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https://issues.apache.org/jira/browse/MAPREDUCE-4417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419435#comment-13419435
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Todd Lipcon commented on MAPREDUCE-4417:
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- The {{AtomicBoolean running}} doesn't need to be an atomic boolean, since
it's already volatile. You can just use a volatile boolean here.
- in {{loadTrustManager}}, you need to get {{file.lastModified}} before you
even open the {{FileInputStream}}. Otherwise if the file is replaced in between
opening the stream and you getting the mtime, you'll read the old version of
the file but think you read the new one (assuming an atomic
rename-over-old-file replacement)
Otherwise looks good to me.
> add support for encrypted shuffle
> ---------------------------------
>
> Key: MAPREDUCE-4417
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4417
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: mrv2, security
> Affects Versions: 2.0.0-alpha
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
> Fix For: 2.1.0-alpha
>
> Attachments: MAPREDUCE-4417.patch, MAPREDUCE-4417.patch,
> MAPREDUCE-4417.patch, MAPREDUCE-4417.patch, MAPREDUCE-4417.patch,
> MAPREDUCE-4417.patch, MAPREDUCE-4417.patch, MAPREDUCE-4417.patch,
> MAPREDUCE-4417.patch, MAPREDUCE-4417.patch, MAPREDUCE-4417.patch,
> MAPREDUCE-4417.patch, MAPREDUCE-4417.patch, MAPREDUCE-4417.patch,
> MAPREDUCE-4417.patch
>
>
> Currently Shuffle fetches go on the clear. While Kerberos provides
> comprehensive authentication for the cluster, it does not provide
> confidentiality.
> When processing sensitive data confidentiality may be desired (at the expense
> of job performance and resources utilization for doing encryption).
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