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https://issues.apache.org/jira/browse/HADOOP-10402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14092214#comment-14092214
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Karthik Kambatla commented on HADOOP-10402:
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+1. Checking this in.
> Configuration.getValByRegex doesn't do variable substitution
> ------------------------------------------------------------
>
> Key: HADOOP-10402
> URL: https://issues.apache.org/jira/browse/HADOOP-10402
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.3.0
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Attachments: HADOOP-10402.patch
>
>
> When using Configuration.getValByRegex(...), variables are not resolved.
> For example:
> {code:xml}
> <property>
> <name>bar</name>
> <value>woot</value>
> </property>
> <property>
> <name>foo3</name>
> <value>${bar}</value>
> </property>
> {code}
> If you then try to do something like {{Configuration.getValByRegex(foo.*)}},
> it will return a Map containing "foo3=$\{bar}" instead of "foo3=woot"
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