mariadb 10.3.39 не меняются переменные из конфига

:/etc/mysql/mariadb.conf.d# grep -v ^# 50-server.cnf

[server]

[mysqld]

user                    = mysql
pid-file                = /run/mysqld/mysqld.pid
socket                  = /run/mysqld/mysqld.sock
basedir                 = /usr
datadir                 = /var/lib/mysql
tmpdir                  = /tmp
lc-messages-dir         = /usr/share/mysql

bind-address            = 127.0.0.1


query_cache_size        = 16M

log_error = /var/log/mysql/error.log
expire_logs_days        = 10


character-set-server  = utf8mb4
collation-server      = utf8mb4_general_ci

innodb_buffer_pool_size = 268435456


[embedded]

[mariadb]

[mariadb-10.3]

MariaDB [(none)]> show variables like 'innodb_buffer_pool%';
+-------------------------------------+----------------+
| Variable_name                       | Value          |
+-------------------------------------+----------------+
| innodb_buffer_pool_chunk_size       | 134217728      |
| innodb_buffer_pool_dump_at_shutdown | ON             |
| innodb_buffer_pool_dump_now         | OFF            |
| innodb_buffer_pool_dump_pct         | 25             |
| innodb_buffer_pool_filename         | ib_buffer_pool |
| innodb_buffer_pool_instances        | 1              |
| innodb_buffer_pool_load_abort       | OFF            |
| innodb_buffer_pool_load_at_startup  | ON             |
| innodb_buffer_pool_load_now         | OFF            |
| innodb_buffer_pool_size             | 134217728      |
+-------------------------------------+----------------+

SET GLOBAL innodb_buffer_pool_size = 256000000;