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#
# 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;
SET @innodb_buffer_pool_size= @@GLOBAL.innodb_buffer_pool_size;
SET @innodb_buffer_pool_size_min= @@GLOBAL.innodb_buffer_pool_size_auto_min;
SELECT
@@GLOBAL.innodb_buffer_pool_size,
@@GLOBAL.innodb_buffer_pool_size_auto_min,
@@GLOBAL.innodb_buffer_pool_size_max;
@@GLOBAL.innodb_buffer_pool_size @@GLOBAL.innodb_buffer_pool_size_auto_min @@GLOBAL.innodb_buffer_pool_size_max
17825792 16777216 25165824
CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB CHARSET=latin1;
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;
SET STATEMENT debug_dbug="d,trigger_garbage_collection" FOR
SET GLOBAL innodb_buffer_pool_size=@innodb_buffer_pool_size;
FOUND 1 /Memory pressure event disregarded.*/ in mysqld.1.err
SET STATEMENT debug_dbug="d,trigger_garbage_collection" FOR
SET GLOBAL innodb_buffer_pool_size_auto_min=
CAST(@innodb_buffer_pool_size/2 AS UNSIGNED),
innodb_buffer_pool_size=@innodb_buffer_pool_size;
Warnings:
Warning 1292 Truncated incorrect innodb_buffer_pool_size_auto_min value: '8912896'
select @@global.innodb_buffer_pool_size < @innodb_buffer_pool_size;
@@global.innodb_buffer_pool_size < @innodb_buffer_pool_size
1
FOUND 1 /InnoDB: Memory pressure event shrunk.*/ in mysqld.1.err
set debug_dbug=@save_dbug;
SET GLOBAL innodb_buffer_pool_size= @innodb_buffer_pool_size;
SET GLOBAL innodb_buffer_pool_size_auto_min=@innodb_buffer_pool_size_min;
# End of 10.11 tests
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