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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8042) When copying a file out of HDFS, modifying it, and uploading it back into HDFS, the put fails due to a CRC mismatch
Date Thu, 09 Feb 2012 16:58:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204647#comment-13204647
] 

Hudson commented on HADOOP-8042:
--------------------------------

Integrated in Hadoop-Common-0.23-Commit #529 (See [https://builds.apache.org/job/Hadoop-Common-0.23-Commit/529/])
    svn merge -c 1242389 from trunk to branch 0.23 fixes HADOOP-8042 When copying a file out
of HDFS, modifying it, and uploading it back into HDFS, the put fails due to a CRC mismatch

bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1242394
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/ChecksumFileSystem.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/CommandWithDestination.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/CopyCommands.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/PathData.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestFsShellCopy.java

                
> When copying a file out of HDFS, modifying it, and uploading it back into HDFS, the put
fails due to a CRC mismatch
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8042
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8042
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.24.0, 0.23.1
>         Environment: KR at Yahoo
>            Reporter: Kevin J. Price
>            Assignee: Daryn Sharp
>            Priority: Critical
>             Fix For: 0.23.2
>
>         Attachments: HADOOP-2048.patch, HDFS-2777.patch
>
>
> Performing an hdfs -get on a file, modifying the file, and using hdfs -put to place the
file back into HDFS results in a checksum error.  It seems that the problem is a .crc file
being generated locally from the -get command even though the -crc option was NOT specified.

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