Install ZooKeeper. Execute the following command on all the ZooKeeper nodes:
For RHEL/CentOS:
yum upgrade zookeeper*
For SLES:
zypper remove zookeeper zypper install zookeeper
Note that the command uninstalls HBase. Execute the following command to re-install HBase:
zypper install hbase
![[Important]](../common/images/admon/important.png)
Important When removing and installing packages, rename those files under the
/confdirectory that have.rpmsaveextension to original to retain the customized configs. Or, you can also use the configuration files (under the/confdirectory) that you backed up before upgrading.
Start ZooKeeper. On all the ZooKeeper host machines, execute the following command:
sudo su -l $ZOOKEEPER_USER -c "source /etc/zookeeper/conf/zookeeper-env.sh; export ZOOCFGDIR=/etc/zookeeper/conf; /usr/lib/zookeeper/bin/zkServer.sh start >> $ZOOKEEPER_LOG_DIR/zoo.out"
where
$ZOOKEEPER_USERis the ZooKeeper Service user. For example,zookeeper.$ZOOKEEPER_LOG_DIRis the directory where ZooKeeper server logs are stored. For example,/var/log/zookeeper.
Execute the following commands on the HBase Master and the HBase slave nodes (RegionServers):
For RHEL/CentOS:
yum upgrade hbase
For SLES:
zypper update hbase
Start HBase.
Start HBase Master. On the HBase Master host machine, execute the following command:
sudo su -l $HBASE_USER -c "/usr/lib/hbase/bin/hbase-daemon.sh --config /etc/hbase/conf start master"
Start all RegionServers. On all the RegionServers, execute the following command:
sudo su -l $HBASE_USER -c "/usr/lib/hbase/bin/hbase-daemon.sh --config /etc/hbase/conf start regionserver"
where
$HBASE_USERis the HBase Service user. For example,hbase.
