移动数据库目录 | 无法从本地主机或轮询器通过默认端口 3306 访问 mysql

Question

WORK: The only way I can localy acess is to specify the locaction dir of the database in DATABASE_PORT ex:

$database_type     = 'mysql';
$database_default  = 'database';
$database_hostname = 'localhost';
$database_username = 'cacti';
$database_password = 'password';
$database_port     = 'common/mysql/mysql.socket';
$database_retries  = 5;
$database_ssl      = false;
$database_ssl_key  = '';
$database_ssl_cert = '';
$database_ssl_ca   = '';

DOES NOT WORK: Cacti is trying to connect the database but it can't reach like this:

$database_type     = 'mysql';
$database_default  = 'database';
$database_hostname = 'localhost';
$database_username = 'cacti';
$database_password = 'password';
**$database_port     = '3306';**
$database_retries  = 5;
$database_ssl      = false;
$database_ssl_key  = '';
$database_ssl_cert = '';
$database_ssl_ca   = '';

NOT WORKING: Remote Poller

$rdatabase_type     = 'mysql';
$rdatabase_default  = 'database_main';
$rdatabase_hostname = 'remote_host';
$rdatabase_username = 'cacti';
$rdatabase_password = 'password';
$rdatabase_port     = '3306'
$rdatabase_retries  = 5;
$rdatabase_ssl      = false;

How I moved the database:

First check the default dir:

MariaDB [(none)]> select @@datadir;

Output
+-----------------+
| @@datadir       |
+-----------------+
| /var/lib/mysql/ |
+-----------------+
1 row in set (0.00 sec

Stoped process:

sudo systemctl stop mysqld

Rsynk the default database dir to the new location

sudo rsync -av /var/lib/mysql /common/

Rename old mysql

sudo mv /var/lib/mysql /var/lib/mysql.bak

Edit my.conf fie:

    sudo vi /etc/my.cnf
    [mysqld]
    . . .
    datadir=/common/mysql
    socket=/common/mysql/mysql.sock
    . . .

start mysql:

sudo systemctl start mysqld

New location datadir;

MariaDB [(none)]> select @@datadir;
+----------------+
| @@datadir      |
+----------------+
| /common/mysql/ |
+----------------+
1 row in set (0.000 sec
MariaDB [(none)]> SHOW VARIABLES WHERE Variable_name = 'port'
    -> ;
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| port          | 3306  |
+---------------+-------+
1 row in set (0.001 sec)

Answer 1

Problem solved:

my.conf

[client-server] port=3306