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https://jira.codehaus.org/browse/MDEP-421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=332537#comment-332537
]
Gili commented on MDEP-421:
---------------------------
I believe there is a huge performance regression in version somewhere between
version 2.6 and 2.8. Version 2.6 was *much* faster at extracting files than 2.8
is. A file that used to take 20 seconds to extract is now taking over 5
minutes. Hard-drive usage is extremely low in 2.8 whereas in 2.6 it used to be
the bottleneck.
> Unpack Incredibly Slow for
> ---------------------------
>
> Key: MDEP-421
> URL: https://jira.codehaus.org/browse/MDEP-421
> Project: Maven Dependency Plugin
> Issue Type: Bug
> Components: unpack-dependencies
> Affects Versions: 2.8
> Reporter: Mike Gilbode
>
> I've got a zipfile that is 240MB and has ~84k entries. I'm trying to use
> unpack-dependencies and it is taking an inordinate amount of time such that
> it is basically unusable. It seems that it's eagerly trying to read through
> every zip file entry before actually unpacking. This takes roughly 15
> minutes where using the maven antrun plugin / unzip task takes less than a
> minute.
> java.lang.Thread.State: RUNNABLE
> at java.util.Hashtable.put(Hashtable.java:549)
> - locked <0x00000007e160ea18> (a java.util.Hashtable)
> at
> org.codehaus.plexus.archiver.zip.ZipFile.resolveLocalFileHeaderData(ZipFile.java:451)
> at org.codehaus.plexus.archiver.zip.ZipFile.<init>(ZipFile.java:153)
> at
> org.codehaus.plexus.archiver.zip.AbstractZipUnArchiver.execute(AbstractZipUnArchiver.java:138)
> at
> org.codehaus.plexus.archiver.AbstractUnArchiver.extract(AbstractUnArchiver.java:120)
> at
> org.apache.maven.plugin.dependency.AbstractDependencyMojo.unpack(AbstractDependencyMojo.java:315)
> at
> org.apache.maven.plugin.dependency.fromDependencies.UnpackDependenciesMojo.doExecute(UnpackDependenciesMojo.java:91)
> at
> org.apache.maven.plugin.dependency.AbstractDependencyMojo.execute(AbstractDependencyMojo.java:167)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
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