Exemple #1
0
        public void UploadCopyBlobWithPremiumPageBlobTier()
        {
            string xIOStorageConnectionString = Test.Data.Get("XIOStorageConnectionString");

            PowerShellAgent.SetStorageContext(xIOStorageConnectionString);

            string             filePath      = FileUtil.GenerateOneTempTestFile();
            CloudBlobClient    xIOBlobClient = CloudStorageAccount.Parse(xIOStorageConnectionString).CreateCloudBlobClient();
            CloudBlobContainer container     = xIOBlobClient.GetContainerReference(Utility.GenNameString("container"));

            container.CreateIfNotExists();

            string blobName  = Utility.GenNameString("blob");
            string blobName2 = Utility.GenNameString("blob");
            string blobName3 = Utility.GenNameString("blob");

            try
            {
                //Create local file
                string localMD5 = FileUtil.GetFileContentMD5(filePath);

                //upload
                Test.Assert(CommandAgent.SetAzureStorageBlobContent(filePath, container.Name, StorageBlob.BlobType.PageBlob, blobName, true, premiumPageBlobTier: PremiumPageBlobTier.P20), "upload a blob name with premiumPageBlobTier should succeed");
                CloudPageBlob blob = container.GetPageBlobReference(blobName);
                blob.FetchAttributes();

                ////The check MD5 code are comment, and add code to set contentMD5 since a bug in server that set blob tier will clear contentMD5. Will revert it when the bug fixed.
                //ExpectEqual(localMD5, blob.Properties.ContentMD5, "content md5");
                blob.Properties.ContentMD5 = localMD5;
                blob.SetProperties();

                Test.Assert(PremiumPageBlobTier.P20 == blob.Properties.PremiumPageBlobTier, "PremiumPageBlobTier shoud match: {0} == {1}", PremiumPageBlobTier.P20, blob.Properties.PremiumPageBlobTier);

                //Copy 1
                Test.Assert(CommandAgent.StartAzureStorageBlobCopy(container.Name, blobName, container.Name, blobName2, premiumPageBlobTier: PremiumPageBlobTier.P30), "upload a blob name with premiumPageBlobTier should succeed");
                blob = container.GetPageBlobReference(blobName2);
                blob.FetchAttributes();

                ExpectEqual(localMD5, blob.Properties.ContentMD5, "content md5");
                Test.Assert(PremiumPageBlobTier.P30 == blob.Properties.PremiumPageBlobTier, "PremiumPageBlobTier shoud match: {0} == {1}", PremiumPageBlobTier.P30, blob.Properties.PremiumPageBlobTier);

                //Copy 2
                Test.Assert(CommandAgent.StartAzureStorageBlobCopy(blob, container.Name, blobName3, premiumPageBlobTier: PremiumPageBlobTier.P4), "upload a blob name with premiumPageBlobTier should succeed");
                blob = container.GetPageBlobReference(blobName3);
                blob.FetchAttributes();

                ExpectEqual(localMD5, blob.Properties.ContentMD5, "content md5");
                Test.Assert(PremiumPageBlobTier.P4 == blob.Properties.PremiumPageBlobTier, "PremiumPageBlobTier shoud match: {0} == {1}", PremiumPageBlobTier.P4, blob.Properties.PremiumPageBlobTier);
            }
            finally
            {
                string StorageConnectionString = Test.Data.Get("StorageConnectionString");
                PowerShellAgent.SetStorageContext(StorageConnectionString);
                container.DeleteIfExists();
                FileUtil.RemoveFile(filePath);
            }
        }
        public void RemoveSnapshot()
        {
            string             containerName = Utility.GenNameString("container");
            string             blobName      = Utility.GenNameString("blob");
            CloudBlobContainer container     = blobUtil.CreateContainer(containerName);

            try
            {
                ICloudBlob        blob  = blobUtil.CreatePageBlob(container, blobName);
                List <ICloudBlob> blobs = new List <ICloudBlob>();
                blob.FetchAttributes();

                int count = random.Next(1, 5);
                for (int i = 0; i < count; i++)
                {
                    CloudPageBlob snapshot = ((CloudPageBlob)blob).CreateSnapshot();
                    snapshot.FetchAttributes();
                    blobs.Add(snapshot);
                }

