Third parties may distribute products that include Apache Hadoop and derived works, under the Apache License. + Some of these are listed on the Distributions wiki page.

+ + + +

News

+ +

26 July, 2012: Release 2.0.1-alpha available

This release contains important security fixes over hadoop-2.0.0-alpha. +

Please see the + Hadoop 2.0.1-alpha Release Notes for details. +

+ +

23 May, 2012: Release 2.0.0-alpha available

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: +

HDFS HA for NameNode (manual failover)
YARN aka NextGen MapReduce
HDFS Federation
Performance
Wire-compatibility for both HDFS and YARN/MapReduce (using protobufs)

+ +

Please see the + Hadoop 2.0.0-alpha Release Notes for details. +

+ +

16 May, 2012: Release 1.0.3 available

This is a bug fix release for version 1.0. +

Bug fixes and feature enhancements in this minor release include: +

4 patches in support of non-Oracle JDKs
several patches to clean up error handling and log messages
various production issue fixes

+ +

Please see the + Hadoop 1.0.3 Release Notes for details. +

+ +

3 Apr, 2012: Release 1.0.2 available

This is a bug fix release for version 1.0. +

Bug fixes and feature enhancements in this minor release include: +

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."

+ +

Please see the + Hadoop 1.0.2 Release Notes for details. +

+ +

10 Mar, 2012: Release 1.0.1 available

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: +

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

+ +

Please see the + Hadoop 1.0.1 Release Notes for details. +

+ +

27 Feb, 2012: release 0.23.1 available

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: +

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

+ + +

See the + Hadoop 0.23.1 Release Notes for details. +

+ +

27 December, 2011: release 1.0.0 available

After six years of gestation, Hadoop reaches 1.0.0! + This release is from the 0.20-security code line, and includes + support for: +

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

+ +

Please see the complete + Hadoop 1.0.0 Release Notes for details. +

+ +

10 December, 2011: release 0.22.0 available

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.

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.

Hadoop 0.22.0 features

HBase support with hflush and hsync.
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.

+ +

11 Nov, 2011: release 0.23.0 available

This is the alpha version of the hadoop-0.23 major + release. This is the first release we've made off + Apache Hadoop trunk in a long while. This release is + alpha-quality and not yet ready for serious use. +

hadoop-0.23 contains several major advances: +

HDFS Federation
NextGen MapReduce (YARN)

+ + It also has several major performance improvements to + both HDFS and MapReduce. +

See the + Hadoop 0.23.0 Release Notes for details. +

+ +

17 Oct, 2011: release 0.20.205.0 available

This release contains improvements, new features, bug + fixes and optimizations. This release includes rpms and + debs, all duly checksummed and securely signed.

See the Hadoop 0.20.205.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release.

Notes:

This release includes a merge of append/hsynch/hflush capabilities from 0.20-append branch, to support HBase in secure mode.
This release includes the new webhdfs file system, but webhdfs write calls currently fail in secure mode.

+ +

5 Sep, 2011: release 0.20.204.0 available

This release contains improvements, new features, bug + fixes and optimizations. This release includes rpms and + debs for the first time.

See the Hadoop 0.20.204.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release.

Notes:

The RPMs don't work with security turned on. (HADOOP-7599)
The NameNode's edit log needs to be merged into the image + via

put the NameNode into safe mode
run dfsadmin savenamespace command
perform a normal upgrade

+ +

11 May, 2011: release 0.20.203.0 available

This release contains many improvements, new features, bug + fixes and optimizations. It is stable and has been deployed + in large (4,500 machine) production clusters.

See the Hadoop 0.20.203.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

23 August, 2010: release 0.21.0 available

This release contains many improvements, new features, bug + fixes and optimizations. It has not undergone testing at scale and should not be considered stable or suitable for production. + This release is being classified as a minor release, which means that it should be API compatible with 0.20.2.

See the Hadoop 0.21.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

26 February, 2010: release 0.20.2 available

This release contains several critical bug fixes.

See the Hadoop 0.20.2 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

14 September, 2009: release 0.20.1 available

This release contains several critical bug fixes.

See the Hadoop 0.20.1 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

23 July, 2009: release 0.19.2 available

This release contains several critical bug fixes.

See the Hadoop 0.19.2 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

22 April, 2009: release 0.20.0 available

This release contains many improvements, new features, bug + fixes and optimizations.

See the Hadoop 0.20.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

24 February, 2009: release 0.19.1 available

This release contains many critical bug fixes, including some data loss issues. + The release also introduces an incompatible change by disabling the + file append API (HADOOP-5224) + until it can be stabilized.

See the Hadoop 0.19.1 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

29 January, 2009: release 0.18.3 available

This release contains many critical bug fixes.

See the Hadoop 0.18.3 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

21 November, 2008: release 0.19.0 available

This release contains many improvements, new features, bug + fixes and optimizations.

See the Hadoop 0.19.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

3 November, 2008: release 0.18.2 available

This release contains several critical bug fixes.

See the Hadoop 0.18.2 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

17 September, 2008: release 0.18.1 available

This release contains several critical bug fixes.

See the Hadoop 0.18.1 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

22 August, 2008: release 0.18.0 available

This release contains many improvements, new features, bug + fixes and optimizations.

