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From "Marcelo Vanzin (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-19520) WAL should not be encrypted
Date Mon, 13 Feb 2017 22:34:41 GMT

     [ https://issues.apache.org/jira/browse/SPARK-19520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcelo Vanzin resolved SPARK-19520.
------------------------------------
       Resolution: Fixed
         Assignee: Marcelo Vanzin
    Fix Version/s: 2.2.0
                   2.1.1

> WAL should not be encrypted
> ---------------------------
>
>                 Key: SPARK-19520
>                 URL: https://issues.apache.org/jira/browse/SPARK-19520
>             Project: Spark
>          Issue Type: Bug
>          Components: DStreams
>    Affects Versions: 2.1.0
>            Reporter: Marcelo Vanzin
>            Assignee: Marcelo Vanzin
>             Fix For: 2.1.1, 2.2.0
>
>
> If I/O encryption is enabled in Spark (SPARK-5682), the write ahead logs written by streaming
applications will also be encrypted.
> That creates issues because only the driver that wrote those files knows the key to decrypt
them. So basically the WAL is unusuable in that scenario.
> Instead, the WAL should not be encrypted by Spark; if the user has a need to encrypt
that data, other means (such as HDFS encryption zones) should be used instead.



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