Try: mvn --no-snapshot-updates
Try: https://github.com/takari/maven-profiler

On Wed, Jun 1, 2016 at 4:47 AM, Jorg Heymans <jorg.heym...@gmail.com> wrote:
> Hi,
>
> I am trying to pinpoint a performance issue we are incurring with maven
> under Jenkins. Basically what we are seeing is that maven is taking a very
> long time getting past the initial 'Scanning for projects' message. As you
> can see in below snippet, more than half a minute elapses before the first
> module is starting to build.
>
> *00:00:11.634* Maven home:
> /home/ci/jenkins/data/tools/hudson.tasks.Maven_MavenInstallation/maven3*00:00:11.634*
> Java version: 1.7.0_80, vendor: Oracle Corporation*00:00:11.634* Java
> home: /home/ci/jenkins/data/tools/hudson.model.JDK/jdk1.7/jre*00:00:11.634*
> Default locale: en, platform encoding: ISO646-US*00:00:11.634* OS
> name: "sunos", version: "5.10", arch: "sparc", family: "unix"
>
> *00:00:11.757* [INFO] Scanning for projects...
>
> *00:00:42.350* [INFO]
>                        *00:00:42.350* [INFO]
> ------------------------------------------------------------------------*00:00:42.350*
> [INFO] Building Document Implementation 0.2-SNAPSHOT
>
>
> This is a very small project we're building, containing only one maven
> module. In this case it's half a minute, we have seen other maven
> builds where it takes 2-3 minutes or more.
>
>
> Can anyone tell me what maven is doing in this 'Scanning for projects'
> that is potentially very slow ? If i run the build in offline mode the
> problem disappears, but that is not an option for us. Note that
> developers executing builds locally do not see the same performance
> issue.
>
>
> Thanks,
>
> Jorg
>
>
> PS the thread on the jenkins forum
> https://groups.google.com/forum/#!topic/jenkinsci-users/3s2MeImr2eY

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