while testing the "no InnoDB Buffer Pool in core dumps" feature (details in ), I discovered that aria_pagecache_buffer_size is not dynamic. This is inconvenient as tuning needs restarting the server. In comparison, key_buffer_size is dynamic for a long time () and innodb_buffer_pool_size is dynamic since MariaDB 10.2 ().
Please make aria_pagecache_buffer_size dynamic.
Note: the priority of this task is set as Major. The main motivation is that the default value for aria_pagecache_buffer_size is 128 MB, which is a lot. If the default value was much smaller (8 MB or less), the priority of this task might be lowered.
Related: MDEV-16607: Consider smaller defaults for MyISAM and Aria cache sizes.
Thanks in advance,