Can not find service @ example "invoke-simple"

Hello,

I’m currently trying out dapr for python. I started with the pub-sub simple example and its working fine.

Now, I got stuck with the invoke-simple example.

I start the apps with the following commands and order:

1. dapr run --app-id invoke-receiver --app-protocol grpc --app-port 50051 python invoke-receiver.py
2. dapr run --app-id invoke-caller --app-protocol grpc python invoke-caller.py

Afterwards, invoke-caller.py gives me the following error:

[94;1m== APP == grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
[0m
[94;1m== APP ==        status = StatusCode.UNKNOWN
[0m
[94;1m== APP ==        details = "couldn't find service: invoke-receiver"
[0m
[94;1m== APP ==        debug_error_string = "{"created":"@1606122049.322000000","description":"Error received from peer ipv4:127.0.0.1:3128","file":"src/core/lib/surface/call.cc","file_line":1056,"grpc_message":"couldn't find service: invoke-receiver","grpc_status":2}"

For me, it looks a little bit strange why it receives an error from my proxy (127.0.0.1:3128). Could it be some proxy issues? Do I need to add something to “no-proxy” for dapr? (Currently: no_proxy: .docker.internal,localhost,127.0.0.1)

Could you help me to get this example running?

[JochenKienzle]

I have security software running on Windows and Linux so this could causing the issues with service discovery and rpcs. I was working using a VPN and without, which made no difference (but I was using dapr on localhost only).

On Linux, Service discovery and pub-sub was working but rpcs haven’t been executed (timeout). I have to check your suggestions and to double check my setup. I’ll let you know if I have some new information.

[JochenKienzle]

Good hint, I tried out the hello world example and it doesn’t work as well:

dapr run --app-id nodeapp --app-port 3000 --dapr-http-port 3500 node app.js
Starting Dapr with id nodeapp. HTTP Port: 3500. gRPC Port: 14790
[...]
Updating metadata for app command: node app.js
You're up and running! Both Dapr and your app logs will appear here.

dapr invoke --app-id nodeapp --method neworder --payload "{\"data\": { \"orderId\": \"42\" } }"
{"errorCode":"ERR_DIRECT_INVOKE","message":"couldn't find service: nodeapp"}
App invoked successfully

I double checked my proxy settings in docker as well on my proxy on my system. Both pass-through localhost & 127.0.0.1 and as I said, pub-sub example is working fine.