understanding hadoop job submission

[Arindam Choudhury]

Hi,

I am new to hadoop and I am trying to understand hadoop job submission.

We submit the job using:

hadoop jar some.jar name input output

this in turn invoke the RunJar . But in RunJar I can not find any
JobSubmit() or any call to JobClient.

Then, how the job gets submitted to the JobTracker?

-Arindam