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384 lines
12 KiB
384 lines
12 KiB
#
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# Tests for various concurrency-related aspects of ALTER TABLE implemetation
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#
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# This test takes rather long time so let us run it only in --big-test mode
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--source include/big_test.inc
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# We are using some debug-only features in this test
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--source include/have_debug.inc
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# Also we are using SBR to check that statements are executed
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# in proper order.
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--source include/force_binlog_format_statement.inc
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--source include/count_sessions.inc
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#
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# Additional coverage for the main ALTER TABLE case
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#
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# We should be sure that table being altered is properly
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# locked during statement execution and in particular that
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# no DDL or DML statement can sneak in and get access to
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# the table when real operation has already taken place
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# but this fact has not been noted in binary log yet.
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--disable_warnings
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drop table if exists t1, t2, t3;
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--enable_warnings
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connect (addconroot, localhost, root,,);
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connect (addconroot2, localhost, root,,);
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connection default;
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create table t1 (i int);
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# We are going to check that statements are logged in correct order
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reset master;
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set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go';
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--send alter table t1 change i c char(10) default 'Test1';
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connection addconroot;
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# Wait until ALTER TABLE acquires metadata lock.
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set debug_sync='now WAIT_FOR parked';
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--send insert into t1 values ();
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connection addconroot2;
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# Wait until the above INSERT INTO t1 is blocked due to ALTER
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where state = "Waiting for table metadata lock" and
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info = "insert into t1 values ()";
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--source include/wait_condition.inc
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# Resume ALTER execution.
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set debug_sync='now SIGNAL go';
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connection default;
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--reap
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connection addconroot;
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--reap
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connection default;
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select * from t1;
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set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go';
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--send alter table t1 change c vc varchar(100) default 'Test2';
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connection addconroot;
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# Wait until ALTER TABLE acquires metadata lock.
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set debug_sync='now WAIT_FOR parked';
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--send rename table t1 to t2;
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connection addconroot2;
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# Wait until the above RENAME TABLE is blocked due to ALTER
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where state = "Waiting for table metadata lock" and
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info = "rename table t1 to t2";
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--source include/wait_condition.inc
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# Resume ALTER execution.
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set debug_sync='now SIGNAL go';
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connection default;
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--reap
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connection addconroot;
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--reap
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connection default;
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drop table t2;
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# And now tests for ALTER TABLE with RENAME clause. In this
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# case target table name should be properly locked as well.
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create table t1 (i int);
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set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go';
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--send alter table t1 change i c char(10) default 'Test3', rename to t2;
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connection addconroot;
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# Wait until ALTER TABLE acquires metadata lock.
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set debug_sync='now WAIT_FOR parked';
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--send insert into t2 values();
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connection addconroot2;
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# Wait until the above INSERT INTO t2 is blocked due to ALTER
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where state = "Waiting for table metadata lock" and
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info = "insert into t2 values()";
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--source include/wait_condition.inc
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# Resume ALTER execution.
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set debug_sync='now SIGNAL go';
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connection default;
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--reap
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connection addconroot;
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--reap
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connection default;
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select * from t2;
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--send alter table t2 change c vc varchar(100) default 'Test2', rename to t1;
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connection addconroot;
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connection default;
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--reap
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rename table t1 to t3;
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disconnect addconroot;
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disconnect addconroot2;
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drop table t3;
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set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go';
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set debug_sync='RESET';
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# Check that all statements were logged in correct order
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source include/show_binlog_events.inc;
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--echo End of 5.1 tests
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--source include/restore_default_binlog_format.inc
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--echo #
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--echo # Additional coverage for WL#7743 "New data dictionary: changes
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--echo # to DDL-related parts of SE API".
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--echo #
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--echo # Killed ALTER TABLE on temporary table sometimes led to assertion
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--echo # failure on connection close.
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--enable_connect_log
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--connect (con1, localhost, root,,)
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create temporary table t1 (i int) engine=innodb;
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set debug= "+d,mysql_lock_tables_kill_query";
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--error ER_QUERY_INTERRUPTED
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alter table t1 add index (i);
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set debug= "-d,mysql_lock_tables_kill_query";
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--echo # The below disconnect should drop temporary table automagically.
