Hbase Installation on Mac

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1. Overview

HBase is a Hadoop project which is an Open Source, distributed Hadoop database which has its genesis in the Google’sBigtable. Its programming language is Java. Also, it is a high availability database that exclusively runs on top of the HDFS.
HBase is located in the upper layer of HDFS, providing storage downwards and computing upwards.

2. Pre-Requisite

1. You have homebrew installed. For directions on installing homebrew, see http://brew.sh/
2. You have Java installed and Java home configured properly, see
   https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
   https://stackoverflow.com/questions/22842743/how-to-set-java-home-environment-variable-on-mac-os-x-10-9
3. You have installed a Zookeeper. For direction on installing, see https://formulae.brew.sh/formula/zookeeper

3. Install Hadoop

3.1 Install Hadoop with brew.

$ brew install hadoop.

3.2 Hadoop Configuration changes.

$ vi /usr/local/Cellar/hadoop/<hadoop version>/libexec/etc/hadoop/hadoop-env.sh
export HADOOP_OPTS=”$HADOOP_OPTS -Djava.net.preferIPv4Stack=true -Djava.security.krb5.realm= -Djava.security.krb5.kdc=”
$vi /usr/local/Cellar/hadoop/<hadoop version>/libexec/etc/hadoop/core-site.xml. 
#Add the following properties to the <configuration> block:
 <property>
 <name>hadoop.tmp.dir</name> 
 <value>/usr/local/Cellar/hadoop/hdfs/tmp</value> 
 <description>A base for other temporary directories.</description> 
 </property> 
 <property> 
 <name>fs.default.name</name> 
 <value>hdfs://localhost:9000</value> 
 </property>
$vi /usr/local/Cellar/hadoop/<hadoop version>/libexec/etc/hadoop/mapred-site.xml 
#Add the following property to the <configuration> block:
 <property> 
 <name>mapred.job.tracker</name>
 <value>localhost:9010</value>
 </property>
$vi /usr/local/Cellar/hadoop/<hadoop version>/libexec/etc/hadoop/hdfs-site.xml 
#Add the following property to the <configuration> block:
 <property> 
 <name>dfs.replication</name> 
 <value>1</value> 
 </property>

3.3 Format the HDFS with the following command.

$ hdfs namenode -format

3.4 Start Hadoop with the relevant bash script.

/usr/local/Cellar/hadoop/<hadoop version>/sbin:$ sh start-all.sh

4. Install Hbase

4.1 Install HBase with brew.

 $ brew install hbase

4.2 Hbase Configuration changes.

$ vi /usr/local/Cellar/hbase/<hbase version>/libexec/conf/hbase-site.xml 
#Edit the following property in the <configuration> block. 
#Note: Change port to 2182, if zookeeper is already installed #individually without hbase and hadoop. 
 <property> 
 <name>hbase.rootdir</name> 
 <value>hdfs://localhost:9000/hbase</value> 
 </property>
 <name>hbase.zookeeper.property.clientPort</name>
 <value>2182</value>
 </property>

4.3 Start Hbase with the relevant bash script.

/usr/local/Cellar/hbase/<hbase version>/bin: $ sh start-hbase.sh

4.4 Log can be found in below directory path.

/usr/local/Cellar/hbase/<hbase version>/logs/

5. Verify Installation

5.1 Connect to Hbase shell.

$ hbase shell

5.2 Create Table with name “books” and with column family “info” (book information)

create 'books', 'info';
list; list all tables present

5.3 Let’s insert 3 column qualifies (genres, author, publisher) and the associated values into the first row (row1).

put 'books', 'row1', 'info:genres', 'Accounting'
put 'books', 'row1', 'info:author', 'Martin'
put 'books', 'row1', 'info:publisher', 'BookStand'

5.4 Scan a Table (i.e. Query a Table) that returns all columns in the books table.

scan 'books'

Note: Before starting HBase, start Hadoop. Please find below order of restart of Hbase and Hadoop
a) /usr/local/Cellar/hbase/<hbase version>/bin: $sh stop-hbase.sh
b) /usr/local/Cellar/hbase/<hbase version>/sbin: $sh stop-dfs.sh
c) /usr/local/Cellar/hbase/<hbase version>/sbin: $sh start-dfs.sh
d) /usr/local/Cellar/hbase/<hbase version>/bin: $sh start-hbase.sh

6. Conclusion

In this article, we have covered step by step guide to install HBase on Mac.
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