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From "Segel, Mike" <mse...@navteq.com>
Subject RE: Derby with Hadoop --Why?
Date Wed, 10 Aug 2011 12:34:07 GMT
Arrgh!
It's been far too many years since I was handed my diploma and kicked off campus. :-)
IMHO it's a bit esoteric for a class room homework assignment.  Maybe an interview question
used to stump most of the candidates?

The funny thing is that on the walk to work, I started to think of if it made sense for a
certain subset of m/r problems to use derby as an in memory db/local lightweight DB
Ok and before you say WTF, I'm talking about a subset of problems where depending on the input
to the Mapper.map() method, you may want to do a quick look up against a database which contains
lookup data that is static and is indexed. 

Ok, so maybe I shouldn't read my e-mails before heading off to work... :-)

-Mike


-----Original Message-----
From: Ted Dunning [mailto:tdunning@maprtech.com] 
Sent: Wednesday, August 10, 2011 12:55 AM
To: general@hadoop.apache.org
Subject: Re: Derby with Hadoop --Why?

No.  He meant nothing of the kind.  The other explanations expanded on this.

This sounds like homework.  If so, I would recommend a bit of reading before asking.

On Tue, Aug 9, 2011 at 10:37 PM, Saravana Kumar
<saravana.hadoop@gmail.com>wrote:
[SNIP]


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