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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1262) file corruption detected because dfs client does not use replica blocks for checksum file
Date Tue, 24 Apr 2007 22:39:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12491478
] 

dhruba borthakur commented on HADOOP-1262:
------------------------------------------

+1. looks good.

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