feat: implement true BatchGetIncrGroupMember RPC method and corresponding dependency methods.

internal/api/group.go

@@ -19,8 +19,6 @@ import (
 	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
 	"github.com/openimsdk/protocol/group"
 	"github.com/openimsdk/tools/a2r"
-	"github.com/openimsdk/tools/apiresp"
-	"github.com/openimsdk/tools/log"
 )
 
 type GroupApi rpcclient.Group
@@ -148,45 +146,82 @@ func (o *GroupApi) GetIncrementalGroupMember(c *gin.Context) {
 }
 
 func (o *GroupApi) GetIncrementalGroupMemberBatch(c *gin.Context) {
-	type BatchIncrementalReq struct {
-		UserID string                                `json:"user_id"`
-		List   []*group.GetIncrementalGroupMemberReq `json:"list"`
-	}
-	type BatchIncrementalResp struct {
-		List map[string]*group.GetIncrementalGroupMemberResp `json:"list"`
-	}
-	req, err := a2r.ParseRequestNotCheck[BatchIncrementalReq](c)
-	if err != nil {
-		apiresp.GinError(c, err)
-		return
-	}
-	resp := &BatchIncrementalResp{
-		List: make(map[string]*group.GetIncrementalGroupMemberResp),
-	}
-	var (
-		changeCount int
-	)
-	for _, req := range req.List {
-		if _, ok := resp.List[req.GroupID]; ok {
-			continue
-		}
-		res, err := o.Client.GetIncrementalGroupMember(c, req)
-		if err != nil {
-			if len(resp.List) == 0 {
-				apiresp.GinError(c, err)
-			} else {
-				log.ZError(c, "group incr sync versopn", err, "groupID", req.GroupID, "success", len(resp.List))
-				apiresp.GinSuccess(c, resp)
-			}
-			return
-		}
-		resp.List[req.GroupID] = res
-		changeCount += len(res.Insert) + len(res.Delete) + len(res.Update)
-		if changeCount >= 200 {
-			break
-		}
-	}
-	apiresp.GinSuccess(c, resp)
+	a2r.Call(group.GroupClient.BatchGetIncrementalGroupMember, o.Client, c)
+
+	// // OLd. Need Deprecated
+	// // type BatchIncrementalReq struct {
+	// // 	UserID string                                `json:"user_id"`
+	// // 	List   []*group.GetIncrementalGroupMemberReq `json:"list"`
+	// // }
+	// // type BatchIncrementalResp struct {
+	// // 	List map[string]*group.GetIncrementalGroupMemberResp `json:"list"`
+	// // }
+	// // req, err := a2r.ParseRequestNotCheck[BatchIncrementalReq](c)
+	// // if err != nil {
+	// // 	apiresp.GinError(c, err)
+	// // 	return
+	// // }
+	// // resp := &BatchIncrementalResp{
+	// // 	List: make(map[string]*group.GetIncrementalGroupMemberResp),
+	// // }
+
+	// //**** Start ****//
+	// var (
+	// 	changeCount int
+	// )
+	// req, err := a2r.ParseRequestNotCheck[group.BatchGetIncrementalGroupMemberReq](c)
+	// if err != nil {
+	// 	apiresp.GinError(c, err)
+	// 	return
+	// }
+	// resp, err := o.Client.BatchGetIncrementalGroupMember(c, req)
+	// if err != nil {
+	// 	if len(resp.RespList) == 0 {
+	// 		apiresp.GinError(c, err)
+	// 	} else {
+	// 		log.ZError(c, "group incr sync version", err)
+	// 		apiresp.GinSuccess(c, resp)
+	// 	}
+	// }
+
+	// res := make(map[string]*group.GetIncrementalGroupMemberResp)
+	// for k, val := range resp.RespList {
+	// 	changeCount += len(val.Insert) + len(val.Delete) + len(val.Update)
+	// 	if changeCount >= 200 {
+	// 		break
+	// 	}
+	// 	res[k] = val
+	// }
+	// resp = &group.BatchGetIncrementalGroupMemberResp{
+	// 	RespList: res,
+	// }
+
+	// // OLd. Need Deprecated
+	// // for _, req := range req.List {
+	// // 	if _, ok := resp.List[req.GroupID]; ok {
+	// // 		continue
+	// // 	}
+	// // 	res, err := o.Client.GetIncrementalGroupMember(c, req)
+	// // 	if err != nil {
+	// // 		if len(resp.List) == 0 {
+	// // 			apiresp.GinError(c, err)
+	// // 		} else {
+	// // 			log.ZError(c, "group incr sync version", err, "groupID", req.GroupID, "success", len(resp.List))
+	// // 			apiresp.GinSuccess(c, resp)
+	// // 		}
+	// // 		return
+	// // 	}
+	// // 	resp.List[req.GroupID] = res
+	// // 	changeCount += len(res.Insert) + len(res.Delete) + len(res.Update)
+	// // 	if changeCount >= 200 {
+	// // 		break
+	// // 	}
+	// // }
+
+	// apiresp.GinSuccess(c, resp)
+
+	//**** End ****//
+
 }
 
