The test below has 3 different outcomes for me:
1) SQL thread stops at the requested position, the number of rows in the table is as expected (10);
2) SQL thread executes an extra event and then stops, the position differs from the requested one, the number of rows in the table is 12;
3) SQL thread does not stop at all, waiting on the condition times out, the number of rows in the table is 16.
So, run the test with --trials=N .
For me, 5 is enough to get one of the problems, but your mileage may vary.
--source include/master-slave.inc
--source include/have_binlog_format_row.inc
--connection slave
--source include/stop_slave_sql.inc
--connection master
create table t1 (i int );
flush logs;
insert into t1 values (1),(2);
insert into t1 values (3),(4);
insert into t1 values (5),(6);
insert into t1 values (7),(8);
insert into t1 values (9),(10);
--let $master_file = query_get_value(show master status,File,1)
--let $master_pos = query_get_value(show master status,Position,1)
insert into t1 values (11),(12);
insert into t1 values (13),(14);
insert into t1 values (15),(16);
--connection slave
set global slave_parallel_threads = 1;
eval start slave until master_log_file= '$master_file' , master_log_pos=$master_pos;
--let $show_statement = SHOW SLAVE STATUS
--let $field = Slave_SQL_Running
--let $condition = = 'No'
--let $wait_timeout = 10
--source include/wait_show_condition.inc
if (` select COUNT (*) > 10 from t1`)
{
SELECT * FROM t1;
query_vertical show slave status;
die "Extra rows in the table" ;
}
drop table t1;
set global slave_parallel_threads = DEFAULT ;
--source include/stop_slave_io.inc
--connection master
drop table t1;
Checked on 10.0 commit 0880284bf7 and 10.1 commit 3e55ef26d.
Kristian Nielsen
made changes -
2015-09-11 13:49
Field
Original Value
New Value
Fix Version/s
10.0.22
[ 19700
]
Fix Version/s
10.1.8
[ 19605
]
Fix Version/s
10.0
[ 16000
]
Fix Version/s
10.1
[ 16100
]
Resolution
Fixed
[ 1
]
Status
Open
[ 1
]
Closed
[ 6
]
Sergei Golubchik
made changes -
2021-12-06 21:41
Workflow
MariaDB v3
[ 67581
]
MariaDB v4
[ 149191
]
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