diff --git a/datanode/partition.go b/datanode/partition.go
index a68b7aae8..1cdd4f25f 100644
--- a/datanode/partition.go
+++ b/datanode/partition.go
@@ -1503,7 +1503,7 @@ func (dp *DataPartition) setRestoreReplicaFinish() bool {
 }
 
 func (dp *DataPartition) EvictExtentCache() {
-	err := dp.extentStore.DoExtentCacheTtl(dp.dataNode.ExtentCacheTtlByHour)
+	err := dp.extentStore.DoExtentCacheTtl(dp.dataNode.ExtentCacheTtlByMin)
 	if err != nil {
 		log.LogWarnf("[EvictExtentCache] DoExtentCacheTtl err: %s", err.Error())
 	}
diff --git a/datanode/server.go b/datanode/server.go
index 551317533..18db70b03 100644
--- a/datanode/server.go
+++ b/datanode/server.go
@@ -71,7 +71,7 @@ const (
 	DefaultDiskUnavailableErrorCount          = 5
 	DefaultDiskUnavailablePartitionErrorCount = 3
 	DefaultGOGCValue                          = 100
-	DefaultExtentCacheTtlByHour               = 1
+	DefaultExtentCacheTtlByMin                = 30
 )
 
 const (
@@ -137,7 +137,7 @@ const (
 	// disk status becomes unavailable if disk error partition count reaches this value
 	ConfigKeyDiskUnavailablePartitionErrorCount = "diskUnavailablePartitionErrorCount"
 	ConfigKeyCacheCap                           = "cacheCap"
-	ConfigExtentCacheTtlByHour                  = "extentCacheTtlByHour"
+	ConfigExtentCacheTtlByMin                   = "extentCacheTtlByMin"
 
 	// storage device media type, for hybrid cloud, in string: SDD or HDD
 	ConfigMediaType = "mediaType"
@@ -223,7 +223,7 @@ type DataNode struct {
 	VolsForbidWriteOpOfProtoVer0       map[string]struct{} // whether forbid by volume granularity,
 	DirectReadVols                     map[string]struct{}
 	IgnoreTinyRecoverVols              map[string]struct{}
-	ExtentCacheTtlByHour               int
+	ExtentCacheTtlByMin                int
 }
 
 type verOp2Phase struct {
@@ -478,7 +478,7 @@ func (s *DataNode) parseConfig(cfg *config.Config) (err error) {
 	}
 	s.mediaType = mediaType
 
-	s.ExtentCacheTtlByHour = cfg.GetIntWithDefault(ConfigExtentCacheTtlByHour, DefaultExtentCacheTtlByHour)
+	s.ExtentCacheTtlByMin = cfg.GetIntWithDefault(ConfigExtentCacheTtlByMin, DefaultExtentCacheTtlByMin)
 
 	log.LogDebugf("action[parseConfig] load masterAddrs(%v).", MasterClient.Nodes())
 	log.LogDebugf("action[parseConfig] load port(%v).", s.port)
diff --git a/datanode/space_manager.go b/datanode/space_manager.go
index 69a19ac4b..5e1b4f03b 100644
--- a/datanode/space_manager.go
+++ b/datanode/space_manager.go
@@ -969,7 +969,11 @@ func (manager *SpaceManager) getPartitions() []*DataPartition {
 }
 
 func (manager *SpaceManager) StartEvictExtentCache() {
-	ticker := time.NewTicker(time.Hour)
+	interval := manager.dataNode.ExtentCacheTtlByMin / 2
+	if interval <= 0 {
+		interval = 1
+	}
+	ticker := time.NewTicker(time.Minute * time.Duration(interval))
 	defer ticker.Stop()
 
 	for {
diff --git a/datanode/storage/extent_cache.go b/datanode/storage/extent_cache.go
index 50ab0dbff..2ffd4d87f 100644
--- a/datanode/storage/extent_cache.go
+++ b/datanode/storage/extent_cache.go
@@ -224,7 +224,7 @@ func (cache *ExtentCache) Flush() {
 }
 
 func (cache *ExtentCache) EvictTTL(ttl int) error {
-	cmpTime := timeutil.GetCurrentTimeUnix() - int64(ttl)*int64(time.Hour)
+	cmpTime := timeutil.GetCurrentTimeUnix() - int64(ttl)*int64(time.Minute)
 	if cache.capacity <= 0 || cmpTime <= 0 {
 		return nil
 	}