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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11891) OsSecureRandom should lazily fill its reservoir
Date Thu, 30 Apr 2015 21:05:06 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14522267#comment-14522267
] 

Arun Suresh commented on HADOOP-11891:
--------------------------------------

committed to trunk, branch-2 and branch-2.7

> OsSecureRandom should lazily fill its reservoir
> -----------------------------------------------
>
>                 Key: HADOOP-11891
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11891
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>             Fix For: 2.7.1
>
>         Attachments: HADOOP-11891.1.patch, HADOOP-11891.2.patch
>
>
> The {{OsSecureRandom}} class that is initialized by on the the {{CryptoCodec}} implementations
eagerly fills its reservoir of random bits. This will result in too many file descriptors
being opened simply and is not really required if the client already has a random IV and key
needed for decryption.



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