                blobs.Add(blob);
                List <IListBlobItem> blobLists = container.ListBlobs(string.Empty, true, BlobListingDetails.All).ToList();
                Test.Assert(blobLists.Count == blobs.Count, string.Format("container {0} should contain {1} blobs, and actually it contain {2} blobs", containerName, blobs.Count, blobLists.Count));
                Test.Assert(agent.RemoveAzureStorageBlob(blobName, containerName, true), Utility.GenComparisonData("Remove-AzureStorageBlob and snapshot", true));
                blobLists = container.ListBlobs(string.Empty, true, BlobListingDetails.All).ToList();
                Test.Assert(blobLists.Count == 1, string.Format("container {0} should contain {1} blobs", containerName, 1));
                ICloudBlob remainBlob = blobLists[0] as ICloudBlob;
                Test.Assert(blob.Name == remainBlob.Name, string.Format("Blob name should be {0}, and actually it's {1}", blob.Name, remainBlob.Name));
                Test.Assert(null == remainBlob.SnapshotTime, "snapshot time should be null");
            }
            finally
            {
                blobUtil.RemoveContainer(containerName);
            }
        }
Exemple #3
0
        private async Task <bool> WaitForStatus(CloudBlobContainer container, string blobName)
        {
            DateTime startWait = DateTime.UtcNow;

            while (true)
            {
                try
                {
                    CloudPageBlob blob = container.GetPageBlobReference(blobName);
                    blob.FetchAttributes();
                    if (blob.Metadata.ContainsKey("status") && blob.Metadata.ContainsKey("heartbeat"))
                    {
                        return(true);
                    }

                    DateTime endWait  = DateTime.UtcNow;
                    TimeSpan duration = endWait - startWait;
                    if (duration.TotalSeconds > 20)
                    {
                        this.SetException(new ApplicationException("Job never put attributes in heartbeat"));
                        return(false);
                    }

                    await Task.Delay(1000);
                }
                catch (Exception e)
                {
                    this.SetException(new ApplicationException("Failed waiting for heartbeat attributes", e));
                    return(false);
                }
            }
        }
        public static long GetActualDiskSizeAsync(this CloudPageBlob pageBlob, long range = 5 /* default is 5 GB */)
        {
            pageBlob.FetchAttributes();
            long   pageBlobSize = 0;
            Object _Lock        = new Object();

            long rangeSize = range * 1024 * 1024 * 1024;

            List <long> offsetList  = new List <long>();
            long        startOffset = 0;

            while (startOffset < pageBlob.Properties.Length)
            {
                offsetList.Add(startOffset);
                startOffset += rangeSize;
            }

            // add blob name size and metadata size
            pageBlobSize += (124 + pageBlob.Name.Length * 2 + pageBlob.Metadata.Sum(m => m.Key.Length + m.Value.Length + 3));

            Parallel.ForEach(offsetList, (currentOffset) =>
            {
                long tmp = pageBlob.GetPageRanges(currentOffset, rangeSize).Sum(r => 12 + (r.EndOffset - r.StartOffset));
                lock (_Lock)
                {
                    pageBlobSize += tmp;
                }
                // Console.WriteLine("Process {0} on thread {1}: {2}", currentOffset, Thread.CurrentThread.ManagedThreadId, GetFormattedDiskSize(pageBlobSize));
            });
            Task.WaitAll();
            return(pageBlobSize);
        }
Exemple #5
0
        private IEnumerable <IndexRange> GetPageRanges()
        {
            pageBlob.FetchAttributes(new AccessCondition(), blobRequestOptions);
            IEnumerable <PageRange> pageRanges = pageBlob.GetPageRanges(null, null, new AccessCondition(), blobRequestOptions);

            pageRanges.OrderBy(range => range.StartOffset);
            return(pageRanges.Select(pr => new IndexRange(pr.StartOffset, pr.EndOffset)));
        }
Exemple #6
0
        public long Read()
        {
            _blob.FetchAttributes();
            var s = _blob.Metadata["committedsize"];
            //Log.Debug("Checkpoint were '{0}'", s ?? "N/A");
            var read = Int64.Parse(s ?? "0");

