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https://issues.apache.org/jira/browse/YARN-1399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839213#comment-13839213
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Zhijie Shen commented on YARN-1399:
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bq. 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?
According to my previous experience, usually such kind of html injection is not
allowed. The worse case is that users try to inject javascript, which is more
dangerous.
> 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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