fix: set own read seq in MongoDB when sender send a message. (#2808)

internal/msgtransfer/init.go

@@ -128,6 +128,7 @@ func (m *MsgTransfer) Start(index int, config *Config) error {
 
 	go m.historyCH.historyConsumerGroup.RegisterHandleAndConsumer(m.ctx, m.historyCH)
 	go m.historyMongoCH.historyConsumerGroup.RegisterHandleAndConsumer(m.ctx, m.historyMongoCH)
+	go m.historyCH.HandleUserHasReadSeqMessages(m.ctx)
 	err := m.historyCH.redisMessageBatches.Start()
 	if err != nil {
 		return err
@@ -157,12 +158,14 @@ func (m *MsgTransfer) Start(index int, config *Config) error {
 		// graceful close kafka client.
 		m.cancel()
 		m.historyCH.redisMessageBatches.Close()
+		m.historyCH.Close()
 		m.historyCH.historyConsumerGroup.Close()
 		m.historyMongoCH.historyConsumerGroup.Close()
 		return nil
 	case <-netDone:
 		m.cancel()
 		m.historyCH.redisMessageBatches.Close()
+		m.historyCH.Close()
 		m.historyCH.historyConsumerGroup.Close()
 		m.historyMongoCH.historyConsumerGroup.Close()
 		close(netDone)

internal/msgtransfer/online_history_msg_handler.go

@@ -18,8 +18,10 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/prommetrics"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/IBM/sarama"
@@ -45,6 +47,7 @@ const (
 	subChanBuffer     = 50
 	worker            = 50
 	interval          = 100 * time.Millisecond
+	hasReadChanBuffer = 1000
 )
 
 type ContextMsg struct {
@@ -52,6 +55,13 @@ type ContextMsg struct {
 	ctx     context.Context
 }
 
+// This structure is used for asynchronously writing the sender’s read sequence (seq) regarding a message into MongoDB.
+// For example, if the sender sends a message with a seq of 10, then their own read seq for this conversation should be set to 10.
+type userHasReadSeq struct {
+	conversationID string
+	userHasReadMap map[string]int64
+}
+
 type OnlineHistoryRedisConsumerHandler struct {
 	historyConsumerGroup *kafka.MConsumerGroup
 
@@ -60,6 +70,8 @@ type OnlineHistoryRedisConsumerHandler struct {
 	msgTransferDatabase         controller.MsgTransferDatabase
 	conversationRpcClient       *rpcclient.ConversationRpcClient
 	groupRpcClient              *rpcclient.GroupRpcClient
+	conversationUserHasReadChan chan *userHasReadSeq
+	wg                          sync.WaitGroup
 }
 
 func NewOnlineHistoryRedisConsumerHandler(kafkaConf *config.Kafka, database controller.MsgTransferDatabase,
@@ -70,6 +82,8 @@ func NewOnlineHistoryRedisConsumerHandler(kafkaConf *config.Kafka, database cont
 	}
 	var och OnlineHistoryRedisConsumerHandler
 	och.msgTransferDatabase = database
+	och.conversationUserHasReadChan = make(chan *userHasReadSeq, hasReadChanBuffer)
+	och.wg.Add(1)
 
 	b := batcher.New[sarama.ConsumerMessage](
 		batcher.WithSize(size),
@@ -115,25 +129,25 @@ func (och *OnlineHistoryRedisConsumerHandler) do(ctx context.Context, channelID
 }
 
 func (och *OnlineHistoryRedisConsumerHandler) doSetReadSeq(ctx context.Context, msgs []*ContextMsg) {
-	type seqKey struct {
+
-		conversationID string
+	var conversationID string
-		userID         string
+	var userSeqMap map[string]int64
-	}
-	var readSeq map[seqKey]int64
 	for _, msg := range msgs {
 		if msg.message.ContentType != constant.HasReadReceipt {
 			continue
 		}
 		var elem sdkws.NotificationElem
 		if err := json.Unmarshal(msg.message.Content, &elem); err != nil {
-			log.ZError(ctx, "handlerConversationRead Unmarshal NotificationElem msg err", err, "msg", msg)
+			log.ZWarn(ctx, "handlerConversationRead Unmarshal NotificationElem msg err", err, "msg", msg)
 			continue
 		}
 		var tips sdkws.MarkAsReadTips
 		if err := json.Unmarshal([]byte(elem.Detail), &tips); err != nil {
-			log.ZError(ctx, "handlerConversationRead Unmarshal MarkAsReadTips msg err", err, "msg", msg)
+			log.ZWarn(ctx, "handlerConversationRead Unmarshal MarkAsReadTips msg err", err, "msg", msg)
 			continue
 		}
+		//The conversation ID for each batch of messages processed by the batcher is the same.
+		conversationID = tips.ConversationID
 		if len(tips.Seqs) > 0 {
 			for _, seq := range tips.Seqs {
 				if tips.HasReadSeq < seq {
@@ -146,26 +160,25 @@ func (och *OnlineHistoryRedisConsumerHandler) doSetReadSeq(ctx context.Context,
 		if tips.HasReadSeq < 0 {
 			continue
 		}
-		if readSeq == nil {
+		if userSeqMap == nil {
-			readSeq = make(map[seqKey]int64)
+			userSeqMap = make(map[string]int64)
 		}
-		key := seqKey{
+
-			conversationID: tips.ConversationID,
+		if userSeqMap[tips.MarkAsReadUserID] > tips.HasReadSeq {
-			userID:         tips.MarkAsReadUserID,
-		}
-		if readSeq[key] > tips.HasReadSeq {
 			continue
 		}
-		readSeq[key] = tips.HasReadSeq
+		userSeqMap[tips.MarkAsReadUserID] = tips.HasReadSeq
 	}
-	if readSeq == nil {
+	if userSeqMap == nil {
 		return
 	}
-	for key, seq := range readSeq {
+	if len(conversationID) == 0 {
-		if err := och.msgTransferDatabase.SetHasReadSeqToDB(ctx, key.userID, key.conversationID, seq); err != nil {
+		log.ZWarn(ctx, "conversation err", nil, "conversationID", conversationID)
-			log.ZError(ctx, "set read seq to db error", err, "userID", key.userID, "conversationID", key.conversationID, "seq", seq)
 	}
+	if err := och.msgTransferDatabase.SetHasReadSeqToDB(ctx, conversationID, userSeqMap); err != nil {
+		log.ZWarn(ctx, "set read seq to db error", err, "conversationID", conversationID, "userSeqMap", userSeqMap)
 	}
+
 }
 
