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https://issues.apache.org/jira/browse/MAPREDUCE-5950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14098641#comment-14098641
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Hudson commented on MAPREDUCE-5950:
-----------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk #1838 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1838/])
MAPREDUCE-5950. incorrect description in distcp2 document (Akira AJISAKA via
aw) (aw:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1617994)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/DistCp.md.vm
> incorrect description in distcp2 document
> -----------------------------------------
>
> Key: MAPREDUCE-5950
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5950
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: documentation
> Affects Versions: 1.2.1, 2.4.0
> Reporter: Yongjun Zhang
> Assignee: Akira AJISAKA
> Labels: newbie
> Fix For: 3.0.0, 2.6.0
>
> Attachments: HDFS-6502.2.patch, HDFS-6502.3.patch, HDFS-6502.4.patch,
> HDFS-6502.patch
>
>
> In http://hadoop.apache.org/docs/r1.2.1/distcp2.html#UpdateAndOverwrite
> The first statement of the "Update and Overwrite" section says:
> {quote}
> -update is used to copy files from source that don't exist at the target, or
> have different contents. -overwrite overwrites target-files even if they
> exist at the source, or have the same contents.
> {quote}
> The "Command Line Options" table says :
> {quote}
> -overwrite: Overwrite destination
> -update: Overwrite if src size different from dst size
> {quote}
> Based on the implementation, making the following modification would be more
> accurate:
> The first statement of the "Update and Overwrite" section:
> {code}
> -update is used to copy files from source that don't exist at the target, or
> have different contents. -overwrite overwrites target-files if they exist at
> the target.
> {code}
> The "Command Line Options" table:
> {code}
> -overwrite: Overwrite destination
> -update: Overwrite destination if source and destination have different
> contents
> {code}
> Thanks.
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