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From "Shubhangi Garg (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4552) For Hadoop 2.0.3; setting CLASSPATH=$(hadoop classpath) does not work, as opposed to 1.x versions
Date Tue, 05 Mar 2013 08:00:19 GMT
Shubhangi Garg created HDFS-4552:
------------------------------------

             Summary: For Hadoop 2.0.3; setting CLASSPATH=$(hadoop classpath) does not work,
as opposed to 1.x versions
                 Key: HDFS-4552
                 URL: https://issues.apache.org/jira/browse/HDFS-4552
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: libhdfs
    Affects Versions: 2.0.3-alpha
         Environment: Ubuntu 12.04 32 bit, java version "1.7.0_03"
c++ application
            Reporter: Shubhangi Garg


I am writing an application in c++, which uses API provided by libhdfs to manipulate Hadoop
DFS.
I could run the application with 1.0.4 and 1.1.1; setting classpath equal to 
$(hadoop classpath).

For Hadoop 2.0.3; setting CLASSPATH=$(hadoop classpath) does not load necessary classes required
forlibhdfs; as opposed to 1.x versions; giving the following error:

loadFileSystems error:
(unable to get stack trace for java.lang.NoClassDefFoundError exception: ExceptionUtils::getStackTrace
error.)
hdfsBuilderConnect(forceNewInstance=0, nn=default, port=0, kerbTicketCachePath=(NULL), userName=(NULL))
error:
(unable to get stack trace for java.lang.NoClassDefFoundError exception: ExceptionUtils::getStackTrace
error.)


I tried loading the jar files with their full path specified (as opposed to wildcard characters
used in the classpath); and the application runs, but gives the following warning:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
13/03/04 11:17:23 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your
platform... using builtin-java classes where applicable


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