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https://issues.apache.org/jira/browse/MAPREDUCE-7287?focusedWorklogId=593220&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-593220
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ASF GitHub Bot logged work on MAPREDUCE-7287:
---------------------------------------------
Author: ASF GitHub Bot
Created on: 07/May/21 10:23
Start Date: 07/May/21 10:23
Worklog Time Spent: 10m
Work Description: zhengchenyu commented on pull request #2852:
URL: https://github.com/apache/hadoop/pull/2852#issuecomment-834244745
@ayushtkn @steveloughran
I add two method (testDistCpWithFile, testDistCpWithUpdateExistFile) in
AbstractContractDistCpTest. testDistCpWithUpdateExistFile will reproduce this
bug if not apply this path.
I don't know how to test cloud filesystem, so I only test
OptionalTestHDFSContractDistCp class in my laptop.
I did't use distCpUpdate, because this problem only reproduced when both
-delete and -update are specified. I afraid that distCpUpdate's parameter will
changed in the future.
At last, sorry for choose wrong module, this issue should belong to HADOOP
but not MAPREDUCE.
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Issue Time Tracking
-------------------
Worklog Id: (was: 593220)
Time Spent: 2h (was: 1h 50m)
> Distcp will delete exists file , If we use "-delete and -update" options and
> distcp file.
> ------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-7287
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7287
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: distcp
> Affects Versions: 3.2.1
> Reporter: zhengchenyu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.1
>
> Attachments: MAPREDUCE-7287.001.patch
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> hdfs://ns1/tmp/a is an existing file, hdfs://ns2/tmp/a is also an existing
> file.
> When I run this command,
> {code:java}
> hadoop distcp -delete -update hdfs://ns1/tmp/a hdfs://ns2/tmp/a
> {code}
> I Found hdfs://ns2/tmp/a is deleted unpectectedly.
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