Xiao Chen created HDFS-11009:

             Summary: 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

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 
This jira is to propose to add such a tool to do that.

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