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09c80e12c5
Major replication test framework cleanup. This does the following:
- Ensure that all tests clean up the replication state when they
finish, by making check-testcase check the output of SHOW SLAVE STATUS.
This implies:
- Slave must not be running after test finished. This is good
because it removes the risk for sporadic errors in subsequent
tests when a test forgets to sync correctly.
- Slave SQL and IO errors must be cleared when test ends. This is
good because we will notice if a test gets an unexpected error in
the slave threads near the end.
- We no longer have to clean up before a test starts.
- Ensure that all tests that wait for an error in one of the slave
threads waits for a specific error. It is no longer possible to
source wait_for_slave_[sql|io]_to_stop.inc when there is an error
in one of the slave threads. This is good because:
- If a test expects an error but there is a bug that causes
another error to happen, or if it stops the slave thread without
an error, then we will notice.
- When developing tests, wait_for_*_to_[start|stop].inc will fail
immediately if there is an error in the relevant slave thread.
Before this patch, we had to wait for the timeout.
- Remove duplicated and repeated code for setting up unusual replication
topologies. Now, there is a single file that is capable of setting
up arbitrary topologies (include/rpl_init.inc, but
include/master-slave.inc is still available for the most common
topology). Tests can now end with include/rpl_end.inc, which will clean
up correctly no matter what topology is used. The topology can be
changed with include/rpl_change_topology.inc.
- Improved debug information when tests fail. This includes:
- debug info is printed on all servers configured by include/rpl_init.inc
- User can set $rpl_debug=1, which makes auxiliary replication files
print relevant debug info.
- Improved documentation for all auxiliary replication files. Now they
describe purpose, usage, parameters, and side effects.
- Many small code cleanups:
- Made have_innodb.inc output a sensible error message.
- Moved contents of rpl000017-slave.sh into rpl000017.test
- Added mysqltest variables that expose the current state of
disable_warnings/enable_warnings and friends.
- Too many to list here: see per-file comments for details.
375 lines
10 KiB
Plaintext
375 lines
10 KiB
Plaintext
# Testing various forms of idempotency for replication that should
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# work the same way under statement based as under row based.
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source include/master-slave.inc;
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connection master;
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source include/have_innodb.inc;
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connection slave;
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source include/have_innodb.inc;
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# Add suppression for expected warning(s) in slaves error log
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call mtr.add_suppression("Slave: Can't find record in 't.' Error_code: 1032");
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call mtr.add_suppression("Slave: Cannot delete or update a parent row: a foreign key constraint fails .* Error_code: 1451");
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call mtr.add_suppression("Slave: Cannot add or update a child row: a foreign key constraint fails .* Error_code: 1452");
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SET @old_slave_exec_mode= @@global.slave_exec_mode;
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connection master;
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CREATE TABLE t1 (a INT PRIMARY KEY);
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CREATE TABLE t2 (a INT);
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INSERT INTO t1 VALUES (-1),(-2),(-3);
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INSERT INTO t2 VALUES (-1),(-2),(-3);
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sync_slave_with_master;
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# A delete for a row that does not exist, the statement is
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# deliberately written to be idempotent for statement-based
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# replication as well. We test this towards both a table with a
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# primary key and without a primary key.
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connection slave;
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DELETE FROM t1 WHERE a = -2;
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DELETE FROM t2 WHERE a = -2;
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connection master;
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DELETE FROM t1 WHERE a = -2;
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DELETE FROM t2 WHERE a = -2;
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SELECT * FROM t1 ORDER BY a;
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SELECT * FROM t2 ORDER BY a;
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sync_slave_with_master;
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SELECT * FROM t1 ORDER BY a;
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SELECT * FROM t2 ORDER BY a;
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--source include/check_slave_no_error.inc
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# An insert of a row that already exists. Since we are replacing the
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# row if it already exists, the most apropriate representation is
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# INSERT IGNORE. We only test this towards a table with a primary key,
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# since the other case does not make sense.
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INSERT IGNORE INTO t1 VALUES (-2);
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connection master;
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INSERT IGNORE INTO t1 VALUES (-2);
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SELECT * FROM t1 ORDER BY a;
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sync_slave_with_master;
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SELECT * FROM t1 ORDER BY a;
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--source include/check_slave_no_error.inc
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# BUG#19958: RBR idempotency issue for UPDATE and DELETE
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# Statement-based and row-based replication have different behaviour
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# when updating a row with an explicit WHERE-clause that matches
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# exactly one row (or no row at all). For statement-based replication,
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# the statement is idempotent since the first time it is executed, it
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# will update exactly one row, and the second time it will not update
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# any row at all. This was not the case for row-based replication, so
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# we test under both row-based and statement-based replication both
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# for tables with and without primary keys.
