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Posted to hdfs-dev@hadoop.apache.org by "Shashikant Banerjee (Jira)" <ji...@apache.org> on 2020/07/20 06:16:00 UTC

[jira] [Resolved] (HDFS-15463) Add a tool to validate FsImage

     [ https://issues.apache.org/jira/browse/HDFS-15463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shashikant Banerjee resolved HDFS-15463.
----------------------------------------
    Fix Version/s: 3.4.0
       Resolution: Fixed

> 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
>             Fix For: 3.4.0
>
>         Attachments: FsImageValidation20200709.patch, FsImageValidation20200712.patch, FsImageValidation20200714.patch, FsImageValidation20200715.patch, FsImageValidation20200715b.patch, FsImageValidation20200715c.patch, FsImageValidation20200717b.patch, FsImageValidation20200718.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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