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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5194) Avoid adding yarn-site to all Configuration instances created by the JVM
Date Thu, 02 Jun 2016 06:47:59 GMT
Siddharth Seth created YARN-5194:
------------------------------------

             Summary: Avoid adding yarn-site to all Configuration instances created by the
JVM
                 Key: YARN-5194
                 URL: https://issues.apache.org/jira/browse/YARN-5194
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Siddharth Seth


{code}
static {
    addDeprecatedKeys();
    Configuration.addDefaultResource(YARN_DEFAULT_CONFIGURATION_FILE);
    Configuration.addDefaultResource(YARN_SITE_CONFIGURATION_FILE);
  }
{code}

This puts the contents of yarn-default and yarn-site into every configuration instance created
in the VM after YarnConfiguration has been initialized.

This should be changed to a local addResource for the specific YarnConfiguration instance,
instead of polluting every Configuration instance.

Incompatible change. Have set the target version to 3.x. 

The same applies to HdfsConfiguration (hdfs-site.xml), and Configuration (core-site.xml etc).
core-site may be worth including everywhere, however it would be better to expect users to
explicitly add the relevant resources.



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