# # MDEV-24670 avoid OOM by linux kernel co-operative memory management # set @save_dbug=@@debug_dbug; set @save_limit=@@GLOBAL.innodb_limit_optimistic_insert_debug; set GLOBAL innodb_max_purge_lag_wait=0; CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB; SET GLOBAL innodb_limit_optimistic_insert_debug=2; SET STATEMENT unique_checks=0, foreign_key_checks=0 FOR INSERT INTO t1 SELECT * FROM seq_1_to_1000; SET GLOBAL innodb_limit_optimistic_insert_debug=@save_limit; DROP TABLE t1; SELECT CAST(VARIABLE_VALUE AS INTEGER) INTO @dirty_prev FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='Innodb_buffer_pool_pages_dirty'; set debug_dbug="d,trigger_garbage_collection"; SET GLOBAL innodb_buffer_pool_size=@@innodb_buffer_pool_size; SELECT CAST(VARIABLE_VALUE AS INTEGER) < @dirty_prev AS LESS_DIRTY_IS_GOOD FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='Innodb_buffer_pool_pages_dirty'; LESS_DIRTY_IS_GOOD 1 FOUND 1 /InnoDB: Memory pressure event freed.*/ in mysqld.1.err set debug_dbug=@save_dbug; # End of 10.11 tests