4. Validate the Installation

Use these steps to validate your installation.

Start HBase and ZooKeeper.
1. Execute this command from the each ZooKeeper node:
```
<login as $ZOOKEEPER_USER>
/usr/lib/zookeeper/bin/zkServer.sh start $ZOOKEEPER_CONF_DIR/zoo.cfg
```
2. Execute this command from the HBase Master node:
```
<login as $HBASE_USER>
/usr/lib/hadoop/bin/hadoop fs -mkdir /apps/hbase
/usr/lib/hadoop/bin/hadoop fs -chown -R hbase /apps/hbase
/usr/lib/hbase/bin/hbase-daemon.sh --config $HBASE_CONF_DIR start master
```
3. Execute this command from each HBase Region Server node:
```
<login as $HBASE_USER>
/usr/lib/hbase/bin/hbase-daemon.sh --config $HBASE_CONF_DIR start regionserver
```
  where:
  - $HBASE_CONF_DIR is the directory to store the HBase configuration files. For example, /etc/hbase/conf.
  - $HBASE_USER is the user owning the HBase services. For example, hbase.
  - $ZOOKEEPER_CONF_DIR is the directory to store the ZooKeeper configuration files. For example, /etc/zookeeper/conf.
  - $ZOOKEEPER_USER is the user owning the ZooKeeper services. For example, zookeeper.

Smoke Test HBase and ZooKeeper.

From a terminal window, enter:

echo "echo status | hbase shell" > /tmp/hbasesmoke.sh 
echo "echo disable\'usertable\' | hbase shell" >> /tmp/hbasesmoke.sh 
echo "echo drop \'usertable\' | hbase shell" >> /tmp/hbasesmoke.sh 
echo "echo create \'usertable\', \'family\' | hbase shell" >> /tmp/hbasesmoke.sh 
echo "echo put \'usertable\', \'row01\',\'family:col01\', \'value1\' | hbase shell" >> /tmp/hbasesmoke.sh 
echo "echo scan\'usertable\' | hbase shell" >> /tmp/hbasesmoke.sh

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