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Re: Architectural Questions
Mike,

Hive and Oozie are projects that build on top of Hadoop. Hadoop proper does
not use Derby.

Hope this clarifies.

Thxs.

Alejandro

On Tue, Aug 9, 2011 at 1:38 PM, Segel, Mike <[EMAIL PROTECTED]> wrote:

> Uhm...
> Ok... I just did a quick Google search on Hadoop and Derby...
> https://issues.apache.org/jira/browse/HADOOP-4133
>
> Then there's this subproject called Hive... :-)
> Oh and then there's this other subproject called Oozie... :-)
>
> Now Cloudera and other support MySQL in the role of Derby aka Cloudscape
> aka JavaDB.
> Here's a link to a blog on setting up MySQL...
>
> http://www.mazsoft.com/blog/post/2010/02/01/Setting-up-HadoopHive-to-use-MySQL-as-metastore.aspx
>
> :-)
>
>
> -----Original Message-----
> From: Harsh J [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, August 09, 2011 2:12 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Architectural Questions
>
> Hadoop doesn't use derby. It does, however, use HSQLDB for its external DB
> I/O and example components.
>
> On Tue, Aug 9, 2011 at 3:43 PM, JSaravanaKumar <[EMAIL PROTECTED]>
> wrote:
> >
> > can you please help me in understanding Why Derby is used along with
> Hadoop ?
> > --
> > View this message in context:
> > http://old.nabble.com/Architectural-Questions-tp32224940p32224940.html
> > Sent from the Hadoop core-dev mailing list archive at Nabble.com.
> >
> >
>
>
>
> --
> Harsh J
>
>
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