[jira] [Commented] (HADOOP-11891) OsSecureRandom should lazily fill its reservoir

["Hudson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-11891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14523022#comment-14523022 ] 

Hudson commented on HADOOP-11891:
---------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #180 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/180/])
HADOOP-11891. OsSecureRandom should lazily fill its reservoir (asuresh) (Arun Suresh: rev f0db797be28ca221d540c6a3accd6bff9a7996fa)
* hadoop-common-project/hadoop-common/CHANGES.txt
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/random/OsSecureRandom.java


> OsSecureRandom should lazily fill its reservoir
> -----------------------------------------------
>
>                 Key: HADOOP-11891
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11891
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    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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