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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.
98 lines
2.8 KiB
Plaintext
98 lines
2.8 KiB
Plaintext
# This test checks that in a dual-head setup
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# A->B->A, where A has --log-slave-updates (why would it?
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# assume that there is a C as slave of A),
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# then the Exec_master_log_pos of SHOW SLAVE STATUS does
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# not stay too low on B(BUG#13023 due to events ignored because
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# of their server id).
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# It also will test BUG#13861.
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source include/have_innodb.inc;
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--let $rpl_topology= 1->2->1
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--source include/rpl_init.inc
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# now we test it
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connection server_2;
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create table t1 (n int);
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let $master_log_file= query_get_value(SHOW MASTER STATUS, File, 1);
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let $master_log_pos_1= query_get_value(SHOW MASTER STATUS, Position, 1);
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let $master_log_pos_1= `SELECT $master_log_pos_1 + 3`;
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--sync_slave_with_master server_1
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#
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# BUG#13861 - START SLAVE UNTIL may stop 1 evnt too late if
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# log-slave-updates and circul repl
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#
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source include/stop_slave.inc;
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create table t2 (n int); # create one ignored event
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--sync_slave_with_master server_2
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show tables;
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create table t3 (n int) engine=innodb;
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let $master_log_pos_2= query_get_value(SHOW MASTER STATUS, Position, 1);
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let $master_log_pos_2= `SELECT $master_log_pos_2 + 5`;
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set @a=1;
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insert into t3 values(@a);
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let $master_log_pos_3= query_get_value(SHOW MASTER STATUS, Position, 1);
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let $master_log_pos_3= `SELECT $master_log_pos_3 + 5`;
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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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connection server_1;
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# bug is that START SLAVE UNTIL may stop too late, we test that by
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# asking it to stop before creation of t3.
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--replace_result $master_log_file MASTER_LOG_FILE $master_log_pos_1 MASTER_LOG_POS
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eval start slave until master_log_file="$master_log_file",master_log_pos=$master_log_pos_1;
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--source include/wait_for_slave_sql_to_stop.inc
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# then BUG#13861 causes t3 to show up below (because stopped too
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# late).
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show tables;
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# ensure that we do not break set @a=1; insert into t3 values(@a);
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--replace_result $master_log_file MASTER_LOG_FILE $master_log_pos_2 MASTER_LOG_POS
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eval start slave until master_log_file="$master_log_file",master_log_pos=$master_log_pos_2;
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--source include/wait_for_slave_sql_to_stop.inc
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select * from t3;
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# ensure that we do not break transaction
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--replace_result $master_log_file MASTER_LOG_FILE $master_log_pos_3 MASTER_LOG_POS
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eval start slave until master_log_file="$master_log_file",master_log_pos=$master_log_pos_3;
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--source include/wait_for_slave_sql_to_stop.inc
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select * from t3;
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source include/start_slave.inc;
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# BUG#13023 is that Exec_master_log_pos may stay too low "forever":
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connection server_1;
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create table t4 (n int); # create 3 ignored events
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create table t5 (n int);
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create table t6 (n int);
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--sync_slave_with_master server_2
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# then BUG#13023 caused hang below ("master" looks behind, while it's
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# not in terms of updates done).
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--sync_slave_with_master server_1
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show tables;
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# cleanup
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drop table t1, t2, t3, t4, t5, t6;
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--source include/rpl_end.inc
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