diff --git a/go.mod b/go.mod
index 4eaa18ccc8..6c1d421c84 100644
--- a/go.mod
+++ b/go.mod
@@ -14,8 +14,8 @@ require (
 	github.com/gorilla/websocket v1.5.1
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
 	github.com/mitchellh/mapstructure v1.5.0
-	github.com/openimsdk/protocol v0.0.72-alpha.66
-	github.com/openimsdk/tools v0.0.50-alpha.57
+	github.com/openimsdk/protocol v0.0.72-alpha.67
+	github.com/openimsdk/tools v0.0.50-alpha.58
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_golang v1.18.0
 	github.com/stretchr/testify v1.9.0
diff --git a/go.sum b/go.sum
index 6e283eb668..86ed9ed6e3 100644
--- a/go.sum
+++ b/go.sum
@@ -347,10 +347,10 @@ github.com/onsi/gomega v1.25.0 h1:Vw7br2PCDYijJHSfBOWhov+8cAnUf8MfMaIOV323l6Y=
 github.com/onsi/gomega v1.25.0/go.mod h1:r+zV744Re+DiYCIPRlYOTxn0YkOLcAnW8k1xXdMPGhM=
 github.com/openimsdk/gomake v0.0.15-alpha.2 h1:5Q8yl8ezy2yx+q8/ucU/t4kJnDfCzNOrkXcDACCqtyM=
 github.com/openimsdk/gomake v0.0.15-alpha.2/go.mod h1:PndCozNc2IsQIciyn9mvEblYWZwJmAI+06z94EY+csI=
-github.com/openimsdk/protocol v0.0.72-alpha.66 h1:5KoDY6M4T+pXg449ScF6hqeQ+WenBwNyUJn/t8W0oBQ=
-github.com/openimsdk/protocol v0.0.72-alpha.66/go.mod h1:Iet+piS/jaS+kWWyj6EEr36mk4ISzIRYjoMSVA4dq2M=
-github.com/openimsdk/tools v0.0.50-alpha.57 h1:oIKV6vYhqp7TRmZ6Pe+r9RNl1D5s7aB/kE9yQVEWcSY=
-github.com/openimsdk/tools v0.0.50-alpha.57/go.mod h1:muCtxguNJv8lFwLei27UASu2Nvg4ERSeN0R4K5tivk0=
+github.com/openimsdk/protocol v0.0.72-alpha.67 h1:zlLbVkoT0OYsjO2RCutQuDFllcfNvZfdYchvlR6UIe0=
+github.com/openimsdk/protocol v0.0.72-alpha.67/go.mod h1:Iet+piS/jaS+kWWyj6EEr36mk4ISzIRYjoMSVA4dq2M=
+github.com/openimsdk/tools v0.0.50-alpha.58 h1:hkFL02Bzzp/l5x+tb7kJ9zes7hilh65EQ4qEIthsQX4=
+github.com/openimsdk/tools v0.0.50-alpha.58/go.mod h1:muCtxguNJv8lFwLei27UASu2Nvg4ERSeN0R4K5tivk0=
 github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
 github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
 github.com/pierrec/lz4/v4 v4.1.21 h1:yOVMLb6qSIDP67pl/5F7RepeKYu/VmTyEXvuMI5d9mQ=
diff --git a/internal/api/router.go b/internal/api/router.go
index d6bf4e130b..5e8038068c 100644
--- a/internal/api/router.go
+++ b/internal/api/router.go
@@ -164,6 +164,7 @@ func newGinRouter(disCov discovery.SvcDiscoveryRegistry, config *Config) *gin.En
 		authRouterGroup.POST("/get_user_token", a.GetUserToken)
 		authRouterGroup.POST("/parse_token", a.ParseToken)
 		authRouterGroup.POST("/force_logout", a.ForceLogout)
+
 	}
 	// Third service
 	thirdGroup := r.Group("/third")
diff --git a/internal/rpc/conversation/conversation.go b/internal/rpc/conversation/conversation.go
index f534ca6dea..696ada1521 100644
--- a/internal/rpc/conversation/conversation.go
+++ b/internal/rpc/conversation/conversation.go
@@ -763,3 +763,53 @@ func (c *conversationServer) GetPinnedConversationIDs(ctx context.Context, req *
 	}
 	return &pbconversation.GetPinnedConversationIDsResp{ConversationIDs: conversationIDs}, nil
 }
+
+func (c *conversationServer) ClearUserConversationMsg(ctx context.Context, req *pbconversation.ClearUserConversationMsgReq) (*pbconversation.ClearUserConversationMsgResp, error) {
+	conversations, err := c.conversationDatabase.FindRandConversation(ctx, req.Timestamp, int(req.Limit))
+	if err != nil {
+		return nil, err
+	}
+	latestMsgDestructTime := time.UnixMilli(req.Timestamp)
+	for i, conversation := range conversations {
+		if conversation.IsMsgDestruct == false || conversation.MsgDestructTime == 0 {
+			continue
+		}
+		rcpReq := &pbmsg.GetLastMessageSeqByTimeReq{ConversationID: conversation.ConversationID, Time: req.Timestamp - conversation.MsgDestructTime}
+		resp, err := pbmsg.GetLastMessageSeqByTime.Invoke(ctx, rcpReq)
+		if err != nil {
+			return nil, err
+		}
+		if resp.Seq <= 0 {
+			log.ZDebug(ctx, "ClearUserConversationMsg GetLastMessageSeqByTime seq <= 0", "index", i, "conversationID", conversation.ConversationID, "ownerUserID", conversation.OwnerUserID, "msgDestructTime", conversation.MsgDestructTime, "seq", resp.Seq)
+			if err := c.setConversationMinSeqAndLatestMsgDestructTime(ctx, conversation.ConversationID, conversation.OwnerUserID, -1, latestMsgDestructTime); err != nil {
+				return nil, err
+			}
+			continue
+		}
+		resp.Seq++
+		if err := c.setConversationMinSeqAndLatestMsgDestructTime(ctx, conversation.ConversationID, conversation.OwnerUserID, resp.Seq, latestMsgDestructTime); err != nil {
+			return nil, err
+		}
+		log.ZDebug(ctx, "ClearUserConversationMsg set min seq", "index", i, "conversationID", conversation.ConversationID, "ownerUserID", conversation.OwnerUserID, "seq", resp.Seq, "msgDestructTime", conversation.MsgDestructTime)
+	}
+	return &pbconversation.ClearUserConversationMsgResp{Count: int32(len(conversations))}, nil
+}
+
+func (c *conversationServer) setConversationMinSeqAndLatestMsgDestructTime(ctx context.Context, conversationID string, ownerUserID string, minSeq int64, latestMsgDestructTime time.Time) error {
+	update := map[string]any{
+		"latest_msg_destruct_time": latestMsgDestructTime,
+	}
+	if minSeq >= 0 {
+		req := &pbmsg.SetUserConversationMinSeqReq{ConversationID: conversationID, OwnerUserID: []string{ownerUserID}, MinSeq: minSeq}
+		if _, err := pbmsg.SetUserConversationMinSeqCaller.Invoke(ctx, req); err != nil {
+			return err
+		}
+		update["min_seq"] = minSeq
+	}
+
+	if err := c.conversationDatabase.UpdateUsersConversationField(ctx, []string{ownerUserID}, conversationID, update); err != nil {
+		return err
+	}
+	c.conversationNotificationSender.ConversationChangeNotification(ctx, ownerUserID, []string{conversationID})
+	return nil
+}
diff --git a/internal/rpc/msg/clear.go b/internal/rpc/msg/clear.go
index 7d62e7c8fa..7a2d363009 100644
--- a/internal/rpc/msg/clear.go
+++ b/internal/rpc/msg/clear.go
@@ -2,6 +2,7 @@ package msg
 
 import (
 	"context"
+	"strings"
 	"time"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/authverify"
@@ -9,7 +10,6 @@ import (
 	pbconv "github.com/openimsdk/protocol/conversation"
 	"github.com/openimsdk/protocol/msg"
 	"github.com/openimsdk/protocol/wrapperspb"
-	"github.com/openimsdk/tools/errs"
 	"github.com/openimsdk/tools/log"
 	"github.com/openimsdk/tools/mcontext"
 	"github.com/openimsdk/tools/utils/datautil"
@@ -19,63 +19,50 @@ import (
 )
 
