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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-7318) MD5Hash factory should reset the digester it returns
Date Sun, 22 May 2011 05:14:47 GMT
MD5Hash factory should reset the digester it returns
----------------------------------------------------

                 Key: HADOOP-7318
                 URL: https://issues.apache.org/jira/browse/HADOOP-7318
             Project: Hadoop Common
          Issue Type: Bug
          Components: io
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
            Priority: Critical
             Fix For: 0.22.0
         Attachments: hadoop-7318.txt

Currently the getDigest() method in MD5Hash does not reset the digester it returns. Since
it's a thread-local, this means that a previous aborted usage of the same digester could leave
some state around. For example, if the secondary namenode receives an IOException while transfering
the image, and does another image transfer with the same thread, it will think it has received
an invalid digest.

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