Release 2.7.0 available
Apache Hadoop 2.7.0 contains a number of significant enhancements. A few
of them are noted below.
- 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.
Please see the Hadoop 2.7.0 Release
Notes
for details.
2015 Apr 21