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Date: Thu, 15 Mar 2012 15:07:38 +0000 (UTC)
From: "Robert Joseph Evans (Created) (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Created] (HADOOP-8172) Configuration no longer sets all
 keys in a deprecated key list.
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Configuration no longer sets all keys in a deprecated key list.
---------------------------------------------------------------

                 Key: HADOOP-8172
                 URL: https://issues.apache.org/jira/browse/HADOOP-8172
             Project: Hadoop Common
          Issue Type: Bug
          Components: conf
    Affects Versions: 0.24.0, 0.23.3
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans
            Priority: Blocker


I did not look at the patch for HADOOP-8167 previously, but I did in response to a recent test failure. The patch appears to have changed the following code (I am just paraphrasing the code)

{code}
if(!deprecated(key)) {
  set(key, value);
} else {
  for(String newKey: depricatedKeyMap.get(key)) {
    set(newKey, value);
  }
}
{code}

to be 

{code}
set(key, value);
if(depricatedKeyMap.contains(key)) {
   set(deprecatedKeyMap.get(key)[0], value);
} else if(reverseKeyMap.contains(key)) {
   set(reverseKeyMap.get(key), value);
}
{code}

If a key is deprecated and is mapped to more then one new key value only the first one in the list will be set, where as previously all of them would be set.

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