应用程序可以运行几天。但是在某些时候,应用程序有许多处于 CLOSE_WAIT 状态的套接字,并且无法接收新客户端。
也许是某种洪水(例如:Sync-flood)?
netstat -ant | grep CLOSE_WAIT | 厕所
3258 19548 260640
3258 - 处于 CLOSE_WAIT 状态的套接字
更新:
编写一些处理程序:
func GetScore(mongo *mgo.Session, redisConn redis.Conn, renderer handlers.Render) http.Handler {
mutex := sync.Mutex{}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
id := bson.ObjectIdHex(r.FormValue("id"))
banner := models.Banner{}
err := mongo.DB("db").C("collection").FindId(id).One(&banner)
if err != nil {
log.Panicf("Banner selecting error: %s", err);
}
mutex.Lock();
sports, _ := util.GetSports(redisConn)
mutex.Unlock();
sport, _ := sports.FindSport(banner.SportId)
comp, err := sport.FindCompetition(banner.CompetitionId)
if err != nil {
comp, _ = sport.FindCompetition(0);
log.Println("Competition not found");
}
game, err := comp.FindGame(banner.GameId)
if err != nil {
game, _ = comp.FindGame(0)
}
mutex.Lock();
scores := util.GetScore(redisConn, game.ID)
mutex.Unlock();
game.Score1 = scores[0]
game.Score2 = scores[1]
w.Header().Set("Content-Type", "application/json;application/json;charset=utf-8")
renderer.RenderJson(w, 200, &game)
}
func GetScore(redisConn redis.Conn, gameId int) ([]float32) {
redisKey := fmt.Sprintf("game-%d", gameId);
bBody, err := redis.Bytes(redisConn.Do("GET", redisKey))
if err != nil || len(bBody) == 0 {
response, err := http.DefaultClient.Get(fmt.Sprintf("%s%d", GameApi, gameId))
if err != nil {
log.Panicf("GetScore error: %s", err)
}
bBody, _ = ioutil.ReadAll(response.Body);
redisConn.Send("SET", redisKey, bBody)
redisConn.Send("EXPIRE", redisKey, 60 * 5)
redisConn.Flush()
}
events := GameJson{};
err = json.Unmarshal(bBody, &events)
if err != nil {
log.Panicf("GetScore json error: %s", err)
}
var event []struct {
Name string `json:"name"`
Price float32 `json:"price"`
}
if len(events.AllEvents.P1XP2) != 0 {
event = events.AllEvents.P1XP2[0].Events
} else {
event = events.AllEvents.Other[0].Events
}
return []float32{event[0].Price, event[1].Price}
}