fix: fix wrong condition judgement

Signed-off-by: why2go <why2go@163.com>

internal/msg_transfer/logic/online_history_msg_handler.go

@@ -11,12 +11,13 @@ import (
 	pbPush "Open_IM/pkg/proto/push"
 	"Open_IM/pkg/utils"
 	"context"
-	"github.com/Shopify/sarama"
-	"github.com/golang/protobuf/proto"
 	"hash/crc32"
 	"strings"
 	"sync"
 	"time"
+
+	"github.com/Shopify/sarama"
+	"github.com/golang/protobuf/proto"
 )
 
 type MsgChannelValue struct {
@@ -529,7 +530,7 @@ func sendMessageToPush(message *pbMsg.MsgDataToMQ, pushToUserID string) {
 	rpcPushMsg := pbPush.PushMsgReq{OperationID: message.OperationID, MsgData: message.MsgData, PushToUserID: pushToUserID}
 	mqPushMsg := pbMsg.PushMsgDataToMQ{OperationID: message.OperationID, MsgData: message.MsgData, PushToUserID: pushToUserID}
 	grpcConn := getcdv3.GetDefaultConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImPushName, message.OperationID)
-	if grpcConn != nil {
+	if grpcConn == nil {
 		log.Error(rpcPushMsg.OperationID, "rpc dial failed", "push data", rpcPushMsg.String())
 		pid, offset, err := producer.SendMessage(&mqPushMsg, mqPushMsg.PushToUserID, rpcPushMsg.OperationID)
 		if err != nil {