 // hard delete in Database.
-func (m *msgServer) DestructMsgs(ctx context.Context, req *msg.DestructMsgsReq) (_ *msg.DestructMsgsResp, err error) {
+func (m *msgServer) DestructMsgs(ctx context.Context, req *msg.DestructMsgsReq) (*msg.DestructMsgsResp, error) {
 	if err := authverify.CheckAdmin(ctx, m.config.Share.IMAdminUserID); err != nil {
 		return nil, err
 	}
-	if req.Timestamp > time.Now().UnixMilli() {
-		return nil, errs.ErrArgs.WrapMsg("request millisecond timestamp error")
+	docs, err := m.MsgDatabase.GetRandBeforeMsg(ctx, req.Timestamp, int(req.Limit))
+	if err != nil {
+		return nil, err
 	}
-	var (
-		docNum   int
-		msgNum   int
-		start    = time.Now()
-		getLimit = 5000
-	)
-
-	destructMsg := func(ctx context.Context) (bool, error) {
-		docIDs, err := m.MsgDatabase.GetDocIDs(ctx)
-		if err != nil {
-			return false, err
-		}
-
-		msgs, err := m.MsgDatabase.GetBeforeMsg(ctx, req.Timestamp, docIDs, getLimit)
-		if err != nil {
-			return false, err
+	for i, doc := range docs {
+		if err := m.MsgDatabase.DeleteDoc(ctx, doc.DocID); err != nil {
+			return nil, err
 		}
-		if len(msgs) == 0 {
-			return false, nil
+		log.ZDebug(ctx, "DestructMsgs delete doc", "index", i, "docID", doc.DocID)
+		index := strings.LastIndex(doc.DocID, ":")
+		if index < 0 {
+			continue
 		}
-
-		for _, msg := range msgs {
-			index, err := m.MsgDatabase.DeleteDocMsgBefore(ctx, req.Timestamp, msg)
-			if err != nil {
-				return false, err
+		var minSeq int64
+		for _, model := range doc.Msg {
+			if model.Msg == nil {
+				continue
 			}
-			if len(index) == 0 {
-				return false, errs.ErrInternalServer.WrapMsg("delete doc msg failed")
+			if model.Msg.Seq > minSeq {
+				minSeq = model.Msg.Seq
 			}
-
-			docNum++
-			msgNum += len(index)
 		}
-
-		return true, nil
-	}
-
-	_, err = destructMsg(ctx)
-	if err != nil {
-		log.ZError(ctx, "clear msg failed", err, "docNum", docNum, "msgNum", msgNum, "cost", time.Since(start))
-		return nil, err
+		if minSeq <= 0 {
+			continue
+		}
+		conversationID := doc.DocID[:index]
+		if conversationID == "" {
+			continue
+		}
+		minSeq++
+		if err := m.MsgDatabase.SetMinSeq(ctx, conversationID, minSeq); err != nil {
+			return nil, err
+		}
+		log.ZDebug(ctx, "DestructMsgs delete doc set min seq", "index", i, "docID", doc.DocID, "conversationID", conversationID, "setMinSeq", minSeq)
 	}
-
-	log.ZDebug(ctx, "clearing message", "docNum", docNum, "msgNum", msgNum, "cost", time.Since(start))
-
-	return &msg.DestructMsgsResp{}, nil
+	return &msg.DestructMsgsResp{Count: int32(len(docs))}, nil
 }
 
 // soft delete for user self
-func (m *msgServer) ClearMsg(ctx context.Context, req *msg.ClearMsgReq) (_ *msg.ClearMsgResp, err error) {
+func (m *msgServer) ClearMsg(ctx context.Context, req *msg.ClearMsgReq) (*msg.ClearMsgResp, error) {
 	temp := convert.ConversationsPb2DB(req.Conversations)
 
 	batchNum := 100
@@ -137,3 +124,11 @@ func (m *msgServer) ClearMsg(ctx context.Context, req *msg.ClearMsgReq) (_ *msg.
 
 	return nil, nil
 }
+
+func (m *msgServer) GetLastMessageSeqByTime(ctx context.Context, req *msg.GetLastMessageSeqByTimeReq) (*msg.GetLastMessageSeqByTimeResp, error) {
+	seq, err := m.MsgDatabase.GetLastMessageSeqByTime(ctx, req.ConversationID, req.Time)
+	if err != nil {
+		return nil, err
+	}
+	return &msg.GetLastMessageSeqByTimeResp{Seq: seq}, nil
+}
diff --git a/internal/rpc/third/s3.go b/internal/rpc/third/s3.go
index b4b064d7f4..8796fe824e 100644
--- a/internal/rpc/third/s3.go
+++ b/internal/rpc/third/s3.go
@@ -19,17 +19,14 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
+	"github.com/openimsdk/open-im-server/v3/pkg/authverify"
 	"path"
 	"strconv"
 	"time"
 
-	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
-	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
-	"go.mongodb.org/mongo-driver/mongo"
-
 	"github.com/google/uuid"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/servererrs"
-	"github.com/openimsdk/protocol/sdkws"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
 	"github.com/openimsdk/protocol/third"
 	"github.com/openimsdk/tools/errs"
 	"github.com/openimsdk/tools/log"
@@ -288,87 +285,35 @@ func (t *thirdServer) apiAddress(prefix, name string) string {
 }
 
 func (t *thirdServer) DeleteOutdatedData(ctx context.Context, req *third.DeleteOutdatedDataReq) (*third.DeleteOutdatedDataResp, error) {
-	var conf config.Third
-	expireTime := time.UnixMilli(req.ExpireTime)
-
-	findPagination := &sdkws.RequestPagination{
-		PageNumber: 1,
-		ShowNumber: 500,
+	if err := authverify.CheckAdmin(ctx, t.config.Share.IMAdminUserID); err != nil {
+		return nil, err
 	}
-
+	engine := t.config.RpcConfig.Object.Enable
+	expireTime := time.UnixMilli(req.ExpireTime)
 	// Find all expired data in S3 database
-	total, models, err := t.s3dataBase.FindNeedDeleteObjectByDB(ctx, expireTime, req.ObjectGroup, findPagination)
-	if err != nil && errs.Unwrap(err) != mongo.ErrNoDocuments {
-		return nil, errs.Wrap(err)
-	}
-
-	if total == 0 {
-		log.ZDebug(ctx, "Not have OutdatedData", "delete Total", total)
-		return &third.DeleteOutdatedDataResp{Count: int32(total)}, nil
-	}
-
-	needDelObjectKeys := make([]string, len(models))
-	for _, model := range models {
-		needDelObjectKeys = append(needDelObjectKeys, model.Key)
+	models, err := t.s3dataBase.FindExpirationObject(ctx, engine, expireTime, req.ObjectGroup, int64(req.Limit))
+	if err != nil {
+		return nil, err
 	}
-
-	// Remove duplicate keys, have the same key use in different models
-	needDelObjectKeys = datautil.Distinct(needDelObjectKeys)
-
-	for _, key := range needDelObjectKeys {
-		// Find all models by key
-		keyModels, err := t.s3dataBase.FindModelsByKey(ctx, key)
-		if err != nil && errs.Unwrap(err) != mongo.ErrNoDocuments {
+	for i, obj := range models {
+		if err := t.s3dataBase.DeleteSpecifiedData(ctx, engine, []string{obj.Name}); err != nil {
 			return nil, errs.Wrap(err)
 		}
-
-		// check keyModels, if all keyModels.
-		needDelKey := true // Default can delete
-		for _, keymodel := range keyModels {
-			// If group is empty or CreateTime is after expireTime, can't delete this key
-			if keymodel.Group == "" || keymodel.CreateTime.After(expireTime) {
-				needDelKey = false
-				break
-			}
-		}
-
-		// If this object is not referenced by not expire data, delete it
-		if needDelKey && t.minio != nil {
-			// If have a thumbnail, delete it
-			thumbnailKey, _ := t.getMinioImageThumbnailKey(ctx, key)
-			if thumbnailKey != "" {
-				err := t.s3dataBase.DeleteObject(ctx, thumbnailKey)
-				if err != nil {
-					log.ZWarn(ctx, "Delete thumbnail object is error:", errs.Wrap(err), "thumbnailKey", thumbnailKey)
-				}
-			}
-
-			// Delete object
-			err = t.s3dataBase.DeleteObject(ctx, key)
-			if err != nil {
-				log.ZWarn(ctx, "Delete object is error", errs.Wrap(err), "object key", key)
-			}
-
-			// Delete cache key
-			err = t.s3dataBase.DelS3Key(ctx, conf.Object.Enable, key)
-			if err != nil {
-				log.ZWarn(ctx, "Delete cache key is error:", errs.Wrap(err), "cache S3 key:", key)
-			}
+		if err := t.s3dataBase.DelS3Key(ctx, engine, obj.Name); err != nil {
+			return nil, err
 		}
-	}
-
-	// handle delete data in S3 database
-	for _, model := range models {
-		// Delete all expired data row in S3 database
-		err := t.s3dataBase.DeleteSpecifiedData(ctx, model.Engine, model.Name)
+		count, err := t.s3dataBase.GetKeyCount(ctx, engine, obj.Key)
 		if err != nil {
-			return nil, errs.Wrap(err)
+			return nil, err
+		}
+		log.ZDebug(ctx, "delete s3 object record", "index", i, "s3", obj, "count", count)
+		if count == 0 {
+			if err := t.s3.DeleteObject(ctx, obj.Key); err != nil {
+				return nil, err
+			}
 		}
 	}
-
-	log.ZDebug(ctx, "DeleteOutdatedData", "delete Total", total)
-
-	return &third.DeleteOutdatedDataResp{Count: int32(total)}, nil
+	return &third.DeleteOutdatedDataResp{Count: int32(len(models))}, nil
 }
 
