Hi All,

I'm using PostgreSQL for Hive metastore in production. As far as I know
MySQL has limitations on constraints in unicode environments. I remember
Hive could not create metastore schema automatically with MySQL, Innodb and
UTF-8 encoding environment. so I switched PostgreSQL for metastore.

Actually, it works with PostgreSQL. but first time when one run hive cli
with PostgreSQL, there are problems on creating metastore schema because JDO
does not work well with PostgreSQL. I created the metastore schema manually.
after that, everything works fine.


- Youngwoo

2011/1/17 Edward Capriolo <edlinuxg...@gmail.com>

> You are the first person I have heard of using postgres. I commend you
> for not succumbing to the social pressure and just installing mysql.
> However I would advice succumbing to the social pressure and using
> either derby or mysql.
> The reason I say this is because jpox "has support" for a number of
> data stores (M$ SQL server) however, people have run into issues with
> them. Databases other then derby and mysql 'should work' but are
> generally untested.
> Edward
> On Mon, Jan 17, 2011 at 2:52 AM, wd <w...@wdicc.com> wrote:
> > Finally I found, when use hive-0.5.0-bin, 'drop table' will hung at first
> > time, after Ctrl-c kill the client, and run hive again, it can
> successfully
> > drop the table. When use hive-0.6.0-bin, it will always hung there.
> >
> > 2011/1/6 wd <w...@wdicc.com>
> >>
> >> hi,
> >>
> >> I've setup a single node hadoop and hive. And can create table in hive,
> >> but can't drop table, hive cli will hang there, nothing more infos.
> >>
> >> hive-0.6.0-bin
> >> hadoop-0.20.2
> >> jre1.6.0_23
> >> postgresql-9.0-801.jdbc4.jar (have tried postgresql-8.4-701.jdbc4.jar)
> >> pgsql 9.0.2
> >>
> >> How to find what's wrong happed? thx.
> >
> >

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