database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

MDEV-13626: Import and adjust buffer pool resizing tests from MySQL 5.7

Browse Source
This commit is contained in:
Marko Mäkelä
2020-03-19 07:46:30 +02:00
parent e28b4b68d3
commit bfb5e1c3f0
9 changed files with 640 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
mysql-test/suite/innodb/r/buf_pool_resize_oom.result Normal file
View File

@ -0,0 +1,8 @@
#
# Bug #21348684 SIGABRT DURING RESIZING THE INNODB BUFFER POOL
# ONLINE WITH MEMORY FULL CONDITION
#
call mtr.add_suppression("InnoDB: .* failed to allocate the chunk array");
SET GLOBAL innodb_disable_resize_buffer_pool_debug=OFF;
SET GLOBAL debug_dbug='+d,buf_pool_resize_chunk_null';
SET GLOBAL innodb_buffer_pool_size=@@innodb_buffer_pool_size + 1048576;

46
mysql-test/suite/innodb/r/innodb_buffer_pool_load_now.result Normal file
View File

@ -0,0 +1,46 @@
SET GLOBAL innodb_buffer_pool_dump_pct=100;
CREATE TABLE ib_bp_test
(a INT AUTO_INCREMENT, b VARCHAR(64), c TEXT, PRIMARY KEY (a), KEY (b, c(128)))
ENGINE=INNODB;
SELECT COUNT(*) FROM information_schema.innodb_buffer_page_lru
WHERE table_name LIKE '%ib_bp_test%';
COUNT(*)
2
SELECT COUNT(*) FROM information_schema.innodb_buffer_page_lru
WHERE table_name LIKE '%ib_bp_test%';
COUNT(*)
{checked_valid}
SET GLOBAL innodb_buffer_pool_dump_now = ON;
SELECT COUNT(*) FROM information_schema.innodb_buffer_page_lru
WHERE table_name LIKE '%ib_bp_test%';
COUNT(*)
0
select count(*) from ib_bp_test where a = 1;
count(*)
1
SET GLOBAL innodb_buffer_pool_load_now = ON;
SELECT variable_value
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
variable_value
Buffer pool(s) load completed at TIMESTAMP_NOW
SELECT COUNT(*) FROM information_schema.innodb_buffer_page_lru
WHERE table_name LIKE '%ib_bp_test%';
COUNT(*)
{checked_valid}
call mtr.add_suppression("InnoDB: Error parsing");
SET GLOBAL innodb_buffer_pool_load_now = ON;
# Re-write some valid pages to the dump file, make sure the space
# should be valid but all the page no should be out of bound of the file
SET GLOBAL innodb_buffer_pool_load_now = ON;
SELECT variable_value
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
variable_value
Buffer pool(s) load completed at TIMESTAMP_NOW
DROP TABLE ib_bp_test;
SET GLOBAL innodb_buffer_pool_dump_pct=default;
#
# Bug#21371070 [ERROR] INNODB: CANNOT ALLOCATE 0 BYTES: SUCCESS
#
SET GLOBAL innodb_buffer_pool_load_now = ON;

109
mysql-test/suite/innodb/r/innodb_buffer_pool_resize_debug.result Normal file
View File

