Unable to load DLL 'libsodium.x64.dll' on 32 bit system

[Yogesh Jagota]

I am getting the following error at Session.Load:

System.DllNotFoundException: Unable to load DLL 'libsodium.x64.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

   at Sparrow.Platform.Win32.WinSodium.X64.crypto_generichash_bytes()

   at Sparrow.Platform.Win32.WinSodium.crypto_generichash_bytes() in C:\Builds\RavenDB-4.0-RC\src\Sparrow\Platform\Win32\WinSodium.cs:line 32

   at Raven.Server.Documents.Handlers.DocumentHandler.ComputeEtagFor(List`1 documents, List`1 includes) in C:\Builds\RavenDB-4.0-RC\src\Raven.Server\Documents\Handlers\DocumentHandler.cs:line 303

   at Raven.Server.Documents.Handlers.DocumentHandler.GetDocumentsById(DocumentsOperationContext context, StringValues ids, Boolean metadataOnly) in C:\Builds\RavenDB-4.0-RC\src\Raven.Server\Documents\Handlers\DocumentHandler.cs:line 178

   at Raven.Server.Documents.Handlers.DocumentHandler.Get() in C:\Builds\RavenDB-4.0-RC\src\Raven.Server\Documents\Handlers\DocumentHandler.cs:line 71

   at Raven.Server.Routing.RequestRouter.<HandlePath>d__5.MoveNext() in C:\Builds\RavenDB-4.0-RC\src\Raven.Server\Routing\RequestRouter.cs:line 107

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()

   at System.Runtime.CompilerServices.ValueTaskAwaiter`1.GetResult()

   at Raven.Server.RavenServerStartup.<RequestHandler>d__11.MoveNext() in C:\Builds\RavenDB-4.0-RC\src\Raven.Server\RavenServerStartup.cs:line 159

Stack Trace:

   at Raven.Client.Exceptions.ExceptionDispatcher.<Throw>d__3.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)

   at Raven.Client.Http.RequestExecutor.<HandleUnsuccessfulResponse>d__83`1.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)

   at Raven.Client.Http.RequestExecutor.<ExecuteAsync>d__68`1.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at Raven.Client.Http.RequestExecutor.<ExecuteAsync>d__68`1.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at Raven.Client.Util.AsyncHelpers.<>c__DisplayClass2_1.<<RunSync>b__0>d.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at Raven.Client.Util.AsyncHelpers.RunSync(Func`1 task)

   at Raven.Client.Http.RequestExecutor.Execute[TResult](RavenCommand`1 command, JsonOperationContext context, CancellationToken token, SessionInfo sessionInfo)

   at Raven.Client.Documents.Session.DocumentSession.LoadInternal(String[] ids, LoadOperation operation, Stream stream)

   at Raven.Client.Documents.Session.DocumentSession.Load[T](IEnumerable`1 ids)

   at OrderManager.Data.DataAccessLayer.RavenDB.RavenDBRepository.Get[TEntity](IEnumerable`1 ids) in D:\Projects\OrderManager\OrderManager\Data\DataAccessLayer\RavenDB\RavenDBRepository.cs:line 66

As suggested in multiple locations, this means that Visual C++ Redistributable for Visual Studio 2015 needs to be installed, but the thing is it is already installed (32 bit version). The 64 bit version won't install as this is a 32 bit system. And from the error, it seems, the system requires 64 bit assemblies on the 32 bit system.

Please suggest what should be done.

[Adi Avivi]

RavenDB determines if the system is a 32bits one by testing : IntPtr.Size == sizeof(int)

Can you try simple console app printing the above 2 sizes?

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[Yogesh Jagota]

On my 64bit system:

Console.WriteLine("IntPtr.Size: {0}", IntPtr.Size);

Console.WriteLine("sizeof(int): {0}", sizeof(int));

Gives this result:

.Net Framework 4.7

IntPtr.Size: 4

sizeof(int): 4

.Net Core 2.0

IntPtr.Size: 8

sizeof(int): 4

So that logic used to determine a 32bit system is definitely flawed.

PS: I could not run it on the 32 bit system as it didn't had core sdk installed, but .Net Framework 4.7 returned this:

IntPtr.Size: 4

sizeof(int): 4

[Iftah Ben Zaken]

Please also add:
Environment.Is64BitProcess

[Yogesh Jagota]

[Oren Eini (Ayende Rahien)]

Great, so that is perfectly aligned with my expectations. IntPtr.Size = 8 means 64 bits.

You are running a 64 bits process, so we load the 64 bits libsodium. This requires the std library for C to be installed, in 64 bits mode, obviously

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On Thu, Dec 14, 2017 at 10:58 AM, Yogesh Jagota <justj...@jagotagroup.com> wrote:

[Yogesh Jagota]

I didn't get that. The issue appears on a 32 bit system, not on the 64 bit system. See the attached picture, i.e. the 32bit one, IntPtr.Size is 4 not 8. 

