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Hadoop, mail # dev - Architectural Questions


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Re: Architectural Questions
Alejandro Abdelnur 2011-08-09, 20:47
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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