Releases Archive

    Release 1.1.0 available

    2012 Oct 13

    This is a beta release for version 1.1.

    This release has approximately 135 enhancements and bug fixes compared to Hadoop-1.0.4, including:

    • Many performance improvements in HDFS, backported from trunk
    • Improvements in Security to use SPNEGO instead of Kerberized SSL for HTTP transactions
    • Lower default minimum heartbeat for task trackers from 3 sec to 300msec to increase job throughput on small clusters
    • Port of Gridmix v3
    • Set MALLOC_ARENA_MAX in hadoop-config.sh to resolve problems with glibc in RHEL-6
    • Splittable bzip2 files
    • Of course it also has the same security fix as release 1.0.4.

    Please see the Hadoop 1.1.0 Release Notes for details.

    Release 1.0.4 available

    2012 Oct 12

    This is a Security Patch release for version 1.0.

    There are four bug fixes and feature enhancements in this minor release:

    • Security issue CVE-2012-4449: Hadoop tokens use a 20-bit secret
    • HADOOP-7154 - set MALLOC_ARENA_MAX in hadoop-config.sh to resolve problems with glibc in RHEL-6
    • HDFS-3652 - FSEditLog failure removes the wrong edit stream when storage dirs have same name
    • MAPREDUCE-4399 - Fix (up to 3x) performance regression in shuffle

    Please see the Hadoop 1.0.4 Release Notes for details.

    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:

    • 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.

    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:

    • 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.

    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:

    • 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.

    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:

    • 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.

    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:

    • 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.