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I got into trouble when I ran convert-emp and Hue's Pig interface complained for me to "Please initialize HIVE_HOME". You may not run into this problem yourself as the fix (which I actually got help from Hortonworks Support on as seen in Case_00004924.pdf) was simply to add add the Hive Client to all nodes within the cluster (this will be fixed in HDP 2.1). As the ticket said, that would be painful if I had to do for tons of nodes, especially with the version of Ambari I'm using that does not yet allow you to do operations like this one many machines at a time. That said, I just needed to add it to three workers via the Ambari feature show below.
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Truthfully, on my little virtualized cluster this takes a few minutes for each host. It will be nice when stuff like this can happen in parallel. Hey... just another reason to add "Clients" to all nodes in the cluster!
To test it All in all out, I went back to the how do i load a fixed-width formatted file into hive? (with a little help from pig) posting and was able to make this work this time in Pig. Phew!!
</Debugging Section>
There you have it – a bit more arduous than it ought to be, but now you have Hue running in your very own virtualized cluster!!