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C# Apache Kafka client
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librdkafka DllNotFoundException in Windows server 2012 #95

Closed Tharunkumar closed 7 years ago

Tharunkumar commented 7 years ago

Hi Team,

I am currently using RDkafka version 0.9.1.0 and .netcore '1.0.0-preview2-1-003177' version. When i am deploying the application in my local IIS(Windows 8) it is working fine.Whereas when i put the same artifacts in a server machine IIS(Windows server 2012 R2 OS installed) , I am getting DLL not found exception for librdkafka. Is this issue related to librdkafka dll not available in any specific runtime . If so can you please let me know what is the run time for Windows server 2012 R2?

The runtimes that i have currently is attached in the below image.

image

dotnet --info output of my localmachine image

dotnet --info output of server machine which has windows server R2 installed

image

treziac commented 7 years ago

Is this this error? https://github.com/ah-/rdkafka-dotnet/wiki/Faq#how-can-i-fix-hresult0x8007007e-exception-during-librdkafka-initialization-on-production-server

treziac commented 7 years ago

Also if it said you miss librdkafka.dll, check that you have folders x86/x64 in your artifacts, with librdkafka.dll and zlib.dll inside

Tharunkumar commented 7 years ago

@treziac , i checked win7-x64 and x86 folders. Both librdkafka.dll and zlib.dll are available in that directory. What i am suspecting is for window server 2012 r2 do we need a different runtime like win81-x64 or something? But still my machine in Win8.

treziac commented 7 years ago

It's the same RID for both, so not a platform problem i think

Did you look at https://github.com/ah-/rdkafka-dotnet/wiki/Faq#how-can-i-fix-hresult0x8007007e-exception-during-librdkafka-initialization-on-production-server ? (ie install Visual C++ Redistributable Packages for Visual Studio 2013 on production server - this must be this exact version) or can you copy the complete error message?

ah- commented 7 years ago

I strongly suspect it's the missing redist.

Tharunkumar commented 7 years ago

@treziac : Thanks a lot for your help, Installing VS 2013 C++ Redistributable solved this issue.

YosefFixler commented 7 years ago

Hi, Is there any reason VS 2013 C++ Redistributable package is required specifically? Why VS 2015 C++ Redistributable package cannot do the work? We have the 2015 version installed at our production machines.

ah- commented 7 years ago

It is compiled with VS 2013, so it needs the matching redistributable. Ideally this would be solved by just statically linking though.