-Re: hive 0.11 on MRv1 Vs. YARN
Edward Capriolo 2013-08-20, 17:10
That is such a loaded question. Technically most of the hive API is written
against hadoop 0.20.2. For example, hive does not use
org.apache.hadoop.mapreduce classes it uses org.apache.hadoop.mapred
classes. But the job launching and other optimizations in yarn could mean
something, but mostly it is a question of order of magnitude of things.
Hypothetical example, yarn being able to launch a job 1 second faster may
not matter much if the job runs 10 hours.
On Tue, Aug 20, 2013 at 11:55 AM, Alan Gates <[EMAIL PROTECTED]> wrote:
> Hive 0.11 does run faster on YARN than MR1, but that's due solely to YARN
> being faster than MR1. Hive 0.11 doesn't take any advantage of YARN. Lots
> of work is going on to change that so that future versions of Hive will
> take advantage of YARN (see all the work in the Tez branch for example).
> On Aug 20, 2013, at 2:32 AM, Austin Chungath wrote:
> > Hi,
> > Is hive 0.11 faster on YARN?
> > What am I missing out if I am using hive 0.11 on MRv1 ?
> > Thanks a lot :)
> > - Austin
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