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https://issues.apache.org/jira/browse/HADOOP-15208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli resolved HADOOP-15208.
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Resolution: Duplicate
Fix Version/s: (was: 3.1.0)
> DistCp to offer -xtrack <path> option to save src/dest filesets as
> alternative to delete()
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-15208
> URL: https://issues.apache.org/jira/browse/HADOOP-15208
> Project: Hadoop Common
> Issue Type: New Feature
> Components: tools/distcp
> Affects Versions: 2.9.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Attachments: HADOOP-15208-001.patch, HADOOP-15208-002.patch,
> HADOOP-15208-002.patch, HADOOP-15208-003.patch
>
>
> There are opportunities to improve distcp delete performance and scalability
> with object stores, but you need to test with production datasets to
> determine if the optimizations work, don't run out of memory, etc.
> By adding the option to save the sequence files of source, dest listings,
> people (myself included) can experiment with different strategies before
> trying to commit one which doesn't scale
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