 func (och *OnlineHistoryRedisConsumerHandler) parseConsumerMessages(ctx context.Context, consumerMessages []*sarama.ConsumerMessage) []*ContextMsg {
@@ -250,12 +263,21 @@ func (och *OnlineHistoryRedisConsumerHandler) handleMsg(ctx context.Context, key
 	}
 	if len(storageMessageList) > 0 {
 		msg := storageMessageList[0]
-		lastSeq, isNewConversation, err := och.msgTransferDatabase.BatchInsertChat2Cache(ctx, conversationID, storageMessageList)
+		lastSeq, isNewConversation, userSeqMap, err := och.msgTransferDatabase.BatchInsertChat2Cache(ctx, conversationID, storageMessageList)
 		if err != nil && !errors.Is(errs.Unwrap(err), redis.Nil) {
-			log.ZError(ctx, "batch data insert to redis err", err, "storageMsgList", storageMessageList)
+			log.ZWarn(ctx, "batch data insert to redis err", err, "storageMsgList", storageMessageList)
 			return
 		}
 		log.ZInfo(ctx, "BatchInsertChat2Cache end")
+		err = och.msgTransferDatabase.SetHasReadSeqs(ctx, conversationID, userSeqMap)
+		if err != nil {
+			log.ZWarn(ctx, "SetHasReadSeqs error", err, "userSeqMap", userSeqMap, "conversationID", conversationID)
+			prommetrics.SeqSetFailedCounter.Inc()
+		}
+		och.conversationUserHasReadChan <- &userHasReadSeq{
+			conversationID: conversationID,
+			userHasReadMap: userSeqMap,
+		}
 
 		if isNewConversation {
 			switch msg.SessionType {
@@ -308,7 +330,7 @@ func (och *OnlineHistoryRedisConsumerHandler) handleNotification(ctx context.Con
 		storageMessageList = append(storageMessageList, msg.message)
 	}
 	if len(storageMessageList) > 0 {
-		lastSeq, _, err := och.msgTransferDatabase.BatchInsertChat2Cache(ctx, conversationID, storageMessageList)
+		lastSeq, _, _, err := och.msgTransferDatabase.BatchInsertChat2Cache(ctx, conversationID, storageMessageList)
 		if err != nil {
 			log.ZError(ctx, "notification batch insert to redis error", err, "conversationID", conversationID,
 				"storageList", storageMessageList)
@@ -323,6 +345,21 @@ func (och *OnlineHistoryRedisConsumerHandler) handleNotification(ctx context.Con
 		och.toPushTopic(ctx, key, conversationID, storageList)
 	}
 }
+func (och *OnlineHistoryRedisConsumerHandler) HandleUserHasReadSeqMessages(ctx context.Context) {
+	defer och.wg.Done()
+
+	for msg := range och.conversationUserHasReadChan {
+		if err := och.msgTransferDatabase.SetHasReadSeqToDB(ctx, msg.conversationID, msg.userHasReadMap); err != nil {
+			log.ZWarn(ctx, "set read seq to db error", err, "conversationID", msg.conversationID, "userSeqMap", msg.userHasReadMap)
+		}
+	}
+
+	log.ZInfo(ctx, "Channel closed, exiting handleUserHasReadSeqMessages")
+}
+func (och *OnlineHistoryRedisConsumerHandler) Close() {
+	close(och.conversationUserHasReadChan)
+	och.wg.Wait()
+}
 
 func (och *OnlineHistoryRedisConsumerHandler) toPushTopic(ctx context.Context, key, conversationID string, msgs []*ContextMsg) {
 	for _, v := range msgs {

pkg/common/storage/controller/msg_transfer.go

@@ -24,8 +24,11 @@ type MsgTransferDatabase interface {
 	DeleteMessagesFromCache(ctx context.Context, conversationID string, seqs []int64) error
 
