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https://issues.apache.org/jira/browse/HDFS-1481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12932853#action_12932853
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Hairong Kuang commented on HDFS-1481:
-------------------------------------
Konstantin, thanks for your review. Sorry for getting back to this late. I was
distracted by something else.
For CN, image checksum validate was done when loading the image from disk to
memory. So I do not think CN should validate it at download time.
> NameNode should validate fsimage before rolling
> -----------------------------------------------
>
> Key: HDFS-1481
> URL: https://issues.apache.org/jira/browse/HDFS-1481
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: name-node
> Affects Versions: 0.22.0
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: trunkValidateUpload.patch
>
>
> We had an incident that the fsimage at secondary NameNode was truncated but
> got uploaded to the primary NameNode. The primary NameNode simply rolled the
> image without checking its integrity, therefore causing the fsimage to
> corrupt. The primary NameNode should check the new image's integrity before
> rolling fsimage.
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