HDFS-13870. WebHDFS: Document ALLOWSNAPSHOT and DISALLOWSNAPSHOT API doc. Contributed by Siyao Meng.
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@ -64,6 +64,8 @@ The HTTP REST API supports the complete [FileSystem](../../api/org/apache/hadoop
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* [`SETTIMES`](#Set_Access_or_Modification_Time) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).setTimes)
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* [`RENEWDELEGATIONTOKEN`](#Renew_Delegation_Token) (see [DelegationTokenAuthenticator](../../api/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticator.html).renewDelegationToken)
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* [`CANCELDELEGATIONTOKEN`](#Cancel_Delegation_Token) (see [DelegationTokenAuthenticator](../../api/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticator.html).cancelDelegationToken)
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* [`ALLOWSNAPSHOT`](#Allow_Snapshot)
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* [`DISALLOWSNAPSHOT`](#Disallow_Snapshot)
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* [`CREATESNAPSHOT`](#Create_Snapshot) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).createSnapshot)
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* [`RENAMESNAPSHOT`](#Rename_Snapshot) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).renameSnapshot)
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* [`SETXATTR`](#Set_XAttr) (see [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).setXAttr)
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@ -1302,6 +1304,28 @@ See also: [HDFSErasureCoding](./HDFSErasureCoding.html#Administrative_commands).
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Snapshot Operations
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-------------------
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### Allow Snapshot
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* Submit a HTTP PUT request.
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curl -i -X PUT "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=ALLOWSNAPSHOT"
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The client receives a response with zero content length on success:
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HTTP/1.1 200 OK
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Content-Length: 0
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### Disallow Snapshot
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* Submit a HTTP PUT request.
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curl -i -X PUT "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=DISALLOWSNAPSHOT"
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The client receives a response with zero content length on success:
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HTTP/1.1 200 OK
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Content-Length: 0
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### Create Snapshot
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* Submit a HTTP PUT request.
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