 func (o *GroupApi) GetFullGroupMemberUserIDs(c *gin.Context) {

internal/rpc/group/sync.go

@@ -2,6 +2,8 @@ package group
 
 import (
 	"context"
+	"slices"
+
 	"github.com/openimsdk/open-im-server/v3/internal/rpc/incrversion"
 	"github.com/openimsdk/open-im-server/v3/pkg/authverify"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/servererrs"
@@ -10,7 +12,7 @@ import (
 	"github.com/openimsdk/protocol/constant"
 	pbgroup "github.com/openimsdk/protocol/group"
 	"github.com/openimsdk/protocol/sdkws"
-	"slices"
+	"github.com/openimsdk/tools/log"
 )
 
 func (s *groupServer) GetFullGroupMemberUserIDs(ctx context.Context, req *pbgroup.GetFullGroupMemberUserIDsReq) (*pbgroup.GetFullGroupMemberUserIDsResp, error) {
@@ -91,7 +93,6 @@ func (s *groupServer) GetIncrementalGroupMember(ctx context.Context, req *pbgrou
 		Find: func(ctx context.Context, ids []string) ([]*sdkws.GroupMemberFullInfo, error) {
 			return s.getGroupMembersInfo(ctx, req.GroupID, ids)
 		},
-		ID: func(elem *sdkws.GroupMemberFullInfo) string { return elem.UserID },
 		Resp: func(version *model.VersionLog, delIDs []string, insertList, updateList []*sdkws.GroupMemberFullInfo, full bool) *pbgroup.GetIncrementalGroupMemberResp {
 			return &pbgroup.GetIncrementalGroupMemberResp{
 				VersionID: version.ID.Hex(),
@@ -121,6 +122,137 @@ func (s *groupServer) GetIncrementalGroupMember(ctx context.Context, req *pbgrou
 	return resp, nil
 }
 
