when you run select * from table .. it does not launch a mapreduce job,
where are when you put some condition, it does need to process the data so
it launches a mapreduce job
now when you start this query, go to your jobtracker page and see how many
jobs are running. Is it able to start your job? if not why ?
that will tell you why its stuck
On Tue, Aug 6, 2013 at 3:22 PM, Manickam P <[EMAIL PROTECTED]> wrote:
> If i run a hive query like "select * from table_name limit 10" it is
> If i run query like "select column_name from table_name limit 10" it
> *Total MapReduce jobs = 1*
> *Launching Job 1 out of 1*
> *Number of reduce tasks is set to 0 since there's no reduce operator*
> It just prints the above after that nothing happening in the hive shell.
> Can you pls help me on this.
> Manickam P