mahout-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From zhao zhendong <zhaozhend...@gmail.com>
Subject Re: [jira] Commented: (MAHOUT-238) Further Dependency Cleanup
Date Fri, 08 Jan 2010 16:02:26 GMT
Thanks Drew,

+1 for me to maintain a stable hadoop release, such as 0.20.1. The reason is
obvious :)

Cheers,
Zhendong


On Fri, Jan 8, 2010 at 10:23 PM, Drew Farris <drew.farris@gmail.com> wrote:

> First, apologies for propagating a problem here.
>
> Since 0.20.2 is a snapshot, there's no release of hadoop that
> corresponds directly to it. In maven terms, a snapshot could be
> anything after 0.20.1 but prior to a formal release of 0.20.2. In the
> repo, they are timestamped.
>
> We're pulling this jar from the apache snapsot repo here:
>
> https://repository.apache.org/content/groups/snapshots/org/apache/hadoop/hadoop-core/0.20.2-SNAPSHOT/
>
> Unfortunately, hadoop doesn't publish a source jar alongisde their
> snapshot, which makes it a bit difficut to pin down what was used for
> the build of jar. From the maven repo, you can see the jar was
> generated 2009.11.13, 1:09:47 GMT, so as Ted suggests one option would
> be to check out the hadoop-core sources from that date and use those
> as a basis for your work on MAHOUT-232
>
> I'm not 100% comfortable with this. When I picked up the work for
> MAHOUT-238, I noticed that hadoop-0.20.2 SNAPSHOT was in core yet
> hadoop-0.20.1, the mahout hand-rolled version, was used in math and
> thus propagated as a transient dependency across all of the projects.
>
> I believe we moved to a SNAPSHOT so that we could use one of the
> offical hadoop dependencies instead of our hand-rolled version of
> 0.20.1. IIRC, there are some bugfixes that we required to, but I'm not
> certain about that?
>
> Does anyone feel that we should move back 0.20.1 and use a stable
> hadoop release instead of using the snapshot, so that the version of
> the code we depend on is clearer?
>
> Drew
>
> On Fri, Jan 8, 2010 at 2:08 AM, Ted Dunning <ted.dunning@gmail.com> wrote:
> > SVN should help: http://svn.apache.org/viewvc/hadoop/mapreduce/trunk/
> >
> > If you look at the release notes, you should be able to discern what made
> up
> > 20.2 if it is a real release (looking at common made is look like it
> isn't).
> >
> > On Thu, Jan 7, 2010 at 9:46 PM, zhao zhendong <zhaozhendong@gmail.com
> >wrote:
> >
> >> Where can I find the source code of hadoop-0.20.2?
> >
> >
> >
> >
> > --
> > Ted Dunning, CTO
> > DeepDyve
> >
>



-- 
-------------------------------------------------------------

Zhen-Dong Zhao (Maxim)

<><<><><><><><><><>><><><><><>>>>>>

Department of Computer Science
School of Computing
National University of Singapore

><><><><><><><><><><><><><><><><<<<
Homepage:http://zhaozhendong.googlepages.com
Mail: zhaozhendong@gmail.com
>>>>>>><><><><><><><><<><>><><<<<<<

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message