+func (s *groupServer) BatchGetIncrementalGroupMember(ctx context.Context, req *pbgroup.BatchGetIncrementalGroupMemberReq) (resp *pbgroup.BatchGetIncrementalGroupMemberResp, err error) {
+	type VersionInfo struct {
+		GroupID       string
+		VersionID     string
+		VersionNumber uint64
+	}
+
+	var groupIDs []string
+	groupVersionMap := make(map[string]*VersionInfo)
+	groupsMap := make(map[string]*model.Group)
+
+	var targetKeys, versionIDs []string
+	var versionNumbers []uint64
+
+	// var requestBodyLen int
+
+	for _, group := range req.ReqList {
+		groupVersionMap[group.GroupID] = &VersionInfo{
+			GroupID:       group.GroupID,
+			VersionID:     group.VersionID,
+			VersionNumber: group.Version,
+		}
+
+		groupIDs = append(groupIDs, group.GroupID)
+	}
+
+	groups, err := s.db.FindGroup(ctx, groupIDs)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, group := range groups {
+		if group.Status == constant.GroupStatusDismissed {
+			err = servererrs.ErrDismissedAlready.Wrap()
+			log.ZError(ctx, "This group is Dismissed Already", err, "group is", group.GroupID)
+			delete(groupVersionMap, group.GroupID)
+		} else {
+			groupsMap[group.GroupID] = group
+			// truegroupIDs = append(truegroupIDs, group.GroupID)
+		}
+	}
+	for key, val := range groupVersionMap {
+		targetKeys = append(targetKeys, key)
+		versionIDs = append(versionIDs, val.VersionID)
+		versionNumbers = append(versionNumbers, val.VersionNumber)
+	}
+
+	var hasGroupUpdate map[string]bool
+	opt := incrversion.BatchOption[[]*sdkws.GroupMemberFullInfo, pbgroup.BatchGetIncrementalGroupMemberResp]{
+		Ctx:            ctx,
+		TargetKeys:     targetKeys,
+		VersionIDs:     versionIDs,
+		VersionNumbers: versionNumbers,
+		Versions: func(ctx context.Context, groupIDs []string, versions []uint64, limits []int) (map[string]*model.VersionLog, error) {
+			vLogs, err := s.db.BatchFindMemberIncrVersion(ctx, groupIDs, versions, limits)
+			if err != nil {
+				return nil, err
+			}
+			for key, vlog := range vLogs {
+				vlog.Logs = slices.DeleteFunc(vlog.Logs, func(elem model.VersionLogElem) bool {
+					if elem.EID == "" {
+						vlog.LogLen--
+						hasGroupUpdate[key] = true
+						return true
+					}
+					return false
+				})
+				if vlog.LogLen > 0 {
+					hasGroupUpdate[key] = true
+				}
+			}
+
+			return vLogs, nil
+		},
+		CacheMaxVersions: s.db.BatchFindMaxGroupMemberVersionCache,
+		Find: func(ctx context.Context, groupID string, ids []string) ([]*sdkws.GroupMemberFullInfo, error) {
+			// memberInfoMap := make(map[string][]*sdkws.GroupMemberFullInfo)
+			// for _, groupID := range groupIDs {
+			memberInfo, err := s.getGroupMembersInfo(ctx, groupID, ids)
+			if err != nil {
+				return nil, err
+			}
+			// memberInfoMap:=datautil.SliceToMap(memberInfo, func(e *sdkws.GroupMemberFullInfo) string {
+			// 	return e.GroupID
+			// })
+			// // memberInfoMap[groupID] = memberInfo
+			// // }
+			return memberInfo, err
+		},
+		Resp: func(versions map[string]*model.VersionLog, deleteIdsMap map[string][]string, insertListMap, updateListMap map[string][]*sdkws.GroupMemberFullInfo, fullMap map[string]bool) *pbgroup.BatchGetIncrementalGroupMemberResp {
+			resList := make(map[string]*pbgroup.GetIncrementalGroupMemberResp)
+
+			for key, version := range versions {
+				resList[key] = &pbgroup.GetIncrementalGroupMemberResp{
+					VersionID: version.ID.Hex(),
+					Version:   uint64(version.Version),
+					Full:      fullMap[key],
+					Delete:    deleteIdsMap[key],
+					Insert:    insertListMap[key],
+					Update:    updateListMap[key],
+				}
+			}
+
+			return &pbgroup.BatchGetIncrementalGroupMemberResp{
+				RespList: resList,
+			}
+		},
+	}
+
+	resp, err = opt.Build()
+	if err != nil {
+		return nil, err
+	}
+	for key, val := range resp.RespList {
+		if val.Full || hasGroupUpdate[key] {
+			count, err := s.db.FindGroupMemberNum(ctx, key)
+			if err != nil {
+				return nil, err
+			}
+			owner, err := s.db.TakeGroupOwner(ctx, key)
+			if err != nil {
+				return nil, err
+			}
+			resp.RespList[key].Group = s.groupDB2PB(groupsMap[key], owner.UserID, count)
+		}
+	}
+
+	return resp, nil
+
+}
+
 func (s *groupServer) GetIncrementalJoinGroup(ctx context.Context, req *pbgroup.GetIncrementalJoinGroupReq) (*pbgroup.GetIncrementalJoinGroupResp, error) {
 	if err := authverify.CheckAccessV3(ctx, req.UserID, s.config.Share.IMAdminUserID); err != nil {
 		return nil, err
@@ -133,7 +265,6 @@ func (s *groupServer) GetIncrementalJoinGroup(ctx context.Context, req *pbgroup.
 		Version:         s.db.FindJoinIncrVersion,
 		CacheMaxVersion: s.db.FindMaxJoinGroupVersionCache,
 		Find:            s.getGroupsInfo,
-		ID:              func(elem *sdkws.GroupInfo) string { return elem.GroupID },
 		Resp: func(version *model.VersionLog, delIDs []string, insertList, updateList []*sdkws.GroupInfo, full bool) *pbgroup.GetIncrementalJoinGroupResp {
 			return &pbgroup.GetIncrementalJoinGroupResp{
 				VersionID: version.ID.Hex(),

