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From "Suraj Acharya (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13526) Add detailed logging in KMS log for the authentication failure of proxy user
Date Mon, 22 Aug 2016 20:24:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15431543#comment-15431543
] 

Suraj Acharya commented on HADOOP-13526:
----------------------------------------

@anu i tried to emulate the model present in {{AuthenticationFilter.java}}.
[Here|https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/AuthenticationFilter.java#L567-L571]
we can see that the debug level prints to Warn. I was not sure but I maintained the consistency
so that the user is not confused in the behaviour pattern. 

> Add detailed logging in KMS log for the authentication failure of proxy user
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-13526
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13526
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: kms
>         Environment: RHEL
>            Reporter: Suraj Acharya
>            Assignee: Suraj Acharya
>            Priority: Minor
>         Attachments: HADOOP-13526.patch
>
>
> Problem :
> User A was not able to write a file to HDFS Encryption Zone. It was resolved by adding
proxy user A in kms-site.xml
> However, the logs showed :
> {code}2016-08-10 19:32:08,954 DEBUG org.apache.hadoop.security.authentication.server.AuthenticationFilter:
Request https://vm.example.com:16000/kms/v1/keyversion/aMxsSSKmMEzINTIrKURpFJgHnZxiOvsT9L1nMpbUoGu/_eek?eek_op=decrypt&doAs=userb&user.name=usera
user [usera] authenticated{code}
> Possible Solution :
> So the message which says the user was successfully authenticated comes from {{AuthenticationFilter.java}}.
However, when the filter on {{DelegationTokenAuthenticationFilter}} is called it hits an exception
there and there is no log message there. This leads to the confusion that we have had a success
while the exception happens in the next class.



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