 type FormDataMate struct {
diff --git a/internal/rpc/third/third.go b/internal/rpc/third/third.go
index 77e6d459fa..dc964fdb15 100644
--- a/internal/rpc/third/third.go
+++ b/internal/rpc/third/third.go
@@ -44,7 +44,7 @@ type thirdServer struct {
 	s3dataBase    controller.S3Database
 	defaultExpire time.Duration
 	config        *Config
-	minio         *minio.Minio
+	s3            s3.Interface
 }
 
 type Config struct {
@@ -79,13 +79,11 @@ func Start(ctx context.Context, config *Config, client discovery.SvcDiscoveryReg
 	// Select the oss method according to the profile policy
 	enable := config.RpcConfig.Object.Enable
 	var (
-		o        s3.Interface
-		minioCli *minio.Minio
+		o s3.Interface
 	)
 	switch enable {
 	case "minio":
-		minioCli, err = minio.NewMinio(ctx, redis.NewMinioCache(rdb), *config.MinioConfig.Build())
-		o = minioCli
+		o, err = minio.NewMinio(ctx, redis.NewMinioCache(rdb), *config.MinioConfig.Build())
 	case "cos":
 		o, err = cos.NewCos(*config.RpcConfig.Object.Cos.Build())
 	case "oss":
@@ -106,15 +104,11 @@ func Start(ctx context.Context, config *Config, client discovery.SvcDiscoveryReg
 		s3dataBase:    controller.NewS3Database(rdb, o, s3db),
 		defaultExpire: time.Hour * 24 * 7,
 		config:        config,
-		minio:         minioCli,
+		s3:            o,
 	})
 	return nil
 }
 
-func (t *thirdServer) getMinioImageThumbnailKey(ctx context.Context, name string) (string, error) {
-	return t.minio.GetImageThumbnailKey(ctx, name)
-}
-
 func (t *thirdServer) FcmUpdateToken(ctx context.Context, req *third.FcmUpdateTokenReq) (resp *third.FcmUpdateTokenResp, err error) {
 	err = t.thirdDatabase.FcmUpdateToken(ctx, req.Account, int(req.PlatformID), req.FcmToken, req.ExpireTime)
 	if err != nil {
diff --git a/internal/tools/cron_task.go b/internal/tools/cron_task.go
index 2fe7d0e395..049a6199cf 100644
--- a/internal/tools/cron_task.go
+++ b/internal/tools/cron_task.go
@@ -2,10 +2,6 @@ package tools
 
 import (
 	"context"
-	"fmt"
-	"os"
-	"time"
-
 	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
 	kdisc "github.com/openimsdk/open-im-server/v3/pkg/common/discoveryregister"
 	pbconversation "github.com/openimsdk/protocol/conversation"
@@ -60,87 +56,58 @@ func Start(ctx context.Context, config *CronTaskConfig) error {
 		return err
 	}
 
-	msgClient := msg.NewMsgClient(msgConn)
-	conversationClient := pbconversation.NewConversationClient(conversationConn)
-	thirdClient := third.NewThirdClient(thirdConn)
-
-	crontab := cron.New()
-
-	// scheduled hard delete outdated Msgs in specific time.
-	destructMsgsFunc := func() {
-		now := time.Now()
-		deltime := now.Add(-time.Hour * 24 * time.Duration(config.CronTask.RetainChatRecords))
-		ctx := mcontext.SetOperationID(ctx, fmt.Sprintf("cron_%d_%d", os.Getpid(), deltime.UnixMilli()))
-		log.ZDebug(ctx, "Destruct chat records", "deltime", deltime, "timestamp", deltime.UnixMilli())
-
-		if _, err := msgClient.DestructMsgs(ctx, &msg.DestructMsgsReq{Timestamp: deltime.UnixMilli()}); err != nil {
-			log.ZError(ctx, "cron destruct chat records failed", err, "deltime", deltime, "cont", time.Since(now))
-			return
-		}
-		log.ZDebug(ctx, "cron destruct chat records success", "deltime", deltime, "cont", time.Since(now))
-	}
-	if _, err := crontab.AddFunc(config.CronTask.CronExecuteTime, destructMsgsFunc); err != nil {
-		return errs.Wrap(err)
+	srv := &cronServer{
+		ctx:                ctx,
+		config:             config,
+		cron:               cron.New(),
+		msgClient:          msg.NewMsgClient(msgConn),
+		conversationClient: pbconversation.NewConversationClient(conversationConn),
+		thirdClient:        third.NewThirdClient(thirdConn),
 	}
 