            return(read);
        }
        /// <summary>
        /// Tries to resize the VHD file, using the parameters specified.
        /// </summary>
        /// <param name="newSizeInGb">The new size of the VHD file, in gigabytes.</param>
        /// <param name="blobUri">The <see cref="Uri"/> to locate the VHD in the Azure Storage account.</param>
        /// <param name="accountName">The name of the Azure Storage account.</param>
        /// <param name="accountKey">The key of the Azure Storage account.</param>
        /// <returns>Returns <see cref="ResizeResult.Error"/> if there were issues while trying to do the resize operation.
        /// Returns <see cref="ResizeResult.Shrink"/> if this is a shrink operation which needs user confirmation.
        /// Returns <see cref="ResizeResult.Success"/> if everything went fine.</returns>
        public ResizeResult ResizeVhdBlob(int newSizeInGb, Uri blobUri, string accountName, string accountKey)
        {
            NewSize = ByteSize.FromGigaBytes(newSizeInGb);

            // Check if blob exists
            blob = new CloudPageBlob(blobUri);
            if (!string.IsNullOrEmpty(accountName) && !string.IsNullOrEmpty(accountKey))
            {
                blob = new CloudPageBlob(blobUri, new StorageCredentials(accountName, accountKey));
            }
            try
            {
                if (!blob.Exists())
                {
                    Console.WriteLine("The specified blob does not exist.");
                    return(ResizeResult.Error);
                }
            }
            catch (StorageException ex)
            {
                Console.WriteLine("The specified storage account credentials are invalid. " + ex.ToString());
                return(ResizeResult.Error);
            }

            // Determine blob attributes
            Console.WriteLine("[{0}] Determining blob size...", DateTime.Now.ToShortTimeString());
            blob.FetchAttributes();
            originalLength = blob.Properties.Length;

            // Read current footer
            Console.WriteLine("[{0}] Reading VHD file format footer...", DateTime.Now.ToShortTimeString());
            footer = new byte[512];
            using (var stream = new MemoryStream())
            {
                blob.DownloadRangeToStream(stream, originalLength - 512, 512);
                stream.Position = 0;
                stream.Read(footer, 0, 512);
                stream.Close();
            }

            footerInstance = Footer.FromBytes(footer, 0);

            // Make sure this is a "fixed" disk
            if (footerInstance.DiskType != FileType.Fixed)
            {
                Console.WriteLine("The specified VHD blob is not a fixed-size disk. WindowsAzureDiskResizer can only resize fixed-size VHD files.");
                return(ResizeResult.Error);
            }
            if (footerInstance.CurrentSize >= (long)NewSize.Bytes)
            {
                // The specified VHD blob is larger than the specified new size. Shrinking disks is a potentially dangerous operation
                // Ask the user for confirmation
                return(ResizeResult.Shrink);
            }
            return(DoResizeVhdBlob());
        }
        public static byte[] GetBlobMd5Hash(this CloudPageBlob blob, BlobRequestOptions requestOptions)
        {
            blob.FetchAttributes(new AccessCondition(), requestOptions);
            if (String.IsNullOrEmpty(blob.Properties.ContentMD5))
            {
                return(null);
            }

            return(Convert.FromBase64String(blob.Properties.ContentMD5));
        }
        public static byte[] GetBlobMd5Hash(this CloudPageBlob blob)
        {
            blob.FetchAttributes();
            if (String.IsNullOrEmpty(blob.Properties.ContentMD5))
            {
                return(null);
            }

            return(Convert.FromBase64String(blob.Properties.ContentMD5));
        }
Exemple #10
0
        public void GetSnapshotBlobs()
        {
            string containerName = Utility.GenNameString("container");
            string pageBlobName  = Utility.GenNameString("page");
            string blockBlobName = Utility.GenNameString("block");

