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From Chris K Wensel <ch...@wensel.net>
Subject Re: Dryad support
Date Thu, 19 Mar 2009 21:37:45 GMT
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.


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

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