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https://issues.apache.org/jira/browse/SPARK-1190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell updated SPARK-1190:
-----------------------------------
    Assignee: Patrick Wendell  (was: Patrick Cogan)

> Do not initialize log4j if slf4j log4j backend is not being used
> ----------------------------------------------------------------
>
>                 Key: SPARK-1190
>                 URL: https://issues.apache.org/jira/browse/SPARK-1190
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 0.9.0
>            Reporter: Patrick Wendell
>            Assignee: Patrick Wendell
>            Priority: Blocker
>             Fix For: 0.9.1, 1.0.0
>
>
> I already have a patch here just need to test it and commit. IIRC there were 
> some issues with the maven build.
> https://github.com/apache/incubator-spark/pull/573
> https://github.com/pwendell/incubator-spark/commit/66594e88e5be50fca073a7ef38fa62db4082b3c8
> initialization with: java.lang.StackOverflowError
>       at java.lang.ThreadLocal.access$400(ThreadLocal.java:72)
>       at java.lang.ThreadLocal$ThreadLocalMap.getEntry(ThreadLocal.java:376)
>       at java.lang.ThreadLocal$ThreadLocalMap.access$000(ThreadLocal.java:261)
>       at java.lang.ThreadLocal.get(ThreadLocal.java:146)
>       at java.lang.StringCoding.deref(StringCoding.java:63)
>       at java.lang.StringCoding.encode(StringCoding.java:330)
>       at java.lang.String.getBytes(String.java:916)
>       at java.io.UnixFileSystem.getBooleanAttributes0(Native Method)
>       at java.io.UnixFileSystem.getBooleanAttributes(UnixFileSystem.java:242)
>       at java.io.File.exists(File.java:813)
>       at sun.misc.URLClassPath$FileLoader.getResource(URLClassPath.java:1080)
>       at sun.misc.URLClassPath$FileLoader.findResource(URLClassPath.java:1047)
>       at sun.misc.URLClassPath.findResource(URLClassPath.java:176)
>       at java.net.URLClassLoader$2.run(URLClassLoader.java:551)
>       at java.net.URLClassLoader$2.run(URLClassLoader.java:549)
>       at java.security.AccessController.doPrivileged(Native Method)
>       at java.net.URLClassLoader.findResource(URLClassLoader.java:548)
>       at java.lang.ClassLoader.getResource(ClassLoader.java:1147)
>       at org.apache.spark.Logging$class.initializeLogging(Logging.scala:109)
>       at 
> org.apache.spark.Logging$class.initializeIfNecessary(Logging.scala:97)
>       at org.apache.spark.Logging$class.log(Logging.scala:36)
>       at org.apache.spark.util.Utils$.log(Utils.scala:47)



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