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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.
76 lines
2.2 KiB
Plaintext
76 lines
2.2 KiB
Plaintext
--source include/have_multi_ndb.inc
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--source include/have_binlog_format_mixed_or_row.inc
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# We need server 3 later on in this test.
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--let $rpl_server_count= 3
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--source include/master-slave.inc
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--connection master
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# note: server2 is another "master" connected to the master cluster
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#
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# Currently test only works with ndb since it retrieves "old"
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# binlog positions with mysql.ndb_binlog_index and ndb_apply_status;
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#
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# create a table with one row, and make sure the other "master" gets it
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CREATE TABLE t1 (c1 CHAR(15), c2 CHAR(15), c3 INT, PRIMARY KEY (c3)) ENGINE = NDB ;
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connection server2;
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reset master;
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SHOW TABLES;
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connection master;
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INSERT INTO t1 VALUES ("row1","will go away",1);
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SELECT * FROM t1 ORDER BY c3;
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connection server2;
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SELECT * FROM t1 ORDER BY c3;
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# sync slave and retrieve epoch and stop the slave
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connection master;
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sync_slave_with_master;
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--replace_column 1 <the_epoch>
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SELECT @the_epoch:=MAX(epoch) FROM mysql.ndb_apply_status;
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let $the_epoch= `select @the_epoch` ;
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SELECT * FROM t1 ORDER BY c3;
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stop slave;
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# get the master binlog pos from the epoch, from the _other_ "master", server2
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connection server2;
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--replace_result $the_epoch <the_epoch>
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eval SELECT @the_pos:=Position,@the_file:=SUBSTRING_INDEX(FILE, '/', -1)
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FROM mysql.ndb_binlog_index WHERE epoch = $the_epoch ;
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let $the_pos= `SELECT @the_pos` ;
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let $the_file= `SELECT @the_file` ;
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# now connect the slave to the _other_ "master"
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--let $rpl_topology= 3->2
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--let $rpl_master_log_file= 2:$the_file
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--let $rpl_master_log_pos= 2:$the_pos
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--source include/rpl_change_topology.inc
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--connection slave
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--source include/start_slave.inc
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# insert some more values on the first master
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connection master;
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INSERT INTO t1 VALUES ("row2","will go away",2),("row3","will change",3),("row4","D",4);
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DELETE FROM t1 WHERE c3 = 1;
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UPDATE t1 SET c2="should go away" WHERE c3 = 2;
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UPDATE t1 SET c2="C" WHERE c3 = 3;
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DELETE FROM t1 WHERE c3 = 2;
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SELECT * FROM t1 ORDER BY c3;
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# insert another row, and check that we have it on the slave
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connection server2;
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INSERT INTO t1 VALUES ("row5","E",5);
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SELECT * FROM t1 ORDER BY c3;
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sync_slave_with_master;
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SELECT * FROM t1 ORDER BY c3;
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--echo ==== clean up ====
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connection server2;
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DROP TABLE t1;
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sync_slave_with_master;
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--source include/rpl_end.inc
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