On Thursday, December 14, 2017 at 2:43:08 PM UTC+5:30, Oren Eini wrote:

Great, so that is perfectly aligned with my expectations. IntPtr.Size = 8 means 64 bits.

You are running a 64 bits process, so we load the 64 bits libsodium. This requires the std library for C to be installed, in 64 bits mode, obviously

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On Thu, Dec 14, 2017 at 10:58 AM, Yogesh Jagota <justj...@jagotagroup.com> wrote:

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[Oren Eini (Ayende Rahien)]

What is the full error on that machine?

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[Yogesh Jagota]

The one I posted originally:

System.DllNotFoundException: Unable to load DLL 'libsodium.x64.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

It is a 32bit system, but it is looking for the 64bit version of VC++ redistributables, which cannot be installed.

[Oren Eini (Ayende Rahien)]

The specific code path here is:

https://github.com/ravendb/ravendb/blob/v4.0/src/Sparrow/Platform/Win32/WinSodium.cs#L34

_is32Bits is initialize here:

https://github.com/ravendb/ravendb/blob/v4.0/src/Sparrow/Platform/Win32/WinSodium.cs#L20

And that comes from:

https://github.com/ravendb/ravendb/blob/v4.0/src/Sparrow/Platform/PlatformDetails.cs#L8

In other words, the stack trace indicates that you aren't on a 32 bits process.

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[Yogesh Jagota]

I understood what you are saying. What I am not understanding is why is IntPtr.Size == sizeof(int) is returning false on a 32 bit system. I will investigate more into this. Seems like it is not an issue linked with RavenDb.

Thanks.

[Oren Eini (Ayende Rahien)]

There shouldn't be any way that can be the case. That is literally the meaning of 32 bits vs 64 bits.

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On Thu, Dec 14, 2017 at 3:03 PM, Yogesh Jagota <justj...@jagotagroup.com> wrote:

I understood what you are saying. What I am not understanding is why is IntPtr.Size == sizeof(int) is returning false on a 32 bit system. I will investigate more into this. Seems like it is not an issue linked with RavenDb.

Thanks.

--

[Yogesh Jagota]

You are absolutely right, but wmic os get osarchitecture is clearly returning 32 bits on the system as you can see in the attached screenshot. Even more surprising is the fact that both values are 4 in both core and framework. This is pretty baffling to be honest.

On Thursday, December 14, 2017 at 6:38:23 PM UTC+5:30, Oren Eini wrote:

There shouldn't be any way that can be the case. That is literally the meaning of 32 bits vs 64 bits.

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On Thu, Dec 14, 2017 at 3:03 PM, Yogesh Jagota <justj...@jagotagroup.com> wrote:

I understood what you are saying. What I am not understanding is why is IntPtr.Size == sizeof(int) is returning false on a 32 bit system. I will investigate more into this. Seems like it is not an issue linked with RavenDb.

Thanks.

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[Oren Eini (Ayende Rahien)]

You are running the process in 32 bits mode, probably because that is the default.

But RavenDB is configured to run in 64 bits mode if possible.

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[Yogesh Jagota]

Yes. The client/software is on a 32bit machine and Raven is installed on a 64 bit machine on the same network. But that shouldn't make a difference as the IntPtr.Size comparison is done at the client side, right?

[Oren Eini (Ayende Rahien)]

The error comes from the server side, the client side has nothing to do with it 

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On Thu, Dec 14, 2017 at 4:37 PM, Yogesh Jagota <justj...@jagotagroup.com> wrote:

Yes. The client/software is on a 32bit machine and Raven is installed on a 64 bit machine on the same network. But that shouldn't make a difference as the IntPtr.Size comparison is done at the client side, right?

[Yogesh Jagota]

Isn't DllNotFoundException means the client cannot find the dll? And the client on 32bit also works fine. Only when I use Load with multiple ids (more than one) this error is thrown. The server and other machines which are 64bit are also working perfectly.

That's why I am surprised that the system is demanding a 64bit file on a 32bit machine. Shouldn't it use the 32bit file on a 32bit machine regardless on which arch the server is? And if can't, that means I cannot use 32bit machines if the server is on a 64bits machine?

On Thursday, December 14, 2017 at 8:08:00 PM UTC+5:30, Oren Eini wrote:

The error comes from the server side, the client side has nothing to do with it 

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On Thu, Dec 14, 2017 at 4:37 PM, Yogesh Jagota <justj...@jagotagroup.com> wrote:

Yes. The client/software is on a 32bit machine and Raven is installed on a 64 bit machine on the same network. But that shouldn't make a difference as the IntPtr.Size comparison is done at the client side, right?

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[Oren Eini (Ayende Rahien)]

Yes, but it can also be caused because the dll couldn't be loaded.

Note that this particular error happens when we do some hashing using libsodium when computing etag for multiple docs, not related to the client at all.

If the server is 64 bits, please check that the actual file is there and that the VC++ runtime is installed

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[Yogesh Jagota]

Yes. You were right. The VC++ runtime  installation had some issue as when I reinstalled it on the server, the error went away. Thanks for the help.