Uploading a large file(2GB Max) On Windows Azure Webrole Using SWFUploader

I have an application, in that I want to upload a large file max up to 2GB, and after processing this file I want to store it as blob on blobstorage. I am using SWFUploader to upload the files (I want to show progress bar, which is must).

The problem is, I am unable to upload a file more than 100 MB. After uploading a file up to 100 MB (or sometimes 90-95 MB) it restarts the whole uploading process and sometimes it just fails. I am using a Webrole project, for this entire task.

So my question is: Can I upload such large file on windows azure webrole project (basically its Asp.net website, so i want to upload a file on webserver) and process it over there and then upload it to blobstorage?

According to my knowledge I did following things:

1: I have set following parameters in web.config

<security>
<requestFiltering>
 <!--maxAllowedContentLength in bytes-->
        <requestLimits maxAllowedContentLength="2147483648"></requestLimits>
</requestFiltering>
</security>

<httpRuntime executionTimeout="999999" maxRequestLength="2097152"/>

2: I have changed default TMP/TEMP folder of ASP.Net(which is 100 MB by default) to new folder that i have created in local storage resuorces by using follwiing code snippet

I have created this "CustomTempLocalStore" as

<LocalStorage name="CustomTempLocalStore" cleanOnRoleRecycle="false" sizeInMB="1024" />

then set this local storage resources to use as TMP/TEMP by setting following code in onstart() menthod of webrole.

string customTempLocalResourcePath = RoleEnvironment.GetLocalResource("CustomTempLocalStore").RootPath;
Environment.SetEnvironmentVariable("TMP", customTempLocalResourcePath);
Environment.SetEnvironmentVariable("TEMP", cus开发者_如何学JAVAtomTempLocalResourcePath);

I found this on follwing link: http://msdn.microsoft.com/en-us/library/dd573354.aspx

Still its not working, the SWFUploader is giving follwing error:

Server(IO)Error

Any ideas?

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By default, local storage on Windows Azure is limited to 100MB. At least it was at the time of this blog post, which explains in detail how to work around it.

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You can use Azure Blobs shared signature to allow the client write directly on the blob:

http://convective.wordpress.com/2010/01/20/access-control-for-azure-blobs/

Cheers.

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Here is an MSDN article explaining the 100 MB TEMP folder limit, and giving a simple workaround, which involves redirecting the TEMP directory (different to Dave's answer).