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From Ted Dunning <>
Subject Re: Current build taking a long time to install
Date Wed, 11 May 2011 04:20:03 GMT
Well, there isn't a complete sort of thing because Maven doesn't have a
finite or fixed number of options.  This is because nearly all of the
behavior of Maven is defined by plugins that are downloaded on first
invocation.  You are right that this is a problem that steepens the learning
curve for Maven, but part of the problem is the common assumption that
"maven is just like ant except broken".  Maven rolls together the problems
of managing software lifecycle, dependencies, group cooperation, definition
of standard practices and project comprehension into one package.  Ant does
part of the first task.  A key test is that IDE's can read all the project
information that they need from the pom, but they can't understand ant build
files well enough to function.

The normal way to skip tests is documented on the FAQ page:

The quick start pages are good as well.

The option that Benson mentioned is one that is defined in our own pom.xml
and thus isn't documented by the Maven guys.

On Tue, May 10, 2011 at 7:48 PM, Lance Norskog <> wrote:

> Sorry for off-topic- where is the great big page explaining maven
> command-line stuff? This is my biggest gripe about it compared to ant-
> you can find out what ant stuff does fairly quickly.
> Lance
> On Tue, May 10, 2011 at 5:03 PM, Benson Margulies <>
> wrote:
> > -Pfastinstall, which eliminates tests and also some other things.
> >
> > On Tue, May 10, 2011 at 2:58 PM, Grant Ingersoll <>
> wrote:
> >> You can skip the tests if you want, that usually helps: mvn -DskipTests
> install
> >>
> >> Perhaps there is better support in Maven 3 for parallel test execution
> (I've heard there is, but haven't heard good things about it, but then again
> the person telling me is not a Maven fan)
> >>
> >> On May 10, 2011, at 2:43 PM, Steven Bourke wrote:
> >>
> >>> I'd usually build from the latest mahout once a week, I've noticed the
> >>> current core is taking an what feels like an eternity to build! The
> >>> distributed lanczosSolver just took 6 minutes to finish running.
> >>>
> >>> Is this standard or has something perhaps gone amiss
> >>
> >>
> >>
> >
> --
> Lance Norskog

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