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#
# Basic test for innodb_buffer_pool_load_now
#
-- source include/have_innodb.inc
# Check the default value
SET @orig = @@global.innodb_buffer_pool_load_now;
SELECT @orig;
let $old_status= `SELECT variable_value FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_dump_status'`;
# A previous test could have run buffer pool dump already;
# in this case we want to make sure that the current time is different
# from the timestamp in the status variable.
# We should have had a smart wait condition here, like the commented one below,
# but we can't because of MDEV-9867, so there will be just sleep instead.
# And it might be not enough to sleep one second, so we'll have to sleep two.
# let $wait_condition =
# SELECT TRIM(SUBSTR('$old_status', -8)) != DATE_FORMAT(CURTIME(), '%k:%i:%s');
# -- source include/wait_condition.inc
if (`SELECT variable_value LIKE '%dump completed at%' FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_buffer_pool_dump_status'`)
{
-- sleep 2
}
# Do the dump
SET GLOBAL innodb_buffer_pool_dump_now = ON;
# Wait for the dump to complete
let $wait_condition =
SELECT variable_value != '$old_status'
AND 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';
-- source include/wait_condition.inc
# Confirm the file is really created
-- let $file = `SELECT CONCAT(@@datadir, @@global.innodb_buffer_pool_filename)`
-- file_exists $file
# Load the dump
SET GLOBAL innodb_buffer_pool_load_now = ON;
# Wait for the load to complete
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';
-- source include/wait_condition.inc
# Show the status, interesting if the above timed out
-- 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';
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