diff --git a/pkg/meta/redis.go b/pkg/meta/redis.go
index 29ee6b2b9c76..bbdbb506ff82 100644
--- a/pkg/meta/redis.go
+++ b/pkg/meta/redis.go
@@ -832,7 +832,7 @@ func (m *redisMeta) Truncate(ctx Context, inode Ino, flags uint8, length uint64,
 		if left > right {
 			right, left = left, right
 		}
-		if (right-left)/ChunkSize >= 100 {
+		if (right-left)/ChunkSize >= 10000 {
 			// super large
 			var cursor uint64
 			var keys []string