redis 접속 실패시 로그가 과도하게 남는 문제 수정

wshandler/wshandler.go

@@ -13,6 +13,7 @@ import (
 	"net/http"
 	"strings"
 	"sync"
+	"time"
 
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"repositories.action2quare.com/ayo/gocommon"
@@ -211,6 +212,8 @@ func (ws *WebsocketHandler) mainLoop(ctx context.Context) {
 	// redis channel에서 유저가 보낸 메시지를 읽는 go rountine
 	go func() {
 		var pubsub *redis.PubSub
+		waittimer := time.Second
+
 		for {
 			if pubsub == nil {
 				pubsub = ws.redisSync.Subscribe(ctx, ws.redisMsgChanName, ws.redisCmdChanName)
@@ -218,6 +221,8 @@ func (ws *WebsocketHandler) mainLoop(ctx context.Context) {
 
 			raw, err := pubsub.ReceiveMessage(ctx)
 			if err == nil {
+				waittimer = time.Second
+
 				buffer := bytes.NewBuffer([]byte(raw.Payload))
 				dec := gob.NewDecoder(buffer)
 
@@ -241,6 +246,12 @@ func (ws *WebsocketHandler) mainLoop(ctx context.Context) {
 				pubsub.Close()
 				pubsub = nil
 
+				time.Sleep(waittimer)
+				waittimer = waittimer * 2
+				if waittimer > time.Minute {
+					waittimer = time.Minute
+				}
+
 				if ctx.Err() != nil {
 					break
 				}