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From "Ajay Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15007) Stabilize and document Configuration <tag> element
Date Mon, 05 Feb 2018 21:06:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16352934#comment-16352934
] 

Ajay Kumar commented on HADOOP-15007:
-------------------------------------

[~stevel@apache.org],[~anu],[~elek] thanks for valuable feedback. Adding first pass of patch
with following changes:
* Replaced Enums with a common interface with Strings
* Logging moved at trace level. This should handle [~elek] case as well.( i.e "I wouldn't
like to see any warnings during my cluster startup as there are no problems with my cluster
even if the tags are misspelled. The warning should be displayed during the build time for
he developers/reviewers." )
* Added test case for invalid tags
* Updated javadocs in Configuration for tag functionality.

> Stabilize and document Configuration <tag> element
> --------------------------------------------------
>
>                 Key: HADOOP-15007
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15007
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>    Affects Versions: 3.1.0
>            Reporter: Steve Loughran
>            Assignee: Ajay Kumar
>            Priority: Blocker
>         Attachments: HADOOP-15007.000.patch
>
>
> HDFS-12350 (moved to HADOOP-15005). Adds the ability to tag properties with a <tag>
value.
> We need to make sure that this feature is backwards compatible & usable in production.
That's docs, testing, marshalling etc.



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