-	// scheduled soft delete outdated Msgs in specific time when user set `is_msg_destruct` feature.
-	clearMsgFunc := func() {
-		now := time.Now()
-		ctx := mcontext.SetOperationID(ctx, fmt.Sprintf("cron_%d_%d", os.Getpid(), now.UnixMilli()))
-		log.ZDebug(ctx, "clear msg cron start", "now", now)
-
-		conversations, err := conversationClient.GetConversationsNeedClearMsg(ctx, &pbconversation.GetConversationsNeedClearMsgReq{})
-		if err != nil {
-			log.ZError(ctx, "Get conversation need Destruct msgs failed.", err)
-			return
-		}
-
-		_, err = msgClient.ClearMsg(ctx, &msg.ClearMsgReq{Conversations: conversations.Conversations})
-		if err != nil {
-			log.ZError(ctx, "Clear Msg failed.", err)
-			return
-		}
-
-		log.ZDebug(ctx, "clear msg cron task completed", "cont", time.Since(now))
-	}
-	if _, err := crontab.AddFunc(config.CronTask.CronExecuteTime, clearMsgFunc); err != nil {
-		return errs.Wrap(err)
+	if err := srv.registerClearS3(); err != nil {
+		return err
 	}
-
-	// scheduled delete outdated file Objects and their datas in specific time.
-	deleteObjectFunc := func() {
-		now := time.Now()
-		executeNum := 5
-		// number of pagination. if need modify, need update value in third.DeleteOutdatedData
-		pageShowNumber := 500
-		deleteTime := now.Add(-time.Hour * 24 * time.Duration(config.CronTask.FileExpireTime))
-		ctx := mcontext.SetOperationID(ctx, fmt.Sprintf("cron_%d_%d", os.Getpid(), deleteTime.UnixMilli()))
-		log.ZDebug(ctx, "deleteoutDatedData", "deletetime", deleteTime, "timestamp", deleteTime.UnixMilli())
-
-		if len(config.CronTask.DeleteObjectType) == 0 {
-			log.ZDebug(ctx, "cron deleteoutDatedData not type need delete", "deletetime", deleteTime, "DeleteObjectType", config.CronTask.DeleteObjectType, "cont", time.Since(now))
-			return
-		}
-
-		for i := 0; i < executeNum; i++ {
-			resp, err := thirdClient.DeleteOutdatedData(ctx, &third.DeleteOutdatedDataReq{ExpireTime: deleteTime.UnixMilli(), ObjectGroup: config.CronTask.DeleteObjectType})
-			if err != nil {
-				log.ZError(ctx, "cron deleteoutDatedData failed", err, "deleteTime", deleteTime, "cont", time.Since(now))
-				return
-			}
-			if resp.Count == 0 || resp.Count < int32(pageShowNumber) {
-				break
-			}
-		}
-
-		log.ZDebug(ctx, "cron deleteoutDatedData success", "deltime", deleteTime, "cont", time.Since(now))
+	if err := srv.registerDeleteMsg(); err != nil {
+		return err
 	}
-	if _, err := crontab.AddFunc(config.CronTask.CronExecuteTime, deleteObjectFunc); err != nil {
-		return errs.Wrap(err)
+	if err := srv.registerClearUserMsg(); err != nil {
+		return err
 	}
-
 	log.ZDebug(ctx, "start cron task", "CronExecuteTime", config.CronTask.CronExecuteTime)
-	crontab.Start()
+	srv.cron.Start()
 	<-ctx.Done()
 	return nil
 }
+
+type cronServer struct {
+	ctx                context.Context
+	config             *CronTaskConfig
+	cron               *cron.Cron
+	msgClient          msg.MsgClient
+	conversationClient pbconversation.ConversationClient
+	thirdClient        third.ThirdClient
+}
+
+func (c *cronServer) registerClearS3() error {
+	if c.config.CronTask.FileExpireTime <= 0 || len(c.config.CronTask.DeleteObjectType) == 0 {
+		log.ZInfo(c.ctx, "disable scheduled cleanup of s3", "fileExpireTime", c.config.CronTask.FileExpireTime, "deleteObjectType", c.config.CronTask.DeleteObjectType)
+		return nil
+	}
+	_, err := c.cron.AddFunc(c.config.CronTask.CronExecuteTime, c.clearS3)
+	return errs.WrapMsg(err, "failed to register clear s3 cron task")
+}
+
+func (c *cronServer) registerDeleteMsg() error {
+	if c.config.CronTask.RetainChatRecords <= 0 {
+		log.ZInfo(c.ctx, "disable scheduled cleanup of chat records", "retainChatRecords", c.config.CronTask.RetainChatRecords)
+		return nil
+	}
+	_, err := c.cron.AddFunc(c.config.CronTask.CronExecuteTime, c.deleteMsg)
+	return errs.WrapMsg(err, "failed to register delete msg cron task")
+}
+
+func (c *cronServer) registerClearUserMsg() error {
+	_, err := c.cron.AddFunc(c.config.CronTask.CronExecuteTime, c.clearUserMsg)
+	return errs.WrapMsg(err, "failed to register clear user msg cron task")
+}
diff --git a/internal/tools/cron_test.go b/internal/tools/cron_test.go
new file mode 100644
index 0000000000..8903490698
--- /dev/null
+++ b/internal/tools/cron_test.go
@@ -0,0 +1,63 @@
+package tools
+
+import (
+	"context"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
+	kdisc "github.com/openimsdk/open-im-server/v3/pkg/common/discoveryregister"
+	pbconversation "github.com/openimsdk/protocol/conversation"
+	"github.com/openimsdk/protocol/msg"
+	"github.com/openimsdk/protocol/third"
+	"github.com/openimsdk/tools/mcontext"
+	"github.com/openimsdk/tools/mw"
+	"github.com/robfig/cron/v3"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	"testing"
+)
+
+func TestName(t *testing.T) {
+	conf := &config.Discovery{
+		Enable: config.ETCD,
+		Etcd: config.Etcd{
+			RootDirectory: "openim",
+			Address:       []string{"localhost:12379"},
+		},
+	}
+	client, err := kdisc.NewDiscoveryRegister(conf, "source")
+	if err != nil {
+		panic(err)
+	}
+	client.AddOption(mw.GrpcClient(), grpc.WithTransportCredentials(insecure.NewCredentials()))
+	ctx := mcontext.SetOpUserID(context.Background(), "imAdmin")
+	msgConn, err := client.GetConn(ctx, "msg-rpc-service")
+	if err != nil {
+		panic(err)
+	}
+	thirdConn, err := client.GetConn(ctx, "third-rpc-service")
+	if err != nil {
+		panic(err)
+	}
+
+	conversationConn, err := client.GetConn(ctx, "conversation-rpc-service")
+	if err != nil {
+		panic(err)
+	}
+
+	srv := &cronServer{
+		ctx: ctx,
+		config: &CronTaskConfig{
+			CronTask: config.CronTask{
+				RetainChatRecords: 1,
+				FileExpireTime:    1,
+				DeleteObjectType:  []string{"msg-picture", "msg-file", "msg-voice", "msg-video", "msg-video-snapshot", "sdklog", ""},
+			},
+		},
+		cron:               cron.New(),
+		msgClient:          msg.NewMsgClient(msgConn),
+		conversationClient: pbconversation.NewConversationClient(conversationConn),
+		thirdClient:        third.NewThirdClient(thirdConn),
+	}
+	srv.deleteMsg()
+	//srv.clearS3()
+	//srv.clearUserMsg()
+}
diff --git a/internal/tools/msg.go b/internal/tools/msg.go
new file mode 100644
index 0000000000..cc00cc5b83
--- /dev/null
+++ b/internal/tools/msg.go
@@ -0,0 +1,36 @@
+package tools
+
+import (
+	"fmt"
+	"github.com/openimsdk/protocol/msg"
+	"github.com/openimsdk/tools/log"
+	"github.com/openimsdk/tools/mcontext"
+	"os"
+	"time"
+)
+
+func (c *cronServer) deleteMsg() {
+	now := time.Now()
+	deltime := now.Add(-time.Hour * 24 * time.Duration(c.config.CronTask.RetainChatRecords))
+	operationID := fmt.Sprintf("cron_msg_%d_%d", os.Getpid(), deltime.UnixMilli())
+	ctx := mcontext.SetOperationID(c.ctx, operationID)
+	log.ZDebug(ctx, "Destruct chat records", "deltime", deltime, "timestamp", deltime.UnixMilli())
+	const (
+		deleteCount = 10000
+		deleteLimit = 50
+	)
+	var count int
+	for i := 1; i <= deleteCount; i++ {
+		ctx := mcontext.SetOperationID(c.ctx, fmt.Sprintf("%s_%d", operationID, i))
+		resp, err := c.msgClient.DestructMsgs(ctx, &msg.DestructMsgsReq{Timestamp: deltime.UnixMilli(), Limit: deleteLimit})
+		if err != nil {
+			log.ZError(ctx, "cron destruct chat records failed", err)
+			break
+		}
+		count += int(resp.Count)
+		if resp.Count < deleteLimit {
+			break
+		}
+	}
+	log.ZDebug(ctx, "cron destruct chat records end", "deltime", deltime, "cont", time.Since(now), "count", count)
+}
diff --git a/internal/tools/s3.go b/internal/tools/s3.go
new file mode 100644
index 0000000000..9b6b9c4089
--- /dev/null
+++ b/internal/tools/s3.go
@@ -0,0 +1,79 @@
+package tools
+
+import (
+	"fmt"
+	"github.com/openimsdk/protocol/third"
+	"github.com/openimsdk/tools/log"
+	"github.com/openimsdk/tools/mcontext"
+	"os"
+	"time"
+)
+
+func (c *cronServer) clearS3() {
+	start := time.Now()
+	deleteTime := start.Add(-time.Hour * 24 * time.Duration(c.config.CronTask.FileExpireTime))
+	operationID := fmt.Sprintf("cron_s3_%d_%d", os.Getpid(), deleteTime.UnixMilli())
+	ctx := mcontext.SetOperationID(c.ctx, operationID)
+	log.ZDebug(ctx, "deleteoutDatedData", "deletetime", deleteTime, "timestamp", deleteTime.UnixMilli())
+	const (
+		deleteCount = 10000
+		deleteLimit = 100
+	)
+
+	var count int
+	for i := 1; i <= deleteCount; i++ {
+		resp, err := c.thirdClient.DeleteOutdatedData(ctx, &third.DeleteOutdatedDataReq{ExpireTime: deleteTime.UnixMilli(), ObjectGroup: c.config.CronTask.DeleteObjectType, Limit: deleteLimit})
+		if err != nil {
+			log.ZError(ctx, "cron deleteoutDatedData failed", err)
+			return
+		}
+		count += int(resp.Count)
+		if resp.Count < deleteLimit {
+			break
+		}
+	}
+	log.ZDebug(ctx, "cron deleteoutDatedData success", "deltime", deleteTime, "cont", time.Since(start), "count", count)
+}
+
+//	var req *third.DeleteOutdatedDataReq
+//	count1, err := ExtractField(ctx, c.thirdClient.DeleteOutdatedData, req, (*third.DeleteOutdatedDataResp).GetCount)
+//
+//	c.thirdClient.DeleteOutdatedData(ctx, &third.DeleteOutdatedDataReq{})
+//	msggateway.GetUsersOnlineStatusCaller.Invoke(ctx, &msggateway.GetUsersOnlineStatusReq{})
+//
+//	var cli ThirdClient
+//
+//	c111, err := cli.DeleteOutdatedData(ctx, 100)
+//
+//	cli.ThirdClient.DeleteOutdatedData(ctx, &third.DeleteOutdatedDataReq{})
+//
+//	cli.AuthSign(ctx, &third.AuthSignReq{})
+//
+//	cli.SetAppBadge()
+//
+//}
+//
+//func extractField[A, B, C any](ctx context.Context, fn func(ctx context.Context, req *A, opts ...grpc.CallOption) (*B, error), req *A, get func(*B) C) (C, error) {
+//	resp, err := fn(ctx, req)
+//	if err != nil {
+//		var c C
+//		return c, err
+//	}
+//	return get(resp), nil
+//}
+//
+//func ignore(_ any, err error) error {
+//	return err
+//}
+//
+//type ThirdClient struct {
+//	third.ThirdClient
+//}
+//
+//func (c *ThirdClient) DeleteOutdatedData(ctx context.Context, expireTime int64) (int32, error) {
+//	return extractField(ctx, c.ThirdClient.DeleteOutdatedData, &third.DeleteOutdatedDataReq{ExpireTime: expireTime}, (*third.DeleteOutdatedDataResp).GetCount)
+//}
+//
+//func (c *ThirdClient) DeleteOutdatedData1(ctx context.Context, expireTime int64) error {
+//	return ignore(c.ThirdClient.DeleteOutdatedData(ctx, &third.DeleteOutdatedDataReq{ExpireTime: expireTime}))
+//}
diff --git a/internal/tools/user_msg.go b/internal/tools/user_msg.go
new file mode 100644
index 0000000000..a4afa769ed
--- /dev/null
+++ b/internal/tools/user_msg.go
@@ -0,0 +1,34 @@
+package tools
+
+import (
+	"fmt"
+	pbconversation "github.com/openimsdk/protocol/conversation"
+	"github.com/openimsdk/tools/log"
+	"github.com/openimsdk/tools/mcontext"
+	"os"
+	"time"
+)
+
+func (c *cronServer) clearUserMsg() {
+	now := time.Now()
+	operationID := fmt.Sprintf("cron_user_msg_%d_%d", os.Getpid(), now.UnixMilli())
+	ctx := mcontext.SetOperationID(c.ctx, operationID)
+	log.ZDebug(ctx, "clear user msg cron start")
+	const (
+		deleteCount = 10000
+		deleteLimit = 100
+	)
+	var count int
+	for i := 1; i <= deleteCount; i++ {
+		resp, err := c.conversationClient.ClearUserConversationMsg(ctx, &pbconversation.ClearUserConversationMsgReq{Timestamp: now.UnixMilli(), Limit: deleteLimit})
+		if err != nil {
+			log.ZError(ctx, "ClearUserConversationMsg failed.", err)
+			return
+		}
+		count += int(resp.Count)
+		if resp.Count < deleteLimit {
+			break
+		}
+	}
+	log.ZDebug(ctx, "clear user msg cron task completed", "cont", time.Since(now), "count", count)
+}
diff --git a/pkg/common/storage/controller/conversation.go b/pkg/common/storage/controller/conversation.go
index bf41cce957..d4088e0c0e 100644
--- a/pkg/common/storage/controller/conversation.go
+++ b/pkg/common/storage/controller/conversation.go
@@ -74,6 +74,8 @@ type ConversationDatabase interface {
 	GetNotNotifyConversationIDs(ctx context.Context, userID string) ([]string, error)
 	// GetPinnedConversationIDs gets pinned conversationIDs by userID
 	GetPinnedConversationIDs(ctx context.Context, userID string) ([]string, error)
+	// FindRandConversation finds random conversations based on the specified timestamp and limit.
+	FindRandConversation(ctx context.Context, ts int64, limit int) ([]*relationtb.Conversation, error)
 }
 
