Trouble (rlm_python) with grpcio.

Jorge Pereira jpereira at
Tue Apr 27 19:13:03 CEST 2021

Hi Malinskiy,

The latest HEAD code in v3.0.x (next 3.0.22) has several fixes In rlm_python3. My suggestion is to build your own package from <> with all these fixes.

Jorge Pereira
jpereira at

> On 27 Apr 2021, at 04:03, s malinskiy <s.malinskiy at> wrote:
> Good day Team.
> Several days ago I tried to use grpc for authentication in the python3
> module, but
> my request to the backend service failed.
> That was pretty strange and I spent some time troubleshooting the problem.
> First, all works well if I call script from *instantiate* section, but for
> case if i try use call for example
> in *authentication,* nothing happens (grpc constantly tries to reach
> backend service) and radiusd stops proceeding new authentication requests.
> I think there is some kind of threading issue of python.
> Currently I don't have a solution to this issue but maybe you can help with
> this.
> ps. Centos8.x , freerad 3.20, python 3.6 and grpcio 1.37 if i dont mind.
> -
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