examples/src/main/resources/io/grpc/examples/retrying/retrying_service_config.json

{
  "methodConfig": [
    {
      "name": [
        {
          "service": "helloworld.Greeter",
          "method": "SayHello"
        }
      ],

      "retryPolicy": {
        "maxAttempts": 5,
        "initialBackoff": "0.5s",
        "maxBackoff": "30s",
        "backoffMultiplier": 2,
        "retryableStatusCodes": [
          "UNAVAILABLE"
        ]
      }
    }
  ]
}