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https://issues.apache.org/jira/browse/HDFS-13255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16850259#comment-16850259
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Akira Ajisaka commented on HDFS-13255:
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Thank you, [~wuweiwei], [~ayushtkn], and [~elgoiri].
> RBF: Fail when try to remove mount point paths
> ----------------------------------------------
>
> Key: HDFS-13255
> URL: https://issues.apache.org/jira/browse/HDFS-13255
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Wu Weiwei
> Assignee: Akira Ajisaka
> Priority: Major
> Fix For: HDFS-13891
>
> Attachments: HDFS-13255-HDFS-13891-002.patch,
> HDFS-13255-HDFS-13891-003.patch, HDFS-13255-HDFS-13891-004.patch,
> HDFS-13255-HDFS-13891-wip-001.patch
>
>
> when delete a ns-fed path which include mount point paths, will issue a error.
> Need to delete each mount point path independently.
> Operation step:
> {code:java}
> [hadp@root]$ hdfs dfsrouteradmin -ls
> Mount Table Entries:
> Source Destinations Owner Group Mode Quota/Usage
> /rm-test-all/rm-test-ns10 ns10->/rm-test hadp hadp rwxr-xr-x [NsQuota: -/-,
> SsQuota: -/-]
> /rm-test-all/rm-test-ns2 ns1->/rm-test hadp hadp rwxr-xr-x [NsQuota: -/-,
> SsQuota: -/-]
> [hadp@root]$ hdfs dfs -ls hdfs://ns-fed/rm-test-all/rm-test-ns10/
> Found 2 items
> -rw-r--r-- 3 hadp supergroup 3118 2018-03-07 21:52
> hdfs://ns-fed/rm-test-all/rm-test-ns10/core-site.xml
> -rw-r--r-- 3 hadp supergroup 7481 2018-03-07 21:52
> hdfs://ns-fed/rm-test-all/rm-test-ns10/hdfs-site.xml
> [hadp@root]$ hdfs dfs -ls hdfs://ns-fed/rm-test-all/rm-test-ns2/
> Found 2 items
> -rw-r--r-- 3 hadp supergroup 101 2018-03-07 16:57
> hdfs://ns-fed/rm-test-all/rm-test-ns2/NOTICE.txt
> -rw-r--r-- 3 hadp supergroup 1366 2018-03-07 16:57
> hdfs://ns-fed/rm-test-all/rm-test-ns2/README.txt
> [hadp@root]$ hdfs dfs -ls hdfs://ns-fed/rm-test-all/rm-test-ns10/
> Found 2 items
> -rw-r--r-- 3 hadp supergroup 3118 2018-03-07 21:52
> hdfs://ns-fed/rm-test-all/rm-test-ns10/core-site.xml
> -rw-r--r-- 3 hadp supergroup 7481 2018-03-07 21:52
> hdfs://ns-fed/rm-test-all/rm-test-ns10/hdfs-site.xml
> [hadp@root]$ hdfs dfs -rm -r hdfs://ns-fed/rm-test-all/
> rm: Failed to move to trash: hdfs://ns-fed/rm-test-all. Consider using
> -skipTrash option
> [hadp@root]$ hdfs dfs -rm -r -skipTrash hdfs://ns-fed/rm-test-all/
> rm: `hdfs://ns-fed/rm-test-all': Input/output error
> {code}
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