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From "Jonathan Eagles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14213) Move Configuration runtime check for hadoop-site.xml to initialization
Date Wed, 22 Mar 2017 17:53:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15936790#comment-15936790
] 

Jonathan Eagles commented on HADOOP-14213:
------------------------------------------

This patch moves the decision of using hadoop-site.xml as a default resource to the static
initialization block in Configuration. This patch maintains the previous precedence ordering
of the core-default.xml, core-site.xml, and hadoop-site.xml.

> 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
>         Attachments: HADOOP-14213.1.patch
>
>
> 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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