internal/rpc/incrversion/batch_option.go

@@ -11,16 +11,15 @@ import (
 
 type BatchOption[A, B any] struct {
 	Ctx            context.Context
-	VersionKeys    []string
+	TargetKeys     []string
 	VersionIDs     []string
 	VersionNumbers []uint64
 	//SyncLimit       int
 	Versions         func(ctx context.Context, dIds []string, versions []uint64, limits []int) (map[string]*model.VersionLog, error)
 	CacheMaxVersions func(ctx context.Context, dIds []string) (map[string]*model.VersionLog, error)
-	//SortID          func(ctx context.Context, dId string) ([]string, error)
-	Find func(ctx context.Context, ids []string) ([]A, error)
+	Find             func(ctx context.Context, dId string, ids []string) (A, error)
 	// Resp func(version map[string]*model.VersionLog, deleteIds, insertList, updateList []A, full bool) []*B
-	Resp func(versions map[string]*model.VersionLog, deleteIdsMap map[string][]string, insertListMap, updateListMap map[string][]A, fullMap map[string]bool) *B
+	Resp func(versions map[string]*model.VersionLog, deleteIdsMap map[string][]string, insertListMap, updateListMap map[string]A, fullMap map[string]bool) *B
 }
 
 func (o *BatchOption[A, B]) newError(msg string) error {
@@ -31,8 +30,8 @@ func (o *BatchOption[A, B]) check() error {
 	if o.Ctx == nil {
 		return o.newError("opt ctx is nil")
 	}
-	if len(o.VersionKeys) == 0 {
-		return o.newError("versionKeys is empty")
+	if len(o.TargetKeys) == 0 {
+		return o.newError("targetKeys is empty")
 	}
 	if o.Versions == nil {
 		return o.newError("func versions is nil")
@@ -64,17 +63,17 @@ func (o *BatchOption[A, B]) equalIDs(objIDs []primitive.ObjectID) []bool {
 }
 
 func (o *BatchOption[A, B]) getVersions(tags *[]int) (versions map[string]*model.VersionLog, err error) {
-	valids := o.validVersions()
-
 	var dIDs []string
 	var versionNums []uint64
 	var limits []int
 
+	valids := o.validVersions()
+
 	if o.CacheMaxVersions == nil {
 		for i, valid := range valids {
 			if valid {
 				(*tags)[i] = tagQuery
-				dIDs = append(dIDs, o.VersionKeys[i])
+				dIDs = append(dIDs, o.TargetKeys[i])
 				versionNums = append(versionNums, o.VersionNumbers[i])
 				limits = append(limits, syncLimit)
 
