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Revert "MDEV-30473 : Do not allow GET_LOCK() / RELEASE_LOCK() in cluster"

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This reverts commit b05218e08f.
This commit is contained in:
Sergei Golubchik 2023-06-03 10:35:59 +02:00
parent 0fd54c9892
commit eb472f77e3
4 changed files with 97 additions and 0 deletions
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23
mysql-test/suite/galera/r/MDEV-24143.result Normal file
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connection node_2;
connection node_1;
CREATE TABLE t1 (c1 BIGINT NOT NULL PRIMARY KEY, c2 BINARY (10), c3 DATETIME);
SELECT get_lock ('test2', 0);
get_lock ('test2', 0)
1
DROP TABLE t1;
CREATE TABLE t1 (c1 SMALLINT NOT NULL AUTO_INCREMENT PRIMARY KEY);
INSERT INTO t1 VALUES (1);
SET SESSION wsrep_trx_fragment_size=10;
SET SESSION autocommit=0;
SELECT * FROM t1 WHERE c1 <=0 ORDER BY c1 DESC;
c1
INSERT INTO t1 VALUES (4),(3),(1),(2);
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
CREATE TABLE t1 (pk INT PRIMARY KEY, b INT) ENGINE=SEQUENCE;
ERROR 42S01: Table 't1' already exists
ALTER TABLE t1 DROP COLUMN c2;
ERROR 42000: Can't DROP COLUMN `c2`; check that it exists
SELECT get_lock ('test', 1.5);
get_lock ('test', 1.5)
1
DROP TABLE t1;

18
mysql-test/suite/galera/r/galera_bf_abort_get_lock.result Normal file
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connection node_2;
connection node_1;
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB;
connection node_2a;
SELECT GET_LOCK("foo", 1000);
GET_LOCK("foo", 1000)
1
connection node_2;
SET AUTOCOMMIT=OFF;
INSERT INTO t1 VALUES (1);
SELECT GET_LOCK("foo", 1000);;
connection node_1;
INSERT INTO t1 VALUES (1);
connection node_2;
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
wsrep_local_aborts_increment
1
DROP TABLE t1;

20
mysql-test/suite/galera/t/MDEV-24143.test Normal file
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--source include/galera_cluster.inc
--source include/have_sequence.inc
CREATE TABLE t1 (c1 BIGINT NOT NULL PRIMARY KEY, c2 BINARY (10), c3 DATETIME);
SELECT get_lock ('test2', 0);
DROP TABLE t1;
CREATE TABLE t1 (c1 SMALLINT NOT NULL AUTO_INCREMENT PRIMARY KEY);
INSERT INTO t1 VALUES (1);
SET SESSION wsrep_trx_fragment_size=10;
SET SESSION autocommit=0;
SELECT * FROM t1 WHERE c1 <=0 ORDER BY c1 DESC;
--error ER_LOCK_DEADLOCK
INSERT INTO t1 VALUES (4),(3),(1),(2);
--error ER_TABLE_EXISTS_ERROR
CREATE TABLE t1 (pk INT PRIMARY KEY, b INT) ENGINE=SEQUENCE;
--error ER_CANT_DROP_FIELD_OR_KEY
ALTER TABLE t1 DROP COLUMN c2;
SELECT get_lock ('test', 1.5);
DROP TABLE t1;

36
mysql-test/suite/galera/t/galera_bf_abort_get_lock.test Normal file
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--source include/galera_cluster.inc
--source include/have_innodb.inc
#
# Test a local transaction being aborted by a slave one while it is running a GET_LOCK()
#
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB;
--let $galera_connection_name = node_2a
--let $galera_server_number = 2
--source include/galera_connect.inc
--connection node_2a
SELECT GET_LOCK("foo", 1000);
--connection node_2
SET AUTOCOMMIT=OFF;
--let $wsrep_local_bf_aborts_before = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_bf_aborts'`
INSERT INTO t1 VALUES (1);
--send SELECT GET_LOCK("foo", 1000);
--connection node_1
INSERT INTO t1 VALUES (1);
--connection node_2
--error ER_LOCK_DEADLOCK
--reap
--let $wsrep_local_bf_aborts_after = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_bf_aborts'`
# Check that wsrep_local_bf_aborts has been incremented by exactly 1
--disable_query_log
--eval SELECT $wsrep_local_bf_aborts_after - $wsrep_local_bf_aborts_before = 1 AS wsrep_local_aborts_increment;
--enable_query_log
DROP TABLE t1;