Hi all, We are pleased to announce the release of Apache Hadoop 2.9.0. This is the first release of Hadoop 2.9 line and will be the starting release for Apache Hadoop 2.9.x line - it includes 30 New Features with 500+ subtasks, 407 Improvements, 790 Bug fixes new fixed issues since 2.8.2.
Please refer to the Apache Hadoop Release page [1] for download instructions. Major features include: * Application Timeline Service v2 [2] * YARN Federation [3] * HDFS Router based Federation [4] * Opportunistic Containers [5] * YARN Web UI v2 [6] * API for Scheduler Queue (Re-)configuration for CapacityScheduler [7] * Container Update for CapacityScheduler [8] * Hadoop Resource Estimator [9] More details on all the features, subtasks and bug fixes can be found in the change log [10] and release notes [11]. Although this release has been tested on fairly large clusters, production users can wait for a subsequent point release which will contain fixes from further stabilization and downstream adoption. Thanks to all the many contributors who helped with this release! Cheers Subru and Arun [1]: http://hadoop.apache.org/releases.html [2]: http://hadoop.apache.org/docs/r2.9.0/hadoop-yarn/hadoop-yarn-site/TimelineServiceV2.html [3]: http://hadoop.apache.org/docs/r2.9.0/hadoop-yarn/hadoop-yarn-site/Federation.html [4]: http://hadoop.apache.org/docs/r2.9.0/hadoop-project-dist/hadoop-hdfs/HDFSRouterFederation.html [5]: http://hadoop.apache.org/docs/r2.9.0/hadoop-yarn/hadoop-yarn-site/OpportunisticContainers.html [6]: http://hadoop.apache.org/docs/r2.9.0/hadoop-yarn/hadoop-yarn-site/YarnUI2.html [7]: http://hadoop.apache.org/docs/r2.9.0/hadoop-yarn/hadoop-yarn-site/CapacityScheduler.html#Changing_queue_configuration_via_API [8]: http://hadoop.apache.org/docs/r2.9.0/hadoop-yarn/hadoop-yarn-site/CapacityScheduler.html#Updating_a_Container_Experimental_-_API_may_change_in_the_future [9]: http://hadoop.apache.org/docs/r2.9.0/hadoop-resourceestimator/ResourceEstimator.html [10]: http://hadoop.apache.org/docs/r2.9.0/hadoop-project-dist/hadoop-common/release/2.9.0/CHANGES.2.9.0.html [11]: http://hadoop.apache.org/docs/r2.9.0/hadoop-project-dist/hadoop-common/release/2.9.0/RELEASENOTES.2.9.0.html
