Hi Igor,
thanks for your advice. I also considered upgrading Maven first, but this is
not possible for us at the moment due to enterprise constraints.
If the Takari Smart Builder isn't compatible to 3.0.5 I can't try it. :-/
Best regards,
Peter Wippermann
Senior Consultant
IBM Global Business Services
Application Innovation Services - Insurance
--------------------------------------------------------------------------------
Tel: 0511-645 x58384
0151-15 16 1870
E-Mail: [email protected]
IBM Deutschland; Stockholmer Allee 30a; 44269 Dortmund
--------------------------------------------------------------------------------
IBM Deutschland GmbH / Vorsitzender des Aufsichtsrats: Martin Jetter -
Geschäftsführung: Martina Koederitz (Vorsitzende), Reinhard Reschke, Dieter
Scholz, Gregor Pillen, Ivo Koerner - Sitz der Gesellschaft: Ehningen /
Registergericht: Amtsgericht Stuttgart, HRB 14562 / WEEE-Reg.-Nr. DE 99369940
-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]]
Gesendet: Donnerstag, 26. März 2015 12:24
An: [email protected]
Betreff: Re: Multi module projects are build "too early" in a multi threaded
build, causing it to fail
Maven 3.0.5 is kinda old, do you see the same behaviour with the latest
3.3.1 release? I believe there were changes in parallel build, but don't know
if they address your specific problem.
You may also want to try Takari Smart Builder [1]. It schedules build of the
longest dependency chain first (called "build critical path"), which results in
significant reduction of overall build time for some projects. I can help with
setup (which is much easier with Maven 3.3.1,
btw) and other questions here or on Takari User google group.
[1] https://github.com/takari/takari-smart-builder
--
Regards,
Igor
On Thu, Mar 26, 2015, at 05:47 AM, Wippermann, Peter wrote:
> Hi everybody,
>
> I have a complex multi module build with 171 modules in total and a
> nesting depth of up to 4. Too speed up the build, I wanted to use the
> parallel build feature of Maven 3.0.5 with 4 threads:
> https://cwiki.apache.org/confluence/display/MAVEN/Parallel+builds+in+M
> aven+3
>
> The build starts like normal and the reactor build order is correctly
> identified (and is identical to the single threaded one).
> But the build fails shortly after, when the assembly plugin is looking
> for a submodule's artefact file, which does not (yet!) exist. The
> final print of the build status reveals, that projects where tried to
> build from "the middle of the reactor build order". This certainly has
> to fail, because their dependencies would have been earlier in the
> build order and haven't been built yet.
>
> The situation is repeatable and always the same: 2 aggregators have
> been built successfully and 3 aggregator projects have failed.
>
> I debugged Maven 3.0.5 to the point, that I think this is a bug, but
> wanted to assure with you here first.
> I suspect the initialisation of the Directed Acyclic Graph (DAG) in
> the org.apache.maven.project.ProjectSorter Class to be faulty. I
> debugged it for one of my multi module projects. There I can see that
> for all dependencies, build plugins, build extensions and the parent,
> edges are added to the DAG. But not so for the modules!?
>
> Since the modules are not considered, these aggregator projects are
> built very early and cause the assembly plugin to fail afterwards.
> Any ideas? Is this a bug?
>
> Best regards,
> Peter Wippermann
>
> Senior Consultant
> IBM Global Business Services
> Application Innovation Services - Insurance
>
> --------------------------------------------------------------------------------
> Tel: 0511-645 x58384
> 0151-15 16 1870
> E-Mail: [email protected]
>
> IBM Deutschland; Stockholmer Allee 30a; 44269 Dortmund
> ----------------------------------------------------------------------
> ---------- IBM Deutschland GmbH / Vorsitzender des Aufsichtsrats:
> Martin Jetter -
> Geschäftsführung: Martina Koederitz (Vorsitzende), Reinhard Reschke,
> Dieter Scholz, Gregor Pillen, Ivo Koerner - Sitz der Gesellschaft:
> Ehningen / Registergericht: Amtsgericht Stuttgart, HRB 14562 /
> WEEE-Reg.-Nr. DE 99369940
>
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