Jim Brennan created HADOOP-15357:
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Summary: Configuration.getPropsWithPrefix no longer does variable
substitution
Key: HADOOP-15357
URL: https://issues.apache.org/jira/browse/HADOOP-15357
Project: Hadoop Common
Issue Type: Bug
Reporter: Jim Brennan
Before [HADOOP-13556], Configuration.getPropsWithPrefix() used the
Configuration.get() method to get the value of the variables. After
[HADOOP-13556], it now uses props.getProperty().
The difference is that Configuration.get() does deprecation handling and more
importantly variable substitution on the value. So if a property has a
variable specified with ${variable_name}, it will no longer be expanded when
retrieved via getPropsWithPrefix().
Was this change in behavior intentional? I am using this function in the fix
for [MAPREDUCE-7069], but we do want variable expansion to happen.
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