Hi Mohit ,

This is The number of failed tasks in specified job after which the job will not run on the task tracker. The job's tasks will no longer be assigned to the task tracker. However, If the same task failed more than 4 times , The job will fail regardless.

Hope this helps.

Thanks
-Abdelrahman

On Mar 6, 2013, at 9:51 PM, Mohit Anchlia <[EMAIL PROTECTED]> wrote:

> I am wondering what the correct behaviour is of this parameter? If it's set to 4 does it mean job should fail if a job has more than 4 failures?
>

No, its the number of task failures in  a job after which that
particular tasktracker can be blacklisted *for that job*! Note that it
can take tasks from other jobs!

On Thu, Mar 7, 2013 at 11:21 AM, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
> I am wondering what the correct behaviour is of this parameter? If it's set
> to 4 does it mean job should fail if a job has more than 4 failures?

Thanks this is very helpful.

On Wed, Mar 6, 2013 at 10:03 PM, bharath vissapragada <
[EMAIL PROTECTED]> wrote:

> No, its the number of task failures in  a job after which that
> particular tasktracker can be blacklisted *for that job*! Note that it
> can take tasks from other jobs!
>
> On Thu, Mar 7, 2013 at 11:21 AM, Mohit Anchlia <[EMAIL PROTECTED]>
> wrote:
>  > I am wondering what the correct behaviour is of this parameter? If
> it's set
> > to 4 does it mean job should fail if a job has more than 4 failures?
>