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https://issues.apache.org/jira/browse/HDFS-15463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shashikant Banerjee updated HDFS-15463:
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Attachment: HDFS-15463.000.patch
> Add a tool to validate FsImage
> ------------------------------
>
> Key: HDFS-15463
> URL: https://issues.apache.org/jira/browse/HDFS-15463
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: namenode
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
> Attachments: FsImageValidation20200709.patch,
> FsImageValidation20200712.patch, FsImageValidation20200714.patch,
> FsImageValidation20200715.patch, HDFS-15463.000.patch
>
>
> Due to some snapshot related bugs, a fsimage may become corrupted. Using a
> corrupted fsimage may further result in data loss.
> In some cases, we found that reference counts are incorrect in some corrupted
> FsImage. One of the goals of the validation tool is to check reference
> counts.
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