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:[email protected]] Sent: Wednesday, March 18, 2009 10:04 PM To: [email protected] 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 [email protected] http://www.cascading.org/ http://www.scaleunlimited.com/
