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From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10603) Crypto input and output streams implementing Hadoop stream interfaces
Date Fri, 16 May 2014 11:08:42 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999474#comment-13999474
] 

Yi Liu commented on HADOOP-10603:
---------------------------------

Thanks [~clamb] and [~tucu00] , good comments. Actually I have also refined crypto streams
using similar interfaces like {{DirectDecompressor}}, I will merge your proposed code to mine,
and update later today. I will response you later today, too.

> Crypto input and output streams implementing Hadoop stream interfaces
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-10603
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10603
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: security
>            Reporter: Alejandro Abdelnur
>            Assignee: Yi Liu
>             Fix For: 3.0.0
>
>         Attachments: HADOOP-10603.1.patch, HADOOP-10603.2.patch, HADOOP-10603.patch
>
>
> A common set of Crypto Input/Output streams. They would be used by CryptoFileSystem,
HDFS encryption, MapReduce intermediate data and spills. Note we cannot use the JDK Cipher
Input/Output streams directly because we need to support the additional interfaces that the
Hadoop FileSystem streams implement (Seekable, PositionedReadable, ByteBufferReadable, HasFileDescriptor,
CanSetDropBehind, CanSetReadahead, HasEnhancedByteBufferAccess, Syncable, CanSetDropBehind).



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