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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.
55 lines
1.5 KiB
Plaintext
55 lines
1.5 KiB
Plaintext
include/rpl_init.inc [topology=1->2->1]
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create table t1 (n int);
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include/stop_slave.inc
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create table t2 (n int);
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show tables;
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Tables_in_test
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t1
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t2
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create table t3 (n int) engine=innodb;
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set @a=1;
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insert into t3 values(@a);
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begin;
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insert into t3 values(2);
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insert into t3 values(3);
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commit;
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insert into t3 values(4);
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start slave until master_log_file="MASTER_LOG_FILE",master_log_pos=MASTER_LOG_POS;
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Warnings:
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Note 1278 It is recommended to use --skip-slave-start when doing step-by-step replication with START SLAVE UNTIL; otherwise, you will get problems if you get an unexpected slave's mysqld restart
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include/wait_for_slave_sql_to_stop.inc
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show tables;
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Tables_in_test
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t1
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t2
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start slave until master_log_file="MASTER_LOG_FILE",master_log_pos=MASTER_LOG_POS;
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Warnings:
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Note 1278 It is recommended to use --skip-slave-start when doing step-by-step replication with START SLAVE UNTIL; otherwise, you will get problems if you get an unexpected slave's mysqld restart
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include/wait_for_slave_sql_to_stop.inc
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select * from t3;
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n
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1
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start slave until master_log_file="MASTER_LOG_FILE",master_log_pos=MASTER_LOG_POS;
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Warnings:
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Note 1278 It is recommended to use --skip-slave-start when doing step-by-step replication with START SLAVE UNTIL; otherwise, you will get problems if you get an unexpected slave's mysqld restart
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include/wait_for_slave_sql_to_stop.inc
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select * from t3;
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n
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1
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2
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3
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include/start_slave.inc
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create table t4 (n int);
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create table t5 (n int);
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create table t6 (n int);
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show tables;
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Tables_in_test
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t1
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t2
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t3
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t4
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t5
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t6
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drop table t1, t2, t3, t4, t5, t6;
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include/rpl_end.inc
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