            Test.Info("Create test container and blobs");
            CloudBlobContainer container = blobUtil.CreateContainer(containerName);

            try
            {
                ICloudBlob        pageBlob  = blobUtil.CreatePageBlob(container, pageBlobName);
                ICloudBlob        blockBlob = blobUtil.CreateBlockBlob(container, blockBlobName);
                List <ICloudBlob> blobs     = new List <ICloudBlob>();
                pageBlob.FetchAttributes();
                blockBlob.FetchAttributes();

                int minSnapshot      = 1;
                int maxSnapshot      = 5;
                int count            = random.Next(minSnapshot, maxSnapshot);
                int snapshotInterval = 1 * 1000;

                Test.Info("Create random snapshot for specified blobs");

                for (int i = 0; i < count; i++)
                {
                    CloudBlockBlob snapshot = ((CloudBlockBlob)blockBlob).CreateSnapshot();
                    snapshot.FetchAttributes();
                    blobs.Add(snapshot);
                    Thread.Sleep(snapshotInterval);
                }

                blobs.Add(blockBlob);
                count = random.Next(minSnapshot, maxSnapshot);
                for (int i = 0; i < count; i++)
                {
                    CloudPageBlob snapshot = ((CloudPageBlob)pageBlob).CreateSnapshot();
                    snapshot.FetchAttributes();
                    blobs.Add(snapshot);
                    Thread.Sleep(snapshotInterval);
                }

                blobs.Add(pageBlob);

                Test.Assert(agent.GetAzureStorageBlob(string.Empty, containerName), Utility.GenComparisonData("Get-AzureStorageBlob with snapshot blobs", true));
                Test.Assert(agent.Output.Count == blobs.Count, String.Format("Expect to retrieve {0} blobs, actually retrieved {1} blobs", blobs.Count, agent.Output.Count));
                agent.OutputValidation(blobs);
            }
            finally
            {
                blobUtil.RemoveContainer(containerName);
            }
        }
Exemple #11
0
        /// <summary>
        /// refetches the blob attributes.  this only needs to be done when fresher attributes
        /// than fetched when the wrapped page was first created
        /// </summary>
        /// <param name="accessCondition">the access condition</param>
        public void RefetchAttributes(bool disregardConcurrency)
        {
            try
            {
                var accessCondition = disregardConcurrency ? null : AccessCondition.GenerateIfMatchCondition(_pageBlob.Properties.ETag);

                Logger.Verbose("Fetching attributes for blob [{0}]", _pageBlob.Uri);
                _pageBlob.FetchAttributes(accessCondition);
            }
            catch (AzureStorage.StorageException ex)
            { throw HandleAndRemapCommonExceptions(ex); }
        }
        public static void DownloadVHDFromCloud(CloudBlobClient blobStorage, string containerName, string blobName)
        {
            CloudBlobContainer container = blobStorage.GetContainerReference(containerName);
            CloudPageBlob      pageBlob  = container.GetPageBlobReference(blobName);

            // Get the length of the blob
            pageBlob.FetchAttributes();
            long vhdLength       = pageBlob.Properties.Length;
            long totalDownloaded = 0;

            Console.WriteLine("Vhd size:  " + Megabytes(vhdLength));

            // Create a new local file to write into
            FileStream fileStream = new FileStream(blobName, FileMode.Create, FileAccess.Write);

            fileStream.SetLength(128 * OneMegabyteAsBytes);

            // Download the valid ranges of the blob, and write them to the file
            IEnumerable <PageRange> pageRanges = pageBlob.GetPageRanges();
            Stream blobStream = pageBlob.OpenRead();

            foreach (PageRange range in pageRanges)
            {
                // EndOffset is inclusive... so need to add 1
                int rangeSize = (int)(range.EndOffset + 1 - range.StartOffset);

                // Chop range into 4MB chucks, if needed
                for (int subOffset = 0; subOffset < rangeSize; subOffset += FourMegabyteAsBytes)
                {
                    int subRangeSize = Math.Min(rangeSize - subOffset, FourMegabyteAsBytes);
                    blobStream.Seek(range.StartOffset + subOffset, SeekOrigin.Begin);
                    fileStream.Seek(range.StartOffset + subOffset, SeekOrigin.Begin);

