Reduce InnoDB change buffer size for read-heavy BI workload (#114)

Author: Wiktor Maj

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Completed [ARCHITECTURE.md](./docs/ARCHITECTURE.md) (#93)
 * Migrated CI from self-hosted to GitHub-hosted runners with Docker-in-Docker test infrastructure. (#94)
 * Test workflow always builds service images locally for reproducibility. (#97)
+* Reduced InnoDB change buffer size for read-heavy BI workload. (#72)
 * Set InnoDB buffer pool size to 1G for improved query performance. (#71)
 * Relaxed Terraform version constraint to accept any 1.x release. (#40)
 

services/mysql-server/mysql_config.cnf.tpl

@@ -14,5 +14,6 @@ ssl-key = "/etc/mysql/ssl/mysql_server_key.pem"
 require_secure_transport = "ON"
 max_connections = "50"
 max_connect_errors = "50"
+innodb_change_buffer_max_size = "10"
 innodb_buffer_pool_size = "1G"
 innodb_buffer_pool_instances = "1"