Jason Lowe created HADOOP-9344:
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Summary: Configuration.writeXml can warn about deprecated
properties user did not set
Key: HADOOP-9344
URL: https://issues.apache.org/jira/browse/HADOOP-9344
Project: Hadoop Common
Issue Type: Bug
Components: conf
Affects Versions: 0.23.5, 2.0.3-alpha
Reporter: Jason Lowe
When the configuration is serialized it can emit warnings about deprecated
properties that the user did not specify. Converting the config to XML causes
all the properties in the config to be processed for deprecation, and after
HADOOP-8167 setting a proper config property also causes the deprecated forms
to be set. Processing all the keys in the config for deprecation therefore can
trigger warnings for keys that were never specified by the user, leaving users
confused as to how their code could be triggering these warnings.
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