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MDEV-31448: Killing a replica thread awaiting its GCO can hang/crash a parallel replica

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Various test cases for the bugs around MDEV-31448.
Test cases due to Brandon Nesterenko, thanks!

Reviewed-by: Andrei Elkin <andrei.elkin@mariadb.com>
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
This commit is contained in:
Kristian Nielsen
2023-06-15 21:46:01 +02:00
parent 5d61442c85
commit d4309d4830
6 changed files with 464 additions and 0 deletions
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142
mysql-test/suite/rpl/r/rpl_parallel_kill.result Normal file
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include/master-slave.inc
[connection master]
connection master;
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=innodb;
insert into t1 values (1);
include/save_master_gtid.inc
connection slave;
call mtr.add_suppression("Slave: Commit failed due to failure of an earlier commit on which this one depends");
include/sync_with_master_gtid.inc
include/stop_slave.inc
set @save.slave_parallel_threads= @@global.slave_parallel_threads;
set @save.slave_parallel_mode= @@global.slave_parallel_mode;
set @@global.slave_parallel_threads= 3;
set @@global.slave_parallel_mode= CONSERVATIVE;
connection slave1;
BEGIN;
update t1 set a=2 where a=1;
connection master;
SET @old_dbug= @@SESSION.debug_dbug;
SET @@SESSION.debug_dbug="+d,binlog_force_commit_id";
SET @commit_id= 10000;
update t1 set a=2 where a=1;
insert into t2 values (1);
SET @commit_id= 10001;
insert into t1 values (3);
connection slave;
include/start_slave.inc
kill $t3_tid;
connection slave1;
commit;
connection slave;
include/wait_for_slave_sql_to_stop.inc
update t1 set a=1 where a=2;
set @@global.slave_parallel_threads = @save.slave_parallel_threads;
set @@global.slave_parallel_mode = @save.slave_parallel_mode;
include/start_slave.inc
#
# Cleanup
connection master;
DROP TABLE t1, t2;
include/save_master_gtid.inc
connection slave;
include/sync_with_master_gtid.inc
# MDEV-31448 OOO finish event group by killed worker
# Initialize test data
connection master;
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=innodb;
insert into t1 values (1);
include/save_master_gtid.inc
connection slave;
call mtr.add_suppression("Connection was killed");
call mtr.add_suppression("Can.t find record");
include/sync_with_master_gtid.inc
include/stop_slave.inc
set @save.slave_parallel_threads= @@global.slave_parallel_threads;
set @save.slave_parallel_mode= @@global.slave_parallel_mode;
set @@global.slave_parallel_threads= 3;
set @@global.slave_parallel_mode= OPTIMISTIC;
connection slave1;
begin;
update t1 set a=2 where a=1;
connection master;
set @old_dbug= @@session.debug_dbug;
set @@session.debug_dbug="+d,binlog_force_commit_id";
set @commit_id= 10000;
update t1 set a=2 where a=1;
insert into t2 values (1);
drop table t2;
connection slave;
include/start_slave.inc
# wait for T1
# wait for T2
# wait for T3
kill $t2_tid;
include/wait_for_slave_param.inc [Last_Errno]
connection slave1;
commit;
connection slave;
include/wait_for_slave_sql_to_stop.inc
update t1 set a=1 where a=2;
set @@global.slave_parallel_threads = @save.slave_parallel_threads;
set @@global.slave_parallel_mode = @save.slave_parallel_mode;
include/start_slave.inc
#
# Cleanup
connection master;
drop table t1;
include/save_master_gtid.inc
connection slave;
include/sync_with_master_gtid.inc
# MDEV-31448 OOO finish event group by killed worker
# Initialize test data
connection master;
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=innodb;
insert into t1 values (1);
include/save_master_gtid.inc
connection slave;
call mtr.add_suppression("Connection was killed");
call mtr.add_suppression("Can.t find record");
include/sync_with_master_gtid.inc
include/stop_slave.inc
set @save.slave_parallel_threads= @@global.slave_parallel_threads;
set @save.slave_parallel_mode= @@global.slave_parallel_mode;
set @@global.slave_parallel_threads= 3;
set @@global.slave_parallel_mode= OPTIMISTIC;
connection slave1;
begin;
update t1 set a=2 where a=1;
connection master;
set @old_dbug= @@session.debug_dbug;
set @@session.debug_dbug="+d,binlog_force_commit_id";
set @commit_id= 10000;
update t1 set a=2 where a=1;
set @commit_id= 10001;
set statement skip_parallel_replication=1 for insert into t2 values (1);
drop table t2;
connection slave;
include/start_slave.inc
# wait for T1
# wait for T2
# wait for T3
kill $t2_tid;
include/wait_for_slave_param.inc [Last_Errno]
connection slave1;
commit;
connection slave;
include/wait_for_slave_sql_to_stop.inc
update t1 set a=1 where a=2;
set @@global.slave_parallel_threads = @save.slave_parallel_threads;
set @@global.slave_parallel_mode = @save.slave_parallel_mode;
include/start_slave.inc
#
# Cleanup
connection master;
drop table t1;
include/save_master_gtid.inc
connection slave;
include/sync_with_master_gtid.inc
include/rpl_end.inc