@ -0,0 +1,109 @@
set global innodb_file_per_table=ON;
set global innodb_thread_concurrency=20;
connect con1,localhost,root,,;
connect con2,localhost,root,,;
connect con3,localhost,root,,;
connect con4,localhost,root,,;
connect con5,localhost,root,,;
connect con6,localhost,root,,;
connect con7,localhost,root,,;
connect con8,localhost,root,,;
create table t2 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t2 (c1, c2) values (1, 1);
create table t3 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t3 (c1, c2) values (1, 1);
create table t4 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t4 (c1, c2) values (1, 1);
create table t5 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t5 (c1, c2) values (1, 1);
create table t6 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t6 (c1, c2) values (1, 1);
create database test2;
create table test2.t7 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into test2.t7 (c1, c2) values (1, 1);
drop table test2.t7;
connection con1;
set @save_dbug=@@global.debug_dbug;
set global debug_dbug="+d,ib_buf_pool_resize_wait_before_resize";
set global innodb_buffer_pool_size = 12*1024*1024;
set global innodb_buffer_pool_size = 8*1024*1024;
ERROR HY000: Another buffer pool resize is already in progress.
select @@global.innodb_buffer_pool_size;
@@global.innodb_buffer_pool_size
8388608
select @@global.innodb_adaptive_hash_index;
@@global.innodb_adaptive_hash_index
0
set global innodb_adaptive_hash_index = ON;
select @@global.innodb_adaptive_hash_index;
@@global.innodb_adaptive_hash_index
0
set global innodb_adaptive_hash_index = OFF;
select @@global.innodb_adaptive_hash_index;
@@global.innodb_adaptive_hash_index
0
create table t1 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
connection con2;
analyze table t2;
connection con3;
alter table t3 algorithm=inplace, add index idx (c1);
connection con4;
alter table t4 rename to t0;
connection con5;
drop table t5;
connection con6;
alter table t6 discard tablespace;
connection con7;
drop database test2;
connection con8;
select count(*) > 0 from information_schema.innodb_buffer_page;
connection default;
set global debug_dbug=@save_dbug;
connection con1;
connection con2;
Table Op Msg_type Msg_text
test.t2 analyze status OK
connection con3;
connection con4;
connection con5;
connection con6;
connection con7;
connection con8;
count(*) > 0
1
connection default;
disconnect con3;
disconnect con4;
disconnect con5;
disconnect con6;
disconnect con7;
disconnect con8;
disconnect con1;
disconnect con2;
call mtr.add_suppression("\\[ERROR\\] InnoDB: buffer pool 0 : failed to allocate new memory.");
connection default;
set global debug_dbug="+d,ib_buf_chunk_init_fails";
set global innodb_buffer_pool_size = 16*1024*1024;
set global debug_dbug=@save_dbug;
create table t8 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t8 (c1, c2) values (1, 1);
drop table t8;
drop table t1;
drop table t2;
drop table t3;
drop table t0;
drop table t6;
#
# BUG#23590280 NO WARNING WHEN REDUCING INNODB_BUFFER_POOL_SIZE INSIZE THE FIRST CHUNK
#
SET @save_disable = @@GLOBAL.innodb_disable_background_merge;
SET GLOBAL innodb_disable_background_merge = ON;
set @old_innodb_disable_resize = @@innodb_disable_resize_buffer_pool_debug;
set global innodb_disable_resize_buffer_pool_debug = OFF;
set @before_innodb_buffer_pool_size = @@innodb_buffer_pool_size;
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size;
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size * 2;
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size;
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size;
SET GLOBAL innodb_disable_resize_buffer_pool_debug = @old_innodb_disable_resize;
SET GLOBAL innodb_disable_background_merge = @save_disable;

1
mysql-test/suite/innodb/t/buf_pool_resize_oom.opt Normal file
View File

@ -0,0 +1 @@
--innodb-buffer-pool-size=1G

30
mysql-test/suite/innodb/t/buf_pool_resize_oom.test Normal file
View File

@ -0,0 +1,30 @@
--source include/have_innodb.inc
--source include/have_debug.inc
# Allocating 1 GiB of buffer pool is pretty steep!
--source include/big_test.inc
--source include/not_embedded.inc
--echo #
--echo # Bug #21348684 SIGABRT DURING RESIZING THE INNODB BUFFER POOL
--echo # ONLINE WITH MEMORY FULL CONDITION
--echo #
call mtr.add_suppression("InnoDB: .* failed to allocate the chunk array");
SET GLOBAL innodb_disable_resize_buffer_pool_debug=OFF;
SET GLOBAL debug_dbug='+d,buf_pool_resize_chunk_null';
--disable_warnings
SET GLOBAL innodb_buffer_pool_size=@@innodb_buffer_pool_size + 1048576;
--enable_warnings
let $wait_timeout = 60;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 27) = 'Resizing buffer pool failed'
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
# Restart the server, because the buffer pool would not necessarily be
# shrunk afterwards even if we request it.
--source include/restart_mysqld.inc

3
mysql-test/suite/innodb/t/innodb_buffer_pool_load_now.opt Normal file
View File

@ -0,0 +1,3 @@
--innodb-buffer-pool-size=64M
--skip-innodb-buffer-pool-load-at-startup
--skip-innodb-buffer-pool-dump-at-shutdown

