Question

我正在使用go-json-rest编写REST服务，它使用net / http。

我的服务器代码很简单，获取请求并将其传递给频道

这是我的服务器代码

package main

import (
    "github.com/ant0ine/go-json-rest/rest"
    "log"
    "net/http"
    "strconv"
    "time"
)

const workerCount = 4
var evChannel = make(chan Event)
var workers = make([]*LogWorker, workerCount)
const maxLogFileSize = 100 // In MB
const maxLogFileBackups = 30
const maxLogFileAge = 5
const logFileName = "/home/sam/tmp/go_logs/event_"

func main() {
    // Initialize workers
    // Four workers is being created
    for i := 0; i < workerCount; i++ {
        var fileName = logFileName + strconv.Itoa(i)
        workers[i] = NewLogWorker(fileName, maxLogFileSize, maxLogFileBackups, maxLogFileAge)
        go workers[i].Work(evChannel)
    }    

    // Initialize REST API
    api := rest.NewApi()
    //api.Use(rest.DefaultDevStack...)
    api.Use(rest.DefaultCommonStack...)
    router, err := rest.MakeRouter(
        rest.Post("/events", StoreEvents),
    )
    if err != nil {
        log.Fatal(err)
    }
    api.SetApp(router)
    log.Fatal(http.ListenAndServe(":4545", api.MakeHandler()))
}

func StoreEvents(w rest.ResponseWriter, r *rest.Request) {
    event := Event{}
    err := r.DecodeJsonPayload(&event)
    if err != nil {
        rest.Error(w, err.Error(), http.StatusInternalServerError)
        return
    }
    // TODO : Add validation if needed
    // Add code to parse the request and add further information to event 
    // log.Println()
    select {
        case evChannel <- event:
        case <- time.After(5 * time.Second):
      // throw away the message, so sad
    }    
    // evChannel <- event
    //log.Println(Csv(event))
    w.WriteHeader(http.StatusOK)
}

当我使用jmeter连续执行时，我偶尔会收到以下错误

http：接受错误：接受tcp [::]：4545：打开文件太多;在10ms重试

net / http是否为每个请求打开文件？

Answer 1

发布elithrar评论作为答案

套接字，是的。您可能需要增加fd限制（通过ulimit或sysctl）。

使用net / http时打开的文件太多了

1 个答案: