17.8.12 Container Detection and Configuration

As of MySQL 9.3.0, if installed in a container, the server automatically reads the container's CPU and memory resource limits. The values for the following system variables are calculated and set based on those resource limits:

The values of the following are calculated based on the number of logical CPUs:
- innodb_buffer_pool_instances
- innodb_page_cleaners
- innodb_purge_threads
- innodb_read_io_threads
- innodb_parallel_read_threads
- innodb_redo_log_capacity (value set only if --innodb-dedicated-server is enabled.)
- innodb_log_writer_threads
The values of the following are calculated based on the available memory:
- temptable_max_ram
- innodb_buffer_pool_size (value set only if --innodb-dedicated-server is enabled.)