Provide a way to load deprecated keys from other sub-projects into configuration
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Key: HADOOP-6245
URL: https://issues.apache.org/jira/browse/HADOOP-6245
Project: Hadoop Common
Issue Type: Bug
Components: conf
Reporter: Hemanth Yamijala
In HADOOP-6105, we provided a method of adding deprecated keys from other
sub-projects like HDFS and Map/Reduce using a key called
hadoop.conf.extra.classes. The expectation was that this key had class names
that will be statically loaded by the Configuration class and the classes could
add deprecated keys in static blocks of their classes. We discovered as in
HADOOP-6243, that the classes added could have side-effects if they, for e.g.
load resources in configuration. To unblock builds, we are disabling this
feature in fixing HADOOP-6243. However, I am opening this JIRA to follow-up on
a fix for the original intention.
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