 func NewConversationDatabase(conversation database.Conversation, cache cache.ConversationCache, tx tx.Tx) ConversationDatabase {
@@ -401,3 +403,7 @@ func (c *conversationDatabase) GetPinnedConversationIDs(ctx context.Context, use
 	}
 	return conversationIDs, nil
 }
+
+func (c *conversationDatabase) FindRandConversation(ctx context.Context, ts int64, limit int) ([]*relationtb.Conversation, error) {
+	return c.conversationDB.FindRandConversation(ctx, ts, limit)
+}
diff --git a/pkg/common/storage/controller/msg.go b/pkg/common/storage/controller/msg.go
index 3c3cd9671b..c29544c333 100644
--- a/pkg/common/storage/controller/msg.go
+++ b/pkg/common/storage/controller/msg.go
@@ -18,7 +18,6 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
-	"strings"
 	"time"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/database"
@@ -69,6 +68,7 @@ type CommonMsgDatabase interface {
 	GetMaxSeqs(ctx context.Context, conversationIDs []string) (map[string]int64, error)
 	GetMaxSeq(ctx context.Context, conversationID string) (int64, error)
 	SetMinSeqs(ctx context.Context, seqs map[string]int64) error
+	SetMinSeq(ctx context.Context, conversationID string, seq int64) error
 
 	SetUserConversationsMinSeqs(ctx context.Context, userID string, seqs map[string]int64) (err error)
 	SetHasReadSeq(ctx context.Context, userID string, conversationID string, hasReadSeq int64) error
@@ -95,13 +95,16 @@ type CommonMsgDatabase interface {
 	ConvertMsgsDocLen(ctx context.Context, conversationIDs []string)
 
 	// get Msg when destruct msg before
-	GetBeforeMsg(ctx context.Context, ts int64, docIds []string, limit int) ([]*model.MsgDocModel, error)
-	DeleteDocMsgBefore(ctx context.Context, ts int64, doc *model.MsgDocModel) ([]int, error)
+	//DeleteDocMsgBefore(ctx context.Context, ts int64, doc *model.MsgDocModel) ([]int, error)
 
-	GetDocIDs(ctx context.Context) ([]string, error)
+	GetRandBeforeMsg(ctx context.Context, ts int64, limit int) ([]*model.MsgDocModel, error)
 
 	SetUserConversationsMaxSeq(ctx context.Context, conversationID string, userID string, seq int64) error
 	SetUserConversationsMinSeq(ctx context.Context, conversationID string, userID string, seq int64) error
+
+	DeleteDoc(ctx context.Context, docID string) error
+
+	GetLastMessageSeqByTime(ctx context.Context, conversationID string, time int64) (int64, error)
 }
 
 func NewCommonMsgDatabase(msgDocModel database.Msg, msg cache.MsgCache, seqUser cache.SeqUser, seqConversation cache.SeqConversationCache, kafkaConf *config.Kafka) (CommonMsgDatabase, error) {
@@ -806,9 +809,10 @@ func (db *commonMsgDatabase) GetMaxSeq(ctx context.Context, conversationID strin
 	return db.seqConversation.GetMaxSeq(ctx, conversationID)
 }
 
-func (db *commonMsgDatabase) SetMinSeq(ctx context.Context, conversationID string, minSeq int64) error {
-	return db.seqConversation.SetMinSeq(ctx, conversationID, minSeq)
-}
+//
+//func (db *commonMsgDatabase) SetMinSeq(ctx context.Context, conversationID string, minSeq int64) error {
+//	return db.seqConversation.SetMinSeq(ctx, conversationID, minSeq)
+//}
 
 func (db *commonMsgDatabase) SetMinSeqs(ctx context.Context, seqs map[string]int64) error {
 	return db.seqConversation.SetMinSeqs(ctx, seqs)
@@ -947,56 +951,40 @@ func (db *commonMsgDatabase) ConvertMsgsDocLen(ctx context.Context, conversation
 	db.msgDocDatabase.ConvertMsgsDocLen(ctx, conversationIDs)
 }
 
-func (db *commonMsgDatabase) GetBeforeMsg(ctx context.Context, ts int64, docIDs []string, limit int) ([]*model.MsgDocModel, error) {
-	var msgs []*model.MsgDocModel
-	for i := 0; i < len(docIDs); i += 1000 {
-		end := i + 1000
-		if end > len(docIDs) {
-			end = len(docIDs)
-		}
-
-		res, err := db.msgDocDatabase.GetBeforeMsg(ctx, ts, docIDs[i:end], limit)
-		if err != nil {
-			return nil, err
-		}
-		msgs = append(msgs, res...)
-
-		if len(msgs) >= limit {
-			return msgs[:limit], nil
-		}
-	}
-	return msgs, nil
+func (db *commonMsgDatabase) GetRandBeforeMsg(ctx context.Context, ts int64, limit int) ([]*model.MsgDocModel, error) {
+	return db.msgDocDatabase.GetRandBeforeMsg(ctx, ts, limit)
 }
 
