MySQL High CPU: Common Causes

There could be various reasons for high CPU usage in MySQL, here are some common ones:

1. Improper query design, such as complex queries, unoptimized queries, and lack of suitable indexes, can result in high CPU usage in MySQL.
2. When there is a large volume of data in the database, the query and data processing time will increase, leading to high CPU usage.
3. Inadequate hardware configuration: If the server’s hardware is not sufficient to support MySQL operation, such as inadequate CPU, memory, or disk configuration, it can lead to high CPU usage.
4. Excessive concurrent connections: If MySQL is handling too many concurrent connections at the same time, it can result in high CPU usage.
5. Improper MySQL configuration, such as unreasonable parameters or lack of optimization, can also result in high CPU usage.
6. Excessive system load: If there are other applications or processes consuming a large amount of CPU resources on the server, it will also affect the CPU usage of MySQL.
7. Lock contention: When multiple queries access the same data simultaneously, it may result in lock contention, leading to high CPU utilization.