Here are some steps to optimize MySQL performance settings for Drupal 8:
1. Ensure that your MySQL server is configured correctly. Check the values of the MySQL variables by using the following command:
SHOW VARIABLES;
This will display a long list of variables and their current values. Compare these values against recommended values for your version of MySQL.
1. Increase the buffer pool size. The buffer pool is a memory cache used by MySQL to improve performance. You can increase the buffer pool size by adding the following line to the my.cnf configuration file:
innodb_buffer_pool\_size = 256M
1. Set the query cache size. The query cache is used by MySQL to cache frequently used queries to improve performance. You can increase the query cache size by adding the following line to the my.cnf configuration file:
query_cache_size = 64M
1. Enable slow query log. The slow query log records queries that take longer than a specified time to execute. This can help you identify performance issues. You can enable the slow query log by adding the following lines to the my.cnf configuration file:
slow_query_log = 1
slow_query_log\_file = /var/log/mysql/mysql-slow.log
long_query_time = 2
1. Increase max_allowed_packet size. This setting controls the maximum size of packets that can be sent or received by MySQL. You can increase this value by adding the following line to the my.cnf configuration file:
max_allowed_packet = 64M
1. Optimize your Drupal database. Run the following command to optimize your Drupal database tables:
mysqlcheck —optimize —all-databases
1. Use a content delivery network (CDN). A CDN can improve website performance by distributing content across multiple servers. Drupal has many modules available for integrating with CDNs.
These steps should help you optimize your MySQL performance settings for Drupal 8.
