Sangjin Lee created HADOOP-9854:
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Summary: Configuration.set() may be called before all the
deprecated keys are registered, causing inconsistent state
Key: HADOOP-9854
URL: https://issues.apache.org/jira/browse/HADOOP-9854
Project: Hadoop Common
Issue Type: Bug
Components: conf
Affects Versions: 2.0.5-alpha
Reporter: Sangjin Lee
Currently deprecated keys are registered at various times. Some are registered
when the Configuration class itself is initialized, but the vast majority are
registered when the JobConf class is initialized.
Therefore, it is entirely possible (and does happen) that Configuration.set()
is called for a key before its deprecation mapping is registered, thus leaving
the internal state of Configuration in an inconsistent state.
We actually had this problem occur in real life, causing the set value not to
be recognized.
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