OSS .NET SDK has two types of exceptions: ClientException and OSSException. Both share the properties of RuntimeException.
ClientException
The ClientException exception occurs when the client attempts to send requests and when the data is transmitted to OSS. For example, when a request is sent, ClientException may occur due to unavailable network connections. ClientException may occur during file uploads due to I/O exceptions.
OSSException
OSSException indicates a server exception. The exception occurs because a server error message is parsed. OSSException includes the error code and information returned from OSS. It is used to locate and handle problems.
The following table describes common OSSException information.
| Parameter | Description |
|---|---|
| Code | Specifies the error code returned by OSS. |
| Message | Specifies the detailed error information returned by OSS. |
| RequestId | Specifies the UUID. It is unique and used to identify a request. If a problem persists, send the RequestId to OSS developers for help. |
| HostId | Identifies an OSS cluster. Ensure that the value of HostId is consistent with the Host (endpoint to access a bucket) used in the request. |
OSS error codes
| Error code | Description |
|---|---|
| AccessDenied | Access denied |
| BucketAlreadyExists | The bucket already exists. |
| BucketNotEmpty | The bucket is not empty. |
| EntityTooLarge | The entity size exceeds the maximum limit. |
| EntityTooSmall | The entity size is below the minimum limit. |
| FileGroupTooLarge | The total file group size exceeds the maximum limit. |
| FilePartNotExist | No such part exists. |
| FilePartStale | The part has expired. |
| InvalidArgument | The parameter format is invalid. |
| InvalidAccessKeyId | No such AccessKeyId exists. |
| InvalidBucketName | The bucket name is invalid. |
| InvalidDigest | The digest is invalid. |
| InvalidObjectName | The object name is invalid. |
| InvalidPart | The part is invalid. |
| InvalidPartOrder | The part order is invalid. |
| InvalidTargetBucketForLogging | The buckets that store log files are invalid. |
| InternalError | Internal OSS error |
| MalformedXML | The XML format is invalid. |
| MethodNotAllowed | The method is not allowed. |
| MissingArgument | Parameters are not configured. |
| MissingContentLength | The content length is not configured. |
| NoSuchBucket | No such bucket exists. |
| NoSuchKey | No such object exists. |
| NoSuchUpload | No such uploadId exists. |
| NotImplemented | The methods are not implemented. |
| PreconditionFailed | Precondition error |
| RequestTimeTooSkewed | The local time set for OSSClient is deviated from the time set for the OSS server by over 15 minutes. |
| RequestTimeout | Request timeout |
| SignatureDoesNotMatch | Signature mismatch |
| TooManyBuckets | The number of buckets exceeds the limit. |