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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15007) Stabilize and document Configuration <tag> element
Date Fri, 16 Feb 2018 01:33:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16366512#comment-16366512
] 

Anu Engineer commented on HADOOP-15007:
---------------------------------------

[~ajayydv] Overall it looks very good. Some minor comments/questions.
# Since we have the hadoop.system.tags in core-default.xml, do we need {{public static final
String HADOOP_SYSTEM_TAGS_DEFAULT =}} in {{CommonConfigurationKeysPublic.java}}
# Not sure why we callthe {{removeUndeclaredTags}}, if we don't do that we get custom tag
support right? Am I missing something here?

> 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: 3.2.0
>            Reporter: Steve Loughran
>            Assignee: Ajay Kumar
>            Priority: Blocker
>         Attachments: HADOOP-15007.000.patch, HADOOP-15007.001.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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