关于CloudBlockblob.putBlock和CloudBlockBlob.PutBlockList

时间:2012-10-11 05:39:17

标签: azure blob

我知道我们可以使用CloudBlockblob.putBlockCloudBlockBlob.PutBlockList上传块,但这些方法没有租约ID参数。

为此,我可以使用标题"x-ms-lease-id"形成httpwebrequest并附加到CloudBlockblob.putBlockCloudBlockBlob.PutBlockList


嗨Gaurav,我无法对你的回复发表评论,因此加入了它。

我尝试使用BlobRequest.PutBlock和Blobrequest.PutBlock,代码如下:

`for(int idxThread = 0; idxThread< numThreads; idxThread ++)                 {                     tasks.Add(Task.Factory.StartNew(()=>                     {                         KeyValuePair blockIdAndLength;

                    while (true)
                    {

                        lock (queue)
                        {
                            if (queue.Count == 0)
                                break;

                            blockIdAndLength = queue.Dequeue();
                        }

                        byte[] buff = new byte[blockIdAndLength.Value];

                        //copying chunks into buff from inputbyte array
                        Array.Copy(buffer, blockIdAndLength.Key * (long)blockIdAndLength.Value, buff, 0, blockIdAndLength.Value);


                        // Upload block.
                        string blockName = Convert.ToBase64String(BitConverter.GetBytes(
                            blockIdAndLength.Key));


                             //string blockIdString = Convert.ToBase64String(ASCIIEncoding.ASCII.GetBytes(string.Format("BlockId{0}", blockIdAndLength.Key.ToString("0000000"))));


                        /// For small files like 100 KB it works files,for large files like 10 MB,it will end up uploading only 2-3 MB
                        /// //Is there any better way to implement Uploading in chunks and leasing.
                        /// 
                             string url = blob.Uri.ToString();
                             if (blob.ServiceClient.Credentials.NeedsTransformUri)
                             {
                                 url = blob.ServiceClient.Credentials.TransformUri(url);
                             }
                             var req = BlobRequest.Put(new Uri(url), 90, new BlobProperties(), BlobType.BlockBlob, leaseId, 0);
                             using (Stream writer = req.GetRequestStream())
                             {
                                 writer.Write(buff,0,buff.Length);
                             }
                             blob.ServiceClient.Credentials.SignRequest(req);
                             req.GetResponse().Close();                                                           

                    }

                }));

            }
            // Wait for all threads to complete uploading data.
            Task.WaitAll(tasks.ToArray());`

这不适用于多个块。请提供您的输入

1 个答案:

答案 0 :(得分:0)

我认为你不能。但是,请查看BlobRequest命名空间中的Microsoft.WindowsAzure.StorageClient.Protocol类。它具有PutBlockPutBlockList功能,允许您指定LeaseId。

希望这有帮助。