Robert Goodman wrote:
I have some code where I create my own Hadoop job and the use the JobClient to submit the Hadoop job. I noticed that the JobClient class has a killJob() method. I was planning to play around and try to kill a running Hadoop job. Does anybody know status the killJob method? I'm using Hadoop 0.17.2.1 My concern is that it might work in some phases (map, reduce, etc) of a Hadoop job, but not in other phases which is hard to find with simple testing. There may be hidden gotchas that are hard to detect. This concern is really driven by the fact that the jobtracker.jsp in Hadoop doesn't have an option to kill a job. This would be a useful option.
If you get your API operations added as more functional tests to the hadoop codebase, then you can be reasonably confident that nobody is going to break your code. This is the best way of ensuring that your system remains supported -make it part of the test suite
-steve
