diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 9faf903c3a355de2875d55b00fca835e5ece2bbd..e27ac7f5d3ae644c36610be52fac964f36ca5dcf 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -303,7 +303,7 @@ void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 
 #define TSDB_MIN_DAYS_PER_FILE          1
 #define TSDB_MAX_DAYS_PER_FILE          3650 
-#define TSDB_DEFAULT_DAYS_PER_FILE      5 
+#define TSDB_DEFAULT_DAYS_PER_FILE      2 
 
 #define TSDB_MIN_KEEP                   1        // data in db to be reserved.
 #define TSDB_MAX_KEEP                   365000   // data in db to be reserved.