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Troubleshooting

Terakhir diperbarui:2024-02-04 16:24:44

    Overview

    If an XML Python SDK operation is successful, the system will return dict or None. If an SDK API call to request the COS service fails, the system will throw CosClientError (client exception) or CosServiceError (server exception).
    The client exception, CosClientError, results from unexpected interaction issues between the client and the COS server, such as a failure to connect to the server, a failure to parse the data returned by the server, or the occurrence of an IO exception when reading a local file.
    The server exception, CosServiceError, occurs when the client interacts with the COS server normally, but the operation fails. For example, the client accesses a bucket that does not exist, deletes an object that does not exist, or does not have the permission to perform an operation.

    Client Exceptions

    A CosClientError generally refers to a client error caused by issues such as timeout. When capturing such an error, you can choose to retry or perform other operations.

    Server Exceptions

    A CosServiceError contains the detailed information returned by the server, including the status code, request ID, and error details. After such an exception is captured, it is recommended that you print out the entire exception as it contains necessary factors for troubleshooting. The following describes the member variables of the exception and provides an example of exception capturing.
    Member
    Description
    Type
    request_id
    Request ID, used to identify a request. It is very important for troubleshooting.
    string
    status_code
    Status code in the response. For more information, see Error Codes.
    string
    error_code
    Error code returned by the body when the request fails. For more information, see Error Codes.
    string
    error_msg
    Error message returned by the body when the request fails. For more information, see Error Codes.
    string

    Example of Exception Capturing

    from qcloud_cos import CosServiceError
    
    except CosServiceError as e:
    e.get_origin_msg() # Get the original error message in XML format
    e.get_digest_msg() # Get the processed error message in dict format
    e.get_status_code() # Get the HTTP error code (e.g. 4xx, 5xx)
    e.get_error_code() # Get the COS-defined error code
    e.get_error_msg() # Get a detailed description of the COS error code
    e.get_trace_id() # Get the trace_id of the request
    e.get_request_id() # Get the request_id of the request
    e.get_resource_location() # Get the URL

    Using the Diagnosis Tool

    COS provides a self-help diagnosis tool to help you quickly locate request problems and debug code.

    Directions

    1. Copy the request ID (RequestId) returned when the request error occurs.
    2. Click Diagnosis Tool.
    
    3. Enter RequestId and click Diagnose.
    4. Wait and view the diagnostic result.
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