title: hadoop job output files
body: <p>I currently have one hadoop oozie job running. The output files are automatically generated. The expected number of output files is just ONE; however, there are two output files called part-r-00000 and part-r-00001. Sometimes, the first one(part-r-00000) has data, and the second one (part-r-00001) doesn't.  Sometimes, the second one has, and the first one doesn't. Can anyone tell me why? Also, How to set the output file to part-r-00000?</p>