New features in release 0.14.0 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 this release, you
should first start HDFS with 'bin/start-dfs.sh -upgrade'.
For release details and downloads, visit:
http://lucene.apache.org/hadoop/releases.html
Thanks to all who contributed to this release!
Doug
