diff --git a/inc/Maat_command.h b/inc/Maat_command.h
index 1ccefe8..e457646 100644
--- a/inc/Maat_command.h
+++ b/inc/Maat_command.h
@@ -120,7 +120,7 @@ struct Maat_line_t
 {
 	const char* table_name;
 	const char* table_line;
-	int rule_id;		// for MAAT_OP_DEL, only rule_id is necessary.
+	int rule_id;		// for MAAT_OP_DEL, only rule_id and table_name are necessary.
 	int label_id;
 	int expire_after;	//expired after $timeout$ seconds, set to 0 for never timeout.
 };
diff --git a/src/entry/Maat_command.cpp b/src/entry/Maat_command.cpp
index 7ce9ce3..9b056cd 100644
--- a/src/entry/Maat_command.cpp
+++ b/src/entry/Maat_command.cpp
@@ -1220,6 +1220,14 @@ int Maat_cmd_set_lines(Maat_feather_t feather,const struct Maat_line_t** line_ru
 	int ret=0, table_id=0,retry=0,success_cnt=0;
 	struct serial_rule_t *s_rule=NULL;
 	long long server_time=0,absolute_expire_time=0;
+	if(_feather->redis_write_ctx==NULL)
+	{
+		ret=connect_redis_for_write(_feather);
+		if(ret!=0)
+		{
+			return -1;
+		}
+	}
 	server_time=redis_server_time(_feather->redis_write_ctx);
 	s_rule=(struct serial_rule_t *)calloc(sizeof(struct serial_rule_t),line_num);
 	for(i=0;i<line_num;i++)
diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 1fa3f49..c6c94b7 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -30,7 +30,7 @@
 #include "stream_fuzzy_hash.h"
 #include "gram_index_engine.h"
 
-int MAAT_FRAME_VERSION_2_1_20171107=1;
+int MAAT_FRAME_VERSION_2_1_20171205=1;
 
 const char* CHARSET_STRING[]={"NONE","gbk","big5","unicode","utf8","bin",
 							"unicode_ascii_esc","unicode_ascii_aligned","unicode_ncr_dec","unicode_ncr_hex","url_encode_gb2312","url_encode_utf8",""};