diff --git a/inc/Maat_command.h b/inc/Maat_command.h
index 3102222..d35a4d3 100644
--- a/inc/Maat_command.h
+++ b/inc/Maat_command.h
@@ -128,8 +128,9 @@ void Maat_add_region2cmd(struct Maat_cmd_t* cmd,int which_group,const struct Maa
 
 void Maat_free_cmd(struct Maat_cmd_t* cmd);
 int Maat_format_cmd(struct Maat_cmd_t* cmd, char* buffer, int size);
+char* Maat_str_escape(char* dst,int size,const char*src);
 
-// The below command functions are NOT thread safe.
+// The following functions are NOT thread safe.
 int Maat_cmd(Maat_feather_t feather,struct Maat_cmd_t* cmd,enum MAAT_OPERATION op);
 
 //pipeline model
diff --git a/src/entry/Maat_command.cpp b/src/entry/Maat_command.cpp
index 1f86503..b33f491 100644
--- a/src/entry/Maat_command.cpp
+++ b/src/entry/Maat_command.cpp
@@ -855,7 +855,7 @@ void _maat_copy_region(struct Maat_region_t* dst,const struct Maat_region_t* src
 		case REGION_DIGEST:
 			dst->digest_rule.digest_string=_maat_strdup(src->digest_rule.digest_string);
 			break;
-		case REGION_SIMILARITY:
+		case REGION_SIMILARITY:	
 			dst->similarity_rule.target=_maat_strdup(src->similarity_rule.target);
 			break;
 		default:
diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 02dd5a2..68d3694 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -414,6 +414,39 @@ char* str_unescape(char* s)
 	s[j]='\0';
 	return s;
 }
+char* Maat_str_escape(char* dst,int size,const char*src)
+{
+	int i=0,j=0;
+	int len=strlen(src);
+	for(i=0,j=0;i<len&&j<size;i++)
+	{
+		switch(src[i])
+		{
+			case '&':
+				dst[j]='\\';
+				dst[j+1]='&';
+				j+=2;
+				break;
+			case ' ':
+				dst[j]='\\';
+				dst[j+1]='b';//space,0x20;
+				j+=2;
+				break;
+			case '\\':
+				dst[j]='\\';
+				dst[j+1]='\\';
+				j+=2;
+				break;
+			default:
+				dst[j]=src[i];
+				j++;	//undo the followed i++
+				break;
+
+		}
+	}
+	dst[j]='\0';
+	return dst;
+}
 int cnt_maskbits(struct in6_addr mask)
 {
 	unsigned int i=0;
diff --git a/src/entry/Maat_rule_internal.h b/src/entry/Maat_rule_internal.h
index 90b4ada..9d832af 100644
--- a/src/entry/Maat_rule_internal.h
+++ b/src/entry/Maat_rule_internal.h
@@ -451,6 +451,7 @@ void maat_stat_init(struct _Maat_feather_t* feather);
 void maat_stat_table(struct _Maat_table_info_t* p_table,int scan_len,struct timespec* start, struct timespec* end,int thread_num);
 void maat_stat_output(struct _Maat_feather_t* feather);
 char* _maat_strdup(const char* s);
+char* str_unescape(char* s);
 void redis_monitor_traverse(unsigned int version,redisContext *c,
 							void (*start)(unsigned int ,int ,void*),//vesion,CM_UPDATE_TYPE_*,u_para
 							void (*update)(const char* ,const char*,void* ),//table name ,line ,u_para
diff --git a/src/entry/Maat_stat.cpp b/src/entry/Maat_stat.cpp
index 1addd1f..2e633e2 100644
--- a/src/entry/Maat_stat.cpp
+++ b/src/entry/Maat_stat.cpp
@@ -52,7 +52,7 @@ void maat_stat_init(struct _Maat_feather_t* feather)
 	FS_set_para(feather->stat_handle, CREATE_THREAD, &value, sizeof(value));
 	
 	feather->fs_status_id[STATUS_VERSION]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"version");
-	feather->fs_status_id[STATUS_THRED_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"active_thread");
+	feather->fs_status_id[STATUS_THRED_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"thread");
 	feather->fs_status_id[STATUS_TABLE_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"table_num");
 
 	feather->fs_status_id[STATUS_PLUGIN_CACHE_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"plug_cache");
@@ -61,20 +61,21 @@ void maat_stat_init(struct _Maat_feather_t* feather)
 	feather->fs_status_id[STATUS_GROUP_RULE_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"grp_num");
 	feather->fs_status_id[STATUS_COMPILE_RULE_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"compile_num");
 
