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Re: [m2e-users] Maven project cache size in ProjectRegistryManager
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The actual cache size is rather arbitrary, but m2e intentionally keeps the number of cached MavenProject instances very small and there is no way to configure the cache size. Eclipse is not expected to build anything before application launch, so the behaviour you observe unusual.
The limit on project cache size was introduced very early in m2e 1.5 development cycle, so unless you are upgrading from m2e 1.4 or earlier, something else must be going on.
I don't believe increasing the cache size or making it user-configurable is the right answer here. We need to stop Eclipse from running the build (if that's what it's doing) and maybe cache project runtime classpath such that m2e does not need to read MavenProjects during application launch.
On Thu, Jun 11, 2015, at 12:04 AM, Tami Takamiya wrote:
Hi,
This is my first post to this group.
I was not sure if I should post to the user group or the developer
group. Since I am an user, I post this here. If it seems more
appropriate in the developer group, I will re-post it.
====
We have a performance issue with using
m2e (version 1.6.0.20150325-2013). It seems like whenever we run
a program or a JUnit, lots of projects in workspace are rebuilt and stuck
at 57% with the "Verifying launch attributes..." message.
I ran a separate Eclipse instance in
debug mode and found there is a cache in org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager
class and it seems to be used for caching dependency information of each
Maven project.
However, according to the source code,
the maximum size of the project cache is hard-coded to 5, which I think
too small for our usage.
Is there any way to increase this value?
Or is this value set to 5 intentionally?
====
Tami Takamiya
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