mytop Can't load '/usr/lib64/perl5/auto/DBD/mysql/mysql.so' for module DBD::mysql: libmysqlclient

[root@garey-mysql2 ~]# mytop
install_driver(mysql) failed: Can't load '/usr/lib64/perl5/auto/DBD/mysql/mysql.so' for module DBD::mysql: libmysqlclient.so.16: cannot open shared object file: No such file or directory at /usr/lib64/perl5/DynaLoader.pm line 200.
 at (eval 12) line 3
Compilation failed in require at (eval 12) line 3.
Perhaps a required shared library or dll isn't installed where expected
 at /usr/bin/mytop line 235
 [root@garey-mysql2 ~]# yum install perl-DBD-MySQL
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: centos-hn.viettelidc.com.vn
 * epel: mirror.premi.st
 * extras: centos-hn.viettelidc.com.vn
 * updates: centos-hn.viettelidc.com.vn
Package perl-DBD-MySQL-4.013-3.el6.x86_64 already installed and latest version
Nothing to do
[root@garey-mysql2 ~]# rpm -qa | grep -i dbd
perl-DBD-MySQL-4.013-3.el6.x86_64
[root@garey-mysql2 ~]# rpm -e --nodeps perl-DBD-MySQL-4.013-3.el6.x86_64
[root@garey-mysql2 ~]# rpm -qa | grep dbd
[root@garey-mysql2 ~]# yum install perl-DBD-mysql
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: centos-hn.viettelidc.com.vn
 * epel: mirror.premi.st
 * extras: centos-hn.viettelidc.com.vn
 * updates: centos-hn.viettelidc.com.vn
Resolving Dependencies
--> Running transaction check
---> Package perl-DBD-MySQL.x86_64 0:4.013-3.el6 will be installed
--> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: perl-DBD-MySQL-4.013-3.e                                                                                           l6.x86_64
--> Processing Dependency: libmysqlclient.so.16()(64bit) for package: perl-DBD-MySQL-4.013-3.el6.x86_64
--> Running transaction check
---> Package mysql-libs.x86_64 0:5.1.73-7.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================
 Package                        Arch                   Version                      Repository            Size
===============================================================================================================
Installing:
 perl-DBD-MySQL                 x86_64                 4.013-3.el6                  base                 134 k
Installing for dependencies:
 mysql-libs                     x86_64                 5.1.73-7.el6                 base                 1.2 M

Transaction Summary
===============================================================================================================
Install       2 Package(s)

Total download size: 1.4 M
Installed size: 4.4 M
Is this ok [y/N]: y
Downloading Packages:
(1/2): mysql-libs-5.1.73-7.el6.x86_64.rpm                                                                                                                                          | 1.2 MB     00:00
(2/2): perl-DBD-MySQL-4.013-3.el6.x86_64.rpm                                                                                                                                       | 134 kB     00:00
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                      39 kB/s | 1.4 MB     00:35
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Warning: RPMDB altered outside of yum.
** Found 4 pre-existing rpmdb problem(s), 'yum check' output follows:
mytop-1.7-3.b737f60.el6.noarch has missing requires of perl(DBD::mysql) >= ('0', '1', None)
2:postfix-2.6.6-6.el6_7.1.x86_64 has missing requires of libmysqlclient.so.16()(64bit)
2:postfix-2.6.6-6.el6_7.1.x86_64 has missing requires of libmysqlclient.so.16(libmysqlclient_16)(64bit)
2:postfix-2.6.6-6.el6_7.1.x86_64 has missing requires of mysql-libs
  Installing : mysql-libs-5.1.73-7.el6.x86_64                                                                                                                                                         1/2
warning: /etc/my.cnf created as /etc/my.cnf.rpmnew
  Installing : perl-DBD-MySQL-4.013-3.el6.x86_64                                                                                                                                                      2/2
  Verifying  : perl-DBD-MySQL-4.013-3.el6.x86_64                                                                                                                                                      1/2
  Verifying  : mysql-libs-5.1.73-7.el6.x86_64                                                                                                                                                         2/2

Installed:
  perl-DBD-MySQL.x86_64 0:4.013-3.el6

Dependency Installed:
  mysql-libs.x86_64 0:5.1.73-7.el6

Complete!

[root@garey-mysql2 ~]# rpm -qa | grep -i dbd
perl-DBD-MySQL-4.013-3.el6.x86_64

[root@garey-mysql2 ~]# mytop
MySQL on localhost (5.6.24-log)                                                                                                                                                   up 4+03:52:10 [15:38:39]
 Queries: 7.0    qps:    0 Slow:     0.0         Se/In/Up/De(%):    14/00/00/00

 Key Efficiency: 100.0%  Bps in/out:   0.0/  0.0

      Id      User         Host/IP         DB      Time    Cmd Query or State
       --      ----         -------         --      ----    --- ----------
        4      root       localhost       test         0  Query show full processlist
        1 system us                               359512 Connec Slave has read all relay log; waiting for the slave I/O thread to update it
        2 system us                               359513 Connec Connecting to master