Resolving Performance Bottlenecks with Plesk: Step-by-Step Guide

What are Plesk Performance Bottlenecks?

Plesk is known for its ease of use in web hosting management, but you may encounter performance issues in some situations. These issues are often related to high CPU and RAM usage, especially in virtual servers (VDS, cloud server), where resource shortages can lead to bottlenecks.

Identifying the Source of the Issue

First, check if there is high CPU or RAM usage on your server. You can connect to your server via SSH and use the following commands:

• top - Real-time system status.
• htop - More detailed system monitoring.
• free -m - View RAM usage.

Determine which processes are consuming high resources. Typically, services like Apache, MySQL, or PHP-FPM could be the source of the problem.

Performance Optimization with Plesk

1. Apache Settings

Optimizing the httpd.conf file for Apache can enhance performance. Check the following settings:

• KeepAlive On
• MaxKeepAliveRequests 100
• KeepAliveTimeout 5

To edit these settings:

sudo nano /etc/httpd/conf/httpd.conf

Add or modify the above values, and then restart Apache:

sudo systemctl restart httpd

2. MySQL Settings

Optimizing the my.cnf file for MySQL can also be beneficial. Check the following settings:

• innodb_buffer_pool_size = 1G (Set up to 70% of your RAM)
• max_connections = 200

To edit these settings:

sudo nano /etc/my.cnf

Add or modify the above values, and then restart MySQL:

sudo systemctl restart mysql

3. PHP-FPM Settings

If Plesk uses PHP-FPM, you may need to edit the www.conf file for performance optimization:

sudo nano /etc/php-fpm.d/www.conf

Check the following settings:

• pm = dynamic
• pm.max_children = 50
• pm.start_servers = 5
• pm.min_spare_servers = 5
• pm.max_spare_servers = 10

After making changes, restart PHP-FPM:

sudo systemctl restart php-fpm

Conclusion

By following the above steps, you can significantly reduce performance bottlenecks on Plesk. Remember, every server and application is different; therefore, you should continuously monitor and adjust your configurations as needed.