Timeout when server not found

[lucasrabiec]

Hi!

I am facing the issue of a long waiting time while connecting to a server that doesn't exist, so I have two questions:

1. Could someone elaborate on why the time between sending calls and getting responses is so long when the server doesn't exist (or the wrong IP address is given)? Is there some kind of retry or something under the hood?
   For example, I am sending a unary call from a client and I need to wait for something about 1-2 min when I got a response: RpcError: 14 UNAVAILABLE: No connection established

2. How can I get the error Server not found or something similar (which tells me that the server is not found) immediately or quicker? AFAIK in official GRPC implementation in python, when the server is not found we get an error instantly.

grpc.aio._call.AioRpcError: <AioRpcError of RPC that terminated with:
     status = StatusCode.UNAVAILABLE
     details = "failed to connect to all addresses"

Edit: I found that I can do something like this: transport.mergeOptions({ timeout: 5000 }); or provide the timeout through the options of service call, but it returns RpcError: 4 DEADLINE_EXCEEDED: Deadline exceeded. Are there other possibilities that will return code 14, not 4?