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| <li><a href="https://hadoop.apache.org">Apache Hadoop™</a></li> |
| <li><a href="/">Ozone™</a></li> |
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| <h2>What is Apache Hadoop Ozone?</h2> |
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| Ozone is a new subproject of Apache Hadoop. It provides an |
| object store semantic for Hadoop.</p> |
| <p class="lead">It uses Hadoop Distributed Data Storage (HDDS) for storage layer. HDDS is |
| another new subporoject of Apache Hadoop. |
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| <h4><span class="glyphicon glyphicon-sort-by-attributes" aria-hidden="true"></span> Scalable</h4> |
| <p> |
| Ozone is designed to scale to tens of billions of files and |
| blocks and, in the future, even more. |
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| <p> |
| Small files or huge number of datanodes are no longer a limitation. |
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| Consistent</h4> |
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| Storage Layer uses RAFT protocol for consistentency. |
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| <h4><span class="glyphicon glyphicon-cloud" aria-hidden="true"></span>Cloud-native</h4> |
| <p>Hadoop Ozone is designed to work well in containerized environments like YARN and Kubernetes. |
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| <h2>Question and Answers</h2> |
| <h3>Where can I download it?</h3> |
| <p>Apache Hadoop Ozone is not yet released. It's being actively developed on |
| the trunk branch of Apache Hadoop. It will be released independently from |
| the main Hadoop release.</p> |
| <h3>How can I contribute</h3> |
| <p>The contribution process is the same as is for any other |
| <a href="https://wiki.apache.org/hadoop/HowToContribute"> |
| Hadoop subproject.</a></p> |
| <h3>Does it mean a new Hadoop server component?</h3> |
| <p>Both Ozone and HDDS requires one additional master component - |
| Ozone Manager and Storage Container Manger, respectively. The |
| worker parts of Ozone/HDDS can be started as a HDFS |
| Datanode plugin. |
| </p> |
| <h3>How can I try it out?</h3> |
| <p>There is a |
| <a href="https://www.katacoda.com/elek/scenarios/ozone101">katacoda</a> |
| which can be used to try out Ozone. Please note that this is for |
| demostration and is not released by Apache.</p> |
| <p>For the Apache version, you can download and build the latest version |
| from <a href="https://github.com/apache/hadoop">trunk</a></p> |
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