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https://issues.apache.org/jira/browse/PIG-3794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13931160#comment-13931160
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Eric Hanson commented on PIG-3794:
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What version of Azure HDINSIGHT installation were you looking at when you saw
HCAT_HOME defined?
> pig -useHCatalog fails using pig command line interface on HDInsight
> --------------------------------------------------------------------
>
> Key: PIG-3794
> URL: https://issues.apache.org/jira/browse/PIG-3794
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.11, 0.12.0, 0.13.0
> Environment: Windows Azure HDINSIGHT
> c:\apps\dist\pig-0.11.0.1.3.2.0-05
> Reporter: Eric Hanson
> Assignee: Eric Hanson
> Fix For: 0.13.0
>
> Attachments: PIG-3794.01.patch, PIG-3794.02.patch, PIG-3794.03.patch
>
>
> When you connect to an HDP 1.3 version HDINSIGHT cluster with remote desktop,
> if you try this:
> c:\apps\dist\pig-0.11.0.1.3.2.0-05>bin\pig -useHCatalog
> you get this:
> "HCAT_HOME should be defined"
> but you should not get an error.
> It appears that pig.cmd should use "HCATALOG_HOME" instead of "HCAT_HOME".
> The same problem exists on the 1.3 one-box installation for Windows. A quick
> look at the source code indicates it is still a problem on trunk.
>
> Equivalent Monarch Pig JIRA is PIG-125
> In addition, if you set hive.metastore.uris to '', this is supposed to create
> an embedded metastore instead of going to the metastore service. This fails
> on Azure HDINSIGHT and Windows because of missing datanucleus and sqljdbc4
> jars. This is covered in Monarch Pig JIRA Pig-126.
> Finally, if you submit a pig job from WebHCat, due to argument quoting for
> windows, -useHCatalog comes in as "-useHCatalog" into pig.cmd. This causes
> -useHCatalog to never work on Windows from WebHCat.
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