java.util.ConcurrentModificationException

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Solutions on the web4703

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  • via Coderanch by Joe Jose, 6 months ago
    This exception has no message.
  • via Coderanch by Em Aiy, 8 months ago
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  • Stack trace

    • java.util.ConcurrentModificationException at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966) at java.util.LinkedList$ListItr.next(LinkedList.java:888) at org.apache.hadoop.yarn.ContainerLogAppender.close(ContainerLogAppender.java:81) at org.apache.log4j.helpers.AppenderAttachableImpl.removeAllAppenders(AppenderAttachableImpl.java:141) at org.apache.log4j.Category.removeAllAppenders(Category.java:891) at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:759) at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:648) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:514) at org.apache.log4j.PropertyConfigurator.configure(PropertyConfigurator.java:440) at org.apache.pig.Main.configureLog4J(Main.java:740) at org.apache.pig.Main.run(Main.java:384) at org.apache.pig.PigRunner.run(PigRunner.java:49) at org.apache.oozie.action.hadoop.PigMain.runPigJob(PigMain.java:283) at org.apache.oozie.action.hadoop.PigMain.run(PigMain.java:223) at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:37) at org.apache.oozie.action.hadoop.PigMain.main(PigMain.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:226) at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:430) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)

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