-	feather->fs_status_id[STATUS_POSTPONE_QSIZE]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"postpone_num");
+	feather->fs_status_id[STATUS_POSTPONE_QSIZE]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"postponed");
 	feather->fs_status_id[STATUS_GARBAGE_QSIZE]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"garbage_num");	
 
 	feather->fs_status_id[STATUS_OUTER_MID_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"outer_mid");
 	feather->fs_status_id[STATUS_INNER_MID_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"inner_mid");
-	feather->fs_status_id[STATUS_ORPHAN_GROUP_SAVING]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"orphan_grp_sv");
+	feather->fs_status_id[STATUS_ZOMBIE_RS_STREAM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"z_stream");
+
+	feather->fs_status_id[STATUS_ORPHAN_GROUP_SAVING]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"only_grp_sv");
 	feather->fs_status_id[STATUS_LAST_REGION_SAVING]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"last_rgn_sv");
 
 	feather->fs_status_id[STATUS_TOTAL_SCAN_LEN]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"scan_bytes");
 	feather->fs_status_id[STATUS_TOTAL_SCAN_CNT]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"scan_times");
-	feather->fs_status_id[STATUS_UPDATE_ERR_CNT]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"update_error");
-	feather->fs_status_id[STATUS_ICONV_ERR_CNT]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"iconv_error");
+	feather->fs_status_id[STATUS_UPDATE_ERR_CNT]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"update_err");
+	feather->fs_status_id[STATUS_ICONV_ERR_CNT]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"iconv_err");
 	feather->fs_status_id[STATUS_SCAN_ERR_CNT]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"scan_error");
-	feather->fs_status_id[STATUS_ZOMBIE_RS_STREAM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"zombie_stream");
 	feather->fs_status_id[STATUS_CMD_NUM]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"cmd_commit");
 	feather->fs_status_id[STATUS_CMD_Q_SIZE]=FS_register(feather->stat_handle, FS_STYLE_STATUS, FS_CALC_CURRENT,"cmd_in_q");
 
diff --git a/test/maat_test.cpp b/test/maat_test.cpp
index bbfc139..3591b45 100644
--- a/test/maat_test.cpp
+++ b/test/maat_test.cpp
@@ -565,7 +565,11 @@ void test_command(Maat_feather_t feather)
 {
 	const char* scan_data="Hiredis is a minimalistic C client library for the Redis database.\r\n";
 	const char* table_name="HTTP_URL";
-	const char* keywords="Hiredis&C\\bClient";
+	
+	const char* keywords1="Hiredis";
+	const char* keywords2="C Client";
+	char escape_buff1[256],escape_buff2[256];
+	char keywords[256];
 	scan_status_t mid=NULL;
 	int config_id=-1, table_id=0, ret=0;
 	int output_ids[4];
@@ -573,6 +577,9 @@ void test_command(Maat_feather_t feather)
 	struct Maat_rule_t result;
 	int timeout=0;//seconds
 	int label_id=5210;
+	Maat_str_escape(escape_buff1, sizeof(escape_buff1),keywords1);
+	Maat_str_escape(escape_buff2, sizeof(escape_buff2),keywords2);
+	snprintf(keywords,sizeof(keywords),"%s&%s",escape_buff1,escape_buff2);
 	config_id=(int)Maat_cmd_incrby(feather, "TEST_SEQ", 1);
 	test_add_command(feather,table_name,config_id, 0, label_id, keywords);
 	sleep(1);//waiting for commands go into effect
@@ -628,6 +635,7 @@ void test_command(Maat_feather_t feather)
 	{
 		printf("Test Maat command timeout success.\n");
 	}
+	Maat_clean_status(&mid);
 }
 int main(int argc,char* argv[])
 {