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https://issues.apache.org/jira/browse/HADOOP-17742?focusedWorklogId=605652&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-605652
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ASF GitHub Bot logged work on HADOOP-17742:
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Author: ASF GitHub Bot
Created on: 03/Jun/21 04:36
Start Date: 03/Jun/21 04:36
Worklog Time Spent: 10m
Work Description: zhaomin1423 closed pull request #3067:
URL: https://github.com/apache/hadoop/pull/3067
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Issue Time Tracking
-------------------
Worklog Id: (was: 605652)
Time Spent: 0.5h (was: 20m)
> DistCp: distcp fail when copying to ftp filesystem
> --------------------------------------------------
>
> Key: HADOOP-17742
> URL: https://issues.apache.org/jira/browse/HADOOP-17742
> Project: Hadoop Common
> Issue Type: Bug
> Components: tools/distcp
> Affects Versions: 3.3.0
> Reporter: jerry
> Assignee: jerry
> Priority: Blocker
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> When I copy file from a ftp filesystem to other ftp filesystem by distCp,
> there are two problems. Firstly, the tmp target path can't be found in the
> exception information. After my test, it was caused by the comma. Then when
> the uri of target path with schema, host, port can't be rename because of the
> ioexception.
> {code:java}
> // exception information
> java.io.FileNotFoundException: Source path
> ftp://hadoop336.photo.163.org:21/ndi-0111/56598489-3de3-4585-8426-c03435640481/.distcp.tmp.attempt_local344388648_0001_m_000000_0.1622634094600
> does not existjava.io.FileNotFoundException: Source path
> ftp://hadoop336.photo.163.org:21/ndi-0111/56598489-3de3-4585-8426-c03435640481/.distcp.tmp.attempt_local344388648_0001_m_000000_0.1622634094600
> does not exist at
> org.apache.hadoop.fs.ftp.FTPFileSystem.rename(FTPFileSystem.java:668) at
> org.apache.hadoop.fs.ftp.FTPFileSystem.rename(FTPFileSystem.java:626) at
> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.promoteTmpToTarget(RetriableFileCopyCommand.java:220)
> at
> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doCopy(RetriableFileCopyCommand.java:155)
> at
> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doExecute(RetriableFileCopyCommand.java:115)
> at
> org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:87)
> at
> org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:258)
> {code}
> When I update the tempFileName from '.distcp.tmp.XXX' in
> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand#getTempFile to
> 'distcp.tmp.XXX', the question one is gone.
> The targetPath can be renamed when only the path of uri exists in
> org.apache.hadoop.tools.mapred.RetriableFileCopyCommand#doCopy.
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