201
mysql-test/suite/innodb/t/innodb_buffer_pool_load_now.test Normal file
View File

@ -0,0 +1,201 @@
#Want to skip this test from daily Valgrind execution
--source include/no_valgrind_without_big.inc
#
# Test for the functionality of InnoDB Buffer Pool dump/load.
#
# This case checks buffer pool dump/load works as expected
# with innodb_buffer_pool_dump_now=ON
# and innodb_buffer_pool_load_now=ON
--source include/have_innodb.inc
# include/restart_mysqld.inc does not work in embedded mode
--source include/not_embedded.inc
--let $file = `SELECT CONCAT(@@datadir, @@global.innodb_buffer_pool_filename)`
--error 0,1
--remove_file $file
# Dump the whole buffer pool because if only a portion of it is dumped, we
# cannot be sure how many of the ib_bp_test's pages will end up in the dump.
SET GLOBAL innodb_buffer_pool_dump_pct=100;
# Create a table and populate it with some data
CREATE TABLE ib_bp_test
(a INT AUTO_INCREMENT, b VARCHAR(64), c TEXT, PRIMARY KEY (a), KEY (b, c(128)))
ENGINE=INNODB;
let $check_cnt =
SELECT COUNT(*) FROM information_schema.innodb_buffer_page_lru
WHERE table_name LIKE '%ib_bp_test%';
--let SPACE = `SELECT space FROM information_schema.innodb_sys_tables WHERE name LIKE '%ib_bp_test%'`
# See that we have a small number of pages in the LRU
--eval $check_cnt
# Here we end up with 16382 rows in the table
--disable_query_log
INSERT INTO ib_bp_test (b, c) VALUES (REPEAT('b', 64), REPEAT('c', 256));
INSERT INTO ib_bp_test (b, c) VALUES (REPEAT('B', 64), REPEAT('C', 256));
let $i=12;
while ($i)
{
--eval INSERT INTO ib_bp_test (b, c) VALUES ($i, $i * $i);
INSERT INTO ib_bp_test (b, c) SELECT b, c FROM ib_bp_test;
dec $i;
}
--enable_query_log
# Accept 83 for 64k page size, 163 for 32k page size, 329 for 16k page size,
# 662 for 8k page size & 1392 for 4k page size
--replace_result 83 {checked_valid} 163 {checked_valid} 329 {checked_valid} 662 {checked_valid} 1392 {checked_valid}
--eval $check_cnt
# Dump
SET GLOBAL innodb_buffer_pool_dump_now = ON;
# Wait for the dump to complete
--disable_warnings
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 33) = 'Buffer pool(s) dump completed at '
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_dump_status';
--enable_warnings
--source include/wait_condition.inc
# Confirm the file has been created
--file_exists $file
# Add some garbage records to the dump file
--let IBDUMPFILE = $file
perl;
my $fn = $ENV{'IBDUMPFILE'};
open(my $fh, '>>', $fn) || die "perl open($fn): $!";
print $fh "123456,0\n";
print $fh "0,123456\n";
print $fh "123456,123456\n";
close($fh);
EOF
--move_file $file $file.now
--source include/shutdown_mysqld.inc
# Make sure no dump after shutdown
--error 1
--file_exists $file
--source include/start_mysqld.inc
--move_file $file.now $file
# See that we have no pages in the LRU
--eval $check_cnt
# Load the table so that entries in the I_S table do not appear as NULL
select count(*) from ib_bp_test where a = 1;
