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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10625) VolumeScanner to report why a block is found bad
Date Thu, 14 Jul 2016 05:44:20 GMT
Yongjun Zhang created HDFS-10625:
------------------------------------

             Summary:  VolumeScanner to report why a block is found bad
                 Key: HDFS-10625
                 URL: https://issues.apache.org/jira/browse/HDFS-10625
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode, hdfs
            Reporter: Yongjun Zhang


VolumeScanner may report:

{code}
WARN org.apache.hadoop.hdfs.server.datanode.VolumeScanner: Reporting bad blk_1170125248_96458336
on /d/dfs/dn
{code}

It would be helpful to report the reason why the block is bad, especially when the block is
corrupt, where is the first corrupted chunk in the block.




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