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HDFS-13870. WebHDFS: Document ALLOWSNAPSHOT and DISALLOWSNAPSHOT API doc. Contributed by Siyao Meng.

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Yiqun Lin 2018-11-30 11:31:34 +08:00
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hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/WebHDFS.md
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@ -64,6 +64,8 @@ The HTTP REST API supports the complete [FileSystem](../../api/org/apache/hadoop
* [`SETTIMES`](#Set_Access_or_Modification_Time) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).setTimes)
* [`RENEWDELEGATIONTOKEN`](#Renew_Delegation_Token) (see [DelegationTokenAuthenticator](../../api/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticator.html).renewDelegationToken)
* [`CANCELDELEGATIONTOKEN`](#Cancel_Delegation_Token) (see [DelegationTokenAuthenticator](../../api/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticator.html).cancelDelegationToken)
* [`ALLOWSNAPSHOT`](#Allow_Snapshot)
* [`DISALLOWSNAPSHOT`](#Disallow_Snapshot)
* [`CREATESNAPSHOT`](#Create_Snapshot) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).createSnapshot)
* [`RENAMESNAPSHOT`](#Rename_Snapshot) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).renameSnapshot)
* [`SETXATTR`](#Set_XAttr) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).setXAttr)
@ -1302,6 +1304,28 @@ See also: [HDFSErasureCoding](./HDFSErasureCoding.html#Administrative_commands).
Snapshot Operations
-------------------
### Allow Snapshot
* Submit a HTTP PUT request.
curl -i -X PUT "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=ALLOWSNAPSHOT"
The client receives a response with zero content length on success:
HTTP/1.1 200 OK
Content-Length: 0
### Disallow Snapshot
* Submit a HTTP PUT request.
curl -i -X PUT "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=DISALLOWSNAPSHOT"
The client receives a response with zero content length on success:
HTTP/1.1 200 OK
Content-Length: 0
### Create Snapshot
* Submit a HTTP PUT request.