# Load
SET GLOBAL innodb_buffer_pool_load_now = ON;
# Wait for the load to complete
--disable_warnings
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 33) = 'Buffer pool(s) load completed at '
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
--enable_warnings
--source include/wait_condition.inc
# Show the status, interesting if the above timed out
--disable_warnings
--replace_regex /[0-9]{6}[[:space:]]+[0-9]{1,2}:[0-9]{2}:[0-9]{2}/TIMESTAMP_NOW/
SELECT variable_value
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
--enable_warnings
# Accept 83 for 64k page size, 163 for 32k page size, 329 for 16k page size,
# 662 for 8k page size & 1392 for 4k page size
--replace_result 83 {checked_valid} 163 {checked_valid} 329 {checked_valid} 662 {checked_valid} 1392 {checked_valid}
--eval $check_cnt
# Add some total garbage to the dump file
--let IBDUMPFILE = $file
perl;
my $fn = $ENV{'IBDUMPFILE'};
open(my $fh, '>>', $fn) || die "perl open($fn): $!";
print $fh "abcdefg\n";
close($fh);
EOF
call mtr.add_suppression("InnoDB: Error parsing");
# Load
SET GLOBAL innodb_buffer_pool_load_now = ON;
# Wait for the load to fail
--disable_warnings
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 13) = 'Error parsing'
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
--enable_warnings
--source include/wait_condition.inc
--echo # Re-write some valid pages to the dump file, make sure the space
--echo # should be valid but all the page no should be out of bound of the file
--let IBDUMPFILE = $file
perl;
my $fn = $ENV{'IBDUMPFILE'};
my $space = $ENV{'SPACE'};
open(my $fh, '>', $fn) || die "perl open($fn): $!";
print $fh "$space,10000\n";
print $fh "$space,10001\n";
print $fh "$space,10002\n";
close($fh);
EOF
# We force the restart so that the table would be closed
--source include/restart_mysqld.inc
# Load directly, without accessing the table first
SET GLOBAL innodb_buffer_pool_load_now = ON;
# Wait for the load to complete
--disable_warnings
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 33) = 'Buffer pool(s) load completed at '
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
--enable_warnings
--source include/wait_condition.inc
# Show the status, interesting if the above timed out
--disable_warnings
--replace_regex /[0-9]{6}[[:space:]]+[0-9]{1,2}:[0-9]{2}:[0-9]{2}/TIMESTAMP_NOW/
SELECT variable_value
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_load_status';
--enable_warnings
DROP TABLE ib_bp_test;
SET GLOBAL innodb_buffer_pool_dump_pct=default;
--echo #
--echo # Bug#21371070 [ERROR] INNODB: CANNOT ALLOCATE 0 BYTES: SUCCESS
--echo #
--let $file = `SELECT CONCAT(@@datadir, @@global.innodb_buffer_pool_filename)`
# Remove the buffer pool file that exists already
--error 0,1
--remove_file $file
# Create an empty buffer pool file
write_file $file;
EOF
SET GLOBAL innodb_buffer_pool_load_now = ON;