-func (db *commonMsgDatabase) DeleteDocMsgBefore(ctx context.Context, ts int64, doc *model.MsgDocModel) ([]int, error) {
-	var notNull int
-	index := make([]int, 0, len(doc.Msg))
-	for i, message := range doc.Msg {
-		if message.Msg != nil {
-			notNull++
-			if message.Msg.SendTime < ts {
-				index = append(index, i)
-			}
-		}
-	}
-	if len(index) == 0 {
-		return index, nil
-	}
-	maxSeq := doc.Msg[index[len(index)-1]].Msg.Seq
-	conversationID := doc.DocID[:strings.LastIndex(doc.DocID, ":")]
-	if err := db.setMinSeq(ctx, conversationID, maxSeq+1); err != nil {
-		return index, err
-	}
-	if len(index) == notNull {
-		log.ZDebug(ctx, "Delete db in Doc", "DocID", doc.DocID, "index", index, "maxSeq", maxSeq)
-		return index, db.msgDocDatabase.DeleteDoc(ctx, doc.DocID)
-	} else {
-		log.ZDebug(ctx, "delete db in index", "DocID", doc.DocID, "index", index, "maxSeq", maxSeq)
-		return index, db.msgDocDatabase.DeleteMsgByIndex(ctx, doc.DocID, index)
-	}
-}
-
-func (db *commonMsgDatabase) setMinSeq(ctx context.Context, conversationID string, seq int64) error {
+//
+//func (db *commonMsgDatabase) DeleteDocMsgBefore(ctx context.Context, ts int64, doc *model.MsgDocModel) ([]int, error) {
+//	var notNull int
+//	index := make([]int, 0, len(doc.Msg))
+//	for i, message := range doc.Msg {
+//		if message.Msg != nil {
+//			notNull++
+//			if message.Msg.SendTime < ts {
+//				index = append(index, i)
+//			}
+//		}
+//	}
+//	if len(index) == 0 {
+//		return index, nil
+//	}
+//	maxSeq := doc.Msg[index[len(index)-1]].Msg.Seq
+//	conversationID := doc.DocID[:strings.LastIndex(doc.DocID, ":")]
+//	if err := db.SetMinSeq(ctx, conversationID, maxSeq+1); err != nil {
+//		return index, err
+//	}
+//	if len(index) == notNull {
+//		log.ZDebug(ctx, "Delete db in Doc", "DocID", doc.DocID, "index", index, "maxSeq", maxSeq)
+//		return index, db.msgDocDatabase.DeleteDoc(ctx, doc.DocID)
+//	} else {
+//		log.ZDebug(ctx, "delete db in index", "DocID", doc.DocID, "index", index, "maxSeq", maxSeq)
+//		return index, db.msgDocDatabase.DeleteMsgByIndex(ctx, doc.DocID, index)
+//	}
+//}
+
+func (db *commonMsgDatabase) SetMinSeq(ctx context.Context, conversationID string, seq int64) error {
 	dbSeq, err := db.seqConversation.GetMinSeq(ctx, conversationID)
 	if err != nil {
 		if errors.Is(errs.Unwrap(err), redis.Nil) {
@@ -1010,8 +998,8 @@ func (db *commonMsgDatabase) setMinSeq(ctx context.Context, conversationID strin
 	return db.seqConversation.SetMinSeq(ctx, conversationID, seq)
 }
 
-func (db *commonMsgDatabase) GetDocIDs(ctx context.Context) ([]string, error) {
-	return db.msgDocDatabase.GetDocIDs(ctx)
+func (db *commonMsgDatabase) GetRandDocIDs(ctx context.Context, limit int) ([]string, error) {
+	return db.msgDocDatabase.GetRandDocIDs(ctx, limit)
 }
 
 func (db *commonMsgDatabase) GetCacheMaxSeqWithTime(ctx context.Context, conversationIDs []string) (map[string]database.SeqTime, error) {
@@ -1026,3 +1014,11 @@ func (db *commonMsgDatabase) GetMaxSeqsWithTime(ctx context.Context, conversatio
 	// todo: only the time in the redis cache will be taken, not the message time
 	return db.seqConversation.GetMaxSeqsWithTime(ctx, conversationIDs)
 }
+
+func (db *commonMsgDatabase) DeleteDoc(ctx context.Context, docID string) error {
+	return db.msgDocDatabase.DeleteDoc(ctx, docID)
+}
+
+func (db *commonMsgDatabase) GetLastMessageSeqByTime(ctx context.Context, conversationID string, time int64) (int64, error) {
+	return db.msgDocDatabase.GetLastMessageSeqByTime(ctx, conversationID, time)
+}
diff --git a/pkg/common/storage/controller/s3.go b/pkg/common/storage/controller/s3.go
index 4e5ad18b6e..6693d2ddea 100644
--- a/pkg/common/storage/controller/s3.go
+++ b/pkg/common/storage/controller/s3.go
@@ -24,7 +24,6 @@ import (
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache"
-	"github.com/openimsdk/tools/db/pagination"
 	"github.com/openimsdk/tools/s3"
 	"github.com/openimsdk/tools/s3/cont"
 	"github.com/redis/go-redis/v9"
@@ -40,11 +39,10 @@ type S3Database interface {
 	SetObject(ctx context.Context, info *model.Object) error
 	StatObject(ctx context.Context, name string) (*s3.ObjectInfo, error)
 	FormData(ctx context.Context, name string, size int64, contentType string, duration time.Duration) (*s3.FormData, error)
-	FindNeedDeleteObjectByDB(ctx context.Context, duration time.Time, needDelType []string, pagination pagination.Pagination) (total int64, objects []*model.Object, err error)
-	DeleteObject(ctx context.Context, name string) error
-	DeleteSpecifiedData(ctx context.Context, engine string, name string) error
-	FindModelsByKey(ctx context.Context, key string) (objects []*model.Object, err error)
+	FindExpirationObject(ctx context.Context, engine string, expiration time.Time, needDelType []string, count int64) ([]*model.Object, error)
+	DeleteSpecifiedData(ctx context.Context, engine string, name []string) error
 	DelS3Key(ctx context.Context, engine string, keys ...string) error
+	GetKeyCount(ctx context.Context, engine string, key string) (int64, error)
 }
 
 func NewS3Database(rdb redis.UniversalClient, s3 s3.Interface, obj database.ObjectInfo) S3Database {
@@ -120,19 +118,17 @@ func (s *s3Database) StatObject(ctx context.Context, name string) (*s3.ObjectInf
 func (s *s3Database) FormData(ctx context.Context, name string, size int64, contentType string, duration time.Duration) (*s3.FormData, error) {
 	return s.s3.FormData(ctx, name, size, contentType, duration)
 }
-func (s *s3Database) FindNeedDeleteObjectByDB(ctx context.Context, duration time.Time, needDelType []string, pagination pagination.Pagination) (total int64, objects []*model.Object, err error) {
-	return s.db.FindNeedDeleteObjectByDB(ctx, duration, needDelType, pagination)
-}
 
-func (s *s3Database) DeleteObject(ctx context.Context, name string) error {
-	return s.s3.DeleteObject(ctx, name)
+func (s *s3Database) FindExpirationObject(ctx context.Context, engine string, expiration time.Time, needDelType []string, count int64) ([]*model.Object, error) {
+	return s.db.FindExpirationObject(ctx, engine, expiration, needDelType, count)
 }
-func (s *s3Database) DeleteSpecifiedData(ctx context.Context, engine string, name string) error {
-	return s.db.Delete(ctx, engine, name)
+
+func (s *s3Database) GetKeyCount(ctx context.Context, engine string, key string) (int64, error) {
+	return s.db.GetKeyCount(ctx, engine, key)
 }
 
