Azure的BlobStorage：400（其中一个请求输入超出范围。）

Question

当我试图斑点上传到我的Azure存储帐户，我收到以下错误响应

<?xml version="1.0" encoding="utf-8"?> 
    <Error> 
    <Code>OutOfRangeInput</Code> 
    <Message>One of the request inputs is out of range. 
      RequestId:-------------------------- 
      Time:2017-10-29T07:13:37.4218874Z 
    </Message> 
    </Error> 

我上传多个斑点，其中一些成功上传，而另一些则不成功。抛出错误的那些有大的Blob名（约100字），所以认为它可能是由于斑点-名大小。但根据https://blogs.msdn.microsoft.com/jmstall/2014/06/12/azure-storage-naming-rules/最大的Blob名称可以是1024，我的斑点，名称是比限制的方式较少。

一个例子的Blob名称将是 “六五/ 36/aluminium_03_group67_product_02pCube1_product_02group2_product_02Flow000_Albedo.png”

编辑代码上传的斑点。

的代码上传是在Javascript。我将文件分成多个区块并上传。这里负责上载文件

function AzureFileUpload(file, uploadUrl, successCallback, progressCallback, errorCallback){ 
    this.file = file; 
    this.uploadUrl = uploadUrl; 
    this.successCallback = successCallback; 
    this.progressCallback = progressCallback; 
    this.errorCallback = errorCallback; 
    this.reader = new FileReader(); 
    this.maxBlockSize = 256 * 1024; 
    this.blockIds = []; 
    this.totalBytesRemaining = this.file.size; 
    this.currentFilePointer = 0; 
    this.bytesUploaded = 0; 
    this.uploadFlag = true; 
    var self = this; 
    this.reader.onloadend = function(evt) { 
     if (evt.target.readyState == FileReader.DONE) { // DONE == 2 
      var uri = self.uploadUrl + '&comp=block&blockid=' + self.blockIds[self.blockIds.length - 1]; 
      var requestData = new Uint8Array(evt.target.result); 
      self.ReadBlock(); 
      if(self.uploadFlag){ 
       self.UploadBlock(requestData, uri); 
      } 
     } 
    }; 
    this.ReadBlock(); 
} 

AzureFileUpload.prototype.UploadBlock = function(requestData, blockUrl){ 
    var self = this; 
    $.ajax({ 
     url: blockUrl, 
     type: "PUT", 
     data: requestData, 
     processData: false, 
     beforeSend: function(xhr) { 
      xhr.setRequestHeader('x-ms-blob-type', 'BlockBlob'); 
      xhr.setRequestHeader('x-ms-blob-cache-control', "public, max-age=864000"); 
     }, 
     success: function(data, status) { 
      self.UpdateProgress(requestData.length); 
      self.bytesUploaded += requestData.length; 
      if (parseFloat(self.bytesUploaded) == parseFloat(self.file.size)) { 
       self.CommitBlocks(); 
      } 
     }, 
     error: function(xhr, desc, err) { 
      // console.log(desc); 
      // console.log(err); 
      self.Error("Unexpected error occured while uploading model. Plaese try after some time"); 
     } 
    }); 
}; 

AzureFileUpload.prototype.pad = function(number, length){ 
    var str = '' + number; 
    while (str.length < length) { 
     str = '0' + str; 
    } 
    return str; 
}; 

AzureFileUpload.prototype.ReadBlock = function(){ 
    if (this.totalBytesRemaining > 0) { 
     var fileContent = this.file.slice(this.currentFilePointer, this.currentFilePointer + this.maxBlockSize); 
     var blockId = "block-" + this.file.name + "-" + this.pad(this.blockIds.length, 6); 
     this.blockIds.push(btoa(blockId)); 
     this.reader.readAsArrayBuffer(fileContent); 
     this.currentFilePointer += this.maxBlockSize; 
     this.totalBytesRemaining -= this.maxBlockSize; 
     if (this.totalBytesRemaining < this.maxBlockSize) { 
      this.maxBlockSize = this.totalBytesRemaining; 
     } 
    } 
}; 

AzureFileUpload.prototype.UpdateProgress = function(bytesUploaded){ 
    console.log("Progress",bytesUploaded); 
    if(this.progressCallback){ 
     this.progressCallback(bytesUploaded); 
    } 
}; 

AzureFileUpload.prototype.CommitBlocks = function(){ 
    var self = this; 
    var uri = this.uploadUrl + '&comp=blocklist'; 
    var request = '<?xml version="1.0" encoding="utf-8"?><BlockList>'; 
    for (var i = 0; i < this.blockIds.length; i++) { 
     request += '<Latest>' + this.blockIds[i] + '</Latest>'; 
    } 
    request += '</BlockList>'; 
    $.ajax({ 
     url: uri, 
     type: "PUT", 
     data: request, 
     beforeSend: function(xhr) { 
      xhr.setRequestHeader('x-ms-blob-content-type', self.file.type); 
      xhr.setRequestHeader('x-ms-blob-cache-control', "public, max-age=864000"); 
     }, 
     success: function(data, status) { 
      console.log("Block Commited", data); 
      if(self.successCallback){ 
       self.successCallback(); 
      } 
     }, 
     error: function(xhr, desc, err) { 
      self.Error("Unexpected error occured while uploading model. Plaese try after some time"); 
     } 
    }); 
}; 

AzureFileUpload.prototype.Error = function(msg){ 
    this.CancelUpload(); 
    if(this.errorCallback){ 
     this.errorCallback(msg); 
    } 
}; 

AzureFileUpload.prototype.CancelUpload = function(){ 
    this.uploadFlag = false; 
}; 

Answer 1

问题是与下面的行的代码的功能：

var blockId = "block-" + this.file.name + "-" + this.pad(this.blockIds.length, 6); 

实质上的块ID的最大长度可以是64个字节（参考文献：https://docs.microsoft.com/en-us/rest/api/storageservices/put-block - 见URI参数部分）。因为你包括块ID计算文件名和文件名是大的，你超过这个限制。

请与下面的代码行尝试，你不应该得到这个错误：

var blockId = "block-" + this.pad(this.blockIds.length, 6); 

请注意，块IDS程序属于一个blob所以它是不是真的有必要为你包括BLOB名称使blob独有的块ID。