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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3680) Allows customized audit logging in HDFS FSNamesystem
Date Tue, 02 Oct 2012 01:02:08 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467379#comment-13467379
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Aaron T. Myers commented on HDFS-3680:
--------------------------------------

Sorry for letting this sit for so long.

The latest patch looks pretty good to me. One small comment: instead of passing the result
of UserGroupInformation#getUserName, I suggest you pass UserGroupInformation#toString, which
has some extra salient information for audit purposes. You should probably also change the
formal parameter name to something like "userString" instead of "userName", to indicate that
it might contain more information than just the username.

+1 once this is addressed.
                
> Allows customized audit logging in HDFS FSNamesystem
> ----------------------------------------------------
>
>                 Key: HDFS-3680
>                 URL: https://issues.apache.org/jira/browse/HDFS-3680
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 2.0.0-alpha
>            Reporter: Marcelo Vanzin
>            Assignee: Marcelo Vanzin
>            Priority: Minor
>         Attachments: accesslogger-v1.patch, accesslogger-v2.patch, hdfs-3680-v3.patch,
hdfs-3680-v4.patch, hdfs-3680-v5.patch, hdfs-3680-v6.patch, hdfs-3680-v7.patch
>
>
> Currently, FSNamesystem writes audit logs to a logger; that makes it easy to get audit
logs in some log file. But it makes it kinda tricky to store audit logs in any other way (let's
say a database), because it would require the code to implement a log appender (and thus know
what logging system is actually being used underneath the fa├žade), and parse the textual
log message generated by FSNamesystem.
> I'm attaching a patch that introduces a cleaner interface for this use case.

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