mariadb/mysql-test/t/max_statement_time.test

#
# Test behavior of MAX_STATEMENT_TIME.
#

--source include/not_embedded.inc
--source include/have_innodb.inc

--echo
--echo # Test the MAX_STATEMENT_TIME option.
--echo

SET @@MAX_STATEMENT_TIME=2;
select @@max_statement_time;
SELECT SLEEP(1);
SELECT SLEEP(3);
SET @@MAX_STATEMENT_TIME=0;
SELECT SLEEP(1);
SHOW STATUS LIKE "max_statement_time_exceeded";

CREATE TABLE t1 (a INT, b VARCHAR(300)) engine=myisam;

INSERT INTO t1 VALUES (1, 'string');

--disable_result_log
--disable_query_log

SET @@MAX_STATEMENT_TIME=2;

SET @@MAX_STATEMENT_TIME=0.1;
WHILE (! $mysql_errno)
{
  SET @@MAX_STATEMENT_TIME=0;
  INSERT INTO t1 SELECT * FROM t1;
  SET @@MAX_STATEMENT_TIME=0.1;
  --error 0,ER_STATEMENT_TIMEOUT
  SELECT COUNT(*) FROM t1 WHERE b LIKE '%z%';
}
SET @@MAX_STATEMENT_TIME=0;

--enable_query_log
--enable_result_log

eval SELECT $mysql_errno;

--echo
--echo # Test the MAX_STATEMENT_TIME option with SF (should have no effect).
--echo

DELIMITER |;

CREATE PROCEDURE p1()
BEGIN
  declare tmp int;
  SET @@MAX_STATEMENT_TIME=0.0001;
  SELECT COUNT(*) INTO tmp FROM t1 WHERE b LIKE '%z%';
  SET @@MAX_STATEMENT_TIME=0;
END|

CREATE PROCEDURE p2()
BEGIN
  SET @@MAX_STATEMENT_TIME=5;
END|

DELIMITER ;|

SELECT @@MAX_STATEMENT_TIME;
CALL p1();
CALL p2();
SELECT @@MAX_STATEMENT_TIME;
SET @@MAX_STATEMENT_TIME=0;

DROP PROCEDURE p1;
DROP PROCEDURE p2;
DROP TABLE t1;

--echo
--echo # MAX_STATEMENT_TIME account resource
--echo

GRANT USAGE ON *.* TO user1@localhost WITH MAX_STATEMENT_TIME 1.005;

--echo # con1
connect(con1,localhost,user1,,test,,);
SELECT @@max_statement_time;
disconnect con1;

--echo # restart and reconnect
connection default;
source include/restart_mysqld.inc;

set @global.userstat=1;
connect(con1,localhost,user1,,test,,);
SELECT @@global.max_statement_time,@@session.max_statement_time;
select sleep(100);
SHOW STATUS LIKE "max_statement_time_exceeded";
disconnect con1;

connection default;
show grants for user1@localhost;
--disable_parsing
select max_user_timeouts from information_schema.user_statistics where user="user1";
--enable_parsing

set @global.userstat=0;
DROP USER user1@localhost;

--echo
--echo # MAX_STATEMENT_TIME status variables.
--echo

flush status;

SET @@max_statement_time=0;
SELECT CONVERT(VARIABLE_VALUE, UNSIGNED) INTO @time_exceeded
  FROM INFORMATION_SCHEMA.GLOBAL_STATUS
  WHERE VARIABLE_NAME = 'max_statement_time_exceeded';

SET @@max_statement_time=0.5;
SELECT SLEEP(2);
SHOW STATUS LIKE '%timeout%';
SET @@max_statement_time=0;

--echo # Ensure that the counters for:
--echo # - statements that exceeded their maximum execution time
--echo # are incremented.

SELECT 1 AS STATUS FROM INFORMATION_SCHEMA.GLOBAL_STATUS
  WHERE VARIABLE_NAME = 'max_statement_time_exceeded'
        AND CONVERT(VARIABLE_VALUE, UNSIGNED) > @time_exceeded;

--echo
--echo # Check that the appropriate error status is set.
--echo

CREATE TABLE t1 (a INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);

START TRANSACTION;
SELECT * FROM t1 FOR UPDATE;

connect (con1,localhost,root,,test,,);
SET @@SESSION.max_statement_time = 0.5;
--error ER_STATEMENT_TIMEOUT
UPDATE t1 SET a = 2;
SHOW WARNINGS;
disconnect con1;

connection default;
ROLLBACK;
DROP TABLE t1;

--echo
--echo # Test interaction with lock waits.
--echo

CREATE TABLE t1 (a INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);

connect (con1,localhost,root,,test,,);
SET @@SESSION.max_statement_time= 0.5;

connection default;
LOCK TABLES t1 WRITE;

connection con1;
SELECT @@SESSION.max_statement_time;
--error ER_STATEMENT_TIMEOUT
LOCK TABLES t1 READ;

connection default;
UNLOCK TABLES;
BEGIN;
SELECT * FROM t1;

connection con1;
--error ER_STATEMENT_TIMEOUT
ALTER TABLE t1 ADD COLUMN b INT;

connection default;
ROLLBACK;
SELECT GET_LOCK('lock', 1);

connection con1;
SELECT GET_LOCK('lock', 1);

disconnect con1;
connection default;
SELECT RELEASE_LOCK('lock');
DROP TABLE t1;