Detailed explanation of how to install HBase1.4 on Centos7-CentOS-php.cn

Detailed explanation of how to install HBase1.4 on Centos7

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Release： 2020-11-02 14:04:00

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The following column centos introductory tutorial will introduce to you how to install HBase1.4 on Centos7. I hope it will be helpful to friends in need!

Preparation

1. The hadoop cluster has been installed. Here we will install hbase1.4 on the basis of Hadoop2.7 installed on Centos7, so it is the same three machines. The plan is as follows:

hostname	IP address	Deployment planning
node1	172.20 .0.4	Master, RegionServer
node2	172.20.0.5	Backup-Master, RegionServer
node3	172.20.0.6	RegionServer

2. Download the installation package from the official website: hbase-1.4.12 -bin.tar.gz (it is recommended to go to the open source mirror site of Tsinghua University or University of Science and Technology of China).

3. hbase will be deployed in the path/mydata that already exists on three machines. Configure the environment variables:

export HBASE_HOME=/mydata/hbase-1.4.12export PATH=${HBASE_HOME}/bin:$PATH

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Configuration

First modify the hbase configuration on node1 and complete. Then uniformly copy it to other nodes to ensure that the configuration content is consistent.

Extract hbase-1.4.12-bin.tar.gz to /mydata/, enter /mydata/hbase-1.4.12/conf, and configure:


  
    hbase.cluster.distributed
    true
  
  
    hbase.rootdir
    hdfs://node1:9000/hbase
  
  
    hbase.zookeeper.quorum
    node1,node2,node3
  
  
    hbase.zookeeper.property.dataDir
    /mydata/data/zookeeper

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# 文件名 regionserversnode1
node2
node3

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# 文件名 backup-masters 该文件需要新建node2

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in the hadoop configuration

Configuration item	Meaning
hbase.cluster.distributed Copy after login	Distributed mode
hbase.rootdir Copy after login	The data storage location of hbase, here is /hbase of hdfs, host:port corresponds to fs.defaultFS
hbase.zookeeper.quorum Copy after login	All hosts where zookeeper is to be deployed, usually more than three, of course you can deploy it on each one at most
hbase.zookeeper.property.dataDir Copy after login	Data storage location when zookeeper is running
regionservers Copy after login	All RegionServers are usually deployed on each DataNode
backup-masters Copy after login	As a backup Master

Note: The zookeeper here uses the one that comes with hbase. Of course, you can also use the external one, which will not be mentioned here. .

The default log directory is in $HBASE_HOME/logs, and the pid file is in /tmp, which can be modified:

# 文件名 hbase-env.shexport HBASE_LOG_DIR=/mydata/logs/hbase
export HBASE_PID_DIR=/mydata/data/pid

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After the configuration is completed, copy the hbase program file to the other two:

node1> scp -r /mydata/hbase-1.4.12/ root@node2:/mydata/node1> scp -r /mydata/hbase-1.4.12/ root@node3:/mydata/

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Start

node1> start-hbase.sh

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##node2 Use the jps command to verify the process on node3 HMaster, HRegionServer, HQuorumPeer Use the jps command to verify the process on node3HRegionServer, HQuorumPeer

Use jps command to verify the process on node1	HMaster, HRegionServer, HQuorumPeer

Note: HQuorumPeer is the process of zookeeper. Nodes that do not deploy zookeeper do not have it; if an external zookeeper is used, the process name becomes QuorumPeerMain.

Test

You can access the following address through the browser:

Master’s backendhttp://node1 :16010http://node1:16030

RegionServer’s background

http://node2:16030

http://node3:16030

#Access the former and you can see:

Execute below An official example (the following command can be executed on any machine where hbase is deployed):

node> hbase shell
hbase> create 'test', 'cf'
hbase> list 'test'
hbase> describe 'test'
hbase> put 'test', 'row1', 'cf:a', 'value1'
hbase> put 'test', 'row2', 'cf:b', 'value2'
hbase> put 'test', 'row3', 'cf:c', 'value3'
hbase> scan 'test'
hbase> get 'test', 'row1'

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You can see the information of this table in the browser: http://node1:16010/table. jsp?name=test.

over

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