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From marmbrus <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-6908] [SQL] Use isolated Hive client
Date Fri, 22 May 2015 04:36:18 GMT
Github user marmbrus commented on the pull request:

    https://github.com/apache/spark/pull/5876#issuecomment-104504904
  
    Yes, please file a JIRA.
    On May 21, 2015 9:29 PM, "coderfi" <notifications@github.com> wrote:
    
    > Has this been tested with mapr4?
    >
    > When running under python, I am running into an exception
    >
    > Caused by: java.lang.UnsatisfiedLinkError: Native Library /tmp/
    > mapr-root-libMapRClient.4.0.2-mapr.so already loaded in another
    > classloader
    > at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1931)
    > at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890)
    > at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851)
    > at java.lang.Runtime.load0(Runtime.java:795)
    > at java.lang.System.load(System.java:1062)
    > at com.mapr.fs.shim.LibraryLoader.load(LibraryLoader.java:29)
    >
    > This occurs under the following scenarios:
    > create a spark context + hive context
    > run a hive query
    > stop the spark context
    > create another spark context + hive context again
    > run a hive query
    > I get the Native Library exception
    >
    > From what I can tell, when the ClassLoader is hitting a MAPR class which
    > is attempting to load the native library (I presume, as part of a static
    > initializer).
    > Unfortunately, the JVM prohibits this the second time around. :(
    >
    > I could file a ticket with a full stack trace if you'd like.
    >
    > thanks,
    > Fi
    >
    > —
    > Reply to this email directly or view it on GitHub
    > <https://github.com/apache/spark/pull/5876#issuecomment-104503508>.
    >



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