To help prevent out-of-memory (OOM) events, you can enable managed buffer pool

## Feature Feature To help prevent out-of-memory (OOM) events, you can enable managed buffer pool for Cloud SQL for MySQL 8.0 and later instances. When you enable managed buffer pool, Cloud SQL reduces the value of the`innodb_buffer_pool_size` configuration and frees up memory when memory usage is high, and the instance is in danger of an OOM event. After memory usage stabilizes at a lower value, MySQL increases the value of `innodb_buffer_pool_size` incrementally to its original value. To enable managed buffer pool, your Cloud SQL instance must use a maintenance version of [\[$MYSQL\_VERSION\].R20251004.01\_07](https://docs.cloud.google.com/sql/docs/mysql/maintenance-changelog/)or later. You can't enable managed buffer pool for instances that use a shared core or for instances that are running MySQL 5.6 or MySQL 5.7. For more information, see [Enable managed buffer pool](https://docs.cloud.google.com/sql/docs/mysql/optimize-high-memory-usage#enable-managed-buffer-pool). Support for managed buffer pool is in [Preview](https://cloud.google.com/products#product-launch-stages).