Question
How much space does innodb use for the change buffer?
Answers
Prior to the introduction of the innodb_change_buffer_max_size configuration option in MySQL 5.6, the maximum size of the on-disk change buffer in the system tablespace was 1/3 of the InnoDB buffer pool size.
In MySQL 5.6 and later, the innodb_change_buffer_max_size configuration option defines the maximum size of the change buffer as a percentage of the total buffer pool size. By default, innodb_change_buffer_max_size is set to 25. The maximum setting is 50.
InnoDB does not buffer an operation if it would cause the on-disk change buffer to exceed the defined limit.
Change buffer pages are not required to persist in the buffer pool and may be evicted by LRU operations.   Your Comment




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