Can we avoid restarting of AM when it fails?

[Krishna Kishore Bonagiri]

Hi,

   I am having some failure test cases where my Application Master is
supposed to fail. But when it fails it is again started with <appID>_02 .
Is there a way for me to avoid the second instance of the Application
Master getting started? Is it re-started automatically by the RM after the
first one failed?

Thanks,
Kishore