b638a6d047
- Enabled metrics in storagesvc, buildermgr and controller. - Added a middleware in storagesvc, router, executor and controller to monitor total number of http requests, each request's duration and number of requests that are currently being served. These requests can be filtered on their path, method or statuscode. - Removed functionCallDuration and functionCallResponseSize metrics from router. - Removed funcAliveSummary, funcIsAlive, funcReapTime and idleTime metrics. - Replaced function calls for collecting metrics to direct metric calls. Signed-off-by: Sanket Sudake <sanketsudake@gmail.com> Co-authored-by: Sanket Sudake <sanketsudake@gmail.com>
116 lines
2.7 KiB
Go
116 lines
2.7 KiB
Go
/*
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Copyright 2016 The Fission Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package router
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import (
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"log"
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"net/http"
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"testing"
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"time"
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"github.com/gorilla/mux"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"github.com/fission/fission/pkg/utils/metrics"
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)
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func OldHandler(responseWriter http.ResponseWriter, request *http.Request) {
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_, err := responseWriter.Write([]byte("old handler"))
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if err != nil {
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log.Fatal(err)
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}
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}
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func NewHandler(responseWriter http.ResponseWriter, request *http.Request) {
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_, err := responseWriter.Write([]byte("new handler"))
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if err != nil {
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log.Fatal(err)
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}
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}
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func verifyRequest(expectedResponse string) {
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targetURL := "http://localhost:3333"
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testRequest(targetURL, expectedResponse)
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}
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func startServer(mr *mutableRouter) {
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err := http.ListenAndServe(":3333", mr)
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if err != nil {
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log.Fatal(err)
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}
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}
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func spamServer(quit chan bool) {
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i := 0
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for {
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select {
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case <-quit:
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return
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default:
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i = i + 1
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resp, err := http.Get("http://localhost:3333")
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if err != nil {
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log.Panicf("failed to make get request %v: %v", i, err)
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}
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resp.Body.Close()
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}
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}
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}
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func TestMutableMux(t *testing.T) {
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// make a simple mutable router
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log.Print("Create mutable router")
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muxRouter := mux.NewRouter()
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muxRouter.Use(metrics.HTTPMetricMiddleware())
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muxRouter.HandleFunc("/", OldHandler)
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config := zap.NewDevelopmentConfig()
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config.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
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logger, err := config.Build()
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panicIf(err)
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mr := newMutableRouter(logger, muxRouter)
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// start http server
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log.Print("Start http server")
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go startServer(mr)
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// continuously make requests, panic if any fails
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time.Sleep(100 * time.Millisecond)
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q := make(chan bool)
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go spamServer(q)
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time.Sleep(5 * time.Millisecond)
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// connect and verify old handler
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log.Print("Verify old handler")
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verifyRequest("old handler")
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// change the muxer
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log.Print("Change mux router")
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newMuxRouter := mux.NewRouter()
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muxRouter.Use(metrics.HTTPMetricMiddleware())
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newMuxRouter.HandleFunc("/", NewHandler)
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mr.updateRouter(newMuxRouter)
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// connect and verify the new handler
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log.Print("Verify new handler")
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verifyRequest("new handler")
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q <- true
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time.Sleep(100 * time.Millisecond)
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}
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