Hadoop ClassNotFoundException related to MapClass
I was able to fix the problem by declaring a package at the top of my source.
package com.foo.hadoop;I then compiled, created the jar, and explicitly called hadoop with the package prepended to the class name.
hadoop jar QueryTable.jar com.foo.hadoop.QueryTable input outputI understand this is what most people would have done to begin with, though I'd think it'd still work without specifying a package. It's definitely better practice though and it has allowed me to proceed.