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connection slave;
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UPDATE t1 SET a = 1 WHERE a = -1;
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UPDATE t2 SET a = 1 WHERE a = -1;
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connection master;
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UPDATE t1 SET a = 1 WHERE a = -1;
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UPDATE t2 SET a = 1 WHERE a = -1;
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SELECT * FROM t1 ORDER BY a;
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SELECT * FROM t2 ORDER BY a;
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sync_slave_with_master;
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SELECT * FROM t1 ORDER BY a;
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SELECT * FROM t2 ORDER BY a;
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--source include/check_slave_no_error.inc
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connection master;
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DROP TABLE t1, t2;
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sync_slave_with_master;
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# bug#31609 Not all RBR slave errors reported as errors
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# bug#31552 Replication breaks when deleting rows from out-of-sync table
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# without PK
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#
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# Idempotent applying is not default any longer.
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# The default for slave-exec-mode option and server
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# variable slave_exec_mode is 'STRICT'.
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# When 'STRICT' mode is set, the slave SQL thread will stop whenever
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# the row to change is not found. In 'IDEMPOTENT' mode, the SQL thread
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# will continue running and apply the row - replace if it's Write_rows event -
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# or skip to the next event.
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# the previous part of the tests was with IDEMPOTENT slave's mode.
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#
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# Other than above idempotent errors dealing with foreign keys constraint
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#
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select @@global.slave_exec_mode /* must be IDEMPOTENT */;
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connection master;
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create table ti1 (b int primary key) engine = innodb;
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create table ti2 (a int primary key, b int, foreign key (b) references ti1(b))
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engine = innodb;
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set foreign_key_checks=1 /* ensure the check */;
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insert into ti1 values (1),(2),(3);
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insert into ti2 set a=2, b=2;
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sync_slave_with_master;
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#connection slave;
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select * from ti1 order by b /* must be (1),(2),(3) */;
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insert into ti2 set a=1, b=1;
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select * from ti2 order by b /* must be (1,1) (2,2) */;
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connection master;
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# from now on checking rbr specific idempotent errors
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set @save_binlog_format= @@session.binlog_format;
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set @@session.binlog_format= row;
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delete from ti1 where b=1;
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select * from ti1 order by b /* must be (2),(3) */;
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# slave must catch up (expect some warnings in error.log)
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sync_slave_with_master;
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#connection slave;
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select * from ti1 order by b /* must stays as were on master (1),(2),(3) */;
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delete from ti1 where b=3;
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connection master;
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insert into ti2 set a=3, b=3;
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# slave must catch up (expect some warnings in error.log)
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sync_slave_with_master;
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#connection slave;
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select * from ti2 order by b /* must be (1,1),(2,2) - not inserted */;
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#
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# Checking the new global sys variable
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#
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connection slave;
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set global slave_exec_mode='IDEMPOTENT';
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set global slave_exec_mode='STRICT';
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# checking mutual exclusion for the options
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--error ER_SLAVE_AMBIGOUS_EXEC_MODE
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set global slave_exec_mode='IDEMPOTENT,STRICT';
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select @@global.slave_exec_mode /* must be STRICT */;
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#
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# Checking stops.
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# In the following sections strict slave sql thread is going to
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# stop when faces an idempotent error. In order to proceed
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# the mode is temporarily switched to indempotent.