-func (s *s3Database) FindModelsByKey(ctx context.Context, key string) (objects []*model.Object, err error) {
-	return s.db.FindModelsByKey(ctx, key)
+func (s *s3Database) DeleteSpecifiedData(ctx context.Context, engine string, name []string) error {
+	return s.db.Delete(ctx, engine, name)
 }
 
 func (s *s3Database) DelS3Key(ctx context.Context, engine string, keys ...string) error {
diff --git a/pkg/common/storage/database/conversation.go b/pkg/common/storage/database/conversation.go
index 30ca01ee71..1fb53cfed2 100644
--- a/pkg/common/storage/database/conversation.go
+++ b/pkg/common/storage/database/conversation.go
@@ -42,4 +42,5 @@ type Conversation interface {
 	GetConversationIDsNeedDestruct(ctx context.Context) ([]*model.Conversation, error)
 	GetConversationNotReceiveMessageUserIDs(ctx context.Context, conversationID string) ([]string, error)
 	FindConversationUserVersion(ctx context.Context, userID string, version uint, limit int) (*model.VersionLog, error)
+	FindRandConversation(ctx context.Context, ts int64, limit int) ([]*model.Conversation, error)
 }
diff --git a/pkg/common/storage/database/mgo/conversation.go b/pkg/common/storage/database/mgo/conversation.go
index 10e223c893..851ec99c40 100644
--- a/pkg/common/storage/database/mgo/conversation.go
+++ b/pkg/common/storage/database/mgo/conversation.go
@@ -228,3 +228,35 @@ func (c *ConversationMgo) GetConversationNotReceiveMessageUserIDs(ctx context.Co
 func (c *ConversationMgo) FindConversationUserVersion(ctx context.Context, userID string, version uint, limit int) (*model.VersionLog, error) {
 	return c.version.FindChangeLog(ctx, userID, version, limit)
 }
+
+func (c *ConversationMgo) FindRandConversation(ctx context.Context, ts int64, limit int) ([]*model.Conversation, error) {
+	pipeline := []bson.M{
+		{
+			"$match": bson.M{
+				"is_msg_destruct":   true,
+				"msg_destruct_time": bson.M{"$ne": 0},
+			},
+		},
+		{
+			"$addFields": bson.M{
+				"next_msg_destruct_timestamp": bson.M{
+					"$add": []any{
+						bson.M{
+							"$toLong": "$latest_msg_destruct_time",
+						}, "$msg_destruct_time"},
+				},
+			},
+		},
+		{
+			"$match": bson.M{
+				"next_msg_destruct_timestamp": bson.M{"$lt": ts},
+			},
+		},
+		{
+			"$sample": bson.M{
+				"size": limit,
+			},
+		},
+	}
+	return mongoutil.Aggregate[*model.Conversation](ctx, c.coll, pipeline)
+}
diff --git a/pkg/common/storage/database/mgo/msg.go b/pkg/common/storage/database/mgo/msg.go
index fc1fe47eab..f371766958 100644
--- a/pkg/common/storage/database/mgo/msg.go
+++ b/pkg/common/storage/database/mgo/msg.go
@@ -1227,8 +1227,7 @@ func (m *MsgMgo) ConvertMsgsDocLen(ctx context.Context, conversationIDs []string
 	}
 }
 
-func (m *MsgMgo) GetDocIDs(ctx context.Context) ([]string, error) {
-	limit := 5000
+func (m *MsgMgo) GetRandDocIDs(ctx context.Context, limit int) ([]string, error) {
 	var skip int
 	var docIDs []string
 	var offset int
@@ -1267,15 +1266,18 @@ func (m *MsgMgo) GetDocIDs(ctx context.Context) ([]string, error) {
 	return docIDs, errs.Wrap(err)
 }
 
-func (m *MsgMgo) GetBeforeMsg(ctx context.Context, ts int64, docIDs []string, limit int) ([]*model.MsgDocModel, error) {
+func (m *MsgMgo) GetRandBeforeMsg(ctx context.Context, ts int64, limit int) ([]*model.MsgDocModel, error) {
 	return mongoutil.Aggregate[*model.MsgDocModel](ctx, m.coll, []bson.M{
 		{
 			"$match": bson.M{
-				"doc_id": bson.M{
-					"$in": docIDs,
-				},
-				"msgs.msg.send_time": bson.M{
-					"$lt": ts,
+				"msgs": bson.M{
+					"$not": bson.M{
+						"$elemMatch": bson.M{
+							"msg.send_time": bson.M{
+								"$gt": ts,
+							},
+						},
+					},
 				},
 			},
 		},
@@ -1288,7 +1290,9 @@ func (m *MsgMgo) GetBeforeMsg(ctx context.Context, ts int64, docIDs []string, li
 			},
 		},
 		{
-			"$limit": limit,
+			"$sample": bson.M{
+				"size": limit,
+			},
 		},
 	})
 }
@@ -1305,53 +1309,58 @@ func (m *MsgMgo) DeleteMsgByIndex(ctx context.Context, docID string, index []int
 	return mongoutil.UpdateOne(ctx, m.coll, bson.M{"doc_id": docID}, bson.M{"$set": set}, true)
 }
 
-//func (m *MsgMgo) ClearMsg(ctx context.Context, t time.Time) (int64, error) {
-//	ts := t.UnixMilli()
-//	var count int64
-//	for {
-//		msgs, err := m.GetBeforeMsg(ctx, ts, 100)
-//		if err != nil {
-//			return count, err
-//		}
-//		if len(msgs) == 0 {
-//			return count, nil
-//		}
-//		for _, msg := range msgs {
-//			num, err := m.deleteOneMsg(ctx, ts, msg)
-//			count += num
-//			if err != nil {
-//				return count, err
-//			}
-//		}
-//	}
-//}
-
 func (m *MsgMgo) DeleteDoc(ctx context.Context, docID string) error {
 	return mongoutil.DeleteOne(ctx, m.coll, bson.M{"doc_id": docID})
 }
 
-//func (m *MsgMgo) DeleteDocMsg(ctx context.Context, ts int64, doc *relation.MsgDocModel) (int64, error) {
-//	var notNull int
-//	index := make([]int, 0, len(doc.Msg))
-//	for i, message := range doc.Msg {
-//		if message.Msg != nil {
-//			notNull++
-//			if message.Msg.SendTime < ts {
-//				index = append(index, i)
-//			}
-//		}
-//	}
-//	if len(index) == 0 {
-//		return 0, errs.New("no msg to delete").WrapMsg("deleteOneMsg", "docID", doc.DocID)
-//	}
-//	if len(index) == notNull {
-//		if err := m.DeleteDoc(ctx, doc.DocID); err != nil {
-//			return 0, err
-//		}
-//	} else {
-//		if err := m.setNullMsg(ctx, doc.DocID, index); err != nil {
-//			return 0, err
-//		}
-//	}
-//	return int64(len(index)), nil
-//}
+func (m *MsgMgo) GetLastMessageSeqByTime(ctx context.Context, conversationID string, time int64) (int64, error) {
+	pipeline := []bson.M{
+		{
+			"$match": bson.M{
+				"doc_id": bson.M{
+					"$regex": fmt.Sprintf("^%s", conversationID),
+				},
+			},
+		},
+		{
+			"$match": bson.M{
+				"msgs.msg.send_time": bson.M{
+					"$lte": time,
+				},
+			},
+		},
+		{
+			"$sort": bson.M{
+				"_id": -1,
+			},
+		},
+		{
+			"$limit": 1,
+		},
+		{
+			"$project": bson.M{
+				"_id":                0,
+				"doc_id":             1,
+				"msgs.msg.send_time": 1,
+				"msgs.msg.seq":       1,
+			},
+		},
+	}
+	res, err := mongoutil.Aggregate[*model.MsgDocModel](ctx, m.coll, pipeline)
+	if err != nil {
+		return 0, err
+	}
+	if len(res) == 0 {
+		return 0, nil
+	}
+	var seq int64
+	for _, v := range res[0].Msg {
+		if v.Msg == nil {
+			continue
+		}
+		if v.Msg.SendTime <= time {
+			seq = v.Msg.Seq
+		}
+	}
+	return seq, nil
+}
diff --git a/pkg/common/storage/database/mgo/msg_test.go b/pkg/common/storage/database/mgo/msg_test.go
index 5aed4dc511..992090552e 100644
--- a/pkg/common/storage/database/mgo/msg_test.go
+++ b/pkg/common/storage/database/mgo/msg_test.go
@@ -3,12 +3,11 @@ package mgo
 import (
 	"context"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
-	"github.com/openimsdk/protocol/msg"
-	"github.com/openimsdk/protocol/sdkws"
 	"github.com/openimsdk/tools/db/mongoutil"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
+	"math"
 	"math/rand"
 	"strconv"
 	"testing"
@@ -16,35 +15,45 @@ import (
 )
 
