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https://issues.apache.org/jira/browse/HDFS-3535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13401575#comment-13401575
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Eli Collins commented on HDFS-3535:
-----------------------------------
+1 latest patch looks good
bq. There are a bunch of uses of logAuditEvent that do need to check if audit
logging is enabled before constructing log messages.
Why? Doesn't seem like the arg evaluation has side effects or is expensive but
maybe I'm missing something. Agree this cleanup should be a separate change,
file a jira?
> audit logging should log denied accesses as well as permitted ones
> ------------------------------------------------------------------
>
> Key: HDFS-3535
> URL: https://issues.apache.org/jira/browse/HDFS-3535
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: name-node
> Affects Versions: 2.0.0-alpha
> Reporter: Andy Isaacson
> Assignee: Andy Isaacson
> Attachments: hdfs-3535-1.txt, hdfs-3535-2.txt, hdfs-3535.txt
>
>
> FSNamesystem.java logs an audit log entry when a user successfully accesses
> the filesystem:
> {code}
> logAuditEvent(UserGroupInformation.getLoginUser(),
> Server.getRemoteIp(),
> "concat", Arrays.toString(srcs), target, resultingStat);
> {code}
> but there is no similar log when a user attempts to access the filesystem and
> is denied due to permissions. Competing systems do provide such logging of
> denied access attempts; we should too.
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