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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16982) WebUI "Show Query" tab prints "UNKNOWN" instead of explaining configuration option
Date Sat, 29 Jul 2017 06:15:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106040#comment-16106040
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Lefty Leverenz commented on HIVE-16982:
---------------------------------------

Doc note:  This changes the description of configuration parameter *hive.log.explain.output*,
which is not yet documented in the wiki.  It was introduced in release 1.1.0 by HIVE-8600,
and ought to be documented here:

* [Configuration Properties -- Query and DDL Execution | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution]
* [Getting Started -- Logs | https://cwiki.apache.org/confluence/display/Hive/GettingStarted#GettingStarted-ErrorLogs]
* [Language Manual -- Explain | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Explain]

Configuration Properties can give just the new description, since the behavior isn't changing.

Added a TODOC3.0 label.

> WebUI "Show Query" tab prints "UNKNOWN" instead of explaining configuration option
> ----------------------------------------------------------------------------------
>
>                 Key: HIVE-16982
>                 URL: https://issues.apache.org/jira/browse/HIVE-16982
>             Project: Hive
>          Issue Type: Bug
>          Components: Configuration, Web UI
>            Reporter: Karen Coppage
>            Assignee: Karen Coppage
>            Priority: Minor
>              Labels: TODOC3.0, newbie, patch
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16982.3.patch
>
>
> In the Hive WebUI / Drilldown: the Show Query tab always displays "UNKNOWN."
> If the user wants to see the query plan here, they should set configuration hive.log.explain.output
to true. The user should be made aware of this option:
> 1) in WebUI / Drilldown / Show Query and
> 2) in HiveConf.java, line 2232.
> This configuration's description reads:
> "Whether to log explain output for every query
> When enabled, will log EXPLAIN EXTENDED output for the query at INFO log4j log level."
> this should be added:
> "...and in the WebUI / Show Query tab."



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