 	// BatchInsertChat2Cache increments the sequence number and then batch inserts messages into the cache.
-	BatchInsertChat2Cache(ctx context.Context, conversationID string, msgs []*sdkws.MsgData) (seq int64, isNewConversation bool, err error)
+	BatchInsertChat2Cache(ctx context.Context, conversationID string, msgs []*sdkws.MsgData) (seq int64, isNewConversation bool, userHasReadMap map[string]int64, err error)
-	SetHasReadSeqToDB(ctx context.Context, userID string, conversationID string, hasReadSeq int64) error
+
+	SetHasReadSeqs(ctx context.Context, conversationID string, userSeqMap map[string]int64) error
+
+	SetHasReadSeqToDB(ctx context.Context, conversationID string, userSeqMap map[string]int64) error
 
 	// to mq
 	MsgToPushMQ(ctx context.Context, key, conversationID string, msg2mq *sdkws.MsgData) (int32, int64, error)
@@ -219,18 +222,18 @@ func (db *msgTransferDatabase) DeleteMessagesFromCache(ctx context.Context, conv
 	return db.msg.DeleteMessagesFromCache(ctx, conversationID, seqs)
 }
 
-func (db *msgTransferDatabase) BatchInsertChat2Cache(ctx context.Context, conversationID string, msgs []*sdkws.MsgData) (seq int64, isNew bool, err error) {
+func (db *msgTransferDatabase) BatchInsertChat2Cache(ctx context.Context, conversationID string, msgs []*sdkws.MsgData) (seq int64, isNew bool, userHasReadMap map[string]int64, err error) {
 	lenList := len(msgs)
 	if int64(lenList) > db.msgTable.GetSingleGocMsgNum() {
-		return 0, false, errs.New("message count exceeds limit", "limit", db.msgTable.GetSingleGocMsgNum()).Wrap()
+		return 0, false, nil, errs.New("message count exceeds limit", "limit", db.msgTable.GetSingleGocMsgNum()).Wrap()
 	}
 	if lenList < 1 {
-		return 0, false, errs.New("no messages to insert", "minCount", 1).Wrap()
+		return 0, false, nil, errs.New("no messages to insert", "minCount", 1).Wrap()
 	}
 	currentMaxSeq, err := db.seqConversation.Malloc(ctx, conversationID, int64(len(msgs)))
 	if err != nil {
 		log.ZError(ctx, "storage.seq.Malloc", err)
-		return 0, false, err
+		return 0, false, nil, err
 	}
 	isNew = currentMaxSeq == 0
 	lastMaxSeq := currentMaxSeq
@@ -248,25 +251,25 @@ func (db *msgTransferDatabase) BatchInsertChat2Cache(ctx context.Context, conver
 	} else {
 		prommetrics.MsgInsertRedisSuccessCounter.Inc()
 	}
-	err = db.setHasReadSeqs(ctx, conversationID, userSeqMap)
+	return lastMaxSeq, isNew, userSeqMap, errs.Wrap(err)
-	if err != nil {
-		log.ZError(ctx, "SetHasReadSeqs error", err, "userSeqMap", userSeqMap, "conversationID", conversationID)
-		prommetrics.SeqSetFailedCounter.Inc()
-	}
-	return lastMaxSeq, isNew, errs.Wrap(err)
 }
 
-func (db *msgTransferDatabase) setHasReadSeqs(ctx context.Context, conversationID string, userSeqMap map[string]int64) error {
+func (db *msgTransferDatabase) SetHasReadSeqs(ctx context.Context, conversationID string, userSeqMap map[string]int64) error {
 	for userID, seq := range userSeqMap {
-		if err := db.seqUser.SetUserReadSeqToDB(ctx, conversationID, userID, seq); err != nil {
+		if err := db.seqUser.SetUserReadSeq(ctx, conversationID, userID, seq); err != nil {
 			return err
 		}
 	}
 	return nil
 }
 
-func (db *msgTransferDatabase) SetHasReadSeqToDB(ctx context.Context, userID string, conversationID string, hasReadSeq int64) error {
+func (db *msgTransferDatabase) SetHasReadSeqToDB(ctx context.Context, conversationID string, userSeqMap map[string]int64) error {
-	return db.seqUser.SetUserReadSeqToDB(ctx, conversationID, userID, hasReadSeq)
+	for userID, seq := range userSeqMap {
+		if err := db.seqUser.SetUserReadSeqToDB(ctx, conversationID, userID, seq); err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func (db *msgTransferDatabase) MsgToPushMQ(ctx context.Context, key, conversationID string, msg2mq *sdkws.MsgData) (int32, int64, error) {