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https://github.com/MariaDB/server.git
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c53aab974b
Part of MDEV-5336 Implement LOCK FOR BACKUP - Changed check of Global_only_lock to also include BACKUP lock. - We store latest MDL_BACKUP_DDL lock in thd->mdl_backup_ticket to be able to downgrade lock during copy_data_between_tables()
158 lines
4.9 KiB
Text
158 lines
4.9 KiB
Text
connect con1,localhost,root,,;
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SET SESSION lock_wait_timeout = 1;
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#-----------------------------------------------------------------------
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# Single-threaded tests
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#-----------------------------------------------------------------------
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# Show the fate and impact of some SELECT /HANDLER ... READ
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# sliding through the sequence.
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CREATE TABLE t_permanent_aria (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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INSERT INTO t_permanent_aria SET col1 = 1;
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BACKUP STAGE START;
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SELECT COUNT(*) FROM t_permanent_aria;
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COUNT(*)
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1
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HANDLER t_permanent_aria OPEN;
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HANDLER t_permanent_aria READ FIRST;
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col1
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1
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HANDLER t_permanent_aria CLOSE;
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BACKUP STAGE FLUSH;
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SELECT COUNT(*) FROM t_permanent_aria;
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COUNT(*)
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1
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HANDLER t_permanent_aria OPEN;
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HANDLER t_permanent_aria READ FIRST;
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col1
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1
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HANDLER t_permanent_aria CLOSE;
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BACKUP STAGE BLOCK_DDL;
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SELECT COUNT(*) FROM t_permanent_aria;
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COUNT(*)
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1
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HANDLER t_permanent_aria OPEN;
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HANDLER t_permanent_aria READ FIRST;
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col1
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1
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HANDLER t_permanent_aria CLOSE;
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BACKUP STAGE BLOCK_COMMIT;
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SELECT COUNT(*) FROM t_permanent_aria;
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COUNT(*)
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1
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HANDLER t_permanent_aria OPEN;
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HANDLER t_permanent_aria READ FIRST;
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col1
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1
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HANDLER t_permanent_aria CLOSE;
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BACKUP STAGE END;
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# In case the backup lock is taken by the current connection than
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# - DML modifying some permanent table is not allowed
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BACKUP STAGE START;
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SET AUTOCOMMIT = 0;
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INSERT INTO t_permanent_aria SET col1 = 1;
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ERROR HY000: Can't execute the command as you have a BACKUP STAGE active
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SET AUTOCOMMIT = 1;
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INSERT INTO t_permanent_aria SET col1 = 1;
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ERROR HY000: Can't execute the command as you have a BACKUP STAGE active
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# - DDL creating or renaming a permanent table or a procedure is not
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# allowed.
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# The latter tries to modify a permanent system table.
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CREATE TABLE throw_away (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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ERROR HY000: Can't execute the command as you have a BACKUP STAGE active
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RENAME TABLE t_permanent_aria To throw_away;
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ERROR HY000: Can't execute the command as you have a BACKUP STAGE active
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# - DDL creating a temporary table is allowed.
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CREATE TEMPORARY TABLE t_temporary_aria (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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# - DML modifying that temporary table is allowed.
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INSERT INTO t_temporary_aria SET col1 = 1;
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SELECT COUNT(*) FROM t_temporary_aria;
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COUNT(*)
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1
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BACKUP STAGE END;
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# Show the fate and impact of some auto committed INSERT into temporary
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# table sliding through the sequence.
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SET AUTOCOMMIT = 1;
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BACKUP STAGE START;
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INSERT INTO t_temporary_aria SET col1 = 1;
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BACKUP STAGE FLUSH;
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INSERT INTO t_temporary_aria SET col1 = 1;
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BACKUP STAGE BLOCK_DDL;
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INSERT INTO t_temporary_aria SET col1 = 1;
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BACKUP STAGE BLOCK_COMMIT;
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INSERT INTO t_temporary_aria SET col1 = 1;
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BACKUP STAGE END;
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SELECT COUNT(*) FROM t_temporary_aria;
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COUNT(*)
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5
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# Show the fate and impact of some DROP/CREATE TEMPORARY TABLE sliding
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# through the sequence.
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SET AUTOCOMMIT = 1;
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BACKUP STAGE START;
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DROP TEMPORARY TABLE t_temporary_aria;
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CREATE TEMPORARY TABLE t_temporary_aria (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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BACKUP STAGE FLUSH;
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DROP TEMPORARY TABLE t_temporary_aria;
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CREATE TEMPORARY TABLE t_temporary_aria (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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BACKUP STAGE BLOCK_DDL;
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DROP TEMPORARY TABLE t_temporary_aria;
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CREATE TEMPORARY TABLE t_temporary_aria (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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BACKUP STAGE BLOCK_COMMIT;
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DROP TEMPORARY TABLE t_temporary_aria;
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CREATE TEMPORARY TABLE t_temporary_aria (col1 INT) ENGINE = Aria TRANSACTIONAL = 0;
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BACKUP STAGE END;
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# Show that even more DDL on the temporary table is allowed.
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BACKUP STAGE START;
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TRUNCATE t_temporary_aria;
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ALTER TABLE t_temporary_aria ADD COLUMN col2 INT;
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ALTER TABLE t_temporary_aria ADD KEY idx(col2);
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BACKUP STAGE END;
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DROP TABLE t_permanent_aria;
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#-----------------------------------------------------------------------
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# Show that non transactional tables locks with BACKUP STAGE FLUSH
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#-----------------------------------------------------------------------
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set session lock_wait_timeout=default;
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create table t1 (a int) engine=aria transactional=0;
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insert into t1 values (1), (2);
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connection con1;
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backup stage start;
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backup stage flush;
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connection default;
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select * from t1;
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a
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1
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2
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SET STATEMENT lock_wait_timeout=0 FOR INSERT INTO t1 values (3);
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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INSERT INTO t1 values (4);
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connection con1;
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backup stage end;
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connection default;
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select * from t1;
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a
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1
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2
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4
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drop table t1;
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#-----------------------------------------------------------------------
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# Show that transactional tables doesn't lock with BACKUP STAGE FLUSH
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#-----------------------------------------------------------------------
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set session lock_wait_timeout=default;
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create table t1 (a int) engine=aria transactional=1 page_checksum=1;
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insert into t1 values (1), (2);
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connection con1;
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backup stage start;
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backup stage flush;
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connection default;
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INSERT INTO t1 values (4);
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connection con1;
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backup stage end;
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connection default;
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select * from t1;
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a
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1
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2
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4
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drop table t1;
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#
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# Cleanup
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#
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disconnect con1;
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