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https://issues.apache.org/jira/browse/HADOOP-16878?focusedWorklogId=499447&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-499447
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ASF GitHub Bot logged work on HADOOP-16878:
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Author: ASF GitHub Bot
Created on: 12/Oct/20 15:01
Start Date: 12/Oct/20 15:01
Worklog Time Spent: 10m
Work Description: steveloughran commented on pull request #1857:
URL: https://github.com/apache/hadoop/pull/1857#issuecomment-707173426
@ayushtkn -think Gabor is just too busy with other things. Do you fancy
doing the final fixup?
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Issue Time Tracking
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Worklog Id: (was: 499447)
Time Spent: 0.5h (was: 20m)
> Copy command in FileUtil to throw an exception if the source and destination
> is the same
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-16878
> URL: https://issues.apache.org/jira/browse/HADOOP-16878
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 3.3.0
> Reporter: Gabor Bota
> Assignee: Gabor Bota
> Priority: Major
> Labels: pull-request-available
> Attachments: hdfsTest.patch
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> We encountered an error during a test in our QE when the file destination and
> source path were the same. This happened during an ADLS test, and there were
> no meaningful error messages, so it was hard to find the root cause of the
> failure.
> The error we saw was that file size has changed during the copy operation.
> The new file creation in the destination - which is the same as the source -
> creates a file and sets the file length to zero. After this, getting the
> source file will fail because the sile size changed during the operation.
> I propose a solution to at least log in error level in the {{FileUtil}} if
> the source and destination of the copy operation is the same, so debugging
> issues like this will be easier in the future.
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