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--source include/have_innodb.inc
--source include/count_sessions.inc
CREATE TABLE `t`(`id` INT, PRIMARY KEY(`id`)) ENGINE=InnoDB STATS_PERSISTENT=0;
INSERT INTO t VALUES (1);
SET GLOBAL innodb_monitor_disable="lock_row_lock_time";
SET GLOBAL innodb_monitor_disable="lock_row_lock_time_max";
SET GLOBAL innodb_monitor_reset_all='lock_row_lock_time';
SET GLOBAL innodb_monitor_reset_all='lock_row_lock_time_max';
SET GLOBAL innodb_monitor_enable="lock_row_lock_time";
SET GLOBAL innodb_monitor_enable="lock_row_lock_time_max";
BEGIN;
SELECT * FROM t FOR UPDATE;
# We can't predict (innodb/lock)_row_lock_time_avg value, because it's counted
# as the whole waiting time divided by the amount of waits. The
# corresponding counters in lock_sys can't be reset with any query.
--disable_result_log
SELECT @innodb_row_lock_time_before := variable_value
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_row_lock_time';
--enable_result_log
--connect(con1,localhost,root,,)
SET innodb_lock_wait_timeout = 1;
--error ER_LOCK_WAIT_TIMEOUT
SELECT * FROM t FOR UPDATE;
--disconnect con1
--connection default
COMMIT;
SELECT variable_value - @innodb_row_lock_time_before > 100
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_row_lock_time';
# We can't use 'variable_value - @innodb_row_lock_time_max_before' trick for
# innodb_row_lock_time_max, because we can't reset it, and we don't know the
# initial value at the moment of the test execution.
SELECT variable_value > 100
FROM information_schema.global_status
WHERE LOWER(variable_name) = 'innodb_row_lock_time_max';
SELECT count_reset > 100
FROM INFORMATION_SCHEMA.INNODB_METRICS
WHERE NAME='lock_row_lock_time';
SELECT count_reset > 100
FROM INFORMATION_SCHEMA.INNODB_METRICS
WHERE NAME='lock_row_lock_time_max';
DROP TABLE t;
--disable_warnings
SET GLOBAL innodb_monitor_enable=default;
SET GLOBAL innodb_monitor_disable=default;
SET GLOBAL innodb_monitor_reset_all=default;
--enable_warnings
--source include/wait_until_count_sessions.inc
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