                    Console.WriteLine("Range: ~" + Megabytes(range.StartOffset + subOffset)
                                      + " + " + PrintSize(subRangeSize));
                    byte[] buffer = new byte[subRangeSize];

                    blobStream.Read(buffer, 0, subRangeSize);
                    fileStream.Write(buffer, 0, subRangeSize);
                    totalDownloaded += subRangeSize;
                    if (totalDownloaded > 128 * OneMegabyteAsBytes)
                    {
                        break;
                    }
                }
                if (totalDownloaded > 128 * OneMegabyteAsBytes)
                {
                    break;
                }
            }
            Console.WriteLine("Downloaded " + Megabytes(totalDownloaded) + " of " + Megabytes(vhdLength));
        }
Exemple #13
0
        private async Task <JobStatus> WaitForExit(CloudBlobContainer container, string blobName)
        {
            try
            {
                TimeSpan offset;

                {
                    CloudPageBlob blob = container.GetPageBlobReference(blobName);
                    blob.FetchAttributes();
                    DateTime lastValue = DateTime.Parse(blob.Metadata["heartbeat"]);
                    offset = DateTime.UtcNow - lastValue;
                }

                while (true)
                {
                    CloudPageBlob blob = container.GetPageBlobReference(blobName);
                    blob.FetchAttributes();
                    if (blob.Metadata["status"] == "success")
                    {
                        return(JobStatus.Success);
                    }
                    else if (blob.Metadata["status"] == "failure")
                    {
                        return(JobStatus.Failure);
                    }
                    else if (blob.Metadata["status"] == "killed")
                    {
                        return(JobStatus.Cancelled);
                    }

                    DateTime newValue = DateTime.Parse(blob.Metadata["heartbeat"]);
                    DateTime adjusted = newValue + offset;

                    TimeSpan staleness = DateTime.UtcNow - adjusted;

                    if (staleness.TotalSeconds > 20)
                    {
                        this.SetException(new ApplicationException("Job stopped writing heartbeats"));
                        return(JobStatus.Cancelled);
                    }

                    await Task.Delay(2 * 1000);
                }
            }
            catch (Exception e)
            {
                this.SetException(new ApplicationException("Failed waiting for completion", e));
                return(JobStatus.Cancelled);
            }
        }
        /// <summary>
        /// Returns the size of the VHD file specified, in bytes.
        /// </summary>
        /// <param name="vhdFileUri">The location of the VHD file in the storage account, as a <see cref="Uri"/> object.</param>
        /// <param name="useDevelopment">True to use the Azure Storage Emulator, False to connect to the storage account using the other parameters.</param>
        /// <param name="accountName">The name of the account to use, if useDevelopment is false.</param>
        /// <param name="accountKey">The key of the account to use, if useDevelopment is false.</param>
        /// <returns></returns>
        public static long GetVhdSizeInContainer(Uri vhdFileUri, bool useDevelopment = true, string accountName = null, string accountKey = null)
        {
            var account = GetStorageAccount(useDevelopment, accountName, accountKey);
            var client  = account.CreateCloudBlobClient();
            var blob    = new CloudPageBlob(vhdFileUri, client);

            if (blob.Exists())
            {
                blob.FetchAttributes();
                return(blob.Properties.Length);
            }
            else
            {
                return(0L);
            }
        }
Exemple #15
0
        private void PopulateCache()
        {
            if (this.blocks == null)
            {
                this.blocks = new Dictionary <string, long>();
                this.pages  = new Dictionary <string, long>();

                // can happen when we are looking at cached results
                if (this.client == null)
                {
                    return;
                }

