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https://issues.apache.org/jira/browse/AMBARI-3884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleg Nechiporenko updated AMBARI-3884:
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Attachment: AMBARI-3884.patch
> Validate string-type dynamic configs in YARN and MR2
> ----------------------------------------------------
>
> Key: AMBARI-3884
> URL: https://issues.apache.org/jira/browse/AMBARI-3884
> Project: Ambari
> Issue Type: Bug
> Components: client
> Affects Versions: 1.4.1
> Reporter: Oleg Nechiporenko
> Assignee: Oleg Nechiporenko
> Fix For: 1.5.0
>
> Attachments: AMBARI-3884.patch
>
>
> We have configs where portions of it are dynamically calculated:
> * mapreduce.map.java.opts
> * mapreduce.reduce.java.opts
> * yarn.app.mapreduce.am.command-opts
> For example we calculate "1024" in the ultimate value of "-Xmx1024m". When
> the user messes it up (say "-Xmx100m"), we do not validate correctly. The
> validators for the above properties need to be smarter to show warnings.
> The validators have to be robust so that they can tolerate very complex
> strings and error cases.
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