Mailing-List: contact dev-help@mahout.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@mahout.apache.org
Received-SPF: pass (nike.apache.org: domain of ted.dunning@gmail.com
 designates 209.85.216.170 as permitted sender)
References: 
 <1112110681.6546.1337210468153.JavaMail.tomcat@hel.zones.apache.org>
In-Reply-To: 
 <1112110681.6546.1337210468153.JavaMail.tomcat@hel.zones.apache.org>
Mime-Version: 1.0 (1.0)
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=us-ascii
Message-Id: <3E7AF99C-35F7-429B-993A-443BEB8C8AE3@gmail.com>
Cc: "dev@mahout.apache.org" <dev@mahout.apache.org>
From: Ted Dunning <ted.dunning@gmail.com>
Subject: Re: [jira] [Commented] (MAHOUT-768) Duplicated DoubleFunction in
 mahout and mahout-collections (mahout.math package).
Date: Wed, 16 May 2012 21:47:29 -0400
To: "dev@mahout.apache.org" <dev@mahout.apache.org>

This appears to be a problem that occurs when one build is done right after a=
nother.=20

MVn clean clears it up (temporarily).  The problem appears to be related to t=
he code generation for collections. Previously collections would never be bu=
ilt twice on the same directory.=20

As I get time I will be messing with this to get it cleaned up. In the meant=
ime we have a work around and I can even disable the building of the collect=
ions. =20

Thoughts?

Benson?  Are you out there?

Sent from my iPhone

On May 16, 2012, at 7:21 PM, "Hudson (JIRA)" <jira@apache.org> wrote:

>=20
>    [ https://issues.apache.org/jira/browse/MAHOUT-768?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D13277=
256#comment-13277256 ]=20
>=20
> Hudson commented on MAHOUT-768:
> -------------------------------
>=20
> Integrated in Mahout-Quality #1489 (See [https://builds.apache.org/job/Mah=
out-Quality/1489/])
>    MAHOUT-768 - Fixed dependencies at top-level and in distribution. (Revi=
sion 1339406)
>=20
>     Result =3D FAILURE
> tdunning : http://svn.apache.org/viewcvs.cgi/?root=3DApache-SVN&view=3Drev=
&rev=3D1339406
> Files :=20
> * /mahout/trunk/distribution/pom.xml
> * /mahout/trunk/pom.xml
>=20
>=20
>> Duplicated DoubleFunction in mahout and mahout-collections (mahout.math p=
ackage).
>> -------------------------------------------------------------------------=
--------
>>=20
>>                Key: MAHOUT-768
>>                URL: https://issues.apache.org/jira/browse/MAHOUT-768
>>            Project: Mahout
>>         Issue Type: Improvement
>>         Components: collections, Math
>>   Affects Versions: 0.5, collections-1.0
>>           Reporter: Dawid Weiss
>>           Assignee: Ted Dunning
>>           Priority: Minor
>>            Fix For: 0.7
>>=20
>>=20
>> DoubleFunction is duplicated in Mahout Math and Collections. There are al=
so other things inside m.math.* package that are kept there to avoid circula=
r dependencies... Simply removing DoubleFunction from collections is not goi=
ng to work because it is needed for compilation (again, circular dependency b=
etween collections and math). I see two solutions:
>> 1) extract the common definitions inside math.function.* into a separate m=
odule. This is a clean solution, but obviously scatters the code even furthe=
r.
>> 2) create a compilation-time, optional dependency on mahout 0.5 in collec=
tions, remove the entire mahout.math.* subpackage from collections and live w=
ith this. I don't know how Maven handles circular dependencies of this type:=

>> collections [trunk] -> [optional, required at build time] mahout.math 0.5=

>> mahout.math [trunk] -> collections [trunk]
>> it seems tricky and error-prone, but should also work.
>> Looking for other ideas of cleaning this mess up, of course.
>> Dawid
>=20
> --
> This message is automatically generated by JIRA.
> If you think it was sent incorrectly, please contact your JIRA administrat=
ors: https://issues.apache.org/jira/secure/ContactAdministrators!default.jsp=
a
> For more information on JIRA, see: http://www.atlassian.com/software/jira
>=20
>=20