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  An updated Know Issues Blog Post can be found by clicking on this link The client issues detailed in this blog have been resolved in version 2.0.4 or earlier, and you can obtain the latest NuGet Package here . We recently released the 2.0 version of the Windows Azure Storage Client Library. This...

This blog applies to the 2011-08-18 storage version or earlier of the Copy Blob API and the Windows Azure Storage Client Library version 1.6. Two separate problems are discussed in this blog: Over REST, the service expects the ‘+’ character appearing as part of the x-ms-copy-source header to be percent...

Description and Symptoms We have identified an issue that would affect services using Windows Azure Tables whenever the percent character ‘%’ appears as part of the PartitionKey or RowKey. The affected APIs are GET entity, Merge Entity, Update Entity, Delete Entity, Insert Or Merge Entity and Insert...

Windows Azure Drive is in Preview, and we recently identified a timing bug in the CloudDrive Client Library (SDK 1.6 and earlier) which can cause your CloudDrive to be accidentally deleted when you call ‘Create()’ or ‘CreateIfNotExist()’ on an existing drive. For your existing drive to be accidently...

Windows Azure Drive is in Preview, and we have identified an issue with the CloudDrive::Mount() API where it will take 5 to 20 minutes to mount a drive that contains millions of files.  In these cases, the majority of time used by CloudDrive::Mount is spent updating the ACLs (access control lists...

One of the blob types supported by Windows Azure Storage is the Page Blob. Page Blobs provide efficient storage of sparse data by physically storing only pages that have been written and not cleared. Each page is 512 bytes in size. The Get Page Ranges REST service call returns a list of all contiguous...

Update: We have now released a fix for this issue.  The download blob methods in this version throw an IOException if the connection is closed while downloading the blob, which is the same behavior seen in versions 1.4 and earlier of the StorageClient library.  We strongly recommend that users...

With the Windows Azure SDK 1.3 it is now possible to run web roles with Full IIS. If you are unfamiliar with Full IIS you might want to look at this blog which captures the differences between Full IIS and Hosted Web Core (HWC) the only option available with prior SDKs. Additionally you may find this...

When running in the cloud, a few customers have reported that CloudDrive.InitializeCache() and CloudDrive.Mount() occasionally fail with ERROR_UNSUPPORTED_OS when running with SDK 1.3.   This error can occur when your service calls a CloudDrive API before the Azure CloudDrive service has been...

We recently released an update to the Storage Client library in SDK 1.3 . We wanted to take this opportunity to go over some breaking changes that we have introduced and also list some of the bugs we have fixed (compatible changes) in this release. Thanks for all the feedback you have been providing...

Windows Azure drives support the use of a local cache to improve performance of drives. With the upcoming Guest OS 1.8 and 2.0 releases, there’s a breaking change in the way this local cache is allocated. Background A Windows Azure application can request local storage in its service definition...

The release of Guest OS 1.4 contains an update to .NET 3.5 SP1 which contains some bug fixes to WCF Data Services. We have received some feedback on backward compatibility issues in Windows Azure Tables with respect to the WCF Data Services update. The purpose of this post is to go over some of the breaking...