                var cloudBlobdir = this.client.Container.GetDirectoryReference(this.path);
                var blobs        = cloudBlobdir.ListBlobs();
                foreach (IListBlobItem item in blobs)
                {
                    if (item is CloudBlockBlob)
                    {
                        CloudBlockBlob blob = (CloudBlockBlob)item;
                        blocks.Add(blob.Name, blob.Properties.Length);
                    }
                    else if (item is CloudPageBlob)
                    {
                        CloudPageBlob pageBlob = (CloudPageBlob)item;
                        // not accurate
                        //pages.Add(pageBlob.Name, pageBlob.Properties.Length);
                        pageBlob.FetchAttributes();
                        var metadata = pageBlob.Metadata;
                        if (metadata.ContainsKey("writePosition"))
                        {
                            long sz;
                            if (long.TryParse(metadata["writePosition"], out sz))
                            {
                                pages.Add(pageBlob.Name, sz);
                            }
                        }
                    }
                    else if (item is CloudBlobDirectory)
                    {
                        //CloudBlobDirectory directory = (CloudBlobDirectory)item;
                    }
                }
            }
        }
 /// <summary>
 /// Returns true if the blob exists, false otherwise
 /// </summary>
 /// <param name="blob"></param>
 /// <returns></returns>
 public static bool Exists(this CloudPageBlob blob)
 {
     try
     {
         blob.FetchAttributes();
         return(true);
     }
     catch (StorageClientException e)
     {
         if (e.ErrorCode == StorageErrorCode.ResourceNotFound)
         {
             Trace.TraceWarning("CloudPageBlob {0} was not found due to StorageClientException {1}", blob.Uri, e);
             return(false);
         }
         Trace.TraceError("Unexecpted exception checking existence of CloudPageBlob {0} : {1}", blob.Uri, e);
         throw;
     }
 }
        public void StorageExceptionVerifyXml()
        {
            Uri                baseAddressUri = new Uri(TestBase.TargetTenantConfig.BlobServiceEndpoint);
            CloudBlobClient    client         = new CloudBlobClient(baseAddressUri, TestBase.StorageCredentials);
            CloudBlobContainer container      = client.GetContainerReference(Guid.NewGuid().ToString("N"));

            try
            {
                container.Create();

                CloudBlockBlob blob = container.GetBlockBlobReference("blob1");

                byte[] buffer = new byte[1024];
                Random random = new Random();
                random.NextBytes(buffer);

                using (MemoryStream stream = new MemoryStream(buffer))
                {
                    blob.UploadFromStream(stream);
                }

                CloudPageBlob    blob2 = container.GetPageBlobReference("blob1");
                StorageException e     = TestHelper.ExpectedException <StorageException>(
                    () => blob2.FetchAttributes(),
                    "Fetching attributes of a block blob using a page blob reference should fail");

                using (Stream s = new MemoryStream())
                {
                    BinaryFormatter formatter = new BinaryFormatter();
                    formatter.Serialize(s, e);
                    s.Position = 0; // Reset stream position
                    StorageException e2 = (StorageException)formatter.Deserialize(s);

                    Assert.IsInstanceOfType(e2.InnerException, typeof(InvalidOperationException));
                    Assert.AreEqual(e.IsRetryable, e2.IsRetryable);
                    Assert.AreEqual(e.RequestInformation.HttpStatusCode, e2.RequestInformation.HttpStatusCode);
                    Assert.AreEqual(e.RequestInformation.HttpStatusMessage, e2.RequestInformation.HttpStatusMessage);
                }
            }
            finally
            {
                container.DeleteIfExists();
            }
        }
        // public static long pageBlobSize = 0;
        /// <summary>
        /// Based on this script: http://gallery.technet.microsoft.com/scriptcenter/Get-Billable-Size-of-32175802
        /// </summary>
        /// <returns></returns>
        public static long GetActualDiskSize(this CloudPageBlob pageBlob, bool PageRange = false)
        {
            pageBlob.FetchAttributes();

            if (PageRange)
            {
                long pageBlobSize = 0;
                long startOffset  = 0;
                long rangeSize    = 1024 * 1024 * 1024; //1 GB
                Console.Write("Calculating...");
                while (startOffset < pageBlob.Properties.Length)
                {
                    pageBlobSize += pageBlob.GetPageRanges(startOffset, rangeSize).Sum(r => 12 + (r.EndOffset - r.StartOffset));
                    startOffset  += rangeSize;
                    Console.Write("...");
                }

                return(124 + pageBlob.Name.Length * 2 + pageBlob.Metadata.Sum(m => m.Key.Length + m.Value.Length + 3) + pageBlobSize);
            }
            else
            {
                return(124 + pageBlob.Name.Length * 2 + pageBlob.Metadata.Sum(m => m.Key.Length + m.Value.Length + 3) + pageBlob.GetPageRanges().Sum(r => 12 + (r.EndOffset - r.StartOffset)));
            }
        }
Exemple #19
0
        private static void Download(string accountName, string accountKey, string containerName, string blobName, string localFilePath, int segmentSize, int delayBeetweenChunksInSeconds)
        {
            var           cloudStorageAccount = CloudStorageAccount.Parse("DefaultEndpointsProtocol=https;AccountName=" + accountName + ";AccountKey=" + accountKey);
            var           blobContainer       = cloudStorageAccount.CreateCloudBlobClient().GetContainerReference(containerName);
            CloudPageBlob blob = blobContainer.GetPageBlobReference(blobName);

