Ozone is designed to work with HDFS. So it is easy to deploy ozone in an existing HDFS cluster.
The container manager part of Ozone can run inside DataNodes as a pluggable module or as a standalone component. This document describe how can it be started as a HDFS datanode plugin.
To activate ozone you should define the service plugin implementation class.
<property> <name>dfs.datanode.plugins</name> <value>org.apache.hadoop.ozone.HddsDatanodeService</value> </property>
You also need to add the jar file under path /opt/ozone/share/ozone/lib/ to the classpath:
To start ozone with HDFS you should start the the following components:
Please check the log of the datanode whether the HDDS/Ozone plugin is started or not. Log of datanode should contain something like this:
2018-09-17 16:19:24 INFO HddsDatanodeService:158 - Started plug-in org.apache.hadoop.ozone.web.OzoneHddsDatanodeService@6f94fb9d