https://github.com/grpc/grpc/blob/v1.15.0/doc/health-checking.md

#grpc #kubernetes #health_check #health #monitor #service

https://github.com/micro/examples/blob/master/service/main.go

#golang #grpc #protobuf #consul #mdns #gomicro #github

Add health check to gRPC services and use this command line tool to check for service status:
- https://github.com/grpc-ecosystem/grpc-health-probe

#grpc #health #health_check

ghz:
- Simple gRPC benchmarking and load testing tool inspired by hey and grpcurl.

sample ghz command to load test a service:

ghz --insecure --proto my_proto.proto --call my_proto.AService.MethodById -d '{"user_id": "5d32b19b6fea7a28de186b15"}' 0.0.0.0:9000

The sample output will be:

Summary:
  Count:        200
  Total:        557.11 ms
  Slowest:      319.18 ms
  Fastest:      33.30 ms
  Average:      132.56 ms
  Requests/sec: 358.99

Response time histogram:
  33.300 [1]    |
  61.887 [6]    |∎∎
  90.475 [98]   |∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
  119.062 [23]  |∎∎∎∎∎∎∎∎∎
  147.650 [12]  |∎∎∎∎∎
  176.238 [10]  |∎∎∎∎
  204.825 [7]   |∎∎∎
  233.413 [12]  |∎∎∎∎∎
  262.000 [9]   |∎∎∎∎
  290.588 [9]   |∎∎∎∎
  319.176 [13]  |∎∎∎∎∎

Latency distribution:
  10% in 70.25 ms
  25% in 83.84 ms
  50% in 89.90 ms 
  75% in 178.51 ms
  90% in 275.84 ms
  95% in 301.41 ms
  99% in 317.01 ms

Status code distribution:
  [OK]   200 responses

#grpc #loadtest #ghz #grpcurl #hey #proto

https://www.eventstore.com/eventstoredb

#database #grpc #event #event_store

#JSON mapping in #protobuf #grpc:

https://developers.google.com/protocol-buffers/docs/proto3#json

#golang