nvflare.fuel.utils.grpc_utils module

create_channel(server_addr, grpc_options, ready_timeout: float, test_only: bool)

Create gRPC channel and waits for the server to be ready

Parameters:

• server_addr – the gRPC server address to connect to

• grpc_options – gRPC client connection options

• ready_timeout – how long to wait for the server to be ready

• test_only – whether for testing the server readiness only

Returns: the gRPC channel created. Bit if test_only, the channel is closed and returns None.

If the server does not become ready within ready_timeout, the RuntimeError exception will raise.