mariadb/mysql-test/t/innodb_mysql_lock.test

-- source include/have_innodb.inc

# Save the initial number of concurrent sessions.
--source include/count_sessions.inc

--echo #
--echo # Bug #22876 Four-way deadlock
--echo #

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
connect (con3,localhost,root,,);

--echo # Connection 1
connection con1;
set @@autocommit=0;
CREATE TABLE t1(s1 INT UNIQUE) ENGINE=innodb;
INSERT INTO t1 VALUES (1);

--echo # Connection 2
connection con2;
set @@autocommit=0;
INSERT INTO t1 VALUES (2);
--send INSERT INTO t1 VALUES (1)

--echo # Connection 3
connection con3;
set @@autocommit=0;
--send DROP TABLE t1

--echo # Connection 1
connection con1;
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE info = "INSERT INTO t1 VALUES (1)" and 
  state = "update";
--source include/wait_condition.inc
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE info = "DROP TABLE t1" and 
  state = "Waiting for table metadata lock";
--source include/wait_condition.inc
--echo # Connection 1 is now holding the lock.
--echo # Issuing insert from connection 1 while connection 2&3 
--echo # is waiting for the lock should give a deadlock error.
--error ER_LOCK_DEADLOCK
INSERT INTO t1 VALUES (2);

--echo # Cleanup
connection con2;
--reap
commit;
set @@autocommit=1;
connection con1;
commit;
set @@autocommit=1;
connection con3;
--reap
set @@autocommit=1;
connection default;

disconnect con1;
disconnect con3;


--echo #
--echo # Test for bug #37346 "innodb does not detect deadlock between update
--echo #                      and alter table".
--echo #
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (c1 int primary key, c2 int, c3 int) engine=InnoDB;
insert into t1 values (1,1,0),(2,2,0),(3,3,0),(4,4,0),(5,5,0);
begin;
--echo # Run statement which acquires X-lock on one of table's rows.
update t1 set c3=c3+1 where c2=3;

--echo #
--echo # Switching to connection 'con37346'.
connect (con37346,localhost,root,,test,,);
connection con37346;
--echo # The below ALTER TABLE statement should wait till transaction
--echo # in connection 'default' is complete and then succeed.
--echo # It should not deadlock or fail with ER_LOCK_DEADLOCK error.
--echo # Sending:
--send alter table t1 add column c4 int;

--echo #
--echo # Switching to connection 'default'.
connection default;
--echo # Wait until the above ALTER TABLE gets blocked because this
--echo # connection holds SW metadata lock on table to be altered.
let $wait_condition=
  select count(*) = 1 from information_schema.processlist
  where state = "Waiting for table metadata lock" and
        info = "alter table t1 add column c4 int";
--source include/wait_condition.inc

--echo # The below statement should succeed. It should not
--echo # deadlock or end with ER_LOCK_DEADLOCK error.
update t1 set c3=c3+1 where c2=4;

--echo # Unblock ALTER TABLE by committing transaction.
commit;

--echo #
--echo # Switching to connection 'con37346'.
connection con37346;
--echo # Reaping ALTER TABLE.
--reap

--echo #
--echo # Switching to connection 'default'.
connection default;
disconnect con37346;
drop table t1;


--echo #
--echo # Bug #42147 Concurrent DML and LOCK TABLE ... READ for InnoDB 
--echo #            table cause warnings in errlog
--echo #

--echo #
--echo # Note that this test for now relies on a global suppression of 
--echo # the warning "Found lock of type 6 that is write and read locked"
--echo # This suppression rule can be removed once Bug#42147 is properly
--echo # fixed. See bug page for more info.
--echo #

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1 (i INT) engine= innodb;

--echo # Connection 2
--echo # Get user-level lock
connection con2;
SELECT get_lock('bug42147_lock', 60);

--echo # Connection 1
connection default;
--send INSERT INTO t1 SELECT get_lock('bug42147_lock', 60)

--echo # Connection 2
connection con2;
let $wait_condition=
  SELECT COUNT(*) > 0 FROM information_schema.processlist
  WHERE state = 'User lock' 
  AND info = 'INSERT INTO t1 SELECT get_lock(\'bug42147_lock\', 60)';
--source include/wait_condition.inc
LOCK TABLES t1 READ;
SELECT release_lock('bug42147_lock');

--echo # Connection 1
connection default;
--reap

--echo # Connection 2
connection con2;
UNLOCK TABLES;

--echo # Connection 1
connection default;
disconnect con2;
DROP TABLE t1;


--echo #
--echo # Bug#53798 OPTIMIZE TABLE breaks repeatable read
--echo #

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1 (a INT) engine=innodb;
INSERT INTO t1 VALUES (1), (2), (3);

--echo # Connection con1
connect (con1, localhost, root);
START TRANSACTION WITH CONSISTENT SNAPSHOT;
SELECT * FROM t1;

--echo # Connection default
connection default;
--echo # This should block
--echo # Sending:
--send OPTIMIZE TABLE t1

--echo # Connection con1
connection con1;
let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist
  WHERE state='Waiting for table metadata lock' AND info='OPTIMIZE TABLE t1';
--source include/wait_condition.inc
SELECT * FROM t1;
COMMIT;

--echo # Connection default
connection default;
--echo # Reaping OPTIMIZE TABLE t1
--reap
disconnect con1;
DROP TABLE t1;


--echo #
--echo # Bug#49891 View DDL breaks REPEATABLE READ
--echo #

--disable_warnings
DROP TABLE IF EXISTS t1, t2;
DROP VIEW IF EXISTS v2;
--enable_warnings

CREATE TABLE t1 ( f1 INTEGER ) ENGINE = innodb;
CREATE TABLE t2 ( f1 INTEGER );
CREATE VIEW v1 AS SELECT 1 FROM t1;

connect (con2, localhost, root);
connect (con3, localhost, root);

--echo # Connection con3
connection con3;
LOCK TABLE t1 WRITE;

--echo # Connection default
connection default;
START TRANSACTION;
# This should block due to t1 being locked.
--echo # Sending:
--send SELECT * FROM v1

--echo # Connection con2
connection con2;
--echo # Waiting for 'SELECT * FROM v1' to sync in.
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND info = "SELECT * FROM v1";
--source include/wait_condition.inc
# This should block due to v1 being locked.
--echo # Sending:
--send ALTER VIEW v1 AS SELECT 2 FROM t2

--echo # Connection con3
connection con3;
--echo # Waiting for 'ALTER VIEW v1 AS SELECT 2 FROM t2' to sync in.
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "ALTER VIEW v1 AS SELECT 2 FROM t2";
--source include/wait_condition.inc
# Unlock t1 allowing SELECT * FROM v1 to proceed.
UNLOCK TABLES;

--echo # Connection default;
connection default;
--echo # Reaping: SELECT * FROM v1
--reap
SELECT * FROM v1;
COMMIT;

--echo # Connection con2
connection con2;
--echo # Reaping: ALTER VIEW v1 AS SELECT 2 FROM t2
--reap

--echo # Connection default
connection default;
DROP TABLE t1, t2;
DROP VIEW v1;
disconnect con2;
disconnect con3;


# Check that all connections opened by test cases in this file are really
# gone so execution of other tests won't be affected by their presence.
--source include/wait_until_count_sessions.inc