Hi, Alejandro, 1. if the "1 map task " is produced by LaunchMapper ? 2. I have kowned that mapreduceActionExecutor extends javaActionExecutor, so mapreduceActionExecutor will also trigger a launcher job of 1 map task , meanwhile the mapreduceMain will also trigger a map and reduce task , so why there are two times trigger ?
Best regards! 2013/1/29 Alejandro Abdelnur <[email protected]> > java actions (and mapreduce pig hive sqoop distcp) all trigger a launcher > job of 1 map task where the user action runs. in the case of the java > action, in this laincher job the java main class will be run. > thx > > Alejandro > (phone typing) > > On Jan 28, 2013, at 1:21 AM, jinwei zhu <[email protected]> wrote: > > > Hi, community, > > I find that in the method submitLauncher of JavaActionExecutor.java > > there is a call to JobClient , it seems to submit a job, but what is the > > purpose of submitting the job? > > > > > > Best regards! >
