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https://issues.apache.org/jira/browse/HDFS-13255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16848856#comment-16848856
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Ayush Saxena commented on HDFS-13255:
-------------------------------------
Thanx [~aajisaka] for the patch.
v003 seems fair enough to me.
There is a checkstyle warning regarding the unused import, that you may need to
fix.
As we need to update to fix the checkstyle, you may even drop comments in the
test for delete too as you did in the rename one. :)
overall LGTM
> 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
> Attachments: HDFS-13255-HDFS-13891-002.patch,
> HDFS-13255-HDFS-13891-003.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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