DDL doesn't work in MySQL master to master replication while DML can work?

I have two master in replication

left master -> 5.5.47-log MySQL Community Server (GPL)
rigth master ->5.5.47-log MySQL Community Server (GPL)

"left master"

mysql> create table test.left (a int);
mysql> insert into test.left values (1),(2),(3);commit;
mysql> select * from test.left;
+------+
| a    |
+------+
|    1 |
|    2 |
|    3 |
+------+
3 rows in set (0.00 sec)

when I check in "right master"，table structure can be found but no data exists

mysql> select * from test.left;
Empty set (0.00 sec)

I checked "left master" binlog and I can find this DML "insert into test.left values (1),(2),(3);"

[root@backup_master logs]# mysqlbinlog --no-defaults relay-bin.000035|grep "insert" -3
DELIMITER /*!*/;
# at 4
--
# at 416
#160519 14:03:34 server id 132  end_log_pos 374         Query   thread_id=3     exec_time=0     error_code=0
SET TIMESTAMP=1463637814/*!*/;
insert into test.left values (1),(2),(3)
/*!*/;
# at 520
#160519 14:03:34 server id 132  end_log_pos 401         Xid = 14

I checked "right master " relay log and I can also find this "insert statment"

[root@backup_master logs]# mysqlbinlog --no-defaults relay-bin.000035|grep -10 "insert" 
create table test.left (a int)
/*!*/;
# at 347
#160519 14:03:34 server id 132  end_log_pos 270         Query   thread_id=3     exec_time=0     error_code=0
SET TIMESTAMP=1463637814/*!*/;
BEGIN
/*!*/;
# at 416
#160519 14:03:34 server id 132  end_log_pos 374         Query   thread_id=3     exec_time=0     error_code=0
SET TIMESTAMP=1463637814/*!*/;
insert into test.left values (1),(2),(3)
/*!*/;
# at 520
#160519 14:03:34 server id 132  end_log_pos 401         Xid = 14
COMMIT/*!*/;
DELIMITER ;

and "show slave status","error log" and "show processlist" everything is ok!

"right" master

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.233.132
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000009
          Read_Master_Log_Pos: 401
               Relay_Log_File: relay-bin.000035
                Relay_Log_Pos: 547
        Relay_Master_Log_File: mysql-bin.000009
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 401
              Relay_Log_Space: 843
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 132
1 row in set (0.00 sec)

"right" master

mysql> show processlist;
+----+-------------+-----------------------+------+-------------+---------+-----------------------------------------------------------------------------+------------------+
| Id | User        | Host                  | db   | Command     | Time    | State                                                                       | Info             |
+----+-------------+-----------------------+------+-------------+---------+-----------------------------------------------------------------------------+------------------+
|  1 | system user |                       | NULL | Connect     | -750466 | Slave has read all relay log; waiting for the slave I/O thread to update it | NULL             |
|  2 | system user |                       | NULL | Connect     |    3770 | Waiting for master to send event                                            | NULL             |
|  3 | root        | localhost             | NULL | Query       |       0 | NULL                                                                        | show processlist |
|  5 | repl        | 192.168.233.132:56047 | NULL | Binlog Dump |     860 | Master has sent all binlog to slave; waiting for binlog to be updated       | NULL             |
+----+-------------+-----------------------+------+-------------+---------+-----------------------------------------------------------------------------+------------------+
4 rows in set (0.00 sec)

but WHY my time is -750466?

create table ,create database(DDL statement) is no problem! but insert data is not OK!!

"left master" my.cnf

#replication
server-id=132
log-bin=/data/mysql3306/logs/mysql-bin
log-bin-index=/data/mysql3306/logs/mysql-bin.index
binlog_format=mixed
#plugin-dir=/usr/local/mysql/lib/plugin/
#rpl_semi_sync_master_enabled
#rpl_semi_sync_master_timeout= 10000

relay-log=/data/mysql3306/logs/relay-bin
relay-log-index=/data/mysql3306/logs/relay-bin.index
relay_log_info_file=/data/mysql3306/logs/relay-log.info

auto_increment_offset=1
auto_increment_increment=2

"right master" /etc/my.cnf

server-id=135
relay-log=/data/mysql3306/logs/relay-bin
relay-log-index=/data/mysql3306/logs/relay-bin.index
relay_log_info_file=/data/mysql3306/logs/relay-log.info
log-error=/data/mysql3306/logs/error.log

#plugin-dir=/usr/local/mysql/lib/plugin/
#rpl_semi_sync_slave_enabled


log-bin=/data/mysql3306/logs/mysql-bin
log-bin-index=/data/mysql3306/logs/mysql-bin.index
binlog_format=mixed

auto_increment_offset=2
auto_increment_increment=2

sync_binlog=1

when I try to stop "right master" ，an error occurs

mysql> stop slave;
ERROR 1192 (HY000): Can't execute the given command because you have active locked tables or an active transaction

but I can't find any locks!