@@ -85,7 +84,7 @@ func (o *BatchOption[A, B]) getVersions(tags *[]int) (versions map[string]*model
 				// versions[o.VersionKeys[i]] = version[o.VersionKeys[i]]
 			} else {
 				(*tags)[i] = tagFull
-				dIDs = append(dIDs, o.VersionKeys[i])
+				dIDs = append(dIDs, o.TargetKeys[i])
 				versionNums = append(versionNums, 0)
 				limits = append(limits, 0)
 
@@ -102,7 +101,7 @@ func (o *BatchOption[A, B]) getVersions(tags *[]int) (versions map[string]*model
 		}
 		return versions, nil
 	} else {
-		caches, err := o.CacheMaxVersions(o.Ctx, o.VersionKeys)
+		caches, err := o.CacheMaxVersions(o.Ctx, o.TargetKeys)
 		if err != nil {
 			return nil, err
 		}
@@ -119,16 +118,16 @@ func (o *BatchOption[A, B]) getVersions(tags *[]int) (versions map[string]*model
 			} else if !equals[i] {
 				(*tags)[i] = tagFull
 				// versions[o.VersionKeys[i]] = caches[o.VersionKeys[i]]
-			} else if o.VersionNumbers[i] == uint64(caches[o.VersionKeys[i]].Version) {
+			} else if o.VersionNumbers[i] == uint64(caches[o.TargetKeys[i]].Version) {
 				(*tags)[i] = tagEqual
 				// versions[o.VersionKeys[i]] = caches[o.VersionKeys[i]]
 			} else {
 				(*tags)[i] = tagQuery
-				dIDs = append(dIDs, o.VersionKeys[i])
+				dIDs = append(dIDs, o.TargetKeys[i])
 				versionNums = append(versionNums, o.VersionNumbers[i])
 				limits = append(limits, syncLimit)
 
-				delete(caches, o.VersionKeys[i])
+				delete(caches, o.TargetKeys[i])
 				// versions[o.VersionKeys[i]] = version[o.VersionKeys[i]]
 			}
 		}
@@ -149,7 +148,7 @@ func (o *BatchOption[A, B]) Build() (*B, error) {
 		return nil, err
 	}
 
-	tags := make([]int, len(o.VersionKeys))
+	tags := make([]int, len(o.TargetKeys))
 	versions, err := o.getVersions(&tags)
 	if err != nil {
 		return nil, err
@@ -159,12 +158,12 @@ func (o *BatchOption[A, B]) Build() (*B, error) {
 	for i, tag := range tags {
 		switch tag {
 		case tagQuery:
-			version := versions[o.VersionKeys[i]]
-			fullMap[o.VersionKeys[i]] = version.ID.Hex() != o.VersionIDs[i] || uint64(version.Version) < o.VersionNumbers[i] || len(version.Logs) != version.LogLen
+			vLog := versions[o.TargetKeys[i]]
+			fullMap[o.TargetKeys[i]] = vLog.ID.Hex() != o.VersionIDs[i] || uint64(vLog.Version) < o.VersionNumbers[i] || len(vLog.Logs) != vLog.LogLen
 		case tagFull:
-			fullMap[o.VersionKeys[i]] = true
+			fullMap[o.TargetKeys[i]] = true
 		case tagEqual:
-			fullMap[o.VersionKeys[i]] = false
+			fullMap[o.TargetKeys[i]] = false
 		default:
 			panic(fmt.Errorf("undefined tag %d", tag))
 		}
@@ -176,38 +175,38 @@ func (o *BatchOption[A, B]) Build() (*B, error) {
 		updateIdsMap = make(map[string][]string)
 	)
 