1
mysql-test/suite/innodb/t/innodb_buffer_pool_resize_debug.opt Normal file
View File

@ -0,0 +1 @@
--innodb-buffer-pool-size=8M --innodb-buffer-pool-chunk-size=2M

241
mysql-test/suite/innodb/t/innodb_buffer_pool_resize_debug.test Normal file
View File

@ -0,0 +1,241 @@
#
# WL6117 : Resize the InnoDB Buffer Pool Online
# (concurrent sql; allocation fail;)
#
--source include/have_innodb.inc
--source include/have_debug.inc
--disable_query_log
set @old_innodb_buffer_pool_size = @@innodb_buffer_pool_size;
set @old_innodb_file_per_table = @@innodb_file_per_table;
set @old_innodb_thread_concurrency = @@innodb_thread_concurrency;
set @old_innodb_thread_sleep_delay = @@innodb_thread_sleep_delay;
set @old_innodb_disable_resize = @@innodb_disable_resize_buffer_pool_debug;
set global innodb_disable_resize_buffer_pool_debug = OFF;
--enable_query_log
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
let $wait_timeout = 180;
set global innodb_file_per_table=ON;
set global innodb_thread_concurrency=20;
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
connect (con3,localhost,root,,);
connect (con4,localhost,root,,);
connect (con5,localhost,root,,);
connect (con6,localhost,root,,);
connect (con7,localhost,root,,);
connect (con8,localhost,root,,);
create table t2 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t2 (c1, c2) values (1, 1);
create table t3 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t3 (c1, c2) values (1, 1);
create table t4 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t4 (c1, c2) values (1, 1);
create table t5 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t5 (c1, c2) values (1, 1);
create table t6 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t6 (c1, c2) values (1, 1);
create database test2;
create table test2.t7 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into test2.t7 (c1, c2) values (1, 1);
drop table test2.t7;
connection con1;
set @save_dbug=@@global.debug_dbug;
set global debug_dbug="+d,ib_buf_pool_resize_wait_before_resize";
set global innodb_buffer_pool_size = 12*1024*1024;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 30) = 'Latching whole of buffer pool.'
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
# trying to update innodb_buffer_pool_size
--error ER_WRONG_ARGUMENTS
set global innodb_buffer_pool_size = 8*1024*1024;
select @@global.innodb_buffer_pool_size;
# trying to control adaptive hash index
select @@global.innodb_adaptive_hash_index;
set global innodb_adaptive_hash_index = ON;
select @@global.innodb_adaptive_hash_index;
set global innodb_adaptive_hash_index = OFF;
select @@global.innodb_adaptive_hash_index;
# - create table
--send create table t1 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB
connection con2;
# - analyze table
--send analyze table t2
connection con3;
# - alter table ... algorithm=inplace
--send alter table t3 algorithm=inplace, add index idx (c1)
connection con4;
# - alter table ... rename to
--send alter table t4 rename to t0
connection con5;
# - drop table
--send drop table t5
connection con6;
# - alter table ... discard tablespace
--send alter table t6 discard tablespace
connection con7;
# - drop database
--send drop database test2
connection con8;
# information schema INNODB_BUFFER_PAGE
--send select count(*) > 0 from information_schema.innodb_buffer_page
connection default;
set global debug_dbug=@save_dbug;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
connection con1;
--reap
connection con2;
--reap
connection con3;
--reap
connection con4;
--reap
connection con5;
--reap
connection con6;
--reap
connection con7;
--reap
connection con8;
--reap
connection default;
disconnect con3;
disconnect con4;
disconnect con5;
disconnect con6;
disconnect con7;
disconnect con8;
disconnect con1;
disconnect con2;
# fails to allocate new chunks
call mtr.add_suppression("\\[ERROR\\] InnoDB: buffer pool 0 : failed to allocate new memory.");
connection default;
set global debug_dbug="+d,ib_buf_chunk_init_fails";
set global innodb_buffer_pool_size = 16*1024*1024;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 27) = 'Resizing buffer pool failed'
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
set global debug_dbug=@save_dbug;
# can be used as usual, even if failed to allocate
create table t8 (c1 int not null primary key, c2 int not null default 0) engine=InnoDB;
insert into t8 (c1, c2) values (1, 1);
drop table t8;
drop table t1;
drop table t2;
drop table t3;
drop table t0;
drop table t6;
--disable_query_log
set global innodb_buffer_pool_size = @old_innodb_buffer_pool_size;
set global innodb_file_per_table = @old_innodb_file_per_table;
set global innodb_thread_concurrency = @old_innodb_thread_concurrency;
set global innodb_thread_sleep_delay = @old_innodb_thread_sleep_delay;
set global innodb_disable_resize_buffer_pool_debug = @old_innodb_disable_resize;
--enable_query_log
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
# Wait till all disconnects are completed]
--source include/wait_until_count_sessions.inc
--echo #
--echo # BUG#23590280 NO WARNING WHEN REDUCING INNODB_BUFFER_POOL_SIZE INSIZE THE FIRST CHUNK
--echo #
SET @save_disable = @@GLOBAL.innodb_disable_background_merge;
SET GLOBAL innodb_disable_background_merge = ON;
set @old_innodb_disable_resize = @@innodb_disable_resize_buffer_pool_debug;
set global innodb_disable_resize_buffer_pool_debug = OFF;
set @before_innodb_buffer_pool_size = @@innodb_buffer_pool_size;
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size;
let $wait_timeout = 60;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 19) = 'Size did not change'
FROM information_schema.global_status
WHERE VARIABLE_NAME = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size * 2;
let $wait_timeout = 60;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 9) = 'Completed'
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size;
let $wait_timeout = 60;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 9) = 'Completed'
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
set global innodb_buffer_pool_size=@before_innodb_buffer_pool_size;
let $wait_timeout = 60;
let $wait_condition =
SELECT SUBSTR(variable_value, 1, 19) = 'Size did not change'
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_RESIZE_STATUS';
--source include/wait_condition.inc
SET GLOBAL innodb_disable_resize_buffer_pool_debug = @old_innodb_disable_resize;
SET GLOBAL innodb_disable_background_merge = @save_disable;