Software patents are not recognised nor enforcable in European Union member 
states (UK, France, Germany, Belgium etc.). The Apache license v.2.0 states:

"This License shall be governed by the law of the jurisdiction specified in a 
notice contained within the Original Software..."

Do you know which jurisdiction you chose for the Hadoop MapReduce 
implementation - seems to me to be relevant? I don't find a reference to a 
jurisdiction in release 0.20.1?

-----Original Message-----
From: Lori Ann Martin [mailto:[email protected]]
Sent: Fri 1/22/2010 8:31 PM
To: [email protected]
Subject: RE: Google Patent on MapReduce
 
Are you in Los Angeles?

-----Original Message-----
From: [email protected] [mailto:[email protected]] 
Sent: Friday, January 22, 2010 11:28 AM
To: [email protected]
Subject: RE: Google Patent on MapReduce

The patent covers only the implementation, but not the programming model. If 
Google enforces, Hadoop could change its implementation to get around. The 
independent claims 1 and 9 have too many "wherein" clauses that, if Hadoop just 
changes one aspect, it can get around the claim language. 

http://huanliu.wordpress.com/2010/01/22/googles-mapreduce-patent-and-its-impact-on-hadoop-and-cloud-mapreduce/

-Huan

> -----Original Message-----
> From: Evert Lammerts [mailto:[email protected]]
> Sent: Wednesday, January 20, 2010 2:12 PM
> To: [email protected]
> Subject: RE: Google Patent on MapReduce
> 
> I tend to second that - nothing to worry about:
> http://gigaom.com/2010/01/19/why-hadoop-users-shouldnt-fear-googles-
> new-mapreduce-patent/.
> 
> Evert Lammerts
> ________________________________________
> From: Robert Burrell Donkin [[email protected]]
> Sent: Wednesday, January 20, 2010 11:10 PM
> To: [email protected]
> Subject: Re: Google Patent on MapReduce
> 
> On Wed, Jan 20, 2010 at 10:06 PM, Robert Burrell Donkin
> <[email protected]> wrote:
> > On Wed, Jan 20, 2010 at 8:07 PM, Something Something
> > <[email protected]> wrote:
> >> Here's some more info:
> >>
> >> http://arstechnica.com/open-source/news/2010/01/googles-mapreduce-
> patent-what-does-it-mean-for-hadoop.ars
> >>
> >> It will be nice to get some official announcement from Apache Hadoop
> team
> >> regarding future of Hadoop.
> >>
> >> - A very scared Hadoop Fan :(
> >
> > don't worry
> >
> > every substantial application has a very large probability of patent
> > infringement
> 
> basically, no company that uses software can enforce a software patent
> against any tech major due to mutually-assured destruction through
> software patent armageddon. lots of tech majors use hadoop ergo google
> would be MAD to use the patent.
> 
> - robert



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