Running Hbase with Hadoop in standalone mode:
I guess the reader of this blog has already set hadoop in on his system and it is in running mode.
For a simple installation you need to follow these quick step.
1. If you are using latest version of hadoop use the download latest stable release of hbase .
Here I am using hadoop version 1.1.2 already in running state. I have downloaded latest stable release of hbase so as to work with hadoop.
2. Configuring the java home path in hbase-env.sh
export JAVA_HOME=/usr/lib/jvm/java-6-openjdk
3. Configure the region server in hbase-env.sh
export HBASE_REGIONSERVERS=/opt/hbase/conf/regionservers
4. Tell HBase whether it should manage it's own instance of Zookeeper or not.
export HBASE_MANAGES_ZK=true
5. configuration in hbase-site.xml
hbase.rootdir
hdfs://localhost2:9000/hbase
hbase.master
localhost2:60000
dfs.replication
1
hbase.zookeeper.property.clientPort
2182
Property from ZooKeeper's config zoo.cfg.
The port at which the clients will connect.
hbase.zookeeper.quorum
localhost2
Comma separated list of servers in the ZooKeeper Quorum.
For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
By default this is set to localhost for local and pseudo-distributed modes
of operation. For a fully-distributed setup, this should be set to a full
list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in hbase-env.sh
this is the list of servers which we will start/stop ZooKeeper on.
hbase.zookeeper.property.dataDir
/opt/zookeeper
Property from ZooKeeper's config zoo.cfg.
The directory where the snapshot is stored.
hbase.tmp.dir
/opt/hbase/temp
5. change the required setting in host file using command $ sudo gedit /etc/hosts
127.0.0.1 localhost
[your-ip] localhost2
6 change the required setting in host file using command $sudo gedit /etc/hostname
localhost
7. Now copy following jars using below command:
cp ${HADOOP_HOME}/hadoop-core-*.jar ${HBASE_HOME}/lib/
cp ${HADOOP_HOME}/lib/commons-configuration-*.jar ${HBASE_HOME}/lib/
8. now start your hbase using command
$./bin/start-hbase.sh
8. start habse shell using command
$./bin/hbase shell
Note :
if your master server do not start due to safe mode of dfs problem , try this on hadoop command line:
hadoop dfsadmin -safemode leave
For checking if your hbase is running properly, u need to access this URL
http://[your-ip-add]:60010 or localhost:60010
you will get below page:
Congratulations !!, your set up is ready.
If you are still facing any problem , you can leave your comment on this blog.
