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https://issues.apache.org/jira/browse/HADOOP-10941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoy Antony updated HADOOP-10941:
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Attachment: HADOOP-10941.patch
Attaching a patch which does the following:
# _DefaultImpersonationProvider_ checks whether user is null. If so, throws
_IllegalArgumentException_. Added a test case to verify the case.
# _MachineList_ checks whether remote address is null. If so, throws
_IllegalArgumentException_ . Added a test case to verify the case. Null check
is performed after allowing wild cards. (specified via *)
# _DefaultImpersonationProvider_ uses _MachineList_. Added a test case to
verify whether _DefaultImpersonationProvider_ handles null remote address
properly.
> Proxy user verification NPEs if remote host is unresolvable
> -----------------------------------------------------------
>
> Key: HADOOP-10941
> URL: https://issues.apache.org/jira/browse/HADOOP-10941
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc, security
> Affects Versions: 3.0.0, 2.5.0
> Reporter: Daryn Sharp
> Assignee: Benoy Antony
> Priority: Critical
> Attachments: HADOOP-10941.patch
>
>
> A null is passed to the impersonation providers for the remote address if it
> is unresolvable. {{DefaultImpersationProvider}} will NPE, ipc will close the
> connection immediately (correct behavior for such unexpected exceptions),
> client fails on {{EOFException}}.
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