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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1399) Allow users to annotate an application with multiple tags
Date Mon, 02 Dec 2013 19:58:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-1399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13836847#comment-13836847
] 

Zhijie Shen commented on YARN-1399:
-----------------------------------

I agree we should have the limits for the number of tags and the length of them. Either they
are configured or hardcoded, IMHO,  we should expose the information to users. For example,
if the user input a tag which is too long to be accepted, RM should return with a suitable
exception.

In addition, I think It's also good to regulate the charset that the tag can use, avoid users
to input some strange characters. Moreover, in general, IMHO, user name, queue name, application
name and application type should be regulated as well. Thoughts.

> 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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