Guo Wei created HDFS-17623:
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Summary: RBF：The router service fails to delete a mount table with
multiple subclusters mounted on it through MultipleDestinationMountTableResolver
Key: HDFS-17623
URL: https://issues.apache.org/jira/browse/HDFS-17623
Project: Hadoop HDFS
Issue Type: Bug
Components: rbf
Affects Versions: 3.4.0
Reporter: Guo Wei
Please see the error message in the following example：
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -mkdir -p
hdfs://hh-rbf-test1/guov100/data
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -mkdir -p
hdfs://hh-rbf-test2/guov100/data
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfsrouteradmin -add /guov100/data
hh-rbf-test1,hh-rbf-test2 /guov100/data -order RANDOM
Successfully added mount point /guov100/data
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfsrouteradmin -ls
Mount Table Entries:
Source Destinations Owner
Group Mode Quota/Usage
/guov100/data
hh-rbf-test1->/guov100/data,hh-rbf-test2->/guov100/data hdfs
hadoop rwxr-xr-x [NsQuota: -/-, SsQuota: -/-]
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -mkdir
hdfs://test-fed/guov100/data/test
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -touch
hdfs://hh-rbf-test1/guov100/data/test/file-test1.txt
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -touch
hdfs://hh-rbf-test2/guov100/data/test/file-test2.txt
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -ls
hdfs://hh-rbf-test1/guov100/data/test/
Found 1 items
-rw-r--r-- 3 hdfs hdfs 0 2024-09-13 09:56
hdfs://hh-rbf-test1/guov100/data/test/file-test1.txt
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -ls
hdfs://hh-rbf-test2/guov100/data/test/
Found 1 items
-rw-r--r-- 3 hdfs hdfs 0 2024-09-13 09:56
hdfs://hh-rbf-test2/guov100/data/test/file-test2.txt
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -ls hdfs://test-fed/guov100/data/test/
Found 2 items
-rw-r--r-- 3 hdfs hdfs 0 2024-09-13 09:56
hdfs://test-fed/guov100/data/test/file-test1.txt
-rw-r--r-- 3 hdfs hdfs 0 2024-09-13 09:56
hdfs://test-fed/guov100/data/test/file-test2.txt
[hdfs@sjsy-hh202-zbxh55w root]$
[hdfs@sjsy-hh202-zbxh55w root]$ hdfs dfs -rm -r
hdfs://test-fed/guov100/data/test/
rm: Failed to move to trash: hdfs://test-fed/guov100/data/test: Rename of
/guov100/data/test to /user/hdfs/.Trash/Current/guov100/data/test is not
allowed, no eligible destination in the same namespace was found.
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