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#
# Preparation
#
CREATE TABLE t1 (i INT NOT NULL, PRIMARY KEY (i)) ENGINE=InnoDB;
RESET MASTER;
SET @@global.rpl_semi_sync_master_timeout = 60000;
SET @@global.rpl_semi_sync_master_wait_no_slave = 1;
# It's okay to see "Killed" but we should not see "Timeout" in the log.
call mtr.add_suppression("Killed waiting for reply of binlog");
#
# Test wait point = AFTER_COMMIT
#
SET @@global.rpl_semi_sync_master_wait_point = AFTER_COMMIT;
# Make another connection to INSERT from.
connect other,localhost,root,,;
connection other;
connection default;
SET GLOBAL rpl_semi_sync_master_enabled = 1;
# Go ahead and send the INSERT; it should block.
connection other;
INSERT INTO t1 (i) VALUES (1);
connection default;
# The INSERT thread should now be waiting.
SELECT state AS should_be_waiting
FROM information_schema.processlist WHERE id = @other_connection_id;
should_be_waiting
Waiting for semi-sync ACK from slave
# The insert should be visible to other threads
SELECT * FROM t1 ORDER BY 1;
i
1
# Kill the waiting thread; it should die immediately.
KILL @other_connection_id;
# Collect the error from the INSERT thread; it should be disconnected.
connection other;
Got one of the listed errors
connection default;
# Wait for INSERT thread to actually disappear (KILL closes connection
# before thread actually finishes its processing).
# The INSERT thread should now be gone.
SELECT state AS should_be_empty_set
FROM information_schema.processlist WHERE id = @other_connection_id;
should_be_empty_set
# The insert is still there
SELECT * FROM t1 ORDER BY 1;
i
1
connection default;
disconnect other;
# Make another connection to INSERT from.
connect other,localhost,root,,;
connection other;
connection default;
# Go ahead and send the INSERT; it should block.
connection other;
INSERT INTO t1 (i) VALUES (2);
connection default;
# The INSERT thread should now be waiting.
SELECT state AS should_be_waiting
FROM information_schema.processlist WHERE id = @other_connection_id;
should_be_waiting
Waiting for semi-sync ACK from slave
# The insert should be visible to other threads
SELECT * FROM t1 ORDER BY 1;
i
1
2
# Now restart server
# restart
# Done restarting server
# Reset setting that were lost in restart
SET @@global.rpl_semi_sync_master_timeout = 60000;
SET @@global.rpl_semi_sync_master_wait_no_slave = 1;
# Check that row is still there
SELECT * FROM t1 ORDER BY 1;
i
1
2
disconnect other;
#
# Test wait point = AFTER_SYNC
#
SET @@global.rpl_semi_sync_master_wait_point = AFTER_SYNC;
# Make another connection to INSERT from.
connect other,localhost,root,,;
connection other;
connection default;
SET GLOBAL rpl_semi_sync_master_enabled = 1;
# Go ahead and send the INSERT; it should block.
connection other;
INSERT INTO t1 (i) VALUES (3);
connection default;
# The INSERT thread should now be waiting.
SELECT state AS should_be_waiting
FROM information_schema.processlist WHERE id = @other_connection_id;
should_be_waiting
Waiting for semi-sync ACK from slave
# The insert should NOT be visible to other threads
SELECT * FROM t1 ORDER BY 1;
i
1
2
# Kill the waiting thread; it should die immediately.
KILL @other_connection_id;
# Collect the error from the INSERT thread; it should be disconnected.
connection other;
Got one of the listed errors
connection default;
# Wait for INSERT thread to actually disappear (KILL closes connection
# before thread actually finishes its processing).
# The INSERT thread should now be gone.
SELECT state AS should_be_empty_set
FROM information_schema.processlist WHERE id = @other_connection_id;
should_be_empty_set
# The row inserted is there
SELECT * FROM t1 ORDER BY 1;
i
1
2
3
connection default;
disconnect other;
# Make another connection to INSERT from.
connect other,localhost,root,,;
connection other;
connection default;
# Go ahead and send the INSERT; it should block.
connection other;
INSERT INTO t1 (i) VALUES (4);
connection default;
# The INSERT thread should now be waiting.
SELECT state AS should_be_waiting
FROM information_schema.processlist WHERE id = @other_connection_id;
should_be_waiting
Waiting for semi-sync ACK from slave
# The insert should NOT be visible to other threads
SELECT * FROM t1 ORDER BY 1;
i
1
2
3
# Now restart server
# restart
# Done restarting server
# Reset setting that were lost in restart
SET @@global.rpl_semi_sync_master_timeout = 60000;
SET @@global.rpl_semi_sync_master_wait_no_slave = 1;
# But the row inserted is there
SELECT * FROM t1 ORDER BY 1;
i
1
2
3
4
disconnect other;
#
# Cleanup
#
SET GLOBAL rpl_semi_sync_master_enabled = 0;
DROP TABLE t1;
SET @@global.rpl_semi_sync_master_timeout = 10000;
SET @@global.rpl_semi_sync_master_wait_no_slave = 1;
SET @@global.rpl_semi_sync_master_wait_point = AFTER_COMMIT;
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