FAQ
MD5Hash factory should reset the digester it returns
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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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postedMay 22, '11 at 5:15a
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