[forge-issues] [JBoss JIRA] (FURNACE-106) LinuxWatchService: "Too many open files"

[Ondrej Zizka (JIRA)]

    [ https://issues.jboss.org/browse/FURNACE-106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168197#comment-13168197 ] 

Ondrej Zizka commented on FURNACE-106:
--------------------------------------

The minimal test case could be the Maven plugin project, running itself in after the package phase, and installing Windup addons which are in Maven central repo.

> LinuxWatchService: "Too many open files"
> ----------------------------------------
>
>                 Key: FURNACE-106
>                 URL: https://issues.jboss.org/browse/FURNACE-106
>             Project: Forge: Furnace
>          Issue Type: Bug
>          Components: Runtime
>    Affects Versions: 2.22.10.Final
>            Reporter: Ondrej Zizka
>         Attachments: strace.log.9838
>
>
> When running Windup in a Maven plugin, I get the exception below.
> I have increased all linux limits to 1 000 000.
> STR:
> git clone https://github.com/OndraZizka/windup
> cd windup
> git co 
> mvn clean install -DskipTests
> cd ..
> git clone https://github.com/OndraZizka/windup-maven-plugin.git
> cd windup-maven-plugin
> git co bfaa7b6
> mvn clean install
> cd ..
> git clone https://github.com/OndraZizka/windup-quickstarts.git
> cd windup-quickstarts
> git co 9b991fc8db1
> mvn clean install
>  
> git clone  https://github.com/OndraZizka/windup.git
> {code}
> 2016-01-28 17:46:52 WARNING org.jboss.forge.furnace.impl.FurnaceImpl <init>() File monitoring could not be started.
> java.io.IOException: Too many open files
> 	at sun.nio.fs.LinuxWatchService.<init>(LinuxWatchService.java:61)
> 	at sun.nio.fs.LinuxFileSystem.newWatchService(LinuxFileSystem.java:47)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl.<init>(FurnaceImpl.java:152)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl_$$_javassist_9290627c-c1d3-4961-b1cd-6bd226307dc3.<init>(FurnaceImpl_$$_javassist_9290627c-c1d3-4961-b1cd-6bd226307dc3.java)
> 	at sun.reflect.GeneratedConstructorAccessor65.newInstance(Unknown Source)
> 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> 	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> 	at java.lang.Class.newInstance(Class.java:383)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$3.call(ClassLoaderAdapterCallback.java:992)
> 	at org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:42)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhance(ClassLoaderAdapterCallback.java:900)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhance(ClassLoaderAdapterCallback.java:880)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhanceSingleParameterValue(ClassLoaderAdapterCallback.java:776)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhanceParameterValues(ClassLoaderAdapterCallback.java:648)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.access$000(ClassLoaderAdapterCallback.java:37)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$2.call(ClassLoaderAdapterCallback.java:117)
> 	at org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:42)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.invoke(ClassLoaderAdapterCallback.java:96)
> 	at org.jboss.forge.furnace.spi.ContainerLifecycleListener_$$_javassist_ad6baef1-d99b-4e97-8f1e-324f98eb5edf.afterConfigurationScan(ContainerLifecycleListener_$$_javassist_ad6baef1-d99b-4e97-8f1e-324f98eb5edf.java)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl.fireAfterConfigurationScanEvent(FurnaceImpl.java:657)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl.reloadConfiguration(FurnaceImpl.java:606)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl.access$500(FurnaceImpl.java:59)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl$2.call(FurnaceImpl.java:276)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl$2.call(FurnaceImpl.java:241)
> 	at org.jboss.forge.furnace.impl.lock.LockManagerImpl.performLocked(LockManagerImpl.java:55)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl.start(FurnaceImpl.java:240)
> 	at org.jboss.forge.furnace.impl.FurnaceImpl$1$1.run(FurnaceImpl.java:199)
> {code}



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