diff --git a/src/entry/Maat_api.cpp b/src/entry/Maat_api.cpp
index 2c91953..ca8a94c 100644
--- a/src/entry/Maat_api.cpp
+++ b/src/entry/Maat_api.cpp
@@ -1013,7 +1013,10 @@ int Maat_rule_get_ex_new_index(Maat_feather_t feather, const char* compile_table
 	p_table->ex_desc[idx].dup_func=dup_func;
 
 	p_table->ex_data_num++;
-	MESA_htable_iterate(_feather->scanner->compile_hash, rule_ex_data_new_cb, p_table->ex_desc+idx);
+	if(_feather->scanner!=NULL)
+	{
+		MESA_htable_iterate(_feather->scanner->compile_hash, rule_ex_data_new_cb, p_table->ex_desc+idx);
+	}
 failed:
 	pthread_mutex_unlock(&(_feather->backgroud_update_mutex));
 	return idx;
diff --git a/src/entry/Maat_command.cpp b/src/entry/Maat_command.cpp
index 48791ad..a88ad66 100644
--- a/src/entry/Maat_command.cpp
+++ b/src/entry/Maat_command.cpp
@@ -1532,14 +1532,14 @@ void _get_foregin_keys(struct serial_rule_t* p_rule, int* foreign_columns, int n
 			MESA_handle_runtime_log(logger,RLOG_LV_FATAL,maat_redis_monitor
 									, "Get %s,%d foreign keys failed: No %dth column."
 									, p_rule->table_name, p_rule->rule_id, foreign_columns[i]);
-			continue;
+			break;
 		}
 		if(0!=strncmp(p_foreign, foreign_source_prefix, strlen(foreign_source_prefix)))
 		{
 			MESA_handle_runtime_log(logger,RLOG_LV_FATAL,maat_redis_monitor
 									,"Get %s,%d foreign key failed: Invalid source prefix %s."
 									, p_rule->table_name, p_rule->rule_id, p_foreign);
-			continue;
+			break;
 		}
 		p_rule->f_keys[i].column=foreign_columns[i];
 		foreign_key_size=foreign_key_size-strlen(foreign_source_prefix);
@@ -1560,7 +1560,13 @@ void _get_foregin_keys(struct serial_rule_t* p_rule, int* foreign_columns, int n
 			p_rule->f_keys[i].is_existed=1;
 		}
 	}
-	return;
+	if(i!=n_foreign)
+	{
+		p_rule->n_foreign=0;
+		free(p_rule->f_keys);
+		p_rule->f_keys=NULL;
+		p_rule->with_error=1;
+	}
 }
 int get_foreign_keys_define(redisContext *ctx, struct serial_rule_t* rule_list, int rule_num, _Maat_feather_t* feather, const char* dir,void *logger)
 {
@@ -1784,7 +1790,7 @@ void redis_monitor_traverse(long        long version,redisContext *c,
 								update_type==CM_UPDATE_TYPE_INC?"INC":"FULL",version,new_version,rule_num);
 	for(i=0;i<rule_num;i++)
 	{
-		if(rule_list[i].table_line==NULL)
+		if(rule_list[i].table_line==NULL||rule_list[i].with_error==1)
 		{
 			continue;
 		}
diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index a1b3844..9c575ac 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -2346,7 +2346,14 @@ void update_group_rule(struct _Maat_table_info_t* table,const char* table_line,s
 	ret=sscanf(table_line,"%d\t%d\t%d",&(db_group_rule.group_id)
 										,&(db_group_rule.compile_id)
 										,&(db_group_rule.is_valid));
-	assert(ret==3);
+	if(ret!=3)
+	{
+		MESA_handle_runtime_log(logger,RLOG_LV_INFO,maat_module ,
+							"update error,invalid format of group table %s:%s"
+							,table->table_name[table->updating_name], table_line);	
+		table->udpate_err_cnt++;
+		return;
+	}
 	if(db_group_rule.is_valid==FALSE)
 	{
 		del_group_rule(table, &db_group_rule,scanner,logger);
diff --git a/src/inc_internal/Maat_rule_internal.h b/src/inc_internal/Maat_rule_internal.h
index 6f95eec..b2afb63 100644
--- a/src/inc_internal/Maat_rule_internal.h
+++ b/src/inc_internal/Maat_rule_internal.h
@@ -492,6 +492,7 @@ struct serial_rule_t		//rm= Redis Maat
 	enum MAAT_OPERATION op;//0: delete, 1: add.
 	long rule_id;
 	int label_id;
+	char with_error;
 	long long timeout;			// absolute unix time.
 	char table_name[256];
 	char* table_line;