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Posted to dev@hive.apache.org by Lefty Leverenz <le...@gmail.com> on 2014/07/18 21:57:02 UTC

Newbie question from an oldbie -- "local"

How is local mode (for execution of queries) related to local metastore, or
are they unrelated?

I was just linking wikidocs for these topics to each other, then realized
they aren't identical.

   - Hive, Map-Reduce and Local-Mode
   <https://cwiki.apache.org/confluence/display/Hive/GettingStarted#GettingStarted-Hive,Map-ReduceandLocal-Mode>
   - Local Metastore
   <https://cwiki.apache.org/confluence/display/Hive/AdminManual+MetastoreAdmin#AdminManualMetastoreAdmin-LocalMetastore>

-- Lefty

Re: Newbie question from an oldbie -- "local"

Posted by Lefty Leverenz <le...@gmail.com>.

Thanks for the clarification, Szehon.

-- Lefty


On Fri, Jul 18, 2014 at 6:37 PM, Szehon Ho <sz...@cloudera.com> wrote:

> Yea they are orthogonal to me.  Local mode (local MR) means execution is
> co-located in Hive, local metastore means the HMS (metadata service) is
> co-located with Hive.
>
> Thanks
> Szehon
>
>
> On Fri, Jul 18, 2014 at 12:57 PM, Lefty Leverenz <le...@gmail.com>
> wrote:
>
> > How is local mode (for execution of queries) related to local metastore,
> or
> > are they unrelated?
> >
> > I was just linking wikidocs for these topics to each other, then realized
> > they aren't identical.
> >
> >    - Hive, Map-Reduce and Local-Mode
> >    <
> >
> https://cwiki.apache.org/confluence/display/Hive/GettingStarted#GettingStarted-Hive,Map-ReduceandLocal-Mode
> > >
> >    - Local Metastore
> >    <
> >
> https://cwiki.apache.org/confluence/display/Hive/AdminManual+MetastoreAdmin#AdminManualMetastoreAdmin-LocalMetastore
> > >
> >
> > -- Lefty
> >
>

Re: Newbie question from an oldbie -- "local"

Posted by Szehon Ho <sz...@cloudera.com>.

Yea they are orthogonal to me.  Local mode (local MR) means execution is
co-located in Hive, local metastore means the HMS (metadata service) is
co-located with Hive.

Thanks
Szehon

On Fri, Jul 18, 2014 at 12:57 PM, Lefty Leverenz <le...@gmail.com>
wrote:

> How is local mode (for execution of queries) related to local metastore, or
> are they unrelated?
>
> I was just linking wikidocs for these topics to each other, then realized
> they aren't identical.
>
>    - Hive, Map-Reduce and Local-Mode
>    <
> https://cwiki.apache.org/confluence/display/Hive/GettingStarted#GettingStarted-Hive,Map-ReduceandLocal-Mode
> >
>    - Local Metastore
>    <
> https://cwiki.apache.org/confluence/display/Hive/AdminManual+MetastoreAdmin#AdminManualMetastoreAdmin-LocalMetastore
> >
>
> -- Lefty
>