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https://issues.apache.org/jira/browse/HDFS-14788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17372761#comment-17372761
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Hongbing Wang commented on HDFS-14788:
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Is there a plan to filter files by modtime? In the scenario of incremental data
synchronization, if files in certain time windows can be specified, efficiency
can be greatly improved.
> Use dynamic regex filter to ignore copy of source files in Distcp
> -----------------------------------------------------------------
>
> Key: HDFS-14788
> URL: https://issues.apache.org/jira/browse/HDFS-14788
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: distcp
> Affects Versions: 3.2.1
> Reporter: Mukund Thakur
> Assignee: Mukund Thakur
> Priority: Major
> Fix For: 3.3.0
>
>
> There is a feature in Distcp where we can ignore specific files to get copied
> to the destination. This is currently based on a filter regex which is read
> from a specific file. The process of creating different regex file for
> different distcp jobs seems like a tedious task. What we are proposing is to
> expose a regex_filter parameter which can be set during Distcp job creation
> and use this filter in a new implementation CopyFilter class.
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