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https://issues.apache.org/jira/browse/HADOOP-14038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905556#comment-15905556
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John Zhuge commented on HADOOP-14038:
-------------------------------------

[~aw], [[email protected]], and [~cnauroth], Is there any way to deprecate 
properties with dynamic names, e.g. {{dfs.adls.<hostname>.hostname}}?

Other than checking both old and new properties in code:
{code}
  value = conf.get(newProp);
  if (value == null) {
    value = conf.get(oldProp);
  }
{code}

> Rename ADLS credential properties
> ---------------------------------
>
>                 Key: HADOOP-14038
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14038
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/adl
>    Affects Versions: 3.0.0-alpha3
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Minor
>         Attachments: HADOOP-14038.001.patch, HADOOP-14038.002.patch, 
> HADOOP-14038.003.patch, HADOOP-14038.004.patch, HADOOP-14038.005.patch
>
>
> Add ADLS credential configuration properties to {{core-default.xml}}. 
> Set/document the default value for 
> {{dfs.adls.oauth2.access.token.provider.type}} to {{ClientCredential}}.
> Fix {{AdlFileSystem#getAccessTokenProvider}} which implies the provider type 
> is {{Custom}}.
> Fix several unit tests that set {{dfs.adls.oauth2.access.token.provider}} but 
> does not set {{dfs.adls.oauth2.access.token.provider.type}}.



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