solution from below post solves it

https://community.developers.refinitiv.com/questions/31853/rfa-81-net-64-bit-sessionacquiresession1-freezes-w.html

@jude.x.jin you didn't mention the programming language, but I assume it is C++. RFA C++ can read the configuration settings from a flat file or from registry. In your case, it seems like the new service account does not have the RFA configuration properly set in registry. Try to import the settings from old account into the new account. A sample RFA configuration registry file is also provided with the SDK examples.

https://developers.thomsonreuters.com/thomson-reuters-enterprise-platform/robust-foundation-api-rfa/downloads

HI, Gurpreet.

I'm using C#. Could you please give me more detailed steps of how to export configuration from registry in old account and import into new account?

I'm totally new to RFA. I wasn't the one who set up RFA on the server.

Many Thanks,

Jude

@Gurpreet I cannot access the link you give me.

You can also get the sample RFA configuration from your SDK installation. Firstly, you will need to verify that the application is indeed using configuration from registry. In the code, you are looking for how staging database is loaded -- something along the lines of:

fileConfig:

RFA_String exampleRfaCfgFilePath = new RFA_String("./ExampleRFA.cfg");
stgCfgDataBase.Load(ConfigRepositoryTypeEnum.flatFile, exampleRfaCfgFilePath);

registry:
RFA_String exampleRfaCfgRegPath = new RFA_String("HKEY_LOCAL_MACHINE\\SOFTWARE\\Reuters\\RFA\\Default");
stgCfgDataBase.Load(ConfigRepositoryTypeEnum.windowsRegistry, exampleRfaCfgRegPath);

Here you can also see the path to the registry (HKEY_LOCAL_MACHINE\SOFTWARE\Reuters\RFA\Default) which your new system account should be able to access.

@Gurpreet Following your suggestion, the code is showing that it is using RFA.cfg file. So it is not based on registry setting. RFA.cfg is readable by everyone. So is it weird that Session.Acquire() is stuck under new service account?

Can you enable the logger entries in the configuration file and check RFA log for more information. Configuration settings are explained in the RFANET_ConfigGuide.pdf file available in the docs directory in the SDK.

@Gurpreet

Thanks for your prompt reply. Could you please tell me how to configure the log in RFA.cfg, probabaly just one line, right?

I don't have the SDK nor the SDK doc. I have applied to the API membership just now.

Could you please email the doc to jude.x.jin@us.hsbc.com ?

Thanks a lot!

Jude

@Gurpreet

below is the content of the RFA.cfg file. i masked the host name

RFA.cfg

\Sessions\VolFitterSession\connectionList = "ElektronEdge"
\Connections\ElektronEdge\connectionType = "RSSL"
\Connections\ElektronEdge\serverList = "*******.hsbc"
\Connections\ElektronEdge\rsslPort = "21100"