From c519aa3d7aea1afb7754ccf70aa5b276ff5fbf87 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Lindstr=C3=B6m?= <jan.lindstrom@mariadb.com>
Date: Tue, 15 Mar 2022 12:48:29 +0200
Subject: [PATCH] MDEV-24143 : Galera nodes "randomly" crashing in
 Item_func_release_lock::val_int

Fixed on MDEV-27713. Added additional test case.
---
 mysql-test/suite/galera/r/MDEV-24143.result | 23 +++++++++++++++++++++
 mysql-test/suite/galera/t/MDEV-24143.test   | 20 ++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 mysql-test/suite/galera/r/MDEV-24143.result
 create mode 100644 mysql-test/suite/galera/t/MDEV-24143.test

diff --git a/mysql-test/suite/galera/r/MDEV-24143.result b/mysql-test/suite/galera/r/MDEV-24143.result
new file mode 100644
index 00000000000..860d8a35834
--- /dev/null
+++ b/mysql-test/suite/galera/r/MDEV-24143.result
@@ -0,0 +1,23 @@
+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;
diff --git a/mysql-test/suite/galera/t/MDEV-24143.test b/mysql-test/suite/galera/t/MDEV-24143.test
new file mode 100644
index 00000000000..e58f147cb7c
--- /dev/null
+++ b/mysql-test/suite/galera/t/MDEV-24143.test
@@ -0,0 +1,20 @@
+--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;
+