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From Subroto <ssan...@datameer.com>
Subject API to get info for deprecated key
Date Tue, 22 May 2012 07:52:55 GMT

Though this question may relate to Hadoop-Common project but, I faced the concern while working
with MR.
The current version of Hadoop deprecates many keys but, takes care of adding the new keys
to the configuration accordingly.
For the end user only logs are there which indicates the key is deprecated and the message
also suggests the new key to be used.

I was thinking; there should be an API/Utility which could probably provide the new key information
when called with old key.
Using this API the user can judge in runtime to use the old key or new key.
Currently the Configuration provides an API only to check whether a key is deprecated or not
but, doesn't provides a way to get the corresponding new key.

Subroto Sanyal
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