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| <h1>Release 0.4.0-alpha available</h1> |
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| <p>Apache Hadoop Ozone 0.4.0-alpha is released with following features:</p> |
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| <li>Hadoop Delegation Tokens and Block Tokens supported for Ozone.</li> |
| <li>Transparent Data Encryption (TDE) Support - Allows data blocks to be encrypted-at-rest.</li> |
| <li>Kerberos support for Ozone.</li> |
| <li>Certificate Infrastructure for Ozone - Tokens use PKI instead of shared secrets.</li> |
| <li>Datanode to Datanode communication secured via mutual TLS.</li> |
| <li>Ability secure ozone cluster that works with Yarn, Hive, and Spark.</li> |
| <li>Helm/Skaffold support to deploy Ozone clusters on K8s.</li> |
| <li>Support S3 Authentication Mechanisms like - S3 v4 Authentication protocol.</li> |
| <li>S3 Gateway supports Multipart upload.</li> |
| <li>S3A file system is tested and supported.</li> |
| <li>Support for Tracing and Profiling for all Ozone components.</li> |
| <li>Audit Support - including Audit Parser tools.</li> |
| <li>Apache Ranger Support in Ozone.</li> |
| </ul> |
| <p>This is an alpha release and not production ready.</p> |
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| <p><a href="https://hadoop.apache.org/ozone/docs/0.4.0-alpha" class="btn btn-primary">Documentation</a></p> |
| <p><small>2019 May 7 </small></p> |
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