There are two major release lines: 1.x and 2.x. 1.x is deemed stable and 2.x is considered alpha quality.
0.23.* is the last of 0.2X line. 0.23.* is used mostly by Yahoo! to stabilize the last code minus some features present in 2.x like some HDFS HA work, PB use in RPC layer etc. Thanks, +Vinod On Oct 31, 2012, at 10:25 AM, Pedro Sá da Costa wrote: > I've noticed that Hadoop MapReduce 1.0.4 was released in 12 October 2012, and > Hadoop 0.23.4 was released in 15 October 2012. I thought that with Hadoop > 1.0, the Hadoop 0.2X had become discontinued. If I want to start to use > Hadoop MapReduce, which version should I use? > > > What's the difference between Hadoop MapReduce 0.2X and Hadoop MapReduce 1.0? > > > -- > Best regards, >
