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  1. Hadoop Common
  2. HADOOP-16159

Deadlock when using FsUrlStreamHandlerFactory

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Details

    • Bug
    • Status: Open
    • Critical
    • Resolution: Unresolved
    • 2.8.5, 3.1.2
    • None
    • None
    • None

    Description

      URL.setURLStreamHandlerFactory(new FsUrlStreamHandlerFactory())

       This induces the thread lock

      Thread 1 : Does load class which will do below

      • waiting to lock <0x00000005c0c1e5e0> (a org.apache.hadoop.conf.Configuration)
        at org.apache.hadoop.conf.Configuration.handleDeprecation(Configuration.java:684)
        at org.apache.hadoop.conf.Configuration.get(Configuration.java:1088)
        at org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:1145)
        at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2363)
        at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2840)
        at org.apache.hadoop.fs.FsUrlStreamHandlerFactory.createURLStreamHandler(FsUrlStreamHandlerFactory.java:74)
        at java.net.URL.getURLStreamHandler(URL.java:1142)
        at java.net.URL.<init>(URL.java:420)
        at sun.misc.URLClassPath$JarLoader.<init>(URLClassPath.java:812)
        at sun.misc.URLClassPath$JarLoader$3.run(URLClassPath.java:1094)
        at sun.misc.URLClassPath$JarLoader$3.run(URLClassPath.java:1091)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1090)
        at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1050)
        at sun.misc.URLClassPath.getResource(URLClassPath.java:239)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:365)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      • locked <0x00000005b7991168> (a org.apache.spark.util.MutableURLClassLoader)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:348)  

      Thread 2 : Create new URL

      • waiting to lock <0x00000005b7991168> (a org.apache.spark.util.MutableURLClassLoader)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at org.apache.xerces.parsers.ObjectFactory.findProviderClass(Unknown Source)
        at org.apache.xerces.parsers.ObjectFactory.newInstance(Unknown Source)
        at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
        at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
        at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source)
        at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source)
        at org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
        at org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown Source)
        at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2737)
        at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2696)
        at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2579)
      • locked <0x00000005c0c1e5e0> (a org.apache.hadoop.conf.Configuration)
        at org.apache.hadoop.conf.Configuration.get(Configuration.java:1091)
        at org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:1145)
        at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2363)
        at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2840)
        at org.apache.hadoop.fs.FsUrlStreamHandlerFactory.createURLStreamHandler(FsUrlStreamHandlerFactory.java:74)
        at java.net.URL.getURLStreamHandler(URL.java:1142)
        at java.net.URL.<init>(URL.java:599)

       

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              Unassigned Unassigned
              ajithshetty Ajith S
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                Created:
                Updated: