They're in the same JVM, and I believe in the same thread. - Aaron On Tue, Apr 14, 2009 at 10:25 AM, Saptarshi Guha <[email protected]>wrote:
> Hello, > Suppose I have a Hadoop job and have set my combiner to the Reducer class. > Does the map function and the combiner function run in the same JVM in > different threads? or in different JVMs? > I ask because I have to load a native library and if they are in the same > JVM then the native library is loaded once and I have to take precautions. > > Thank you > Saptarshi Guha >
