apiVersion: v1
kind: ConfigMap
metadata:
  name: mysql-config
  namespace: epcare
data:
  mysql.cnf: |
    [mysqld]
    # optimise for large db-imports
    innodb_redo_log_capacity = 2147483648

    # Buffer pool - bump this if the host has more RAM available
    innodb_buffer_pool_size = 512M

    # Log buffer - good
    innodb_log_buffer_size = 256M

    # Flush behavior - 2 is good for import speed, consider switching
    # back to 1 in production for ACID compliance
    innodb_flush_log_at_trx_commit = 2

    # WARNING: O_DIRECT can fail on overlay2 (common Docker storage driver)
    # Safer default for containers:
    innodb_flush_method = fsync

    # Recommended additions for large imports:
    innodb_write_io_threads = 8
    innodb_read_io_threads = 8
    bulk_insert_buffer_size = 256M

    sql_mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION"