鍵值
• B連接到A的cassandra，寫入並讀取鍵值

測試清單二：

• B停止Cassandra服務，B連接到A並寫入數據，重啓B的Cassandra服務，B連接到自身的Casssandra，查看剛剛在Ａ寫入 的數據（以-f方式運行觀察，B重啓時，立即自動與Ａ同步！非常好！）

4.在各個平臺下運行

Gentoo GNU/Linux + JRE6下運行成功

Windows XP SP3 + JRE6下運行成功