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Date: Thu, 19 Mar 2009 14:40:29 -0700
Message-ID: <35a22e220903191440p5e2cb2f4i411b24b73cd4d3eb@mail.gmail.com>
Subject: Re: Dryad support
From: Amandeep Khurana <amansk@gmail.com>
To: core-dev@hadoop.apache.org
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Dryad isnt available outside MS and some univs...


Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz


On Thu, Mar 19, 2009 at 2:37 PM, Chris K Wensel <chris@wensel.net> wrote:

> I do not believe Dryad is available outside of MS and some universities.
>
> That said, Dryad is finer grained than MapReduce. That is, you would build
> MapReduce using Dryad model elements, not the other way around.
>
> Further, it offers no persistence layer, Cosmos FS is internal to MS and
> seems to have low regard. The typical model is running Dryad over a MS SQL
> Server cluster (partitioned tables).
>
> If you are really referring to DryadLINQ like functionality (an API that
> offers up the ability to chain explicit relational/set operations), I
> suggest you take a look at Cascading.
>
> cheers,
> ckw
>
>
> On Mar 18, 2009, at 9:45 AM, Chidambaran Kollengode wrote:
>
>  Is Dryad available externally?
>>
>> -----Original Message-----
>> From: Yingfeng Zhang [mailto:yingfeng.zhang@gmail.com]
>> Sent: Wednesday, March 18, 2009 10:04 PM
>> To: core-dev@hadoop.apache.org
>> Subject: Dryad support
>>
>> Hi, I wonder if there exist any possible trying to add a Dryad layer
>> into
>> Hadoop, has any plan to do such a work?
>>
>>
>> Best
>> Yingfeng
>>
>
> --
> Chris K Wensel
> chris@wensel.net
> http://www.cascading.org/
> http://www.scaleunlimited.com/
>
>

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