Start ZooKeeper
To install and configure HBase and other Hadoop ecosystem components, you must start the ZooKeeper service and the ZKFC:
sudo -E -u zookeeper bash -c "export ZOOCFGDIR=$ZOOKEEPER_CONF_DIR ; export ZOOCFG=zoo.cfg; source $ZOOKEEPER_CONF_DIR/zookeeper-env.sh ; $ZOOKEEPER_HOME/bin/zkServer.sh start"
For example: