diff --git a/internal/task/agent_check_cache.go b/internal/task/agent_check_cache.go
index 2768acb..a80e096 100644
--- a/internal/task/agent_check_cache.go
+++ b/internal/task/agent_check_cache.go
@@ -78,7 +78,7 @@ func (t *AgentCheckCacheTask) checkOneAgentCache(entry AgentCheckCacheTaskEntry,
 	var isComplete bool
 	var caches []model.Cache
 
-	err := execCtx.MyDB.DoTx(sql.LevelSerializable, func(tx *sqlx.Tx) error {
+	err := execCtx.DB.DoTx(sql.LevelSerializable, func(tx *sqlx.Tx) error {
 		// TODO unavailable的节点需不需要发送任务？
 
 		if entry.FileHashes == nil {
diff --git a/internal/task/check_rep_count.go b/internal/task/check_rep_count.go
index 4c18683..eaa36ac 100644
--- a/internal/task/check_rep_count.go
+++ b/internal/task/check_rep_count.go
@@ -7,8 +7,8 @@ import (
 
 	"github.com/jmoiron/sqlx"
 	"github.com/samber/lo"
+	"gitlink.org.cn/cloudream/common/consts"
 	"gitlink.org.cn/cloudream/scanner/internal/config"
-	"gitlink.org.cn/cloudream/utils/consts"
 	log "gitlink.org.cn/cloudream/utils/logger"
 	mymath "gitlink.org.cn/cloudream/utils/math"
 	mysort "gitlink.org.cn/cloudream/utils/sort"
@@ -32,7 +32,7 @@ func (t *CheckRepCountTask) TryMerge(other Task) bool {
 }
 
 func (t *CheckRepCountTask) Execute(execCtx *ExecuteContext, myOpts ExecuteOption) {
-	var updatedNodeAndHashes map[int][]string
+	updatedNodeAndHashes := make(map[int][]string)
 
 	for _, fileHash := range t.FileHashes {
 		updatedNodeIDs, err := t.checkOneRepCount(fileHash, execCtx)
@@ -57,7 +57,7 @@ func (t *CheckRepCountTask) Execute(execCtx *ExecuteContext, myOpts ExecuteOptio
 
 func (t *CheckRepCountTask) checkOneRepCount(fileHash string, execCtx *ExecuteContext) ([]int, error) {
 	var updatedNodeIDs []int
-	err := execCtx.MyDB.DoTx(sql.LevelSerializable, func(tx *sqlx.Tx) error {
+	err := execCtx.DB.DoTx(sql.LevelSerializable, func(tx *sqlx.Tx) error {
 		repMaxCnt, err := mysql.ObjectRep.GetFileMaxRepCount(tx, fileHash)
 		if err != nil {
 			return fmt.Errorf("get file max rep count failed, err: %w", err)
diff --git a/internal/task/executor.go b/internal/task/executor.go
index aa93e23..35f867f 100644
--- a/internal/task/executor.go
+++ b/internal/task/executor.go
@@ -15,7 +15,7 @@ type ExecuteOption struct {
 }
 type ExecuteContext struct {
 	Executor *Executor
-	MyDB     *mydb.DB
+	DB       *mydb.DB
 }
 type postedTask struct {
 	Task   Task
diff --git a/internal/task/update_cache.go b/internal/task/update_cache.go
new file mode 100644
index 0000000..e54a0ea
--- /dev/null
+++ b/internal/task/update_cache.go
@@ -0,0 +1,57 @@
+package task
+
+import (
+	tskcst "gitlink.org.cn/cloudream/common/consts/task"
+	mysql "gitlink.org.cn/cloudream/db/sql"
+	"gitlink.org.cn/cloudream/utils/logger"
+)
+
+type UpdateCacheTaskEntry struct {
+	FileHash  string
+	NodeID    int
+	Operation string
+}
+
+func NewUpdateCacheTaskEntry(fileHash string, nodeID int, op string) UpdateCacheTaskEntry {
+	return UpdateCacheTaskEntry{
+		FileHash:  fileHash,
+		NodeID:    nodeID,
+		Operation: op,
+	}
+}
+
+type UpdateCacheTask struct {
+	Entries []UpdateCacheTaskEntry
+}
+
+func NewUpdateCacheTask(entries []UpdateCacheTaskEntry) UpdateCacheTask {
+	return UpdateCacheTask{
+		Entries: entries,
+	}
+}
+
+func (t *UpdateCacheTask) TryMerge(other Task) bool {
+	chkTask, ok := other.(*UpdateCacheTask)
+	if !ok {
+		return false
+	}
+
+	// TODO 可以考虑合并同FileHash和NodeID的记录
+	t.Entries = append(t.Entries, chkTask.Entries...)
+	return true
+}
+
+func (t *UpdateCacheTask) Execute(execCtx *ExecuteContext, execOpts ExecuteOption) {
+	for _, entry := range t.Entries {
+		switch entry.Operation {
+		case tskcst.UPDATE_CACHE_OP_UNTEMP:
+			err := mysql.Cache.DeleteTemp(execCtx.DB.SQLCtx(), entry.FileHash, entry.NodeID)
+
+			if err != nil {
+				logger.WithField("FileHash", entry.FileHash).
+					WithField("NodeID", entry.NodeID).
+					Warnf("delete temp cache failed, err: %s", err.Error())
+			}
+		}
+	}
+}