 func TestName1(t *testing.T) {
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*300)
-	defer cancel()
-	cli := Result(mongo.Connect(ctx, options.Client().ApplyURI("mongodb://openIM:openIM123@172.16.8.48:37017/openim_v3?maxPoolSize=100").SetConnectTimeout(5*time.Second)))
-
-	v := &MsgMgo{
-		coll: cli.Database("openim_v3").Collection("msg3"),
-	}
-
-	req := &msg.SearchMessageReq{
-		//RecvID: "3187706596",
-		//SendID:      "7009965934",
-		ContentType: 101,
-		//SendTime:    "2024-05-06",
-		//SessionType: 3,
-		Pagination: &sdkws.RequestPagination{
-			PageNumber: 1,
-			ShowNumber: 10,
-		},
-	}
-	total, res, err := v.SearchMessage(ctx, req)
-	if err != nil {
-		panic(err)
-	}
-
-	for i, re := range res {
-		t.Logf("%d => %d | %+v", i+1, re.Msg.Seq, re.Msg.Content)
-	}
-
-	t.Log(total)
+	//ctx, cancel := context.WithTimeout(context.Background(), time.Second*300)
+	//defer cancel()
+	//cli := Result(mongo.Connect(ctx, options.Client().ApplyURI("mongodb://openIM:openIM123@172.16.8.66:37017/openim_v3?maxPoolSize=100").SetConnectTimeout(5*time.Second)))
+	//
+	//v := &MsgMgo{
+	//	coll: cli.Database("openim_v3").Collection("msg3"),
+	//}
+	//
+	//req := &msg.SearchMessageReq{
+	//	//RecvID: "3187706596",
+	//	//SendID:      "7009965934",
+	//	ContentType: 101,
+	//	//SendTime:    "2024-05-06",
+	//	//SessionType: 3,
+	//	Pagination: &sdkws.RequestPagination{
+	//		PageNumber: 1,
+	//		ShowNumber: 10,
+	//	},
+	//}
+	//total, res, err := v.SearchMessage(ctx, req)
+	//if err != nil {
+	//	panic(err)
+	//}
+	//
+	//for i, re := range res {
+	//	t.Logf("%d => %d | %+v", i+1, re.Msg.Seq, re.Msg.Content)
+	//}
+	//
+	//t.Log(total)
+	//
+	//msg, err := NewMsgMongo(cli.Database("openim_v3"))
+	//if err != nil {
+	//	panic(err)
+	//}
+	//res, err := msg.GetBeforeMsg(ctx, time.Now().UnixMilli(), []string{"1:0"}, 1000)
+	//if err != nil {
+	//	panic(err)
+	//}
+	//t.Log(len(res))
 }
 
 func TestName10(t *testing.T) {
@@ -73,3 +82,33 @@ func TestName10(t *testing.T) {
 	}
 
 }
+
+func TestName3(t *testing.T) {
+	t.Log(uint64(math.MaxUint64))
+	t.Log(int64(math.MaxInt64))
+
+	t.Log(int64(math.MinInt64))
+}
+
+func TestName4(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*300)
+	defer cancel()
+	cli := Result(mongo.Connect(ctx, options.Client().ApplyURI("mongodb://openIM:openIM123@172.16.8.66:37017/openim_v3?maxPoolSize=100").SetConnectTimeout(5*time.Second)))
+
+	msg, err := NewMsgMongo(cli.Database("openim_v3"))
+	if err != nil {
+		panic(err)
+	}
+	ts := time.Now().Add(-time.Hour * 24 * 5).UnixMilli()
+	t.Log(ts)
+	res, err := msg.GetLastMessageSeqByTime(ctx, "sg_1523453548", ts)
+	if err != nil {
+		panic(err)
+	}
+	t.Log(res)
+}
+
+func TestName5(t *testing.T) {
+	var v time.Time
+	t.Log(v.UnixMilli())
+}
diff --git a/pkg/common/storage/database/mgo/object.go b/pkg/common/storage/database/mgo/object.go
index 5bc329d33b..624eb84a0d 100644
--- a/pkg/common/storage/database/mgo/object.go
+++ b/pkg/common/storage/database/mgo/object.go
@@ -22,7 +22,6 @@ import (
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
 
 	"github.com/openimsdk/tools/db/mongoutil"
-	"github.com/openimsdk/tools/db/pagination"
 	"github.com/openimsdk/tools/errs"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
@@ -91,21 +90,25 @@ func (o *S3Mongo) Take(ctx context.Context, engine string, name string) (*model.
 	return mongoutil.FindOne[*model.Object](ctx, o.coll, bson.M{"name": name, "engine": engine})
 }
 
-func (o *S3Mongo) Delete(ctx context.Context, engine string, name string) error {
-	return mongoutil.DeleteOne(ctx, o.coll, bson.M{"name": name, "engine": engine})
+func (o *S3Mongo) Delete(ctx context.Context, engine string, name []string) error {
+	if len(name) == 0 {
+		return nil
+	}
+	return mongoutil.DeleteOne(ctx, o.coll, bson.M{"engine": engine, "name": bson.M{"$in": name}})
 }
 
-// Find Expires object
-func (o *S3Mongo) FindNeedDeleteObjectByDB(ctx context.Context, duration time.Time, needDelType []string, pagination pagination.Pagination) (total int64, objects []*model.Object, err error) {
-	return mongoutil.FindPage[*model.Object](ctx, o.coll, bson.M{
-		"create_time": bson.M{"$lt": duration},
+func (o *S3Mongo) FindExpirationObject(ctx context.Context, engine string, expiration time.Time, needDelType []string, count int64) ([]*model.Object, error) {
+	opt := options.Find()
+	if count > 0 {
+		opt.SetLimit(count)
+	}
+	return mongoutil.Find[*model.Object](ctx, o.coll, bson.M{
+		"engine":      engine,
+		"create_time": bson.M{"$lt": expiration},
 		"group":       bson.M{"$in": needDelType},
-	}, pagination)
+	}, opt)
 }
 
-// Find object by key
-func (o *S3Mongo) FindModelsByKey(ctx context.Context, key string) (objects []*model.Object, err error) {
-	return mongoutil.Find[*model.Object](ctx, o.coll, bson.M{
-		"key": key,
-	})
+func (o *S3Mongo) GetKeyCount(ctx context.Context, engine string, key string) (int64, error) {
+	return mongoutil.Count(ctx, o.coll, bson.M{"engine": engine, "key": key})
 }
diff --git a/pkg/common/storage/database/msg.go b/pkg/common/storage/database/msg.go
index 23a99f5b96..abb2a44c2f 100644
--- a/pkg/common/storage/database/msg.go
+++ b/pkg/common/storage/database/msg.go
@@ -45,7 +45,9 @@ type Msg interface {
 
 	DeleteDoc(ctx context.Context, docID string) error
 	DeleteMsgByIndex(ctx context.Context, docID string, index []int) error
-	GetBeforeMsg(ctx context.Context, ts int64, docIDs []string, limit int) ([]*model.MsgDocModel, error)
+	GetRandBeforeMsg(ctx context.Context, ts int64, limit int) ([]*model.MsgDocModel, error)
 
-	GetDocIDs(ctx context.Context) ([]string, error)
+	GetRandDocIDs(ctx context.Context, limit int) ([]string, error)
+
+	GetLastMessageSeqByTime(ctx context.Context, conversationID string, time int64) (int64, error)
 }
diff --git a/pkg/common/storage/database/object.go b/pkg/common/storage/database/object.go
index c741e39a60..5541a159b4 100644
--- a/pkg/common/storage/database/object.go
+++ b/pkg/common/storage/database/object.go
@@ -19,13 +19,12 @@ import (
 	"time"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
-	"github.com/openimsdk/tools/db/pagination"
 )
 
 type ObjectInfo interface {
 	SetObject(ctx context.Context, obj *model.Object) error
 	Take(ctx context.Context, engine string, name string) (*model.Object, error)
-	Delete(ctx context.Context, engine string, name string) error
-	FindNeedDeleteObjectByDB(ctx context.Context, duration time.Time, needDelType []string, pagination pagination.Pagination) (total int64, objects []*model.Object, err error)
-	FindModelsByKey(ctx context.Context, key string) (objects []*model.Object, err error)
+	Delete(ctx context.Context, engine string, name []string) error
+	FindExpirationObject(ctx context.Context, engine string, expiration time.Time, needDelType []string, count int64) ([]*model.Object, error)
+	GetKeyCount(ctx context.Context, engine string, key string) (int64, error)
 }