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https://issues.apache.org/jira/browse/MAPREDUCE-5890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058364#comment-14058364
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Chris Douglas commented on MAPREDUCE-5890:
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Yes; thanks [~asuresh] for your patience in seeing this through.
> Support for encrypting Intermediate data and spills in local filesystem
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-5890
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5890
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: security
> Affects Versions: 2.4.0
> Reporter: Alejandro Abdelnur
> Assignee: Arun Suresh
> Labels: encryption
> Fix For: fs-encryption
>
> Attachments: MAPREDUCE-5890.10.patch, MAPREDUCE-5890.11.patch,
> MAPREDUCE-5890.12.patch, MAPREDUCE-5890.13.patch, MAPREDUCE-5890.14.patch,
> MAPREDUCE-5890.15.patch, MAPREDUCE-5890.3.patch, MAPREDUCE-5890.4.patch,
> MAPREDUCE-5890.5.patch, MAPREDUCE-5890.6.patch, MAPREDUCE-5890.7.patch,
> MAPREDUCE-5890.8.patch, MAPREDUCE-5890.9.patch,
> org.apache.hadoop.mapred.TestMRIntermediateDataEncryption-output.txt,
> syslog.tar.gz
>
>
> For some sensitive data, encryption while in flight (network) is not
> sufficient, it is required that while at rest it should be encrypted.
> HADOOP-10150 & HDFS-6134 bring encryption at rest for data in filesystem
> using Hadoop FileSystem API. MapReduce intermediate data and spills should
> also be encrypted while at rest.
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