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https://issues.apache.org/jira/browse/HDFS-14621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ludun updated HDFS-14621:
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Attachment: HDFS-14261.001.patch
Status: Patch Available (was: Open)
> Distcp can not preserve timestamp with -delete option
> ------------------------------------------------------
>
> Key: HDFS-14621
> URL: https://issues.apache.org/jira/browse/HDFS-14621
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: distcp
> Affects Versions: 3.1.2, 2.7.7
> Reporter: ludun
> Priority: Major
> Attachments: HDFS-14261.001.patch
>
>
> Use distcp with -prbugpcaxt and -delete to copy data between cluster.
> hadoop distcp -Dmapreduce.job.queuename="QueueA" -prbugpcaxt -update -delete
> hdfs://sourcecluster/user/hive/warehouse/sum.db
> hdfs://destcluster/user/hive/warehouse/sum.db
> After distcp, we found the timestamp of dest is different from source, and
> the timestamp of some directory was the time distcp running.
> Check the code of distcp, in committer, it preserves time first then process
> -delete option which will change the timestamp of dest directory. So we
> should process -delete option first.
>
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