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https://issues.apache.org/jira/browse/HDFS-14369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16809434#comment-16809434
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Akira Ajisaka commented on HDFS-14369:
--------------------------------------
Rebased HDFS-13891. HDFS-13891 had
https://github.com/apache/hadoop/commit/bc6fe7ad45986410afa1581572272913aa93e5ec
but the commit does not exist in trunk because of the conflict between gitbox
repository and github repository (INFRA-17947). I skipped the commit and
rebased successfully.
> RBF: Fix trailing "/" for webhdfs
> ---------------------------------
>
> Key: HDFS-14369
> URL: https://issues.apache.org/jira/browse/HDFS-14369
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: CR Hota
> Assignee: Akira Ajisaka
> Priority: Major
> Attachments: HDFS-14369-HDFS-13891-regressiontest-001.patch,
> HDFS-14369-HDFS-13891.001.patch, HDFS-14369-HDFS-13891.002.patch,
> HDFS-14369-HDFS-13891.003.patch, HDFS-14369-HDFS-13891.004.patch
>
>
> WebHDFS doesn't trim trailing slash causing discrepancy in operations.
> Example below
> --------------------------
> Using HDFS API, two directory are listed.
> {code}
> $ hdfs dfs -ls hdfs://<router>:8888/tmp/
> Found 2 items
> drwxrwxrwx - hdfs supergroup 0 2018-11-09 17:50
> hdfs://<router>:8888/tmp/tmp1
> drwxrwxrwx - hdfs supergroup 0 2018-11-09 17:50
> hdfs://<router>:8888/tmp/tmp2
> {code}
> Using WebHDFS API, only one directory is listed.
> {code}
> $ curl -u : --negotiate -i
> "http://<router>:50071/webhdfs/v1/tmp/?op=LISTSTATUS"
> (snip)
> {"FileStatuses":{"FileStatus":[
> {"accessTime":0,"blockSize":0,"childrenNum":0,"fileId":16387,"group":"supergroup","length":0,"modificationTime":1552016766769,"owner":"hdfs","pathSuffix":"tmp1","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"}
> ]}}
> {code}
> The mount table is as follows:
> {code}
> $ hdfs dfsrouteradmin -ls /tmp
> Mount Table Entries:
> Source Destinations Owner
> Group Mode Quota/Usage
> /tmp ns1->/tmp aajisaka
> users rwxr-xr-x [NsQuota: -/-, SsQuota:
> -/-]
> /tmp/tmp1 ns1->/tmp/tmp1 aajisaka
> users rwxr-xr-x [NsQuota: -/-, SsQuota:
> -/-]
> /tmp/tmp2 ns2->/tmp/tmp2 aajisaka
> users rwxr-xr-x [NsQuota: -/-, SsQuota:
> -/-]
> {code}
> Without trailing thrash, two directories are listed.
> {code}
> $ curl -u : --negotiate -i
> "http://<router>:50071/webhdfs/v1/tmp?op=LISTSTATUS"
> (snip)
> {"FileStatuses":{"FileStatus":[
> {"accessTime":1541753421917,"blockSize":0,"childrenNum":0,"fileId":0,"group":"supergroup","length":0,"modificationTime":1541753421917,"owner":"hdfs","pathSuffix":"tmp1","permission":"777","replication":0,"storagePolicy":0,"symlink":"","type":"DIRECTORY"},
> {"accessTime":1541753429812,"blockSize":0,"childrenNum":0,"fileId":0,"group":"supergroup","length":0,"modificationTime":1541753429812,"owner":"hdfs","pathSuffix":"tmp2","permission":"777","replication":0,"storagePolicy":0,"symlink":"","type":"DIRECTORY"}
> ]}}
> {code}
> [~ajisakaa] Thanks for reporting this, I borrowed the text from
> HDFS-13972
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