            blob.FetchAttributes();

            long startPosition = 0;

            if (File.Exists(localFilePath))
            {
                log.AddLine("Local file exists. Resuming download...");
                using (FileStream fs = new FileStream(localFilePath, FileMode.Open))
                {
                    fs.Seek(0, SeekOrigin.End);
                    startPosition = fs.Position;
                }
            }

            long blobLength          = blob.Properties.Length;
            var  blobLengthRemaining = blobLength - startPosition;

            DateTime momentBeforeRead = DateTime.Now;

            double   percentDone         = 0;
            TimeSpan timeForOneRead      = new TimeSpan(0);
            double   speedBytesPerSecond = 0;
            TimeSpan timeRemaining       = new TimeSpan(0);
            int      secondsRemaining    = 0;

            timeoutTimer = new Timer(Timer_Tick, null, Timeout.Infinite, Timeout.Infinite);
            while (blobLengthRemaining > 0)
            {
                long   blockSize    = Math.Min(segmentSize, blobLengthRemaining);
                byte[] blobContents = new byte[blockSize];
                using (MemoryStream ms = new MemoryStream())
                {
                    timeoutTimer.Change(new TimeSpan(0, 0, 10), new TimeSpan(0, 0, 10));
                    blob.DownloadRangeToStream(ms, startPosition, blockSize);
                    timeoutTimer.Change(Timeout.Infinite, Timeout.Infinite);

                    ms.Position = 0;
                    ms.Read(blobContents, 0, blobContents.Length);
                    using (FileStream fs = new FileStream(localFilePath, FileMode.OpenOrCreate))
                    {
                        fs.Position = startPosition;
                        fs.Write(blobContents, 0, blobContents.Length);
                    }
                }
                startPosition       += blockSize;
                blobLengthRemaining -= blockSize;

                //blobLength:100=startPosition:x
                percentDone         = startPosition * 100 / blobLength;
                timeForOneRead      = DateTime.Now.Subtract(momentBeforeRead);
                momentBeforeRead    = DateTime.Now;
                speedBytesPerSecond = blockSize / timeForOneRead.TotalSeconds;
                secondsRemaining    = (int)Math.Round(blobLengthRemaining / speedBytesPerSecond);
                timeRemaining       = new TimeSpan(0, 0, secondsRemaining);

                Console.SetCursorPosition(0, 19);
                Console.WriteLine("                                                                                                                                                             ");
                Console.SetCursorPosition(0, 19);
                log.AddLine(string.Format("{0}%, {1}/{2} bytes, {3} kbytes/sec, remaining (dd:hh:mm:ss): {4}:{5}:{6}:{7}",
                                          percentDone,
                                          startPosition,
                                          blobLength,
                                          Math.Round(speedBytesPerSecond / 1024, 2),
                                          timeRemaining.Days,
                                          timeRemaining.Hours,
                                          timeRemaining.Minutes,
                                          timeRemaining.Seconds
                                          )
                            );


                attempt = 1;

                if (delayBeetweenChunksInSeconds > 0)
                {
                    Thread.Sleep(delayBeetweenChunksInSeconds);
                }
            }
        }
Exemple #20
0
        private static async Task PageBlobProcessAsync()
        {
            CloudStorageAccount storageAccount = null;

            CloudBlobContainer cloudBlobContainer = null;



            // Retrieve the connection string for use with the application. The storage connection string is stored

            // in an environment variable on the machine running the application called storageconnectionstring.

