Kousuke Saruta created HADOOP-9668:
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Summary: Configuration#iterator method should interpret variables
in a property as well as Configuration#get method
Key: HADOOP-9668
URL: https://issues.apache.org/jira/browse/HADOOP-9668
Project: Hadoop Common
Issue Type: Bug
Components: conf
Affects Versions: 2.1.0-beta, 1.2.1
Reporter: Kousuke Saruta
Priority: Minor
o.a.h.conf.Configuration#get method interpret variables in a property in
*-site.xml but Configuration#iterator method don't.
For example, when a property "user.name" is set to "hadoop" and another
property "hadoop.tmp.dir" is set to "/tmp/${user.name}", Configuration#get
interpret "hadoop.tmp.dir" as "/tmp/hadoop" but Configuration#iterator don't
interpret.
I think Configuration#iterator should interpret variables or if there are some
reasons, it should be documented that Configuration#iterator don't interpret
variables.
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