Truncating an Object¶
Functions¶
This operation can truncate an object to a specified size.
Note
This API is supported only by parallel file systems. For details about how to create a parallel file system, see Sample Request: Creating a Parallel File System.
Request Syntax¶
PUT /ObjectName?truncate&length=Length HTTP/1.1
Host: bucketname.obs.region.example.com
Authorization: authorization
Content-Length: length
Date: date
Request Parameters¶
The request needs to specify parameters in the message, indicating that this is to truncate an object to a specified size. Table 1 describes the parameters.
Parameter | Description | Mandatory |
|---|---|---|
truncate | Indicates that the upload is for truncation. Type: string | Yes |
length | Size of the object after the truncation Type: integer | Yes |
Request headers¶
This request uses common request headers. For details, see Table 3.
Request Elements¶
This request involves no elements.
Response Syntax¶
HTTP/1.1 204 status_code
Server: OBS
x-obs-request-id: request-id
x-obs-id-2: id
Date: Date
Response Headers¶
The response to the request uses common headers. For details, see Table 1.
Response Elements¶
This response contains no elements.
Error Responses¶
No special error responses are returned. For details about error responses, see Table 2.
Sample Request¶
PUT /ObjectName?truncate&length=1000 HTTP/1.1
Host: examplebucket.obs.region.example.com
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:75/Y4Ng1izvzc1nTGxpMXTE6ynw=
Content-Length: 1
Date: WED, 01 Jul 2015 04:19:20 GMT
Sample Response¶
HTTP/1.1 204 No Content
Server: OBS
x-obs-request-id: 8DF400000163D3F51DEA05AC9CA066F1
x-obs-id-2: 32AAAUgAIAABAAAQAAEAABAAAQAAEAABCSgkM4Dij80gAeFY8pAZIwx72QhDeBZ5
Date: WED, 01 Jul 2015 04:19:21 GMT