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https://issues.apache.org/jira/browse/HDFS-6843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14121976#comment-14121976
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Steve Loughran commented on HDFS-6843:
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Given that HADOOP-11026 is related purely to this, I'd them to be pulled in.
# without this, the semantics of "isEncrypted" aren't really being defined, are
they? We're adding a new field, but not tying it up to the rest of the system
# We need to specify the transientness of this. If a directory has
isEncrypted(), is it true that for all subdirectories this property holds? And
all files in the directory?
# once we have that specification, we can derive the tests to verify that the
logic being implemented here matches that specification.
> Create FileStatus isEncrypted() method
> --------------------------------------
>
> Key: HDFS-6843
> URL: https://issues.apache.org/jira/browse/HDFS-6843
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode, security
> Affects Versions: 3.0.0
> Reporter: Charles Lamb
> Assignee: Charles Lamb
> Attachments: HDFS-6843.001.patch, HDFS-6843.002.patch,
> HDFS-6843.003.patch, HDFS-6843.004.patch
>
>
> FileStatus should have a 'boolean isEncrypted()' method. (it was in the
> context of discussing with AndreW about FileStatus being a Writable).
> Having this method would allow MR JobSubmitter do the following:
> -----
> BOOLEAN intermediateEncryption = false
> IF jobconf.contains("mr.intermidate.encryption") THEN
> intermediateEncryption = jobConf.getBoolean("mr.intermidate.encryption")
> ELSE
> IF (I/O)Format INSTANCEOF File(I/O)Format THEN
> intermediateEncryption = ANY File(I/O)Format HAS a Path with status
> isEncrypted()==TRUE
> FI
> jobConf.setBoolean("mr.intermidate.encryption", intermediateEncryption)
> FI
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