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From "Thiyagarajan Gnanasekaran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ATLAS-200) Titan exception
Date Mon, 16 Nov 2015 10:03:11 GMT

    [ https://issues.apache.org/jira/browse/ATLAS-200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15006445#comment-15006445
] 

Thiyagarajan Gnanasekaran commented on ATLAS-200:
-------------------------------------------------

Hi,

I am not able to reproduce the issue from latest sources. Could you please confirm ?

This seems to be Reflections Library issue used by the Titan DB, Someone has already raised
the same in the following projects & provided a workaround.

1) https://github.com/ronmamo/reflections/issues/80
2) https://issues.apache.org/jira/browse/ISIS-805









> Titan exception
> ---------------
>
>                 Key: ATLAS-200
>                 URL: https://issues.apache.org/jira/browse/ATLAS-200
>             Project: Atlas
>          Issue Type: Bug
>            Reporter: Shwetha G S
>
> Its not harmful and server start doesn't fail. But its confusing being in the logs
> {noformat}
> 2015-10-01 12:28:22,725 WARN  - [main:] ~ could not create Vfs.Dir from url. ignoring
the exception and continuing (Reflections:208)
> org.reflections.ReflectionsException: could not create Vfs.Dir from url, no matching
UrlType was found [file:/System/Library/Java/Extensions/libmlib_jai.jnilib]
> either use fromURL(final URL url, final List<UrlType> urlTypes) or use the static
setDefaultURLTypes(final List<UrlType> urlTypes) or addDefaultURLTypes(UrlType urlType)
with your specialized UrlType.
>         at org.reflections.vfs.Vfs.fromURL(Vfs.java:109)
>         at org.reflections.vfs.Vfs.fromURL(Vfs.java:91)
>         at org.reflections.Reflections.scan(Reflections.java:231)
>         at org.reflections.Reflections.scan(Reflections.java:204)
>         at org.reflections.Reflections.<init>(Reflections.java:129)
>         at com.thinkaurelius.titan.core.util.ReflectiveConfigOptionLoader.loadAllClassesUnsafe(ReflectiveConfigOptionLoader.java:222)
>         at com.thinkaurelius.titan.core.util.ReflectiveConfigOptionLoader.load(ReflectiveConfigOptionLoader.java:194)
>         at com.thinkaurelius.titan.core.util.ReflectiveConfigOptionLoader.loadAll(ReflectiveConfigOptionLoader.java:86)
>         at com.thinkaurelius.titan.diskstorage.configuration.ConfigNamespace.getChild(ConfigNamespace.java:71)
>         at com.thinkaurelius.titan.diskstorage.configuration.ConfigElement.parse(ConfigElement.java:169)
>         at com.thinkaurelius.titan.diskstorage.configuration.BasicConfiguration.getAll(BasicConfiguration.java:80)
>         at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.<init>(GraphDatabaseConfiguration.java:1344)
>         at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:93)
>         at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:73)
>         at org.apache.atlas.repository.graph.TitanGraphProvider.get(TitanGraphProvider.java:101)
>         at org.apache.atlas.repository.graph.TitanGraphProvider.get(TitanGraphProvider.java:42)
>         at com.google.inject.throwingproviders.ThrowingProviderBinder$SecondaryBinder$3.get(ThrowingProviderBinder.java:350)
>         at com.google.inject.throwingproviders.ThrowingProviderBinder$SecondaryBinder$3.get(ThrowingProviderBinder.java:346)
>         at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
>         at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:53)
>         at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61)
>         at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
>         at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
>         at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
>         at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
>         at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145)
>         at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
>         at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:205)
>         at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:199)
>         at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
>         at com.google.inject.internal.InternalInjectorCreator.loadEagerSingletons(InternalInjectorCreator.java:199)
>         at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:180)
>         at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:110)
>         at com.google.inject.Guice.createInjector(Guice.java:96)
>         at com.google.inject.Guice.createInjector(Guice.java:73)
>         at com.google.inject.Guice.createInjector(Guice.java:62)
>         at org.apache.atlas.web.listeners.GuiceServletConfig.getInjector(GuiceServletConfig.java:69)
>         at com.google.inject.servlet.GuiceServletContextListener.contextInitialized(GuiceServletContextListener.java:47)
>         at org.apache.atlas.web.listeners.GuiceServletConfig.contextInitialized(GuiceServletConfig.java:109)
>         at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:800)
>         at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444)
>         at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:791)
>         at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294)
>         at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
>         at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
>         at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
>         at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505)
>         at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
>         at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
>         at org.eclipse.jetty.server.Server.start(Server.java:387)
>         at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
>         at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
>         at org.eclipse.jetty.server.Server.doStart(Server.java:354)
>         at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
>         at org.apache.atlas.web.service.EmbeddedServer.start(EmbeddedServer.java:88)
>         at org.apache.atlas.Main.main(Main.java:106)
> {noformat}



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