You might also want to look into MRUnit[1]. It lets you mock the behavior of the framework to test your map and reduce classes in isolation. Can't discover all bugs, but a useful tool and works nicely with IDE debuggers.
-Joey [1] http://incubator.apache.org/mrunit/ On Thu, Sep 15, 2011 at 3:51 PM, Frank Astier <[email protected]> wrote: > Hi - > > I’m using IntelliJ and the WordCount example in Hadoop (which uses > MiniMRCluster). Is it possible to set an IntelliJ debugger breakpoint > straight into the map function of the mapper? - I’ve tried, but so far, the > debugger does not stop at the breakpoint. > > Thanks! > > Frank > -- Joseph Echeverria Cloudera, Inc. 443.305.9434
