Go Conference 2018 Autumn 参加メモ

OpenCensus による APM の実現と、未来

OpenCensus

• OpenCensusのこれから
  • OpenCensusServiceによるexpoerterの分離
  • Logging Support

コードベースと基盤の依存を減らすAPMの実現が可能
ベンダーに依存しない実装により、
APMはさらなるecosystemの成長を遂げるだろう

Profiling Go Application

https://godoc.org/golang.org/x/tools/cmd/benchcmp
https://godoc.org/golang.org/x/perf/cmd/benchstat
Cliなら pkg/profile
Serverなら net/http/prof
uber/go-torch,flamegraph,flamescopeしたり

API Testing the Hard Way

Linting, Slicing, and Dicing OpenAPI documents

https://www.slideshare.net/lestrrat/slicing-dicing-and-linting-openapi
https://github.com/lestrrat-go/openapi

OpenAPI v2 (Swagger)
OpenAPi v3
使わない機能がたくさん

Goal
Use Cloud Endpoint (GCP)
Generate gRPC server/client
Generate ES6/Golang REST client
Write definitions in ONE file
Grips
https://github.com/NYTimes/openapi2proto
https://github.com/go-openapi/spec

Consider pluggable CLI tool implementation

https://speakerdeck.com/izumin5210/consider-pluggable-cli-tool-implementation-number-gocon
https://github.com/izumin5210/grapi

• 体験の良いツール
  • Rails
  • create-react-app
• Golangで実装しやすそうなツール
  • protoc
  • Terraform https://github.com/hashicorp/terraform/tree/master/plugin
  • kubectl
  • SQLBoiler https://github.com/izumin5210/gex

フィードバック制御によるGoroutine起動数の最適化

https://speakerdeck.com/monochromegane/optimization-of-goroutine-numbers-by-feedback-control
最適な並行数を求めたい
Kaburayaアーキテクチャ https://github.com/monochromegane/kaburaya
PID制御
　　* 比例制御
　　* 積分制御
　　* 微分制御
https://speakerdeck.com/monochromegane/wsa-3-kaburaya
https://github.com/npat-efault/musings/wiki/Elastic-channels

Practical Go Concurrency Design Patterns

Pains and gains of architecting microservices on local dev environment