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https://issues.apache.org/jira/browse/HDFS-6134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14102838#comment-14102838
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Suresh Srinivas commented on HDFS-6134:
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bq. Do you mean a config switch to completely disable encryption completely in
the NN? Wouldn't someone just not create an encryption zone to achieve the same
thing?
Actually you are right. We decided the same thing for Snapshots. If
snapshottable directories are not created (similar to encryption zone), the
snapshot feature is not in use. So I think it is okay not to have the feature
flag to turn on or off the feature. A related question, how does the CLIs
introduced in this feature work when no encryption zones are created?
> Transparent data at rest encryption
> -----------------------------------
>
> Key: HDFS-6134
> URL: https://issues.apache.org/jira/browse/HDFS-6134
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: security
> Affects Versions: 3.0.0, 2.3.0
> Reporter: Alejandro Abdelnur
> Assignee: Charles Lamb
> Attachments: HDFS-6134.001.patch, HDFS-6134.002.patch,
> HDFS-6134_test_plan.pdf, HDFSDataatRestEncryption.pdf,
> HDFSDataatRestEncryptionProposal_obsolete.pdf,
> HDFSEncryptionConceptualDesignProposal-2014-06-20.pdf,
> fs-encryption.2014-08-18.patch
>
>
> Because of privacy and security regulations, for many industries, sensitive
> data at rest must be in encrypted form. For example: the healthÂcare industry
> (HIPAA regulations), the card payment industry (PCI DSS regulations) or the
> US government (FISMA regulations).
> This JIRA aims to provide a mechanism to encrypt HDFS data at rest that can
> be used transparently by any application accessing HDFS via Hadoop Filesystem
> Java API, Hadoop libhdfs C library, or WebHDFS REST API.
> The resulting implementation should be able to be used in compliance with
> different regulation requirements.
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