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https://issues.apache.org/jira/browse/HDFS-13870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704282#comment-16704282
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Siyao Meng commented on HDFS-13870:
-----------------------------------
[~jojochuang] [~linyiqun] Thanks for reviewing and committing!
[~brahmareddy] Thanks for closing the duplicate jira.
> WebHDFS: Document ALLOWSNAPSHOT and DISALLOWSNAPSHOT API doc
> ------------------------------------------------------------
>
> Key: HDFS-13870
> URL: https://issues.apache.org/jira/browse/HDFS-13870
> Project: Hadoop HDFS
> Issue Type: Task
> Components: documentation, webhdfs
> Affects Versions: 2.8.0
> Reporter: Siyao Meng
> Assignee: Siyao Meng
> Priority: Minor
> Fix For: 2.10.0, 3.3.0
>
> Attachments: HDFS-13870.001.patch
>
>
> Adding ALLOWSNAPSHOT and DISALLOWSNAPSHOT (since 2.8.0, HDFS-9057) to WebHDFS
> REST API
> [doc|https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/WebHDFS.html].
> Below are my examples of the APIs:
> {code:bash}
> # ALLOWSNAPSHOT uses http method PUT.
> curl -X "PUT"
> "http://<SERVER>:<PORT>/webhdfs/v1/snaptest/?op=ALLOWSNAPSHOT&user.name=hdfs"
> Response on success:
> HTTP/1.1 200 OK
> Content-Type: application/octet-stream
> {code}
> {code:bash}
> # DISALLOWSNAPSHOT uses http method PUT.
> curl -X "PUT"
> "http://<SERVER>:<PORT>/webhdfs/v1/snaptest/?op=DISALLOWSNAPSHOT&user.name=hdfs"
> Response on success:
> HTTP/1.1 200 OK
> Content-Type: application/octet-stream
> {code}
> Note: GETSNAPSHOTDIFF and GETSNAPSHOTTABLEDIRECTORYLIST are already
> documented.
> {code:bash}
> # GETSNAPSHOTDIFF uses GET.
> curl
> "http://<SERVER>:<PORT>/webhdfs/v1/snaptest/?op=GETSNAPSHOTDIFF&user.name=hdfs&oldsnapshotname=snap1&snapshotname=snap2"
> Response on success (example):
> HTTP/1.1 200 OK
> Content-Type: application/json
> {"SnapshotDiffReport":{"diffList":[{"sourcePath":"","type":"MODIFY"},{"sourcePath":"newfile.txt","type":"CREATE"}],"fromSnapshot":"snapOld","snapshotRoot":"/snaptest","toSnapshot":"snapNew"}}
> {code}
> {code:bash}
> # GETSNAPSHOTTABLEDIRECTORYLIST uses GET.
> curl
> "http://<SERVER>:<PORT>/webhdfs/v1/snaptest/?op=GETSNAPSHOTTABLEDIRECTORYLIST&user.name=hdfs"
> Response on success (example):
> HTTP/1.1 200 OK
> Content-Type: application/json
> {"SnapshottableDirectoryList":[{"dirStatus":{"accessTime":0,"blockSize":0,"childrenNum":0,"fileId":16392,"group":"supergroup","length":0,"modificationTime":1535151813500,"owner":"hdfs","pathSuffix":"snaptest","permission":"755","replication":0,"storagePolicy":0,"type":"DIRECTORY"},"parentFullPath":"/","snapshotNumber":2,"snapshotQuota":65536}]}
> {code}
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