-	for _, versionKey := range o.VersionKeys {
-		if !fullMap[versionKey] {
-			version := versions[versionKey]
+	for _, targetKey := range o.TargetKeys {
+		if !fullMap[targetKey] {
+			version := versions[targetKey]
 			insertIds, deleteIds, updateIds := version.DeleteAndChangeIDs()
-			insertIdsMap[versionKey] = insertIds
-			deleteIdsMap[versionKey] = deleteIds
-			updateIdsMap[versionKey] = updateIds
+			insertIdsMap[targetKey] = insertIds
+			deleteIdsMap[targetKey] = deleteIds
+			updateIdsMap[targetKey] = updateIds
 		}
 	}
 
 	var (
-		insertListMap = make(map[string][]A)
-		updateListMap = make(map[string][]A)
+		insertListMap = make(map[string]A)
+		updateListMap = make(map[string]A)
 	)
 
-	for versionKey, insertIds := range insertIdsMap {
+	for targetKey, insertIds := range insertIdsMap {
 		if len(insertIds) > 0 {
-			insertList, err := o.Find(o.Ctx, insertIds)
+			insertList, err := o.Find(o.Ctx, targetKey, insertIds)
 			if err != nil {
 				return nil, err
 			}
-			insertListMap[versionKey] = insertList
+			insertListMap[targetKey] = insertList
 		}
 	}
 
-	for versionKey, updateIds := range updateIdsMap {
+	for targetKey, updateIds := range updateIdsMap {
 		if len(updateIds) > 0 {
-			updateList, err := o.Find(o.Ctx, updateIds)
+			updateList, err := o.Find(o.Ctx, targetKey, updateIds)
 			if err != nil {
 				return nil, err
 			}
-			updateListMap[versionKey] = updateList
+			updateListMap[targetKey] = updateList
 		}
 	}
 

pkg/common/storage/cache/redis/group.go

@@ -391,17 +391,17 @@ func (g *GroupCacheRedis) FindMaxGroupMemberVersion(ctx context.Context, groupID
 	})
 }
 
-func (g *GroupCacheRedis) BatchFindMaxGroupMemberVersion(ctx context.Context, groupIDs []string) (versionLogs []*model.VersionLog, err error) {
-	for _, groupID := range groupIDs {
-		verionLog, err := getCache(ctx, g.rcClient, g.getGroupMemberMaxVersionKey(groupID), g.expireTime, func(ctx context.Context) (*model.VersionLog, error) {
-			return g.groupMemberDB.FindMemberIncrVersion(ctx, groupID, 0, 0)
+func (g *GroupCacheRedis) BatchFindMaxGroupMemberVersion(ctx context.Context, groupIDs []string) ([]*model.VersionLog, error) {
+	return batchGetCache2(ctx, g.rcClient, g.expireTime, groupIDs,
+		func(groupID string) string {
+			return g.getGroupMemberMaxVersionKey(groupID)
+		}, func(versionLog *model.VersionLog) string {
+			return versionLog.DID
+		}, func(ctx context.Context, groupIDs []string) ([]*model.VersionLog, error) {
+			versions := make([]uint, len(groupIDs))
+			limits := make([]int, len(groupIDs))
+			return g.groupMemberDB.BatchFindMemberIncrVersion(ctx, groupIDs, versions, limits)
 		})
-		if err != nil {
-			return nil, errs.Wrap(err)
-		}
-		versionLogs = append(versionLogs, verionLog)
-	}
-	return versionLogs, errs.Wrap(err)
 }
 
 func (g *GroupCacheRedis) FindMaxJoinGroupVersion(ctx context.Context, userID string) (*model.VersionLog, error) {

pkg/common/storage/controller/group.go

@@ -16,17 +16,19 @@ package controller
 
 import (
 	"context"
+	"time"
+
 	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
 	redis2 "github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache/redis"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/common"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/database"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
-	"time"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache"
 	"github.com/openimsdk/protocol/constant"
 	"github.com/openimsdk/tools/db/pagination"
 	"github.com/openimsdk/tools/db/tx"
+	"github.com/openimsdk/tools/errs"
 	"github.com/openimsdk/tools/utils/datautil"
 	"github.com/redis/go-redis/v9"
 )
@@ -108,6 +110,7 @@ type GroupDatabase interface {
 	DeleteGroupMemberHash(ctx context.Context, groupIDs []string) error
 
