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https://issues.apache.org/jira/browse/HDFS-1524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang resolved HDFS-1524.
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Resolution: Fixed
Hadoop Flags: [Reviewed]
I've just committed this.
> Image loader should make sure to read every byte in image file
> --------------------------------------------------------------
>
> Key: HDFS-1524
> URL: https://issues.apache.org/jira/browse/HDFS-1524
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.22.0, 0.23.0
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Priority: Blocker
> Fix For: 0.22.0, 0.23.0
>
> Attachments: eofImageFile.patch
>
>
> When I work on HDFS-1070, I come across a very strange bug. Occasionally when
> loading a compressed image, NameNode throws an exception complaining that the
> image file is corrupt. However, the result returned by the md5sum utility
> matches the checksum value stored in the VERSION file.
> It turns out the image loader leaves 4 bytes unread after loading all the
> real data of an image. Those unread bytes may be some compression-related
> meta-info. The image loader should make sure to read to the end of file in
> order for an correct checksum.
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