--
show variables like 'innodb_lru_scan_depth';
SET GLOBAL innodb_lru_scan_depth=512;
--
show variables like 'innodb_lock_wait_timeout';
set innodb_lock_wait_timeout=100;
--
show variables like 'innodb_flush_log_at_trx_commit';
SET GLOBAL innodb_flush_log_at_trx_commit=2;