diff --git a/weed/storage/needle_map/compact_map.go b/weed/storage/needle_map/compact_map.go
index 3d2047f99..ccce8f108 100644
--- a/weed/storage/needle_map/compact_map.go
+++ b/weed/storage/needle_map/compact_map.go
@@ -8,7 +8,7 @@ import (
 )
 
 const (
-	batch = 100000
+	batch = 10000
 )
 
 type SectionalNeedleId uint32