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https://issues.apache.org/jira/browse/HADOOP-14213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15936745#comment-15936745
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Allen Wittenauer commented on HADOOP-14213:
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bq. It has been long deprecated and is not present in most if not nearly all
installations.
We just need to be cognizant of the fact that...
bq. remove hadoop-site.xml as a default resource
... is an incompatible change which couldn't go into branch-2.
(FWIW, I'll raise my hand as one of the folks who still uses hadoop-site.xml on
occasion for non-prod installs since it's easier than dealing with the complete
mess that happened after the project split.)
> Move Configuration runtime check for hadoop-site.xml to initialization
> ----------------------------------------------------------------------
>
> Key: HADOOP-14213
> URL: https://issues.apache.org/jira/browse/HADOOP-14213
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Jonathan Eagles
> Assignee: Jonathan Eagles
>
> Each Configuration object that loads defaults checks for hadoop-site.xml. It
> has been long deprecated and is not present in most if not nearly all
> installations. The getResource check for hadoop-site.xml has to check the
> entire classpath since it is not found. This jira proposes to 1) either
> remove hadoop-site.xml as a default resource or 2) move the check to static
> initialization of the class so the performance hit is only taken once.
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