HBase Pseudo Distributed Mode Installation


HBase Pseudo Distributed Mode Installation

Before proceeding with HBase, configure Hadoop and HDFS on your local system or on a remote system and make sure they are running.

A pseudo-distributed mode is simply a distributed mode run on a single host. Use this configuration testing and prototyping on HBase. Do not use this configuration for production nor for evaluating HBase performance.

HBase Installation Steps

Step 1 - Installing java 7. Open a terminal (CTRL + ALT + T) and type the following sudo command.




$ sudo apt-get install openjdk-7-jdk

Verify Installation




$ java -version

Step 2 - Edit /etc/hosts file.




$ sudo gedit /etc/hosts

/etc/hosts file. Add machine IP address and hostname. Save and close.




127.0.0.1	localhost
127.0.0.1	nagaraju


Step 3 - Creating /usr/local/hbase directory.




$ sudo mkdir /usr/local/hbase

Step 4 - Change the ownership and permissions of the directory /usr/local/hbase. Here 'hduser' is an Ubuntu username.




$ sudo chown -R hduser /usr/local/hbase
$ sudo chmod -R 755 /usr/local/hbase

Step 5 - Creating /var/hbase/pids directory.




$ sudo mkdir /var/hbase/pids

Step 6 - Change the ownership and permissions of the directory /var/hbase/pids. Here 'hduser' is an Ubuntu username.




$ sudo chown -R hduser /var/hbase/pids
$ sudo chmod -R 755 /var/hbase/pids

Step 7 - Change the directory to /home/hduser/Desktop , In my case the downloaded hbase-1.2.3-bin.tar.gz file is in /home/hduser/Desktop folder. For you it might be in /downloads folder check it.




$ cd /home/hduser/Desktop/

Step 8 - Untar the hbase-1.2.3-bin.tar.gz file.




$ tar xzf hbase-1.2.3-bin.tar.gz

Step 9 - Move the contents of hbase-1.2.3 folder to /usr/local/hbase




$ mv hbase-1.2.3/* /usr/local/hbase

Step 10 - Edit $HOME/.bashrc file by adding the java and hadoop path.




$ sudo gedit $HOME/.bashrc

$HOME/.bashrc file. Add the following lines




export HBASE_HOME=/usr/local/hbase
PATH=$PATH:$HBASE_HOME/bin
export CLASSPATH=$CLASSPATH:/usr/local/hbase/lib/*


Step 11 - Reload your changed $HOME/.bashrc settings




$ source $HOME/.bashrc

Step 12 - Change the directory to /usr/local/hbase/conf




$ cd /usr/local/hbase/conf

Step 13 - Edit hbase-env.sh file.




$ gedit hbase-env.sh

Step 14 - Add the below lines to hadoop-env.sh file. Save and Close.




export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64
export HBASE_REGIONSERVERS=exact location of /conf/regionservers
export HBASE_MANAGES_ZK=true
export HBASE_PID_DIR=/var/hbase/pids


Step 15 - Edit hbase-site.xml file.




$ gedit hbase-site.xml

Add the below lines to hbase-site.xml file. Save and Close.




hbase.rootdir
hdfs://localhost:9000/user/hduser/hbase



hbase.cluster.distributed
true



hbase.zookeeper.quorum
localhost


 
hbase.master 
localhost:60010 



hbase.zookeeper.property.clientPort
2181



hbase.zookeeper.property.dataDir
hdfs://localhost:9000/user/hduser/zookeeper



Step 16 - Make a new /user/hduser/hbase directory in HDFS.




$ hdfs dfs -mkdir /user/hduser/hbase

Step 17 - Make a new /user/hduser/zookeeper directory in HDFS.




$ hdfs dfs -mkdir /user/hduser/zookeeper

Step 18 - Change the directory to /usr/local/hbase/bin




$ cd /usr/local/hbase/bin

Step 19 - Start all hbase daemons.




$ ./start-hbase.sh

Step 20 - The JPS (Java Virtual Machine Process Status Tool) tool is limited to reporting information on JVMs for which it has the access permissions.




$ jps

Once the HBase is up and running check the web-ui of the components as described below




http://localhost:16010

Step 21 - Change the directory to /usr/local/hbase




$ cd /usr/local/hbase

Step 22 - HBase creates its directory in HDFS. To see the created directory, browse to Hadoop bin and type the following command.




$ ./bin/hbase dfs -ls /user/hduser/hbase

Step 23 - To start up the initial HBase cluster.




$ ./start-hbase.sh

Step 24 - To start up an extra backup master(s) on the same server run. the '1' means use ports 60001 & 60011, and this backup master's logfile will be at logs/hbase--1-master-.log. You can start up to 9 backup masters (10 total).




$ ./bin/local-master-backup.sh start 1 2

Step 25 - To start up more regionservers. where '1' means use ports 60201 & 60301 and its logfile will be at logs/hbase--1-regionserver-$ {HOSTNAME}.log. This supports up to 99 extra regionservers (100 total).




$ ./bin/./local-regionservers.sh start 1

To add 4 more regionservers in addition to the one you just started by running.




$ ./bin/./local-regionservers.sh start 2 3 4

To Enter into HBase Shell




$ hbase shell

Step 26 - To stop an individual regionserver




$ ./bin/./local-regionservers.sh stop 1

Step 27 - To stop an individual backup master server




$ ./bin/local-master-backup.sh stop 1

OR

Step 28 - To stop all HBase daemons.




$ ./bin/stop-hbase.sh

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