1 files changed, 95 insertions, 3 deletions

diff --git a/mysql-test/t/schema.test b/mysql-test/t/schema.test
index f106b9e4865..e3592f39780 100644
--- a/mysql-test/t/schema.test
+++ b/mysql-test/t/schema.test
@@ -23,6 +23,7 @@ drop schema foo;
 
 --disable_warnings
 DROP SCHEMA IF EXISTS schema1;
+DROP SCHEMA IF EXISTS schema2;
 --enable_warnings
 
 connect(con2, localhost, root);
@@ -31,6 +32,7 @@ connect(con2, localhost, root);
 connection default;
 
 CREATE SCHEMA schema1;
+CREATE SCHEMA schema2;
 CREATE TABLE schema1.t1 (a INT);
 
 SET autocommit= FALSE;
@@ -46,9 +48,7 @@ let $wait_condition= SELECT COUNT(*)= 1 FROM information_schema.processlist
                      WHERE state= 'Waiting for table' 
                      AND info='DROP SCHEMA schema1';
 --source include/wait_condition.inc
-# Listing the error twice to prevent result diffences based on filename
---error 1,1
-ALTER SCHEMA schema1 DEFAULT CHARACTER SET utf8;
+ALTER SCHEMA schema2 DEFAULT CHARACTER SET utf8;
 SET autocommit= TRUE;
 
 --echo # Connection 2
@@ -57,6 +57,7 @@ connection con2;
 
 --echo # Connection default
 connection default;
+DROP SCHEMA schema2;
 disconnect con2;
 
 
@@ -102,6 +103,97 @@ connection con2;
 connection default;
 disconnect con2;
 
+
+--echo #
+--echo # Bug#54360 Deadlock DROP/ALTER/CREATE DATABASE with open HANDLER
+--echo #
+
+CREATE DATABASE db1;
+CREATE TABLE db1.t1 (a INT);
+INSERT INTO db1.t1 VALUES (1), (2);
+
+--echo # Connection con1
+connect (con1, localhost, root);
+HANDLER db1.t1 OPEN;
+
+--echo # Connection default
+connection default;
+--echo # Sending:
+--send DROP DATABASE db1
+
+--echo # Connection con2
+connect (con2, localhost, root);
+let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist
+  WHERE state='Waiting for table' AND info='DROP DATABASE db1';
+--source include/wait_condition.inc
+
+--echo # Connection con1
+connection con1;
+# All these statements before resulted in deadlock.
+CREATE DATABASE db2;
+ALTER DATABASE db2 DEFAULT CHARACTER SET utf8;
+DROP DATABASE db2;
+
+--echo # Connection default
+connection default;
+--echo # Reaping: DROP DATABASE db1
+--reap
+disconnect con1;
+disconnect con2;
+
+
+--echo #
+--echo # Tests for increased CREATE/ALTER/DROP DATABASE concurrency with
+--echo # database name locks.
+--echo # 
+
+--disable_warnings
+DROP DATABASE IF EXISTS db1;
+DROP DATABASE IF EXISTS db2;
+--enable_warnings
+
+connect (con2, localhost, root);
+connect (con3, localhost, root);
+
+--echo # Connection default
+connection default;
+CREATE DATABASE db1;
+CREATE TABLE db1.t1 (id INT);
+START TRANSACTION;
+INSERT INTO db1.t1 VALUES (1);
+
+--echo # Connection 2
+connection con2;
+--echo # DROP DATABASE should block due to the active transaction
+--echo # Sending:
+--send DROP DATABASE db1
+
+--echo # Connection 3
+connection con3;
+let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist 
+  WHERE state='Waiting for table' and info='DROP DATABASE db1';
+--source include/wait_condition.inc
+--echo # But it should still be possible to CREATE/ALTER/DROP other databases.
+CREATE DATABASE db2;
+ALTER DATABASE db2 DEFAULT CHARACTER SET utf8;
+DROP DATABASE db2;
+
+--echo # Connection default
+connection default;
+--echo # End the transaction so DROP DATABASE db1 can continue
+COMMIT;
+
+--echo # Connection 2
+connection con2;
+--echo # Reaping: DROP DATABASE db1
+--reap
+
+--echo # Connection default;
+connection default;
+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