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https://issues.apache.org/jira/browse/HIVE-5627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13818585#comment-13818585
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Lefty Leverenz commented on HIVE-5627:
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Good catch. Got it right in 'arg' description but wrong in 'usehcatalog'
description. Fixed now:
[https://cwiki.apache.org/confluence/display/Hive/WebHCat+Reference+Pig].
bq. *arg* Set a program argument. If -useHCatalog is included, then
*usehcatalog* is interpreted as "true" (Hive 0.13.0 and later).
bq. *usehcatalog* Specify that the submitted job uses HCatalog and therefore
needs to access the metastore, which requires additional steps for WebHCat to
perform in a secure cluster. (See HIVE-5133.) This parameter will be introduced
in Hive 0.13.0. It can also be set to "true" by including -useHCatalog in the
*arg* parameter. ...
(When Hive 0.13.0 is released, I intend to change "will be introduced" to "is
introduced" for the pig and mapreduce/jar calls -- it's on the TODO list.)
> Document 'usehcatalog' parameter on WebHCat calls
> -------------------------------------------------
>
> Key: HIVE-5627
> URL: https://issues.apache.org/jira/browse/HIVE-5627
> Project: Hive
> Issue Type: Sub-task
> Components: Documentation, WebHCat
> Affects Versions: 0.12.0
> Reporter: Eugene Koifman
> Assignee: Lefty Leverenz
> Fix For: 0.13.0
>
>
> The following REST calls in WebHCat:
> 1. mapreduce/jar
> 2. pig
> now support an additional parameter 'usehcatalog'. This is a mechanism for
> the caller to tell WebHCat that the submitted job uses HCat, and thus needs
> to access the metastore, which requires additional steps for WebHCat to
> perform in a secure cluster.
> The JavaDoc on corresponding methods in
> org.apache.hive.hcatalog.templeton.Server describe this parameter.
> Additionally, if templeton.hive.archive, templeton.hive.home and
> templeton.hcat.home are defined in webhcat-site.xml (documented in
> webhcat-default.xml) then WebHCat will ship the Hive tar to the target node
> where the job actually runs. This means that Hive doesn't need to be
> installed on every node in the Hadoop cluster. (This part was added in
> HIVE-5547). This is independent of security, but improves manageability.
> This should be added to the sections in
> https://cwiki.apache.org/confluence/display/Hive/WebHCat+Reference that
> correspond to these methods.
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