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https://issues.apache.org/jira/browse/HADOOP-6978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12931750#action_12931750
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Todd Lipcon commented on HADOOP-6978:
-------------------------------------
Hey Devaraj, That seems fairly reasonable (adding a cache here). Since this is
a blocker security bug for 0.22, though, maybe we should get this in and then
add the cache as a follow-on? If you think this is un-deployable without the
cache we may as well do it now.
> Add JNI support for secure IO operations
> ----------------------------------------
>
> Key: HADOOP-6978
> URL: https://issues.apache.org/jira/browse/HADOOP-6978
> Project: Hadoop Common
> Issue Type: New Feature
> Components: io, native, security
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Fix For: 0.22.0
>
> Attachments: hadoop-6978.txt, hadoop-6978.txt
>
>
> In support of MAPREDUCE-2096, we need to add some JNI functionality. In
> particular, we need the ability to use fstat() on an open file stream, and to
> use open() with O_EXCL, O_NOFOLLOW, and without O_CREAT.
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