file corruption detected because dfs client does not use replica blocks for 
checksum file
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                 Key: HADOOP-1262
                 URL: https://issues.apache.org/jira/browse/HADOOP-1262
             Project: Hadoop
          Issue Type: Bug
          Components: dfs
            Reporter: dhruba borthakur


A block of a crc file was corrupted. This caused the DFS client to detect a CRc 
corruption. The client tried all the three replicas of the data file. It did 
not try any replicas of the CRC file. This caused the client to abort the read 
request with a bad-CRC message.

07/04/16 20:42:26 INFO fs.FileSystem: Found checksum error in data stream at 
block=blk_6205660483922449140 on datanode=xx:50010
07/04/16 20:42:26 INFO fs.FileSystem: Found checksum error in checksum stream 
at block=blk_-3722915954820866561 on datanode=yy:50010

07/04/16 20:42:26 INFO fs.FileSystem: Found checksum error in data stream at 
block=blk_6205660483922449140 on datanode=zz:50010
07/04/16 20:42:26 INFO fs.FileSystem: Found checksum error in checksum stream 
at block=blk_-3722915954820866561 on datanode=yy:50010

07/04/16 20:42:26 INFO fs.FileSystem: Found checksum error in data stream at 
block=blk_6205660483922449140 on datanode=xx.:50010
07/04/16 20:42:26 INFO fs.FileSystem: Found checksum error in checksum stream 
at block=blk_-3722915954820866561 on datanode=yy:50010

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