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#
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#
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--echo *** foreign keys errors as above now forces to stop
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#
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connection master;
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set foreign_key_checks=0;
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drop table ti2, ti1;
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create table ti1 (b int primary key) engine = innodb;
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create table ti2 (a int primary key, b int, foreign key (b) references ti1(b))
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engine = innodb;
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set foreign_key_checks=1 /* ensure the check */;
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insert into ti1 values (1),(2),(3);
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insert into ti2 set a=2, b=2;
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sync_slave_with_master;
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#connection slave;
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select * from ti1 order by b /* must be (1),(2),(3) */;
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--echo *** conspire future problem
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insert into ti2 set a=1, b=1;
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select * from ti2 order by b /* must be (1,1) (2,2) */;
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connection master;
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delete from ti1 where b=1 /* offending delete event */;
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select * from ti1 order by b /* must be (2),(3) */;
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# foreign key: row is referenced
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--echo *** slave must stop (Trying to delete a referenced foreing key)
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connection slave;
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# 1451 = ER_ROW_ID_REFERENCED_2
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--let $slave_sql_errno= 1451
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--source include/wait_for_slave_sql_error.inc
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select * from ti1 order by b /* must be (1),(2),(3) - not deleted */;
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set foreign_key_checks= 0;
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delete from ti2 where b=1;
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set foreign_key_checks= 1;
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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set global slave_exec_mode='STRICT';
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connection master;
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sync_slave_with_master;
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#connection slave;
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--echo *** conspire the following insert failure
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# foreign key: no referenced row
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--echo *** conspire future problem
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delete from ti1 where b=3;
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connection master;
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insert into ti2 set a=3, b=3 /* offending write event */;
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--echo *** slave must stop (Trying to insert an invalid foreign key)
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connection slave;
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# 1452 = ER_NO_REFERENCED_ROW_2
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--let $slave_sql_errno= 1452
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--source include/wait_for_slave_sql_error.inc
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select * from ti2 order by b /* must be (2,2) */;
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set foreign_key_checks= 0;
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insert into ti1 set b=3;
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set foreign_key_checks= 1;
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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set global slave_exec_mode='STRICT';
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connection master;
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sync_slave_with_master;
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select * from ti2 order by b /* must be (2,2),(3,3) */;
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#
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--echo *** other errors
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#
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# dup key insert
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#connection slave;
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--echo *** conspiring query
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insert into ti1 set b=1;
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connection master;
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insert into ti1 set b=1 /* offending write event */;
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--echo *** slave must stop (Trying to insert a dupliacte key)
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connection slave;
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# 1062 = ER_DUP_ENTRY
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--let $slave_sql_errno= 1062
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--source include/wait_for_slave_sql_error.inc
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set foreign_key_checks= 0;
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delete from ti1 where b=1;
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set foreign_key_checks= 1;
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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set global slave_exec_mode='STRICT';
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# key not found
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connection master;
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CREATE TABLE t1 (a INT PRIMARY KEY);
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CREATE TABLE t2 (a INT);
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INSERT INTO t1 VALUES (-1),(-2),(-3);
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INSERT INTO t2 VALUES (-1),(-2),(-3);
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sync_slave_with_master;
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#connection slave;
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DELETE FROM t1 WHERE a = -2;
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DELETE FROM t2 WHERE a = -2;
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connection master;
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DELETE FROM t1 WHERE a = -2;
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--echo *** slave must stop (Key was not found)
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connection slave;
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# 1032 = ER_KEY_NOT_FOUND
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--let $slave_sql_errno= 1032
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--source include/wait_for_slave_sql_error.inc
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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set global slave_exec_mode='STRICT';
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connection master;
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DELETE FROM t2 WHERE a = -2;
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--echo *** slave must stop (Key was not found)
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connection slave;
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# 1032 = ER_KEY_NOT_FOUND
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--let $slave_sql_errno= 1032
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source include/wait_for_slave_sql_error.inc;
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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set global slave_exec_mode='STRICT';
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UPDATE t1 SET a = 1 WHERE a = -1;
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UPDATE t2 SET a = 1 WHERE a = -1;
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connection master;
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UPDATE t1 SET a = 1 WHERE a = -1;
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--echo *** slave must stop (Key was not found)
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connection slave;
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# 1032 = ER_KEY_NOT_FOUND
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--let $slave_sql_errno= 1032
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source include/wait_for_slave_sql_error.inc;
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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set global slave_exec_mode='STRICT';
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connection master;
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UPDATE t2 SET a = 1 WHERE a = -1;
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--echo *** slave must stop (Key was not found)
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connection slave;
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# 1032 = ER_KEY_NOT_FOUND
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--let $slave_sql_errno= 1032
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source include/wait_for_slave_sql_error.inc;
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set global slave_exec_mode='IDEMPOTENT';
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start slave sql_thread;
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connection master;
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sync_slave_with_master;
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#connection slave;
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SET @@global.slave_exec_mode= @old_slave_exec_mode;
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# cleanup for bug#31609 tests
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connection master;
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set @@session.binlog_format= @save_binlog_format;
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drop table t1,t2,ti2,ti1;
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--source include/rpl_end.inc
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--echo *** end of tests
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