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Posted to user@hadoop.apache.org by Shashank Gupta <sh...@gmail.com> on 2013/10/28 18:32:05 UTC
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
A "little" late to the party but I have a concluding question :-
What about Setup and Cleanup functions? Will each thread invoke those
functions too?
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by unmesha sreeveni <un...@gmail.com>.
For each task the setup and cleanup runs.
On Tue, Oct 29, 2013 at 5:42 PM, Harsh J <ha...@cloudera.com> wrote:
> The setup and cleanup threads are run only once per task attempt.
>
> On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
> <sh...@gmail.com> wrote:
> > A "little" late to the party but I have a concluding question :-
> >
> > What about Setup and Cleanup functions? Will each thread invoke those
> > functions too?
> >
>
>
>
> --
> Harsh J
>
--
*Thanks & Regards*
*
*
Unmesha Sreeveni U.B*
*
*Junior Developer
*
*Amrita Center For Cyber Security
*
*
Amritapuri.
www.amrita.edu/cyber/
*
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by unmesha sreeveni <un...@gmail.com>.
For each task the setup and cleanup runs.
On Tue, Oct 29, 2013 at 5:42 PM, Harsh J <ha...@cloudera.com> wrote:
> The setup and cleanup threads are run only once per task attempt.
>
> On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
> <sh...@gmail.com> wrote:
> > A "little" late to the party but I have a concluding question :-
> >
> > What about Setup and Cleanup functions? Will each thread invoke those
> > functions too?
> >
>
>
>
> --
> Harsh J
>
--
*Thanks & Regards*
*
*
Unmesha Sreeveni U.B*
*
*Junior Developer
*
*Amrita Center For Cyber Security
*
*
Amritapuri.
www.amrita.edu/cyber/
*
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by unmesha sreeveni <un...@gmail.com>.
For each task the setup and cleanup runs.
On Tue, Oct 29, 2013 at 5:42 PM, Harsh J <ha...@cloudera.com> wrote:
> The setup and cleanup threads are run only once per task attempt.
>
> On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
> <sh...@gmail.com> wrote:
> > A "little" late to the party but I have a concluding question :-
> >
> > What about Setup and Cleanup functions? Will each thread invoke those
> > functions too?
> >
>
>
>
> --
> Harsh J
>
--
*Thanks & Regards*
*
*
Unmesha Sreeveni U.B*
*
*Junior Developer
*
*Amrita Center For Cyber Security
*
*
Amritapuri.
www.amrita.edu/cyber/
*
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by unmesha sreeveni <un...@gmail.com>.
For each task the setup and cleanup runs.
On Tue, Oct 29, 2013 at 5:42 PM, Harsh J <ha...@cloudera.com> wrote:
> The setup and cleanup threads are run only once per task attempt.
>
> On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
> <sh...@gmail.com> wrote:
> > A "little" late to the party but I have a concluding question :-
> >
> > What about Setup and Cleanup functions? Will each thread invoke those
> > functions too?
> >
>
>
>
> --
> Harsh J
>
--
*Thanks & Regards*
*
*
Unmesha Sreeveni U.B*
*
*Junior Developer
*
*Amrita Center For Cyber Security
*
*
Amritapuri.
www.amrita.edu/cyber/
*
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by Harsh J <ha...@cloudera.com>.
The setup and cleanup threads are run only once per task attempt.
On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
<sh...@gmail.com> wrote:
> A "little" late to the party but I have a concluding question :-
>
> What about Setup and Cleanup functions? Will each thread invoke those
> functions too?
>
--
Harsh J
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by Harsh J <ha...@cloudera.com>.
The setup and cleanup threads are run only once per task attempt.
On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
<sh...@gmail.com> wrote:
> A "little" late to the party but I have a concluding question :-
>
> What about Setup and Cleanup functions? Will each thread invoke those
> functions too?
>
--
Harsh J
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by Harsh J <ha...@cloudera.com>.
The setup and cleanup threads are run only once per task attempt.
On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
<sh...@gmail.com> wrote:
> A "little" late to the party but I have a concluding question :-
>
> What about Setup and Cleanup functions? Will each thread invoke those
> functions too?
>
--
Harsh J
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum
Posted by Harsh J <ha...@cloudera.com>.
The setup and cleanup threads are run only once per task attempt.
On Mon, Oct 28, 2013 at 11:02 PM, Shashank Gupta
<sh...@gmail.com> wrote:
> A "little" late to the party but I have a concluding question :-
>
> What about Setup and Cleanup functions? Will each thread invoke those
> functions too?
>
--
Harsh J