Big data cluster construction --- "zookeeper" - rookie Xiaohui

Big data cluster construction-"zookeeper article"-rookie Xiaohui

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Summary:
Big data cluster construction (zookeeper, high-availability hadoop, high-availability hbase)

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Two, zookeeper cluster construction

1. create:mkdir -p /opt/zookeeper
2. enter:cd /opt/zookeeper
3. Upload:
   
4. Unzip tar -zxvf zookeeper-3.4.12.tar.gz
   5. Configure zoo.cfg

cd /opt/zookeeper/zookeeper-3.4.12/conf/
mv zoo_sample.cfg  zoo.cfg
vi zoo.cfg
//修改dataDir
dataDir=/opt/zookeeper/data
//添加集群信息
server.1=192.168.80.128:2888:3888
server.2=192.168.80.129:2888:3888
server.3=192.168.80.130:2888:3888

6. Create dataDir:mkdir -p /opt/zookeeper/data

7. Create a myid file and fill in your own id; for example: write "1" in "zhiyou001"

cd /opt/zookeeper/data/
echo "1">myid

8. Send to other computers

scp -r /opt/zookeeper/ root@zhiyou002:/opt/zookeeper/
scp -r /opt/zookeeper/ root@zhiyou003:/opt/zookeeper/

9. Modify myid on other hosts separately

zhoiyou002:

cd /opt/zookeeper/data/
echo "2">myid

zhoiyou003:

cd /opt/zookeeper/data/
echo "3">myid

10. Three simultaneous start zookeeper

cd /opt/zookeeper/zookeeper-3.4.12/bin/
//启动
./zkServer.sh start
//查看状态
./zkServer.sh status

zhiyou001:

• 
  zhiyou002:

• 
  zhiyou003:

• 

• Current status: 3 is the master node, and 1 and 2 are the slave nodes. One stop, the other two re-elect a new master node

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Next article:
Big data cluster construction-"Highly available hadoop articles"