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HDFS, mail # dev - MapReduce Integration tests for test FileSystems

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MapReduce Integration tests for test FileSystems
Jay Vyas 2013-04-13, 20:46
MapReduce has some very demanding file operations at at job submission
time, and is an important integration test for any hadoop compliant

How in the hadoop HDFS source tree are mapreduce integration tests
implemented (also I'm interested in how S3, Swift, and other Hadoop
filesystem implementations) implement integration tests... if any clues.  I
haven't seen much in this way in the source code.

To distill my quesiton: how are new HDFS patches tested against the
MapReduce job flow --- ? --- are there some standalone vanilla MapReduce
jobs (Sorting, WordCount, etc..., that run as part of the HDFS build or is
there an HDFS-Mapreduce integration repository ?)
Jay Vyas
Steve Loughran 2013-04-14, 16:31