            // If the environment variable is created after the application is launched in a console or with Visual

            // Studio, the shell needs to be closed and reloaded to take the environment variable into account.

            string storageConnectionString = ConfigurationManager.AppSettings["StorageConnectionString"]; //Environment.GetEnvironmentVariable("StorageConnectionString");


            //storageAccount = CloudStorageAccount.DevelopmentStorageAccount;

            // Check whether the connection string can be parsed.

            if (CloudStorageAccount.TryParse(storageConnectionString, out storageAccount))
            {
                try

                {
                    // Create the CloudBlobClient that represents the Blob storage endpoint for the storage account.

                    CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();

                    //127.0.0.1:10000/devstoreaccount1/testcont

                    // Create a container called 'quickstartblobs' and append a GUID value to it to make the name unique.

                    cloudBlobContainer = cloudBlobClient.GetContainerReference("testcontpageblob");// "quickstartblobs" + Guid.NewGuid().ToString());

                    await cloudBlobContainer.CreateIfNotExistsAsync();

                    Console.WriteLine("Created container '{0}'", cloudBlobContainer.Name);

                    Console.WriteLine();



                    // Set the permissions so the blobs are public.

                    BlobContainerPermissions permissions = new BlobContainerPermissions

                    {
                        PublicAccess = BlobContainerPublicAccessType.Blob
                    };

                    await cloudBlobContainer.SetPermissionsAsync(permissions);



                    byte[] data = new byte[512];
                    Random rnd  = new Random();
                    rnd.NextBytes(data);


                    // Get a reference to the blob address, then upload the file to the blob.

                    // Use the value of localFileName for the blob name.

                    CloudPageBlob cloudPageBlob = cloudBlobContainer.GetPageBlobReference("SamplePage");
                    cloudPageBlob.Create(512);


                    cloudPageBlob.WritePages(new MemoryStream(data), 0);


                    // List the blobs in the container.

                    Console.WriteLine("Listing blobs in container.");

                    BlobContinuationToken blobContinuationToken = null;

                    do

                    {
                        var results = await cloudBlobContainer.ListBlobsSegmentedAsync(null, blobContinuationToken);

                        // Get the value of the continuation token returned by the listing call.

                        blobContinuationToken = results.ContinuationToken;

                        foreach (IListBlobItem item in results.Results)

                        {
                            Console.WriteLine(item.Uri);
                        }
                    } while (blobContinuationToken != null); // Loop while the continuation token is not null.

                    Console.WriteLine("Read the PageRanges");

                    cloudPageBlob.FetchAttributes();
                    Console.WriteLine("Blob length = {0}", cloudPageBlob.Properties.Length);

                    IEnumerable <PageRange> ranges = cloudPageBlob.GetPageRanges();
                    Console.Write("{0}:<", "Writing Data From PageBlob");
                    foreach (PageRange range in ranges)
                    {
                        Console.Write("[{0}-{1}]", range.StartOffset, range.EndOffset);
                    }
                    Console.WriteLine(">");


                    Console.WriteLine("Delete the PageBlob");
                    await cloudPageBlob.DeleteAsync();
                }

                catch (StorageException ex)

                {
                    Console.WriteLine("Error returned from the service: {0}", ex.Message);
                }

                finally

                {
                    // Console.WriteLine("Press any key to delete the sample files and example container.");

                    Console.ReadLine();

                    // Clean up resources. This includes the container and the two temp files.

                    //Console.WriteLine("Deleting the container and any blobs it contains");

                    if (cloudBlobContainer != null)
                    {
                        // await cloudBlobContainer.DeleteIfExistsAsync();
                    }
                }
            }

            else

            {
                Console.WriteLine(

                    "A connection string has not been defined in the system environment variables. " +

                    "Add a environment variable named 'storageconnectionstring' with your storage " +

                    "connection string as a value.");
            }
        }
 /// <summary>
 /// Based on this script: http://gallery.technet.microsoft.com/scriptcenter/Get-Billable-Size-of-32175802
 /// </summary>
 /// <returns></returns>
 public static long GetActualDiskSize(this CloudPageBlob pageBlob)
 {
     pageBlob.FetchAttributes();
     return(124 + pageBlob.Name.Length * 2 + pageBlob.Metadata.Sum(m => m.Key.Length + m.Value.Length + 3) + pageBlob.GetPageRanges().Sum(r => 12 + (r.EndOffset - r.StartOffset)));
 }