1. Configure core-site.xml for LZO

Using Ambari Web, browse to Services > HDFS > Configs, perform the following steps to configure LZO:

Find the io.compression.codecs property key.
Append to the io.compression.codecs property key, the following value:
```
com.hadoop.compression.lzo.LzoCodec 
```
Expand the Custom core-site.xml section.
Select Add Property.

Add to Custom core-site.xml the following properties:

Property Key	Property Value
io.compression.codec.lzo.class	com.hadoop.compression.lzo.LzoCodec

Stop, then Start the HDFS service.

	Note
	You must Stop, then Start the HDFS service for Ambari to install the necessary LZO packages. Performing a Restart or a Restart All will not start the required package install.