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https://issues.apache.org/jira/browse/HADOOP-7947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14245997#comment-14245997
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Allen Wittenauer commented on HADOOP-7947:
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It'd be trivial to add a sub-command that does the analysis rather than doing
it on very run.
hadoop conftest (optional list of files, otherwise default to
HADOOP_CONF_DIR/*xml)
> Validate XMLs if a relevant tool is available, when using scripts
> -----------------------------------------------------------------
>
> Key: HADOOP-7947
> URL: https://issues.apache.org/jira/browse/HADOOP-7947
> Project: Hadoop Common
> Issue Type: Wish
> Components: scripts
> Affects Versions: 0.24.0
> Reporter: Harsh J
> Labels: newbie
>
> Given that we are locked down to using only XML for configuration and most of
> the administrators need to manage it by themselves (unless a tool that
> manages for you is used), it would be good to also validate the provided
> config XML (*-site.xml) files with a tool like {{xmllint}} or maybe Xerces
> somehow, when running a command or (at least) when starting up daemons.
> We should use this only if a relevant tool is available, and optionally be
> silent if the env. requests.
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