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From Ivo van Dongen <...@func.nl>
Subject Exception in large maven2 build: Too many open files
Date Thu, 19 Apr 2007 14:03:47 GMT
Hi,

We ran into a problem with a large maven2 build. In the last stages of 
the build (creating the war) an exception is thrown saying that there 
are too many open files. We're using continuum 1.0.3 on a debian 
(stable) server. We've already upped the system/process file handle limits.
The last part of the maven output:

[INFO] [war:war] [INFO] Exploding webapp... [INFO] Copy webapp 
webResources to 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT 
[INFO] Copy webapp webResources to 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT 
[INFO] Assembling webapp tesis in 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT 
[INFO] Generating war 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT.war 
[INFO] Building war: 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT.war 
[INFO] 
------------------------------------------------------------------------ 
[ERROR] BUILD ERROR [INFO] 
------------------------------------------------------------------------ 
[INFO] Error assembling WAR: Problem creating war: 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT/WEB-INF/lib/XmlSchema-1.1.jar

(Too many open files) [INFO] 
------------------------------------------------------------------------ 
[INFO] Trace org.apache.maven.lifecycle.LifecycleExecutionException: 
Error assembling WAR: Problem creating war: 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT/WEB-INF/lib/XmlSchema-1.1.jar

(Too many open files) at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:559)

at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:475)

at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:454)

at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:306)

at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:273)

at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:140)

at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322) at 
org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115) at 
org.apache.maven.cli.MavenCli.main(MavenCli.java:256) at 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:585) at 
org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at 
org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at 
org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at 
org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: 
org.apache.maven.plugin.MojoExecutionException: Error assembling WAR: 
Problem creating war: 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT/WEB-INF/lib/XmlSchema-1.1.jar

(Too many open files) at 
org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:149) at 
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:412) 
at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:534)

... 16 more Caused by: org.codehaus.plexus.archiver.ArchiverException: 
Problem creating war: 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT/WEB-INF/lib/XmlSchema-1.1.jar

(Too many open files) at 
org.codehaus.plexus.archiver.zip.AbstractZipArchiver.createArchiveMain(AbstractZipArchiver.java:403)

at 
org.codehaus.plexus.archiver.zip.AbstractZipArchiver.createArchive(AbstractZipArchiver.java:229)

at 
org.apache.maven.archiver.MavenArchiver.createArchive(MavenArchiver.java:332) 
at 
org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:183) 
at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:133) ... 18 
more Caused by: java.io.FileNotFoundException: 
/opt/continuum-1.0.3/apps/continuum/working-directory/55/target/ROOT/WEB-INF/lib/XmlSchema-1.1.jar

(Too many open files) at java.io.FileInputStream.open(Native Method) at 
java.io.FileInputStream.(FileInputStream.java:106) at 
org.codehaus.plexus.archiver.zip.AbstractZipArchiver.zipFile(AbstractZipArchiver.java:679)

at 
org.codehaus.plexus.archiver.zip.AbstractZipArchiver.addResources(AbstractZipArchiver.java:492)

at 
org.codehaus.plexus.archiver.zip.AbstractZipArchiver.createArchiveMain(AbstractZipArchiver.java:330)

... 22 more [INFO] 
------------------------------------------------------------------------ 
[INFO] Total time: 3 minutes 54 seconds [INFO] Finished at: Thu Apr 19 
14:26:45 CEST 2007 [INFO] Final Memory: 106M/209M [INFO] 
------------------------------------------------------------------------


Any suggestions?

Thanks in advance,
Ivo van Dongen

PS I've filed a JIRA issue: http://jira.codehaus.org/browse/CONTINUUM-1247

-- 
Ivo van Dongen
Func. Internet Integration
Prins Hendrikkade 20-21, 1012 TL Amsterdam
W http://www.func.nl
T +31 20 4230000
F +31 20 4223500 


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