path: root/mysql-test/main/innodb_mysql_lock.test

--source include/have_metadata_lock_info.inc
-- source include/have_innodb.inc

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

set @old_innodb_lock_wait_timeout=@@global.innodb_lock_wait_timeout;
set global innodb_lock_wait_timeout=300;
set session innodb_lock_wait_timeout=300;

call mtr.add_suppression("Deadlock found when trying to get lock; try restarting transaction");

--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,,);

connection con1;
set @@autocommit=0;
CREATE TABLE t1(s1 INT UNIQUE) ENGINE=innodb;
# MDEV-515 takes X-lock on the table for the first insert.
# So concurrent DML won't happen on the table
INSERT INTO t1 VALUES (100);
COMMIT;

INSERT INTO t1 VALUES (1);

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

connection con3;
set @@autocommit=0;
--send DROP TABLE t1

connection con1;
--echo # Waiting for until transaction will be locked inside innodb subsystem
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.innodb_trx
  WHERE trx_query = 'INSERT INTO t1 VALUES (1)' AND
  trx_operation_state = 'inserting' AND
  trx_state = 'LOCK WAIT';
--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 con2;
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 #
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 #
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 #
connection con37346;
--echo # Reaping ALTER TABLE.
--reap

--echo #
connection default;
disconnect con37346;
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);

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

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

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;

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);

connection con3;
LOCK TABLE t1 WRITE;

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

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

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;

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

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

connection default;
DROP TABLE t1, t2;
DROP VIEW v1;
disconnect con2;
disconnect con3;


--echo #
--echo # Bug#11815600 [ERROR] INNODB COULD NOT FIND INDEX PRIMARY
--echo #              KEY NO 0 FOR TABLE IN ERROR LOG 
--echo #

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

--connect (con1,localhost,root)

connection default;
CREATE TABLE t1 (id INT PRIMARY KEY, value INT) ENGINE = InnoDB;
INSERT INTO t1 VALUES (1, 12345);
START TRANSACTION;
SELECT * FROM t1;

--connection con1
SET lock_wait_timeout=1;
# Test with two timeouts, as the first version of this patch
# only worked with one timeout.
--error ER_LOCK_WAIT_TIMEOUT
ALTER TABLE t1 ADD INDEX idx(value);
--error ER_LOCK_WAIT_TIMEOUT
ALTER TABLE t1 ADD INDEX idx(value);

--connection default
SELECT * FROM t1;
COMMIT;
DROP TABLE t1;
disconnect con1;


# 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

set global innodb_lock_wait_timeout=@old_innodb_lock_wait_timeout;