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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.
83 lines
2.7 KiB
Plaintext
83 lines
2.7 KiB
Plaintext
# Both of the following tests check that comparison of binlog BI
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# against SE record will not fail due to remains from previous values
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# in the SE record (before a given field was set to null).
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#
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# In MIXED mode:
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# - Insert and update are executed as statements
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# - Delete is executed as a row event
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# - Assertion: checks that comparison will not fail because the update
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# statement will clear the record contents for the nulled
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# field. If data was not cleared, some engines may keep
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# the value and return it later as garbage - despite the
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# fact that field is null. This may cause slave to
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# falsely fail in the comparison (memcmp would fail
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# because of "garbage" in record data).
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#
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# In ROW mode:
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# - Insert, update and delete are executed as row events.
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# - Assertion: checks that comparison will not fail because the update
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# rows event will clear the record contents before
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# feeding the new value to the SE. This protects against
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# SEs that do not clear record contents when storing
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# nulled fields. If the engine did not clear the data it
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# would cause slave to falsely fail in the comparison
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# (memcmp would fail because of "garbage" in record
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# data). This scenario is pretty much the same described
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# above in MIXED mode, but checks different execution
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# path in the slave.
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# BUG#49481: RBR: MyISAM and bit fields may cause slave to stop on
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# delete cant find record
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-- source include/rpl_reset.inc
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-- connection master
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-- eval CREATE TABLE t1 (c1 BIT, c2 INT) Engine=$engine
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INSERT INTO `t1` VALUES ( 1, 1 );
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UPDATE t1 SET c1=NULL where c2=1;
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-- sync_slave_with_master
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-- let $diff_tables= master:t1, slave:t1
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-- source include/diff_tables.inc
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-- connection master
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# triggers switch to row mode when on mixed
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DELETE FROM t1 WHERE c2=1 LIMIT 1;
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-- sync_slave_with_master
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-- let $diff_tables= master:t1, slave:t1
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-- source include/diff_tables.inc
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-- connection master
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DROP TABLE t1;
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-- sync_slave_with_master
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-- source include/rpl_reset.inc
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-- connection master
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# BUG#49482: RBR: Replication may break on deletes when MyISAM tables
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# + char field are used
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-- eval CREATE TABLE t1 (c1 CHAR) Engine=$engine
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INSERT INTO t1 ( c1 ) VALUES ( 'w' ) ;
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SELECT * FROM t1;
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UPDATE t1 SET c1=NULL WHERE c1='w';
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-- sync_slave_with_master
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-- let $diff_tables= master:t1, slave:t1
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-- source include/diff_tables.inc
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-- connection master
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# triggers switch to row mode when on mixed
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DELETE FROM t1 LIMIT 2;
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-- sync_slave_with_master
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-- let $diff_tables= master:t1, slave:t1
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-- source include/diff_tables.inc
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-- connection master
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DROP TABLE t1;
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-- sync_slave_with_master
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