部署分佈式zookeeper部署分佈式zookeeper的步驟：

部署分佈式zookeeper的步驟：

1. 從官網下載zookeepr的最新版本

http://zookeeper.apache.org/releases.html

本文下載的版本是zookeeper-3.3.3

2. 本文將3個peer都部署在一臺機器上。

|-- server1
|   `-- zookeeper-3.3.3
|-- server2
|   `-- zookeeper-3.3.3
`-- server3
    `-- zookeeper-3.3.3

3. 以server1爲例，配置server1/zookeeper-3.3.3/conf/zoo.cfg，conf目錄下自帶zoo_sample.cfg,可以基於這個修改。

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5

# the directory where the snapshot is stored.
dataDir=/export/crawlspace/mahadev/zookeeper/server1/data
# the port at which the clients will connect

clientPort=12181

server.1=10.20.146.29:12888:13888
server.2=10.20.146.29:22888:23888
server.3=10.20.146.29:32888:33888

 

server2和server3的配置拷貝一份，然後分別修改dataDir和clientPort

server2:

dataDir=/export/crawlspace/mahadev/zookeeper/server2/data

clientPort=22181

server3:

dataDir=/export/crawlspace/mahadev/zookeeper/server3/data

clientPort=32181

4. 創建myid到各個server的data目錄下：

cat 1 > /export/crawlspace/mahadev/zookeeper/server1/data

cat 2 > /export/crawlspace/mahadev/zookeeper/server2/data

cat 3 > /export/crawlspace/mahadev/zookeeper/server3/data

 

5. 啓動：

在各個server的部署目錄下啓動服務

sh bin/zkServer.sh start

 

啓動第一個的時候會拋異常，這是因爲其他server還沒有啓動的緣故。