 	FindMemberIncrVersion(ctx context.Context, groupID string, version uint, limit int) (*model.VersionLog, error)
+	BatchFindMemberIncrVersion(ctx context.Context, groupIDs []string, versions []uint64, limits []int) (map[string]*model.VersionLog, error)
 	FindJoinIncrVersion(ctx context.Context, userID string, version uint, limit int) (*model.VersionLog, error)
 	MemberGroupIncrVersion(ctx context.Context, groupID string, userIDs []string, state int32) error
 
@@ -115,6 +118,7 @@ type GroupDatabase interface {
 	//FindSortJoinGroupIDs(ctx context.Context, userID string) ([]string, error)
 
 	FindMaxGroupMemberVersionCache(ctx context.Context, groupID string) (*model.VersionLog, error)
+	BatchFindMaxGroupMemberVersionCache(ctx context.Context, groupIDs []string) (map[string]*model.VersionLog, error)
 	FindMaxJoinGroupVersionCache(ctx context.Context, userID string) (*model.VersionLog, error)
 
 	SearchJoinGroup(ctx context.Context, userID string, keyword string, pagination pagination.Pagination) (int64, []*model.Group, error)
@@ -498,6 +502,24 @@ func (g *groupDatabase) FindMemberIncrVersion(ctx context.Context, groupID strin
 	return g.groupMemberDB.FindMemberIncrVersion(ctx, groupID, version, limit)
 }
 
+func (g *groupDatabase) BatchFindMemberIncrVersion(ctx context.Context, groupIDs []string, versions []uint64, limits []int) (map[string]*model.VersionLog, error) {
+	if len(groupIDs) == 0 {
+		return nil, nil
+	}
+	var uintVersions []uint
+	for _, version := range versions {
+		uintVersions = append(uintVersions, uint(version))
+	}
+	versionLogs, err := g.groupMemberDB.BatchFindMemberIncrVersion(ctx, groupIDs, uintVersions, limits)
+	if err != nil {
+		return nil, errs.Wrap(err)
+	}
+	groupMemberIncrVersionsMap := datautil.SliceToMap(versionLogs, func(e *model.VersionLog) string {
+		return e.DID
+	})
+	return groupMemberIncrVersionsMap, nil
+}
+
 func (g *groupDatabase) FindJoinIncrVersion(ctx context.Context, userID string, version uint, limit int) (*model.VersionLog, error) {
 	return g.groupMemberDB.FindJoinIncrVersion(ctx, userID, version, limit)
 }
@@ -506,6 +528,20 @@ func (g *groupDatabase) FindMaxGroupMemberVersionCache(ctx context.Context, grou
 	return g.cache.FindMaxGroupMemberVersion(ctx, groupID)
 }
 
+func (g *groupDatabase) BatchFindMaxGroupMemberVersionCache(ctx context.Context, groupIDs []string) (map[string]*model.VersionLog, error) {
+	if len(groupIDs) == 0 {
+		return nil, nil
+	}
+	versionLogs, err := g.cache.BatchFindMaxGroupMemberVersion(ctx, groupIDs)
+	if err != nil {
+		return nil, errs.Wrap(err)
+	}
+	maxGroupMemberVersionsMap := datautil.SliceToMap(versionLogs, func(e *model.VersionLog) string {
+		return e.DID
+	})
+	return maxGroupMemberVersionsMap, nil
+}
+
 func (g *groupDatabase) FindMaxJoinGroupVersionCache(ctx context.Context, userID string) (*model.VersionLog, error) {
 	return g.cache.FindMaxJoinGroupVersion(ctx, userID)
 }

pkg/common/storage/database/group_member.go

@@ -41,5 +41,6 @@ type GroupMember interface {
 	JoinGroupIncrVersion(ctx context.Context, userID string, groupIDs []string, state int32) error
 	MemberGroupIncrVersion(ctx context.Context, groupID string, userIDs []string, state int32) error
 	FindMemberIncrVersion(ctx context.Context, groupID string, version uint, limit int) (*model.VersionLog, error)
+	BatchFindMemberIncrVersion(ctx context.Context, groupIDs []string, versions []uint, limits []int) ([]*model.VersionLog, error)
 	FindJoinIncrVersion(ctx context.Context, userID string, version uint, limit int) (*model.VersionLog, error)
 }

pkg/common/storage/database/mgo/group_member.go

@@ -226,6 +226,11 @@ func (g *GroupMemberMgo) FindMemberIncrVersion(ctx context.Context, groupID stri
 	return g.member.FindChangeLog(ctx, groupID, version, limit)
 }
 
