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Subject: Re: HADOOP-9279 still not fixed, needs reopening
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From: Chris Nauroth <cnauroth@hortonworks.com>
To: Alan Burlison <Alan.Burlison@oracle.com>, "common-dev@hadoop.apache.org"
	<common-dev@hadoop.apache.org>
Thread-Topic: HADOOP-9279 still not fixed, needs reopening
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Date: Wed, 13 May 2015 16:38:55 +0000
Message-ID: <D178CB5C.221BD%cnauroth@hortonworks.com>
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I usually tell people starting fresh to do "mvn clean install -Pnative
-DskipTests" as a first step.  That's a good validation of your build
environment, and it will put a SNAPSHOT version of each sub-module into
your local Maven repository.  After that, you can do smaller incremental
builds by cd'ing into hadoop-hdfs or hadoop-yarn-server-nodemanager or
anything else and running things like "mvn test" for just that sub-module.

--Chris Nauroth


On 5/13/15, 9:28 AM, "Alan Burlison" <Alan.Burlison@oracle.com> wrote:

>On 13/05/2015 16:53, Chris Nauroth wrote:
>
>> Last time I checked, this was particular to "mvn compile" and would not
>> occur for other kinds of builds from the root of the source tree like
>>"mvn
>> test" or "mvn package".  This is a Maven behavior that is unavoidable
>> unless we pull hadoop-maven-plugins out into its own project separate
>>from
>> the Hadoop source tree, which is something the community already decided
>> against.  We can only document the behavior.
>
>Thanks for the explanation, I've added a comment to HADOOP-9279 to that
>effect. What's the best recommended target for someone to use when
>starting from scratch, test?
>
>> Please feel free to file a new issue if you'd like to see this clarified
>> in BUILDING.txt.  We'd welcome a patch if you want to provide one.
>>Thanks!
>
>Yes, I'll do that.
>
>--=20
>Alan Burlison
>--