Apache Hadoop Changelog
What's new in Apache Hadoop 2.7.0
Jun 29, 2015- IMPORTANT notes
- This release drops support for JDK6 runtime and works with JDK 7+ only.
- 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.
- Hadoop Common
- HADOOP-9629 - Support Windows Azure Storage - Blob as a file system in Hadoop.
- Hadoop HDFS
- HDFS-3107 - Support for file truncate
- HDFS-7584 - Support for quotas per storage type
- HDFS-3689 - Support for files with variable-length blocks
- Hadoop YARN
- YARN-3100 - Make YARN authorization pluggable
- YARN-1492 - Automatic shared, global caching of YARN localized resources (beta)
- Hadoop MapReduce
- MAPREDUCE-5583 - Ability to limit running Map/Reduce tasks of a job
- MAPREDUCE-4815 - Speed up FileOutputCommitter for very large jobs with many output files.
New in Apache Hadoop 2.1.0 Beta (Oct 7, 2013)
- HDFS Snapshots
- Support for running Hadoop on Microsoft Windows
- YARN API stabilization
- Binary Compatibility for MapReduce applications built on hadoop-1.x
- Substantial amount of integration testing with rest of projects in the ecosystem
New in Apache Hadoop 1.2.1 (Oct 7, 2013)
- This release include new developer and user-facing incompatibilities, features, and major improvements.