Releases Archive
- HDFS HA for NameNode (manual failover)
- YARN aka NextGen MapReduce
- HDFS Federation
- Performance
- Wire-compatibility for both HDFS and YARN/MapReduce (using protobufs)
- 4 patches in support of non-Oracle JDKs
- several patches to clean up error handling and log messages
- various production issue fixes
- Snappy compressor/decompressor is available
- Occassional deadlock in metrics serving thread fixed
- 64-bit secure datanodes failed to start, now fixed
- Changed package names for 64-bit rpm/debs to use “.x86_64.” instead of “.amd64.”
- Added hadoop-client and hadoop-minicluster artifacts for ease of client install and testing
- Support run-as-user in non-secure mode
- Better compatibility with Ganglia, HBase, and Sqoop
- Lots of bug fixes and improvements in both HDFS and MapReduce
- Major performance work to make this release either match or exceed performance of Hadoop-1 in most aspects of both HDFS and MapReduce.
- Several downstream projects like HBase, Pig, Oozie, Hive etc. are better integrated with this release
- security
- HBase (append/hsynch/hflush, and security)
- webhdfs (with full support for security)
- performance enhanced access to local files for HBase
- other performance enhancements, bug fixes, and features
- Security.
- Latest optimizations of the MapReduce framework introduced in the Hadoop 0.20.security line of releases.
- Disk-fail-in-place.
- JMX-based metrics v2.
- HBase support with
hflush
andhsync
. - New implementation of file append.
- Symbolic links.
- BackupNode and CheckpointNode.
- Hierarchical job queues.
- Job limits per queue/pool.
- Dynamically stop/start job queues.
- Andvances in new mapreduce API: Input/Output formats, ChainMapper/Reducer.
- TaskTracker blacklisting.
- DistributedCache sharing.
Release 2.0.2-alpha available
2012 Oct 9
This is the second (alpha) version in the hadoop-2.x series.
This delivers significant enhancements to HDFS HA. Also it has a significantly more stable version of YARN which, at the time of release, has already been deployed on a 2000 node cluster.
Please see the Hadoop 2.0.2-alpha Release Notes for details.
Release 0.23.3 available
2012 Sep 17
This release contains YARN and MRv2 but does not have Name Node High Avalability
Please see the Hadoop 0.23.3 Release Notes for details.
Release 2.0.1-alpha available
2012 Jul 26
This release contains important security fixes over hadoop-2.0.0-alpha.
Please see the Hadoop 2.0.1-alpha Release Notes for details.
Release 2.0.0-alpha available
2012 May 23
This is the first (alpha) version in the hadoop-2.x series.
This delivers significant major features over the currently stable hadoop-1.x series including:
Please see the Hadoop 2.0.0-alpha Release Notes for details.
Release 1.0.3 available
2012 May 16
This is a bug fix release for version 1.0.
Bug fixes and feature enhancements in this minor release include:
Please see the Hadoop 1.0.3 Release Notes for details.
Release 1.0.2 available
2012 Apr 3
This is a bug fix release for version 1.0.
Bug fixes and feature enhancements in this minor release include:
Please see the Hadoop 1.0.2 Release Notes for details.
Release 1.0.1 available
2012 Mar 10
This is a bug fix release for version 1.0. This release is now considered stable, replacing the long-standing 0.20.203.
Bug fixes in this minor release include:
Please see the Hadoop 1.0.1 Release Notes for details.
release 0.23.1 available
2012 Feb 27
This is the second alpha version of the hadoop-0.23 major release after the first alpha 0.23.0. This release has significant improvements compared to 0.23.0 but should still be considered as alpha-quality and not for production use.
hadoop-0.23.1 contains several major advances from 0.23.0:
See the Hadoop 0.23.1 Release Notes for details.
release 1.0.0 available
2011 Dec 27
After six years of gestation, Hadoop reaches 1.0.0! This release is from the 0.20-security code line, and includes support for:
Please see the complete Hadoop 1.0.0 Release Notes for details.
release 0.22.0 available
2011 Dec 10
This release contains many bug fixes and optimizations compared to its predecessor 0.21.0. See the Hadoop 0.22.0 Release Notes for details. Alternatively, you can look at the complete change log for this release
Notes:
The following features are not supported in Hadoop 0.22.0.
Hadoop 0.22.0 features