Shulou(Shulou.com)06/03 Report--

Hbase installation

1. Decompression

Tar-zxvf / hbase-1.2.9-bin.tar.gz-C / usr/local

Mv hbase-1.2.9 hbase

2. Modify the configuration file: conf/hbase-env.sh

Cd hbase

Vim conf/hbase-env.sh

Export HBASE_MANAGES_ZK=false

Export JAVA_HOME=/usr/local/jdk1.8

Export HBASE_CLASSPATH=/usr/local/hadoop/etc/hadoop

Explanation: a distributed running Hbase relies on a zookeeper cluster. All the nodes and guests

All clients must be able to access zookeeper. By default, Hbase manages a zookeep cluster

That is, Hbase comes with a zookeep cluster by default. This cluster will start with the startup of Hbase. And

In actual business projects, it is usually easier to manage a zookeeper cluster by yourself to optimize the configuration of Gao Gao set.

Group productivity, but you need to configure Hbase. Need to modify the content in conf/hbase-env.sh

HBASE_MANAGES_ZK to switch. This value defaults to true, which is used to enable Hbase to start

At the same time, zookeeper. In this lab, we run the zookeeper cluster independently.

Therefore, its property value is changed to false.

3. Configure conf/hbase-site.xml

Hbase.rootdir

Hdfs://Master:9000/hbase

Hbase.cluster.distributed

True

Hbase.master

Hdfs://Master:6000

Hbase.zookeeper.quorum

Master,Slave1,Slave2

Hbase.zookeeper.property.dataDir

/ usr/local/zookeeper

Explanation: to run fully distributed mode, add an attribute hbase.cluster.distributed

Set it to true and then set hbase.rootdir to the location of HDFS's NameNode

Hbase.rootdir: this directory is a shared directory for region server and is used to persist Hbase.

The URL needs to be 'completely correct' and contains the scheme of the file system

Hbase.cluster.distributed: the running mode of Hbase. False is in stand-alone mode, true

It's distributed mode. If false,Hbase and Zookeeper run in the same JVM. In

Hbase-site.xml configuration zookeeper: when Hbase manages zookeeper, you can use the

Modify zoo.cfg to configure zookeeper. For zookeepr configuration, you should at least

The ensemble servers of zookeepr is listed in hbase-site.xml. The specific fields are

Hbase.zookeeper.quorum. The address list of the Zookeeper cluster is listed here, separated by commas.

Configuration in zoo.conf of hbase.zookeeper.property.clientPort:ZooKeeper

The port to which the client connects.

Configuration in zoo.conf of hbase.zookeeper.property.dataDir:ZooKeeper. Yes

For a stand-alone Zookeeper, specify the host and port of the Zookeeper. Need to be in hbase-site.xml

Set up in

4. Configure conf/regionservers

The contents are as follows

5. Copy of hadoop configuration file

Copy the hadoop configuration file to the conf directory of hbase:

(the current location is the conf configuration folder for hbased)

Cp / usr/hadoop/hadoop-2.7.3/etc/hadoop/hdfs-site.xml.

Cp / usr/hadoop/hadoop-2.7.3/etc/hadoop/core-site.xml.

6. Distribute hbase

Scp-r / usr/local/hbase root@slave1:/usr/ local

Scp-r / usr/loca/hbase root@slave2:/usr/local

7. Configure environment variables

Vi / etc/profile

Configure the environment variable Hbase

# set hbase environment

Export HBASE_HOME=/usr/local/hbase

Export PATH=$PATH:$HBASE_HOME/bin

Effective environment variables:

Source / etc/profile

8. Run and test

Execute on master (make sure hadoop and zookeeper are turned on)

Bin/start-hbase.sh

Check whether the process is started on three nodes

9. Visit the hbase web interface of master

Http://master IP:16010/master-status

10. Enter the hbase interface to check the status and version

Enter hbase/bin

. / hbase shell

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