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Vinod Kumar Vavilapalli commented on MAPREDUCE-4052: ---------------------------------------------------- Patch looks fine overall, some review comments on the MR part of the patch - TestMapReduceChildJVM.envVar can be removed. - MAPREDUCE_CROSS_PLATFORM_APP_SUBMISSION -> MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, "mapreduce.cross-platform.app-submission" -> "mapreduce.app-submission.cross-platform". Similarly the name of the default constant too. - The default for the above config should be false for compatibility - Given that, fix the description of mapreduce.application.classpath in mapred-default.xml - Add the new config in mapred-default.xml - Cannot rename MRJobConfig.DEFAULT_MAPREDUCE_APPLICATION_CLASSPATH for compatibility - MRJobConfig.DEFAULT_MAPREDUCE_APPLICATION_CLASSPATH_CROSS_ENV and DEFAULT_MAPREDUCE_APPLICATION_CLASSPATH_CLIENT_ENV also to be renamed in line with the YARN constant renames. - Fix their javadoc too to refer to cross-platform. - There are still some usages of yarn.util.Apps. They are not intended? > Windows eclipse cannot submit job from Windows client to Linux/Unix Hadoop > cluster. > ----------------------------------------------------------------------------------- > > Key: MAPREDUCE-4052 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4052 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission > Affects Versions: 0.23.1, 2.2.0 > Environment: client on the Windows, the the cluster on the suse > Reporter: xieguiming > Assignee: Jian He > Attachments: MAPREDUCE-4052-0.patch, MAPREDUCE-4052.1.patch, > MAPREDUCE-4052.2.patch, MAPREDUCE-4052.3.patch, MAPREDUCE-4052.4.patch, > MAPREDUCE-4052.patch > > > when I use the eclipse on the windows to submit the job. and the > applicationmaster throw the exception: > Exception in thread "main" java.lang.NoClassDefFoundError: > org/apache/hadoop/mapreduce/v2/app/MRAppMaster > Caused by: java.lang.ClassNotFoundException: > org.apache.hadoop.mapreduce.v2.app.MRAppMaster > at java.net.URLClassLoader$1.run(URLClassLoader.java:202) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:190) > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > at java.lang.ClassLoader.loadClass(ClassLoader.java:248) > Could not find the main class: > org.apache.hadoop.mapreduce.v2.app.MRAppMaster. Program will exit. > The reasion is : > class Apps addToEnvironment function, use the > private static final String SYSTEM_PATH_SEPARATOR = > System.getProperty("path.separator"); > and will result the MRApplicationMaster classpath use the ";" separator. > I suggest that nodemanger do the replace. -- This message was sent by Atlassian JIRA (v6.2#6252)