[jira] [Updated] (HDFS-11009) Add a tool to reconstruct block meta file from CLI

["Xiao Chen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-11009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiao Chen updated HDFS-11009:
-----------------------------
    Attachment: HDFS-11009.01.patch

Patch 1 to add the feature to debug admin. Manually tested with a block file using default crc, tool output matches with the block meta file.

> Add a tool to reconstruct block meta file from CLI
> --------------------------------------------------
>
>                 Key: HDFS-11009
>                 URL: https://issues.apache.org/jira/browse/HDFS-11009
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>         Attachments: HDFS-11009.01.patch
>
>
> If the block file on local disk presents, but the meta file is missing, it's theoretically possible to manually restore the meta file and have the block readable.
> This jira is to propose to add such a tool to do that.



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