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Displaying posts with tag: innodb_buffer_pool_chunk_size (reset)
How to get confused about buffer pool size allocation?

How it feels when you realize that, something going to be scary in term of question – “Wait, why? how?”
Let’s see:

I am trying to allocate 9G buffer pool size with 64 instances:


From error log it said that:

InnoDB: Initializing buffer pool, total size = 16G, instances = 64, chunk size = 128M

“Wait, why? how?” N1

From select it is also allocated 16G:

mysql> select @@innodb_buffer_pool_size/1024/1024/1024;
| @@innodb_buffer_pool_size/1024/1024/1024 |
| 16.000000000000 |

Just continue to increase pool size:

If you give 17G:

[Note] InnoDB: Initializing buffer pool, …

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