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https://issues.apache.org/jira/browse/HDFS-14431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16850319#comment-16850319
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xuzq commented on HDFS-14431:
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Yes, if we rename one file from /mntsrc to /mntdst, it is ok.
But if we rename one directory from /mntsrc to /mntdst, it will be incomplete.
Like this:
* we will rename the directory from /mntsrc to /mntdst
* /mntsrc has file1 in ns1 and has file2 in ns2
* /mntdst mount to ns2 and ns3, but dos't have files.
After rename, file2 renamed to /mntdst/file2, but file1 will still in
/mntsrc/file1.
> RBF: Rename with multiple subclusters should fail if no eligible locations
> --------------------------------------------------------------------------
>
> Key: HDFS-14431
> URL: https://issues.apache.org/jira/browse/HDFS-14431
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Attachments: HDFS-14431-HDFS-13891.001.patch,
> HDFS-14431-HDFS-13891.002.patch, HDFS-14431-HDFS-13891.003.patch,
> HDFS-14431-HDFS-13891.004.patch, HDFS-14431-HDFS-13891.005.patch,
> HDFS-14431-HDFS-13891.006.patch, HDFS-14431-HDFS-13891.007.patch
>
>
> Currently, the rename will fail with FileNotFoundException which is not clear
> to the user.
> The operation should fail stating the reason is that there are no eligible
> destinations.
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