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https://issues.apache.org/jira/browse/HADOOP-12389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14740387#comment-14740387
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Masatake Iwasaki commented on HADOOP-12389:
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bq. I hit it several times while playing around with WebHDFS on an unsecure
cluster.
If {{ProxyUsers#authorize}} is called when it should not be, it is a bug and
should be fixed rather than changing authorization scheme.
> allow self-impersonation
> ------------------------
>
> Key: HADOOP-12389
> URL: https://issues.apache.org/jira/browse/HADOOP-12389
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 3.0.0
> Reporter: Allen Wittenauer
>
> This is kind of dumb:
> org.apache.hadoop.security.authorize.AuthorizationException: User: aw is not
> allowed to impersonate aw
> Users should be able to impersonate themselves in secure and non-secure cases
> automatically, for free.
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