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#
# Basic test for innodb_buffer_pool_dump_now
#
-- source include/have_innodb.inc
# Check the default value
SELECT @@global.innodb_buffer_pool_dump_now;
-- let $file = `SELECT CONCAT(@@datadir, @@global.innodb_buffer_pool_filename)`
-- error 0,1
-- remove_file $file
SELECT variable_value INTO @old_dump_status 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,
# let $wait_condition =
# SELECT TRIM(SUBSTR('$old_status', -8)) != DATE_FORMAT(CURTIME(), '%k:%i:%s');
# -- source include/wait_condition.inc
# ... 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.
if (`SELECT variable_value LIKE '%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;
# Should always be OFF
SELECT @@global.innodb_buffer_pool_dump_now;
# Wait for the dump to complete
let $wait_condition =
SELECT variable_value != @old_dump_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 that the dump file has been created
-- file_exists $file
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