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--disconnect con1
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--source include/wait_until_disconnected.inc
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connection default;
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--disable_connect_log
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--echo #
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--echo # Test coverage for new (since 8.0) behavior of ALTER TABLE RENAME
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--echo # under LOCK TABLES.
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--echo #
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--enable_connect_log
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connect (con1, localhost, root,,);
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SET @old_lock_wait_timeout= @@lock_wait_timeout;
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connection default;
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--echo #
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--echo # 1) Simple ALTER TABLE RENAME.
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--echo #
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--echo # 1.1) Successfull ALTER TABLE RENAME.
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--echo #
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CREATE TABLE t1 (i INT);
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 RENAME TO t2;
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--echo # Table is available under new name under LOCK TABLES.
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SELECT * FROM t2;
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connection con1;
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--echo # Access by new name from other connections should be blocked.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--echo # But not for old table name.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t1;
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connection default;
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UNLOCK TABLES;
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--echo #
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--echo # 1.2) ALTER TABLE RENAME in case when several tables are locked.
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--echo #
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CREATE TABLE t1 (i INT);
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LOCK TABLES t1 READ, t2 WRITE;
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ALTER TABLE t2 RENAME TO t3;
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--echo # Table t1 should be still locked, and t2 should be available as t3
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--echo # with correct lock type.
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SELECT * FROM t1;
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INSERT INTO t3 values (1);
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UNLOCK TABLES;
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--echo #
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--echo # 1.3) ALTER TABLE RENAME in case when same table locked more than once.
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--echo #
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LOCK TABLES t1 READ, t3 WRITE, t3 AS a WRITE, t3 AS b READ;
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ALTER TABLE t3 RENAME TO t4;
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--echo # Check that tables are locked under correct aliases and with modes.
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SELECT * FROM t4 AS a, t4 AS b;
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INSERT INTO t4 VALUES (2);
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DELETE a FROM t4 AS a, t4 AS b;
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--error ER_TABLE_NOT_LOCKED_FOR_WRITE
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DELETE b FROM t4 AS a, t4 AS b;
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UNLOCK TABLES;
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DROP TABLES t1, t4;
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--echo # 1.4) ALTER TABLE RENAME to different schema.
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--echo #
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CREATE TABLE t1 (i INT);
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CREATE DATABASE mysqltest;
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 RENAME TO mysqltest.t1;
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--echo # Table is available in new schema under LOCK TABLES.
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SELECT * FROM mysqltest.t1;
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connection con1;
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--echo # Access by new name from other connections should be blocked.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM mysqltest.t1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--echo # But not to old schema and table name.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t1;
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--echo # Also IX lock on new schema should be kept.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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ALTER DATABASE mysqltest CHARACTER SET latin1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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connection default;
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UNLOCK TABLES;
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DROP DATABASE mysqltest;
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--echo #
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--echo # 2) ALTER TABLE INPLACE with RENAME clause.
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--echo #
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--echo # 2.1) Successful ALTER TABLE INPLACE with RENAME clause.
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--echo #
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CREATE TABLE t1 (i INT);
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 ADD COLUMN j INT, RENAME TO t2, ALGORITHM=INPLACE;
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--echo # Table is available under new name under LOCK TABLES.
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SELECT * FROM t2;
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connection con1;
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--echo # Access by new name from other connections should be blocked.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--echo # But not for old table name.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t1;
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connection default;
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UNLOCK TABLES;
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--echo #
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--echo # 2.2) ALTER TABLE INPLACE with RENAME clause in case when several
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--echo # tables are locked.
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--echo #
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CREATE TABLE t1 (i INT);
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LOCK TABLES t1 READ, t2 WRITE;
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ALTER TABLE t2 ADD COLUMN k INT, RENAME TO t3, ALGORITHM=INPLACE;
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--echo # Table t1 should be still locked, and t2 should be available as t3
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--echo # with correct lock type.
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SELECT * FROM t1;
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INSERT INTO t3 values (1, 2, 3);
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UNLOCK TABLES;
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--echo #
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--echo # 2.3) ALTER TABLE INPLACE with RENAME clause in case when same table
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--echo # locked more than once.
