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Re: [m2e-users] m2e memory usage - part II
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Hi,
the memory is "stable", no memory leak detected. With same number of
project remain same, a new project allocates an expected amount of
memory (in MavenProject instance etc).
So this is really no memleak and no bug in m2e ;), only the size of
maven and aether artifact is surprising.
Worth mentioning: the original thread [1] shows a big amount of
org.sonatype.aether.graph.Exclusion - I guess that the user has simply
many project with many exclusions
Profiled environment: m2e 1.1 m6 with rebuilded maven runtime with
latest aether to avoid https://issues.sonatype.org/browse/AETHER-103
Igor Fedorenko píše v Út 17. 04. 2012 v 09:18 -0400:
> Does the memory usage stay stable or grows over time, provided no new
> projects are added to the workspace?
>
> --
> Regards,
> Igor
>
> On 12-04-17 9:13 AM, Martin Koci wrote:
> > Hi,
> >
> > there was a thread [1] about memory usage. We have the same problem -
> > big amount of memory with m2e, but according to memory profiling result
> > is problem not in m2e: MemoryAnalyzer shows (for profiled workspace) :
> >
> > 1) about 600 instances of
> > org.eclipse.m2e.core.internal.project.registry.MavenProjectFacade -
> > those instances retain about ~ 800MB (I suppose there is one 1:1
> > relation : one project in workspace = one MavenProjectFacade instance?)
> >
> > 2) each instance of MavenProjectFacade retain few MB but 99% of each
> > instance of
> > org.eclipse.m2e.core.internal.project.registry.MavenProjectFacade is
> > org.apache.maven.project.MavenProject - a structure from maven itself.
> >
> > 3) tha biggest structure in org.apache.maven.project.MavenProject are
> > Aether org.sonatype.aether.util.artifact.DefaultArtifact in some
> > collection.
> >
> > It seems that usage of memory grows inside maven and its dependency
> > management subproject aether, not in m2e. All instances of
> > org.apache.maven.project.MavenProject retain 780MB.
> > I'll discuss this issue in aether-devel list because in case on hundreds
> > of project in workspace can it cause OutOfMemoryError.
> >
> > Regards,
> >
> > Martin
> >
> > [1] http://dev.eclipse.org/mhonarc/lists/m2e-users/msg01115.html
> >
> > _______________________________________________
> > m2e-users mailing list
> > m2e-users@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/m2e-users
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