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https://issues.apache.org/jira/browse/HADOOP-9445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618055#comment-13618055
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Steve Loughran commented on HADOOP-9445:
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given this is would be command line entry point with the ability to provide a
return value for scripts
# add ability to assert that a named property has a specific value, return an
error code if not
> add an entrypoint to diagnose conf.xml problems
> -----------------------------------------------
>
> Key: HADOOP-9445
> URL: https://issues.apache.org/jira/browse/HADOOP-9445
> Project: Hadoop Common
> Issue Type: New Feature
> Components: tools
> Reporter: Steve Loughran
> Priority: Minor
>
> Following on from HADOOP-9044, add an entry point to aid debugging
> configuration issues, with the use cases being
> # list the locations of the XML files being loaded
> # list the final configuration of a daemon
> # list the final value of a single property
> # provide some provenance on a property value -where did it come from?
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