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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1399) Allow users to annotate an application with multiple tags
Date Wed, 04 Dec 2013 18:52:36 GMT

    [ https://issues.apache.org/jira/browse/YARN-1399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839198#comment-13839198
] 

Karthik Kambatla commented on YARN-1399:
----------------------------------------

bq. And IMHO, the cheapest way may be converting the string to one case when accepting it
Agree. Can store it internally in lowercase, and add documentation that the filtering is not
case-sensitive.

bq. I've no immediate idea about what the harm will be, and reasonable users will seldom use
these special chars. However, this constraint is what I feel when I write the tags for my
online album, bookmarks and etc. One possible problem I can foresee is that users can write
"<h1>MapReduce</h1>" to force the display on the web page.
I am tempted to accept all unicode strings to begin with, and add restrictions if we really
need them. In this particular case of <h1>MapReduce</h1>, I think we should show
the user what he wants to see - it might not look good or consistent with rest of the page,
but that is what the user wanted. No?

> Allow users to annotate an application with multiple tags
> ---------------------------------------------------------
>
>                 Key: YARN-1399
>                 URL: https://issues.apache.org/jira/browse/YARN-1399
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>
> Nowadays, when submitting an application, users can fill the applicationType field to
facilitate searching it later. IMHO, it's good to accept multiple tags to allow users to describe
their applications in multiple aspects, including the application type. Then, searching by
tags may be more efficient for users to reach their desired application collection. It's pretty
much like the tag system of online photo/video/music and etc.



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