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--echo #
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LOCK TABLES t1 READ, t3 WRITE, t3 AS a WRITE, t3 AS b READ;
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ALTER TABLE t3 ADD COLUMN l INT, RENAME TO t4, ALGORITHM=INPLACE;
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--echo # Check that tables are locked under correct aliases and with modes.
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SELECT * FROM t4 AS a, t4 AS b;
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INSERT INTO t4 VALUES (2, 3, 4, 5);
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DELETE a FROM t4 AS a, t4 AS b;
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--error ER_TABLE_NOT_LOCKED_FOR_WRITE
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DELETE b FROM t4 AS a, t4 AS b;
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UNLOCK TABLES;
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DROP TABLES t1, t4;
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--echo # 2.4) ALTER TABLE INPLACE with RENAME clause to different schema.
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--echo #
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CREATE TABLE t1 (i INT);
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CREATE DATABASE mysqltest;
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 ADD COLUMN k INT, RENAME TO mysqltest.t1, ALGORITHM=INPLACE;
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--echo # Table is available in new schema under LOCK TABLES.
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SELECT * FROM mysqltest.t1;
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connection con1;
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--echo # Access by new name from other connections should be blocked.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM mysqltest.t1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--echo # But not to old schema and table name.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t1;
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--echo # Also IX lock on new schema should be kept.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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ALTER DATABASE mysqltest CHARACTER SET latin1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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connection default;
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UNLOCK TABLES;
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DROP DATABASE mysqltest;
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--echo #
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--echo # 3) ALTER TABLE COPY with RENAME clause.
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--echo #
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--echo # 3.1) Successful ALTER TABLE COPY with RENAME clause.
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--echo #
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CREATE TABLE t1 (i INT);
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 ADD COLUMN j INT, RENAME TO t2, ALGORITHM=COPY;
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--echo # Table is available under new name under LOCK TABLES.
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SELECT * FROM t2;
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connection con1;
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--echo # Access by new name from other connections should be blocked.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--echo # But not for old table name.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t1;
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connection default;
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UNLOCK TABLES;
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--echo #
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--echo # 3.2) ALTER TABLE COPY with RENAME clause in case when several
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--echo # tables are locked.
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--echo #
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CREATE TABLE t1 (i INT);
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LOCK TABLES t1 READ, t2 WRITE;
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ALTER TABLE t2 ADD COLUMN k INT, RENAME TO t3, ALGORITHM=COPY;
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--echo # Table t1 should be still locked, and t2 should be available as t3
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--echo # with correct lock type.
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SELECT * FROM t1;
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INSERT INTO t3 values (1, 2, 3);
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UNLOCK TABLES;
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--echo #
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--echo # 3.3) ALTER TABLE COPY with RENAME clause in case when same table
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--echo # locked more than once.
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--echo #
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LOCK TABLES t1 READ, t3 WRITE, t3 AS a WRITE, t3 AS b READ;
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ALTER TABLE t3 ADD COLUMN l INT, RENAME TO t4, ALGORITHM=COPY;
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--echo # Check that tables are locked under correct aliases and with modes.
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SELECT * FROM t4 AS a, t4 AS b;
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INSERT INTO t4 VALUES (2, 3, 4, 5);
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DELETE a FROM t4 AS a, t4 AS b;
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--error ER_TABLE_NOT_LOCKED_FOR_WRITE
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DELETE b FROM t4 AS a, t4 AS b;
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UNLOCK TABLES;
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DROP TABLES t1, t4;
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--echo # 3.4) ALTER TABLE COPY with RENAME clause to different schema.
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--echo #
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CREATE TABLE t1 (i INT);
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CREATE DATABASE mysqltest;
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 ADD COLUMN k INT, RENAME TO mysqltest.t1, ALGORITHM=COPY;
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--echo # Table is available in new schema under LOCK TABLES.
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SELECT * FROM mysqltest.t1;
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connection con1;
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--echo # Access by new name from other connections should be blocked.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM mysqltest.t1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--echo # But not to old schema and table name.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t1;
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--echo # Also IX lock on new schema should be kept.
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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ALTER DATABASE mysqltest CHARACTER SET latin1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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connection default;
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UNLOCK TABLES;
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DROP DATABASE mysqltest;
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