Releases
Download
Releases may be downloaded from Apache mirrors.
On the mirror, all recent releases are available, but are not guaranteed to be stable. For stable releases, look in the stable directory.
Release Notes
Release notes for Hadoop releases are available in Jira.
News
29 October 2007: release 0.15.0 available
This release contains my improvements, new features, bug fixes and optimizations. See the release notes (above) 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.