10. Upgrading HBase

To upgrade HBase, you must run the following commands as the hadoop user on both the HBase Master and the RegionServers hosts:

Start the ZooKeeper service:
```
sc start zkServer
```
Check for HFiles in V1 format. HBase 0.96.0 discontinues support for HFileV1, but HFileV1 was a common format prior to HBase 0.94. Run the following command to check if there are HFiles in V1 format:
```
%HBASE_HOME%\bin\hbase.cmd upgrade -check
```
Upgrade HBase.
```
%HBASE_HOME%\bin\hbase.cmd upgrade -execute 
```
You should see a completed Znode upgrade with no errors.
Start all rest HDP services.
```
sc start rest
```
Note
If the Apache Hadoop rest service is disabled, run the following command to enable it:
sc config name=rest start= demand

	Note
If the Apache Hadoop rest service is disabled, run the following command to enable it: sc config name=rest start= demand