[HDFS-4552] For Hadoop 2.0.3; setting CLASSPATH=$(hadoop classpath) does not work, as opposed to 1.x versions

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.0.3-alpha
• Component/s: libhdfs

Environment

Ubuntu 12.04 32 bit, java version "1.7.0_03"
c++ application

• Assignee: Unassigned
• Reporter: Shubhangi Garg
• Created: 05/Mar/13 07:59
• Updated: 02/Dec/14 18:17
• Resolved: 02/Dec/14 18:17

Description

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

Issue Links

• duplicates: HADOOP-10903 Enhance hadoop classpath command to expand wildcards or write classpath into jar manifest.