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https://issues.apache.org/jira/browse/HADOOP-1307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12492770
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Michael Bieniosek commented on HADOOP-1307:
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I'd rather see HADOOP-785 implemented first, since that is a logical
separation, while this is developers guessing which configurable variables are
more important.
> Documentation & classification of various configuration knobs
> -------------------------------------------------------------
>
> Key: HADOOP-1307
> URL: https://issues.apache.org/jira/browse/HADOOP-1307
> Project: Hadoop
> Issue Type: Wish
> Components: documentation
> Reporter: Arun C Murthy
>
> Given the ever-increasing number of configuration knobs for both dfs and
> mapred, it would be very useful in the long run to start and maintain
> up-to-date information (on the hadoop-wiki?) for these. While we are at it,
> it could be well worth the time to classify each as USER (must be overridden
> by user e.g. mapred.input/output.dir), BEGINNER, INTERMEDIATE, EXPERT (see
> HADOOP-1304) so as to clearly demarcate them.
> Thoughts?
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