In Building and Deploying MR2 we presented a brief introduction to MapReduce in Apache Hadoop 0.23 and focused on the steps to set up a single-node cluster. This blog provides developers with architectural details of the new MapReduce design.
Apache Hadoop 0.23 has major improvements over previous releases. Here are a few highlights on the MapReduce front; note that there are also major HDFS improvements, which are out of scope of this post.
The post MapReduce 2.0 in Apache Hadoop 0.23 appeared first on Cloudera Engineering Blog.
