Check Limit on System
cat /proc/$(pgrep mysqld$)/limits
nano /etc/systemd/system/multi-user.target.wants/mariadb.service
Edit Limit on:
LimitNOFILE=65535
Change limit Check
mysql -v
Enter command:
SHOW VARIABLES LIKE 'Open_files_limit';
Show example:
root@b2bmails:~# mysql -v Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 5 Server version: 10.1.26-MariaDB-0+deb9u1 Debian 9.1 Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Reading history-file /root/.mysql_history Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> SHOW VARIABLES LIKE 'Open_files_limit';. -------------- SHOW VARIABLES LIKE 'Open_files_limit' -------------- +------------------+-------+ | Variable_name | Value | +------------------+-------+ | open_files_limit | 65535 | +------------------+-------+ 1 row in set (0.00 sec)
Sometimes you need to change another limit in the file.
nano /etc/pam.d/common-session
ADD end line
session required pam_limits.so
Иногда по ошибке или магии ищите лимит в файле
nano /etc/systemd/system/mysql.service.d/nofile.conf
