使用python azure模块中的附加块的Azure blob存储服务不起作用。当我试图修改模块时，它显示以下错误。
Traceback (most recent call last):
File "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\Extensions\Microsoft\Python Tools for Visual Studio\2.1\visualstudio_py_util.py", line 106, in exec_file
exec_code(code, file, global_variables)
File "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\Extensions\Microsoft\Python Tools for Visual Studio\2.1\visualstudio_py_util.py", line 82, in exec_code
exec(code_obj, global_variables)
File "E:\Finons\Sankar\Source\Source\WebsiteTracking\testing.py", line 15, in<module>
blob_service.append_block_blob_from_file(containername,filename,filepath,None)
File "C:\Python27\lib\site-packages\azure\storage\blobservice.py", line 2723, in append_block_blob_from_file
x_ms_lease_id,
File "C:\Python27\lib\site-packages\azure\storage\blobservice.py", line 851, in put_blob self._perform_request(request)
File "C:\Python27\lib\site-packages\azure\storage\storageclient.py", line 179, in _perform_request
_storage_error_handler(ex)
File "C:\Python27\lib\site-packages\azure\storage\__init__.py", line 1186, in _storage_error_handler
return _general_error_handler(http_error)
File "C:\Python27\lib\site-packages\azure\__init__.py", line 551, in _general_error_handler
http_error.respbody.decode('utf-8-sig'))
WindowsAzureError: Unknown error (Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.)
<?xml version="1.0" encoding="utf-8"?><Error><Code>AuthenticationFailed</Code><Message>Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
RequestId:898a6c60-0001-0094-2b99-d6da0d000000 Time:2015-08-14T13:58:54.9779810Z</Message><AuthenticationErrorDetail>The MAC signature found in the HTTP request 'DAAfD/aLQHqljUS35p7CoX+JBc5lyrPr1twQIQEW0HI='
is not the same as any computed signature. Server used following string to sign: 'PUT
application/octet-stream Charset=UTF-8
是否有可能解决此错误？
这是我在SDK中给出的模块中的代码更改。
def append_block_blob_from_file(self, container_name, blob_name, stream,
count=None, content_encoding=None,
content_language=None, content_md5=None,
cache_control=None,
x_ms_blob_content_type=None,
x_ms_blob_content_encoding=None,
x_ms_blob_content_language=None,
x_ms_blob_content_md5=None,
x_ms_blob_cache_control=None,
x_ms_meta_name_values=None,
x_ms_lease_id=None, progress_callback=None,
max_connections=1, max_retries=5, retry_wait=1.0):
_validate_not_none('container_name', container_name)
_validate_not_none('blob_name', blob_name)
_validate_not_none('stream', stream)
if count and count < self._BLOB_MAX_DATA_SIZE:
if progress_callback:
progress_callback(0, count)
data = stream.read(count)
self.put_blob(container_name,
blob_name,
data,
'AppendBlob',
content_encoding,
content_language,
content_md5,
cache_control,
x_ms_blob_content_type,
x_ms_blob_content_encoding,
x_ms_blob_content_language,
x_ms_blob_content_md5,
x_ms_blob_cache_control,
x_ms_meta_name_values,
x_ms_lease_id)
if progress_callback:
progress_callback(count, count)
else:
self.put_blob(
container_name,
blob_name,
None,
'AppendBlob',
content_encoding,
content_language,
content_md5,
cache_control,
x_ms_blob_content_type,
x_ms_blob_content_encoding,
x_ms_blob_content_language,
x_ms_blob_content_md5,
x_ms_blob_cache_control,
x_ms_meta_name_values,
x_ms_lease_id,
)
_upload_blob_chunks(
self,
container_name,
blob_name,
count,
self._BLOB_MAX_CHUNK_DATA_SIZE,
stream,
max_connections,
max_retries,
retry_wait,
progress_callback,
x_ms_lease_id,
_AppendBlobChunkUploader,
)
self.put_block_list(
container_name,
blob_name,
block_ids,
content_md5,
x_ms_blob_cache_control,
x_ms_blob_content_type,
x_ms_blob_content_encoding,
x_ms_blob_content_language,
x_ms_blob_content_md5,
x_ms_meta_name_values,
x_ms_lease_id,
)
我在 Init .py
中定义了以下代码class _AppendBlobChunkUploader(_BlobChunkUploader):
def _append_chunk(self, chunk_offset, chunk_data):
range_id = url_quote(_encode_base64('{0:032d}'.format(chunk_offset)))
self.blob_service.put_block(
self.container_name,
self.blob_name,
chunk_data,
range_id,
x_ms_lease_id=self.x_ms_lease_id,x_ms_blob_condition_maxsize=4194304,x_ms_blob_condition_appendpos=chunk_offset
)
return range_id
请注意最后两个附加参数。我在参考api参考后将其包括在内。还将版本修改为 X_MS_VERSION =＆＃39; 2015-02-21＆＃39;
参考链接：https://msdn.microsoft.com/en-us/library/azure/mt427365.aspx
答案 0 :(得分：2)
您似乎没有提供说明中的constexpr const S *sp = &s;
功能详细信息。我检查了Python SDK，我没有发现put_block函数支持put_block类中的x_ms_blob_condition_maxsize和x_ms_blob_condition_appendpos这两个参数。但是，对于您的方案，我建议您可以使用Azure Blob REST API附加您的块，正如Gaurav所说。
同时，从您的错误消息中，我确信您的签名有问题。
我使用一个简单的代码来构造签名字符串，请参考它：
BlobService你应该得到你的blockblob长度并使用这个请求向服务器发送blockblob数据。
答案 1 :(得分：0)
以防万一其他人遇到相同的问题，这是一个link，并带有示例如何从python追加的示例
from azure.storage.blob import AppendBlobService
append_blob_service = AppendBlobService(account_name='myaccount', account_key='mykey')
# The same containers can hold all types of blobs
append_blob_service.create_container('mycontainer')
# Append blobs must be created before they are appended to
append_blob_service.create_blob('mycontainer', 'myappendblob')
append_blob_service.append_blob_from_text('mycontainer', 'myappendblob', u'Hello, world!')
append_blob = append_blob_service.get_blob_to_text('mycontainer', 'myappendblob')