mirror of
https://github.com/MariaDB/server.git
synced 2025-08-26 01:44:06 +03:00
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 $rpl_debug=1, which makes auxiliary replication files
print relevant debug info.
- Improved documentation for all auxiliary replication files. Now they
describe purpose, usage, parameters, and side effects.
- Many small code cleanups:
- Made have_innodb.inc output a sensible error message.
- Moved contents of rpl000017-slave.sh into rpl000017.test
- Added mysqltest variables that expose the current state of
disable_warnings/enable_warnings and friends.
- Too many to list here: see per-file comments for details.
135 lines
4.0 KiB
Plaintext
135 lines
4.0 KiB
Plaintext
# See if slave restarts the transaction after failing on an InnoDB deadlock error.
|
|
|
|
# Note: testing what happens when too many retries is possible, but
|
|
# needs large waits when running with --debug, so we don't do it.
|
|
# The same way, this test may not test what is expected when run
|
|
# under Valgrind, timings are too short then (with --valgrind I
|
|
# (Guilhem) have seen the test manage to provoke lock wait timeout
|
|
# error but not deadlock error; that is ok as code deals with the two
|
|
# errors in exactly the same way.
|
|
|
|
--source include/master-slave.inc
|
|
|
|
# 0) Prepare tables and data
|
|
--echo *** Prepare tables and data ***
|
|
|
|
connection master;
|
|
eval CREATE TABLE t1 (a INT NOT NULL, KEY(a)) ENGINE=$engine_type;
|
|
eval CREATE TABLE t2 (a INT) ENGINE=$engine_type;
|
|
eval CREATE TABLE t3 (a INT NOT NULL, KEY(a)) ENGINE=$engine_type;
|
|
sync_slave_with_master;
|
|
|
|
SHOW CREATE TABLE t1;
|
|
SHOW CREATE TABLE t2;
|
|
SHOW CREATE TABLE t3;
|
|
SHOW VARIABLES LIKE 'slave_transaction_retries';
|
|
--source include/stop_slave.inc
|
|
|
|
connection master;
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES (1);
|
|
# We make a long transaction here
|
|
INSERT INTO t2 VALUES (2), (2), (2), (2), (2), (2), (2), (2), (2), (2);
|
|
INSERT INTO t3 VALUES (3);
|
|
COMMIT;
|
|
save_master_pos;
|
|
# Save BEGIN event into variable
|
|
let $master_pos_begin= query_get_value(SHOW BINLOG EVENTS, Pos, 5);
|
|
--echo
|
|
|
|
# 1) Test deadlock
|
|
# Block slave SQL thread, wait retries of transaction, unlock slave before lock timeout
|
|
--echo *** Test deadlock ***
|
|
|
|
connection slave;
|
|
BEGIN;
|
|
SELECT * FROM t1 FOR UPDATE;
|
|
# Save variable 'Slave_retried_transactions' before deadlock
|
|
let $slave_retried_transactions= query_get_value(SHOW GLOBAL STATUS LIKE 'Slave_retried_transactions', Value, 1);
|
|
START SLAVE;
|
|
# Wait until SQL thread blocked: variable 'Slave_retried_transactions' will incremented
|
|
let $status_var= Slave_retried_transactions;
|
|
let $status_var_value= $slave_retried_transactions;
|
|
let $status_type= GLOBAL;
|
|
let $status_var_comparsion= >;
|
|
--source include/wait_for_status_var.inc
|
|
SELECT COUNT(*) FROM t2;
|
|
COMMIT;
|
|
sync_with_master;
|
|
|
|
# Check the data
|
|
SELECT * FROM t1;
|
|
SELECT * FROM t3;
|
|
# Check that no error is reported
|
|
source include/check_slave_is_running.inc;
|
|
--echo
|
|
|
|
# 2) Test lock wait timeout
|
|
# Block slave and wait lock timeout error
|
|
--echo *** Test lock wait timeout ***
|
|
|
|
connection slave;
|
|
--source include/stop_slave.inc
|
|
DELETE FROM t2;
|
|
# Set slave position to the BEGIN log event
|
|
--replace_result $master_pos_begin MASTER_POS_BEGIN
|
|
eval CHANGE MASTER TO MASTER_LOG_POS=$master_pos_begin;
|
|
BEGIN;
|
|
# Hold lock
|
|
SELECT * FROM t1 FOR UPDATE;
|
|
# Wait until slave stopped with error 'Lock wait timeout exceeded'
|
|
START SLAVE;
|
|
let $slave_sql_errno= 1205;
|
|
--source include/wait_for_slave_sql_error.inc
|
|
SELECT COUNT(*) FROM t2;
|
|
COMMIT;
|
|
--source include/start_slave.inc
|
|
sync_with_master;
|
|
# Check data from tables
|
|
SELECT * FROM t1;
|
|
SELECT * FROM t3;
|
|
# Check that no error is reported
|
|
source include/check_slave_is_running.inc;
|
|
--echo
|
|
|
|
# 3) Test lock wait timeout and purged relay log
|
|
# Set max_relay_log_size=0, block slave and wait lock timeout error.
|
|
# Restart slave and check that no erros appear
|
|
--echo *** Test lock wait timeout and purged relay logs ***
|
|
|
|
connection slave;
|
|
SET @my_max_relay_log_size= @@global.max_relay_log_size;
|
|
SET global max_relay_log_size=0;
|
|
--source include/stop_slave.inc
|
|
DELETE FROM t2;
|
|
# Set slave position to the BEGIN log event
|
|
--replace_result $master_pos_begin MASTER_POS_BEGIN
|
|
eval CHANGE MASTER TO MASTER_LOG_POS=$master_pos_begin;
|
|
BEGIN;
|
|
# Hold lock
|
|
SELECT * FROM t1 FOR UPDATE;
|
|
# Wait until slave stopped with error 'Lock wait timeout exceeded'
|
|
START SLAVE;
|
|
let $slave_sql_errno= 1205;
|
|
--source include/wait_for_slave_sql_error.inc
|
|
SELECT COUNT(*) FROM t2;
|
|
COMMIT;
|
|
--source include/start_slave.inc
|
|
sync_with_master;
|
|
# Check data from tables
|
|
SELECT * FROM t1;
|
|
SELECT * FROM t3;
|
|
# Check that no error is reported
|
|
source include/check_slave_is_running.inc;
|
|
--echo
|
|
|
|
# Clean up
|
|
--echo *** Clean up ***
|
|
connection master;
|
|
DROP TABLE t1,t2,t3;
|
|
sync_slave_with_master;
|
|
SET global max_relay_log_size= @my_max_relay_log_size;
|
|
|
|
--echo End of 5.1 tests
|
|
--source include/rpl_end.inc
|