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https://issues.apache.org/jira/browse/HDFS-7682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-7682:
---------------------------------
Resolution: Fixed
Fix Version/s: 2.7.0
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
I've just committed this to trunk and branch-2.
Thanks a lot for the contribution, Charlie, and thanks also to Jing for the
reviews.
> {{DistributedFileSystem#getFileChecksum}} of a snapshotted file includes
> non-snapshotted content
> ------------------------------------------------------------------------------------------------
>
> Key: HDFS-7682
> URL: https://issues.apache.org/jira/browse/HDFS-7682
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.0
> Reporter: Charles Lamb
> Assignee: Charles Lamb
> Fix For: 2.7.0
>
> Attachments: HDFS-7682.000.patch, HDFS-7682.001.patch,
> HDFS-7682.002.patch, HDFS-7682.003.patch
>
>
> DistributedFileSystem#getFileChecksum of a snapshotted file includes
> non-snapshotted content.
> The reason why this happens is because DistributedFileSystem#getFileChecksum
> simply calculates the checksum of all of the CRCs from the blocks in the
> file. But, in the case of a snapshotted file, we don't want to include data
> in the checksum that was appended to the last block in the file after the
> snapshot was taken.
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