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81c88ab7cd
MyISAM tables no longer take transactional metadata locks unless there already is an active transaction.
163 lines
3.9 KiB
Text
163 lines
3.9 KiB
Text
#
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# Just a couple of tests to make sure that schema works.
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#
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# Drop mysqltest1 database, as it can left from the previous tests.
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#
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# Save the initial number of concurrent sessions.
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--source include/count_sessions.inc
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--source include/default_charset.inc
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create schema foo;
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show create schema foo;
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show schemas;
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drop schema foo;
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--echo #
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--echo # Bug #48940 MDL deadlocks against mysql_rm_db
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--echo #
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connect(con2, localhost, root);
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connection default;
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CREATE SCHEMA schema1;
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CREATE TABLE schema1.t1 (a INT);
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START TRANSACTION;
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INSERT INTO schema1.t1 VALUES (1);
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connection con2;
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--send DROP SCHEMA schema1
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connection default;
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let $wait_condition= SELECT COUNT(*)= 1 FROM information_schema.processlist
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WHERE state= 'Waiting for table metadata lock'
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AND info='DROP SCHEMA schema1';
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--source include/wait_condition.inc
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# Error 1 is from ALTER DATABASE when the database does not exist.
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# Listing the error twice to prevent result diffences based on filename.
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--error 1,1
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ALTER SCHEMA schema1 DEFAULT CHARACTER SET utf8;
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COMMIT;
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connection con2;
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--reap
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connection default;
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disconnect con2;
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--echo #
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--echo # Bug #49988 MDL deadlocks with mysql_create_db, reload_acl_and_cache
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--echo #
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connect (con2, localhost, root);
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connection default;
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CREATE SCHEMA schema1;
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CREATE TABLE schema1.t1 (id INT);
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LOCK TABLE schema1.t1 WRITE;
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connection con2;
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--send DROP SCHEMA schema1
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connection default;
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let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist
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WHERE state='Waiting for schema metadata lock' and info='DROP SCHEMA schema1';
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--source include/wait_condition.inc
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--echo # CREATE SCHEMA used to give a deadlock.
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--echo # Now we prohibit CREATE SCHEMA in LOCK TABLES mode.
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--error ER_LOCK_OR_ACTIVE_TRANSACTION
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CREATE SCHEMA IF NOT EXISTS schema1;
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--echo # UNLOCK TABLES so DROP SCHEMA can continue.
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UNLOCK TABLES;
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connection con2;
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--reap
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connection default;
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disconnect con2;
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--echo #
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--echo # Bug#54360 Deadlock DROP/ALTER/CREATE DATABASE with open HANDLER
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--echo #
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 (a INT);
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INSERT INTO db1.t1 VALUES (1), (2);
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connect (con1, localhost, root);
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HANDLER db1.t1 OPEN;
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connection default;
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--echo # Sending:
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--send DROP DATABASE db1
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connect (con2, localhost, root);
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let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist
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WHERE state='Waiting for table metadata lock' AND info='DROP DATABASE db1';
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--source include/wait_condition.inc
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connection con1;
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# All these statements before resulted in deadlock.
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CREATE DATABASE db2;
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ALTER DATABASE db2 DEFAULT CHARACTER SET utf8;
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DROP DATABASE db2;
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HANDLER t1 CLOSE;
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connection default;
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--echo # Reaping: DROP DATABASE db1
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--reap
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disconnect con1;
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disconnect con2;
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--echo #
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--echo # Tests for increased CREATE/ALTER/DROP DATABASE concurrency with
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--echo # database name locks.
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--echo #
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connect (con2, localhost, root);
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connect (con3, localhost, root);
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connection default;
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 (id INT);
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START TRANSACTION;
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INSERT INTO db1.t1 VALUES (1);
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connection con2;
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--echo # DROP DATABASE should block due to the active transaction
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--echo # Sending:
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--send DROP DATABASE db1
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connection con3;
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let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist
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WHERE state='Waiting for table metadata lock' and info='DROP DATABASE db1';
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--source include/wait_condition.inc
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--echo # But it should still be possible to CREATE/ALTER/DROP other databases.
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CREATE DATABASE db2;
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ALTER DATABASE db2 DEFAULT CHARACTER SET utf8;
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DROP DATABASE db2;
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connection default;
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--echo # End the transaction so DROP DATABASE db1 can continue
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COMMIT;
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connection con2;
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--echo # Reaping: DROP DATABASE db1
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--reap
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connection default;
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disconnect con2;
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disconnect con3;
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# Check that all connections opened by test cases in this file are really
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# gone so execution of other tests won't be affected by their presence.
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--source include/wait_until_count_sessions.inc
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