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| <h1>Release 2.7.0 available</h1> |
| <!--- |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
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| http://www.apache.org/licenses/LICENSE-2.0 |
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| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| limitations under the License. See accompanying LICENSE file. |
| --> |
| <p>Apache Hadoop 2.7.0 contains a number of significant enhancements. A few |
| of them are noted below.</p> |
| <ul> |
| <li>IMPORTANT notes</li> |
| <li>This release drops support for JDK6 runtime and works with JDK |
| 7+ only.</li> |
| <li>This release is not yet ready for production use. Critical |
| issues are being ironed out via testing and downstream adoption. |
| Production users should wait for a 2.7.1/2.7.2 release.</li> |
| <li>Hadoop Common</li> |
| <li><a href="https://issues.apache.org/jira/browse/HADOOP-9629">HADOOP-9629</a> - |
| Support Windows Azure Storage - Blob as a file system in Hadoop.</li> |
| <li>Hadoop HDFS</li> |
| <li><a href="https://issues.apache.org/jira/browse/HDFS-3107">HDFS-3107</a> - |
| Support for file truncate</li> |
| <li><a href="https://issues.apache.org/jira/browse/HDFS-7584">HDFS-7584</a> - |
| Support for quotas per storage type</li> |
| <li><a href="https://issues.apache.org/jira/browse/HDFS-3689">HDFS-3689</a> - |
| Support for files with variable-length blocks</li> |
| <li>Hadoop YARN</li> |
| <li><a href="https://issues.apache.org/jira/browse/YARN-3100">YARN-3100</a> - |
| Make YARN authorization pluggable</li> |
| <li><a href="https://issues.apache.org/jira/browse/YARN-1492">YARN-1492</a> - |
| Automatic shared, global caching of YARN localized resources |
| (beta)</li> |
| <li>Hadoop MapReduce</li> |
| <li><a href="https://issues.apache.org/jira/browse/MAPREDUCE-5583">MAPREDUCE-5583</a> - |
| Ability to limit running Map/Reduce tasks of a job</li> |
| <li><a href="https://issues.apache.org/jira/browse/MAPREDUCE-4815">MAPREDUCE-4815</a> - |
| Speed up FileOutputCommitter for very large jobs with many |
| output files.</li> |
| </ul> |
| <p>Please see the <a href="https://hadoop.apache.org/docs/r2.7.0/hadoop-project-dist/hadoop-common/releasenotes.html">Hadoop 2.7.0 Release |
| Notes</a> |
| for details.</p> |
| |
| <small>2015 Apr 21 </small> |
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