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https://issues.apache.org/jira/browse/MAPREDUCE-5081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13614509#comment-13614509
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Sanjay Radia commented on MAPREDUCE-5081:
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bq. Why not leave the old distcp as is and add a new command for distcp2?
Agree this is safer.
Only challenge is whether we will carry distcp1 onto Hadoop 2 line for
compatibility? We could take it forward and mark it deprecated and remove in a
later release.
> Backport DistCpV2 and the related JIRAs to branch-1
> ---------------------------------------------------
>
> Key: MAPREDUCE-5081
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5081
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: distcp
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: m5981_20130321b.patch, m5981_20130321.patch,
> m5981_20130323.patch
>
>
> Here is a list of DistCpV2 JIRAs:
> - MAPREDUCE-2765: DistCpV2 main jira
> - HADOOP-8703: turn CRC checking off for 0 byte size
> - HDFS-3054: distcp -skipcrccheck has no effect.
> - HADOOP-8431: Running distcp without args throws IllegalArgumentException
> - HADOOP-8775: non-positive value to -bandwidth
> - MAPREDUCE-4654: TestDistCp is ignored
> - HADOOP-9022: distcp fails to copy file if -m 0 specified
> - HADOOP-9025: TestCopyListing failing
> - MAPREDUCE-5075: DistCp leaks input file handles
> - distcp part of HADOOP-8341: Fix findbugs issues in hadoop-tools
> - MAPREDUCE-5014: custom CopyListing
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