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©2018 Wantedly, Inc.
GoαʔόΛෆ҆ఆʹ͢Δ
ύοέʔδΛ࡞ͬͨ
31.Jan.2019 - Hazumi Ichijo
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©2018 Wantedly, Inc.
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Ұᑍ!IB[VNJSS!SFSPTU
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ग़ւಓ
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©2018 Wantedly, Inc.
མͪͯͯྑ͍αʔϏε ϝΠϯͷαʔϏε Ϣʔβʔ
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©2018 Wantedly, Inc.
མͪͯͯྑ͍αʔϏε ϝΠϯͷαʔϏε Ϣʔβʔ
མͪͯͯྑ͍αʔϏε ϝΠϯͷαʔϏε Ϣʔβʔ
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©2018 Wantedly, Inc.
མͪͯͯྑ͍αʔϏε ϝΠϯͷαʔϏε Ϣʔβʔ
མͪͯӨڹ͕ग़ͳ͍Α͏ʹ͢ΔͨΊʹɺ
$JSDVJU#SFBLFSͱ͍͏ͷ͕ଘࡏ͢Δ
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©2018 Wantedly, Inc.
CircuitBreaker͕ຊʹ͏·͘ಈ͔͘ෆ҆
=> ಈ͔͚ͩ͘γϡοͱ֬ೝ͍ͨ͠
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©2018 Wantedly, Inc.
Ͳ͏ͬͯෆ҆ఆʹ͢Δ͔
w ίʔυʹQBOJDͱ͔ΛೖΕΔʁ
Ͳ͏͍ͬͨৼΔ͍Λ͢Δ͖͔
w ൪Λฦ͢ʁϨεϙϯεΛ͘͢Δʁ
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©2018 Wantedly, Inc.
Ͳ͏ͬͯෆ҆ఆʹ͢Δ͔
Ϣʔβʔ
ϝΠϯͷαʔό͔Βݟ͑Δͷ
Ϩεϙϯε͚ͩ IUUQH31$
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©2018 Wantedly, Inc.
Ͳ͏ͬͯෆ҆ఆʹ͢Δ͔
Ϣʔβʔ
͚ͩ͜͜ʹෆ҆ఆ͞Λ͍ΕΕ͍͍
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©2018 Wantedly, Inc.
Ͳ͏ͬͯෆ҆ఆʹ͢Δ͔
Ϣʔβʔ
H31$*OUFSDFQUPS
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©2018 Wantedly, Inc.
Ͳ͏͍ͬͨৼΔ͍Λ͖͔͢
https://engineering.linkedin.com/blog/2018/05/linkedout--a-request-level-failure-injection-framework
-JOLFEJOͷ'BJMVSF*OKFDUJPO'SBNFXPSLͰ
w &SSPS
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©2018 Wantedly, Inc.
Ͳ͏͍ͬͨৼΔ͍Λ͖͔͢
https://engineering.linkedin.com/blog/2018/05/linkedout--a-request-level-failure-injection-framework
-JOLFEJOͷ'BJMVSF*OKFDUJPO'SBNFXPSLͰ
w &SSPS
w %FMBZ
w 5JNFPVU
ͷͭΛೖΕ͍ͯΔ
ͦͷ͏ͪɺ&SSPSɾ5JNFPVU͕͋Εࢼͤͦ͏ɻ
ߋʹɺͦ͏͍ͬͨৼΔ͍ϥϯμϜʹى͖ΔΑ͏ʹ͍ͨ͠
αʔϏεΛ6OJY5JNF͕/ͰׂΓΕΔͱ͖ΞϗʹͳΔΑ͏ʹ͢Εྑ͛͞
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©2018 Wantedly, Inc.
Ͳ͏͍ͬͨৼΔ͍Λ͖͔͢
{
"interval": 1,
"slow_response_option": {
"enable": true,
"time": 5
},
"server_error_option": {
"enable": true
}
}
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©2018 Wantedly, Inc.
ͦ͏͍ͬͨύοέʔδΛ࡞ͨ͠
https://github.com/rerost/unstable
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©2018 Wantedly, Inc.
package main
import (
"fmt"
"net/http"
"github.com/rerost/unstable/uhttp"
)
func main() {
http.Handle("/", uhttp.WithUnstable(handler))
if err := http.ListenAndServe(":3000", nil); err != nil {
fmt.Println(err)
}
}
func handler(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Sample"))
}
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©2018 Wantedly, Inc.
package main
import (
"context"
"log"
"net"
"github.com/golang/protobuf/ptypes/empty"
api_pb "github.com/rerost/unstable/example/grpc/server/api"
"github.com/rerost/unstable/ugrpc"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
)
type server struct{}
func (s *server) GetSample(ctx context.Context, req *empty.Empty) (*api_pb.GetSampleResponse, error) {
return &api_pb.GetSampleResponse{Message: "Sample"}, nil
}
func main() {
l, err := net.Listen("tcp", ":5000")
if err != nil {
log.Fatalf("Failed to listen: %v", err)
}
s := grpc.NewServer(
grpc.UnaryInterceptor(ugrpc.UnstableUnaryServerInterceptor()),
)
api_pb.RegisterSampleServiceServer(s, &server{})
reflection.Register(s)
if err := s.Serve(l); err != nil {
log.Fatalf("Failed to serve: %v", err)
}
}
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©2018 Wantedly, Inc.
Demo
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γϡοͱ'BVMU*OKFDUJPO͍ͨ͠ͱ͖ʹ͓͢͢Ί
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