[jira] [Commented] (PIG-3880) After compiling trunk, I am seeing ClassLoaderObjectInputStream ClassNotFoundException.

["Josh Elser (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-3880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969808#comment-13969808 ] 

Josh Elser commented on PIG-3880:
---------------------------------

What version of Hadoop are you using, [~medined]? I recall situations on other projects where the dependency management expected certain artifacts to be provided by hadoop when the user's version didn't actually provide that jar. I believe commons-io was one of these artifacts that I was bit by too.

This seems to be a plausible explanation to what you're seeing. The jarwithhadoop would contain the dependencies and thus you wouldn't have the issues if your local hadoop install was missing necessary jars.

> After compiling trunk, I am seeing ClassLoaderObjectInputStream ClassNotFoundException.
> ---------------------------------------------------------------------------------------
>
>                 Key: PIG-3880
>                 URL: https://issues.apache.org/jira/browse/PIG-3880
>             Project: Pig
>          Issue Type: Bug
>          Components: grunt
>    Affects Versions: 0.13.0
>            Reporter: David Medinets
>
> I pulled trunk from subversion using the following commands:
> mkdir pig
> cd pig
> svn co http://svn.apache.org/repos/asf/pig/trunk
> cd trunk
> ant
> export PATH=$PATH:$HOME/pig/trunk/bin
> export ACCUMULO_HOME=/opt/accumulo
> export HADOOP_HOME=/opt/hadoop
> export PIG_HOME=$HOME/pig/trunk
> export PIG_CLASSPATH="$HOME/pig/trunk/build/ivy/lib/Pig/*"
> export PIG_CLASSPATH="$ACCUMULO_HOME/lib/*:$PIG_CLASSPATH"
> cd ~
> pig
> Then I ran into this error:
> java.lang.NoClassDefFoundError: org/apache/commons/io/input/ClassLoaderObjectInputStream
> 	at org.apache.pig.Main.run(Main.java:399)
> When I change PIG_JAR to use the fat jar, I was able to run the pig command without getting the exception.



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