README.md
1# Retry Example in gRPC Python
2
3## Prerequisite
4
5* grpcio >= 1.39.0
6* grpcio-tools >= 1.39.0
7
8## Running the example
9
10In terminal 1, start the flaky server:
11
12```sh
13python3 flaky_server.py
14```
15
16In terminal 2, start the retry clients:
17
18```sh
19python3 retry_client.py
20# Or
21python3 async_retry_client.py
22```
23
24## Expect results
25
26The client RPC will succeed, even with server injecting multiple errors. Here is an example server log:
27
28```sh
29$ python3 flaky_server.py
30INFO:root:Starting flaky server on [::]:50051
31INFO:root:Injecting error to RPC from ipv6:[::1]:54471
32INFO:root:Successfully responding to RPC from ipv6:[::1]:54473
33INFO:root:Injecting error to RPC from ipv6:[::1]:54491
34INFO:root:Injecting error to RPC from ipv6:[::1]:54581
35INFO:root:Injecting error to RPC from ipv6:[::1]:54581
36INFO:root:Injecting error to RPC from ipv6:[::1]:54581
37INFO:root:Injecting error to RPC from ipv6:[::1]:54581
38INFO:root:Successfully responding to RPC from ipv6:[::1]:54581
39INFO:root:Injecting error to RPC from ipv6:[::1]:55474
40INFO:root:Injecting error to RPC from ipv6:[::1]:55474
41INFO:root:Injecting error to RPC from ipv6:[::1]:55474
42INFO:root:Injecting error to RPC from ipv6:[::1]:55474
43INFO:root:Successfully responding to RPC from ipv6:[::1]:55474
44INFO:root:Injecting error to RPC from ipv6:[::1]:55533
45INFO:root:Injecting error to RPC from ipv6:[::1]:55533
46INFO:root:Injecting error to RPC from ipv6:[::1]:55533
47INFO:root:Successfully responding to RPC from ipv6:[::1]:55533
48```
49