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From Chris K Wensel <ch...@wensel.net>
Subject Re: Cascading
Date Wed, 23 Jan 2008 20:39:54 GMT
Hey thanks!

I wasn't aware of Dryad until after I got started. But it is much  
lower level than Cascading.

That is, I believe you can implement the MapReduce model using Dryad,  
Cascading (currently) relies on the MapReduce model.

Pig and Jaql also showed up on my radar after I got started. but I see  
them as complimentary, they can participate in a Flow, or be a kind of  
Flow. that's currently undecided.

But it makes perfect sense to use Cascading to accumulate and cleanup  
data, and then hand it to Pig/Jaql for the really hard stuff, then let  
Cascading put on the finishing touches.


On Jan 23, 2008, at 12:27 PM, Steve Severance wrote:

> Hi Chris,
> 	Really interesting stuff. Definitely very useful for building more
> complex apps. I am wondering if you were inspired at all by  
> Microsofts Dryad
> project which implements a vertex passed distributed processing  
> platform.
> Once again good job.
> Steve
>> -----Original Message-----
>> From: Chris K Wensel [mailto:chris@wensel.net]
>> Sent: Wednesday, January 23, 2008 1:34 PM
>> To: core-user@hadoop.apache.org
>> Subject: Re: Cascading
>> Thought I would briefly mention a new overview page that attempts to
>> explain what Cascading does in a little more detail.
>> It should answer some of the questions I've received.
>> http://www.cascading.org/overview.html
>> I'll leave you alone now.. <grin>
>> cheers
>> ckw
>> On Jan 21, 2008, at 7:46 PM, Chris K Wensel wrote:
>>> Hey all,
>>> Some months ago I decided to poke around deeper with Hadoop, after
>>> having been a Nutch user for some time.
>>> After way to much of the aforementioned poking, I decided to give my
>>> work a name, a home, and set it free.
>>> You can find the results here:
>>> http://www.cascading.org/
>>> It seems to be useful, but that may not hold true for anyone other
>>> than me.
>>> But do please give it a look and let me know what you think, if you
>>> are so inclined to think about it. If you use it, I would love to
>>> hear about that as well.
>>> If it works for whatever you need it for, great news. If not, feel
>>> free to complain or contribute. It's hosted on google code and
>>> subsequently has a mail list and issue tracker.
>>> The lack of comprehensive documentation is slowly being remedied.
>>> regards,
>>> ckw
>>> Chris K Wensel
>>> chris@wensel.net
>>> http://chris.wensel.net/
>> Chris K Wensel
>> chris@wensel.net
>> http://chris.wensel.net/

Chris K Wensel

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