+func (g *GroupMemberMgo) BatchFindMemberIncrVersion(ctx context.Context, groupIDs []string, versions []uint, limits []int) ([]*model.VersionLog, error) {
+	log.ZDebug(ctx, "Batch find member incr version", "groupIDs", groupIDs, "versions", versions)
+	return g.member.BatchFindChangeLog(ctx, groupIDs, versions, limits)
+}
+
 func (g *GroupMemberMgo) FindJoinIncrVersion(ctx context.Context, userID string, version uint, limit int) (*model.VersionLog, error) {
 	log.ZDebug(ctx, "find join incr version", "userID", userID, "version", version)
 	return g.join.FindChangeLog(ctx, userID, version, limit)

pkg/common/storage/database/mgo/version_log.go

@@ -3,6 +3,8 @@ package mgo
 import (
 	"context"
 	"errors"
+	"time"
+
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/database"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
 	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/versionctx"
@@ -13,7 +15,6 @@ import (
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
-	"time"
 )
 
 func NewVersionLog(coll *mongo.Collection) (database.VersionLog, error) {
@@ -181,6 +182,26 @@ func (l *VersionLogMgo) FindChangeLog(ctx context.Context, dId string, version u
 	}
 }
 
+func (l *VersionLogMgo) BatchFindChangeLog(ctx context.Context, dIds []string, versions []uint, limits []int) (vLogs []*model.VersionLog, err error) {
+	for i := 0; i < len(dIds); i++ {
+		if vLog, err := l.findChangeLog(ctx, dIds[i], versions[i], limits[i]); err == nil {
+			vLogs = append(vLogs, vLog)
+		} else if !errors.Is(err, mongo.ErrNoDocuments) {
+			log.ZError(ctx, "findChangeLog error:", errs.Wrap(err))
+		}
+		log.ZDebug(ctx, "init doc", "dId", dIds[i])
+		if res, err := l.initDoc(ctx, dIds[i], nil, 0, time.Now()); err == nil {
+			log.ZDebug(ctx, "init doc success", "dId", dIds[i])
+			vLogs = append(vLogs, res)
+		} else if mongo.IsDuplicateKeyError(err) {
+			l.findChangeLog(ctx, dIds[i], versions[i], limits[i])
+		} else {
+			log.ZError(ctx, "init doc error:", errs.Wrap(err))
+		}
+	}
+	return vLogs, errs.Wrap(err)
+}
+
 func (l *VersionLogMgo) findChangeLog(ctx context.Context, dId string, version uint, limit int) (*model.VersionLog, error) {
 	if version == 0 && limit == 0 {
 		return l.findDoc(ctx, dId)

pkg/common/storage/database/version_log.go

@@ -2,8 +2,9 @@ package database
 
 import (
 	"context"
-	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
 	"time"
+
+	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/model"
 )
 
 const (
@@ -14,6 +15,7 @@ const (
 type VersionLog interface {
 	IncrVersion(ctx context.Context, dId string, eIds []string, state int32) error
 	FindChangeLog(ctx context.Context, dId string, version uint, limit int) (*model.VersionLog, error)
+	BatchFindChangeLog(ctx context.Context, dIds []string, versions []uint, limits []int) ([]*model.VersionLog, error)
 	DeleteAfterUnchangedLog(ctx context.Context, deadline time.Time) error
 	Delete(ctx context.Context, dId string) error
 }