See the Hadoop 0.18.0 Release Notes for details. + Alternatively, you can look at the complete change log for this release or the + + Jira issue log for all releases.

+ +

19 August, 2008: release 0.17.2 available

This release contains several critical bug fixes.

See the Hadoop 0.17.2 Notes for details.

+ +

23 June, 2008: release 0.17.1 available

This release contains many improvements, new features, bug + fixes and optimizations.

See the Hadoop 0.17.1 Notes for details.

+ +

20 May, 2008: release 0.17.0 available

This release contains many improvements, new features, bug + fixes and optimizations.

See the Hadoop 0.17.0 Release Notes for details.

+ +

5 May, 2008: release 0.16.4 available

This release fixes 4 critical bugs in release 0.16.3.

+ +

16 April, 2008: release 0.16.3 available

This release fixes critical bugs in release 0.16.2.

+ +

2 April, 2008: release 0.16.2 available

This release fixes critical bugs in release 0.16.1.

Note

HBase has been removed from this release. HBase releases are now maintained at + http://hadoop.apache.org/hbase/ +

+ +

13 March, 2008: release 0.16.1 available

This release fixes critical bugs in release 0.16.0.

Note

HBase releases are now maintained at + http://hadoop.apache.org/hbase/ +

+ +

7 February, 2008: release 0.16.0 available

This release contains many improvements, new features, bug + fixes and optimizations.

See the release notes (above) for details.

Note

When upgrading an existing HDFS filesystem to a 0.16.x + release from an earlier release, you should first start HDFS + with 'bin/start-dfs.sh -upgrade'. See the Hadoop + Upgrade page for details.

+ +

18 January, 2008: release 0.15.3 available

This release fixes critical bugs in release 0.15.3.

+ +

2 January, 2008: release 0.15.2 available

This release fixes critical bugs in release 0.15.1.

+ +

27 November, 2007: release 0.15.1 available

This release fixes critical bugs in release 0.15.0.

+ +

26 November, 2007: release 0.14.4 available

This release fixes critical bugs in release 0.14.3.

+ +

29 October 2007: release 0.15.0 available

This release contains many improvements, new features, bug + fixes and optimizations.

Notably, this contains the first working version of HBase.

See the release notes (above) for details.

Note

When upgrading an existing HDFS filesystem to a 0.15.x + release from an earlier release, you should first start HDFS + with 'bin/start-dfs.sh -upgrade'. See the Hadoop + Upgrade page for details.

+ +

19 October, 2007: release 0.14.3 available

This release fixes critical bugs in release 0.14.2.

+ +

4 September, 2007: release 0.14.1 available

New features in release 0.14 include:

Better checksums in HDFS. Checksums are no longer + stored in parallel HDFS files, but are stored directly by + datanodes alongside blocks. This is more efficient for the + namenode and also improves data integrity.
Pipes: A C++ API for MapReduce
Eclipse Plugin, including HDFS browsing, job + monitoring, etc.
File modification times in HDFS.

There are many other improvements, bug fixes, optimizations + and new features. Performance and reliability are better than + ever.

Note

When upgrading an existing HDFS filesystem to a 0.14.x + release from a 0.13.x or earlier release, you should first + start HDFS with 'bin/start-dfs.sh -upgrade'. See the Hadoop + 0.14 Upgrade page for details.

+ + +

+ +

Hadoop Releases

Download

News

26 July, 2012: Release 2.0.1-alpha available

23 May, 2012: Release 2.0.0-alpha available

16 May, 2012: Release 1.0.3 available

3 Apr, 2012: Release 1.0.2 available

10 Mar, 2012: Release 1.0.1 available

27 Feb, 2012: release 0.23.1 available

27 December, 2011: release 1.0.0 available

10 December, 2011: release 0.22.0 available

11 Nov, 2011: release 0.23.0 available

17 Oct, 2011: release 0.20.205.0 available

5 Sep, 2011: release 0.20.204.0 available

11 May, 2011: release 0.20.203.0 available

23 August, 2010: release 0.21.0 available

26 February, 2010: release 0.20.2 available

14 September, 2009: release 0.20.1 available

23 July, 2009: release 0.19.2 available

22 April, 2009: release 0.20.0 available

24 February, 2009: release 0.19.1 available

29 January, 2009: release 0.18.3 available

21 November, 2008: release 0.19.0 available

3 November, 2008: release 0.18.2 available

17 September, 2008: release 0.18.1 available

22 August, 2008: release 0.18.0 available

19 August, 2008: release 0.17.2 available

23 June, 2008: release 0.17.1 available

20 May, 2008: release 0.17.0 available

5 May, 2008: release 0.16.4 available

16 April, 2008: release 0.16.3 available

2 April, 2008: release 0.16.2 available

13 March, 2008: release 0.16.1 available

7 February, 2008: release 0.16.0 available

18 January, 2008: release 0.15.3 available

2 January, 2008: release 0.15.2 available

27 November, 2007: release 0.15.1 available

26 November, 2007: release 0.14.4 available

29 October 2007: release 0.15.0 available

19 October, 2007: release 0.14.3 available

4 September, 2007: release 0.14.1 available

Hadoop Version Control System

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