MDEV-29934 rpl.rpl_start_alter_chain_basic, rpl.rpl_start_alter_restart_slave sometimes fail in BB with result content mismatch

rpl.rpl_start_alter_chain_basic was used to fail sporadically due
to a missed GTID master-slave synchronization which was necessary
because of the following SELECT from GTID-state table.

Fixed with arranging two synchronization pieces for two
chain slaves requiring that.

Note rpl.rpl_start_alter_restart_slave must have been fixed by
MDEV-30460 and 87e13722a9 (manual) merge commit.
This commit is contained in:
Andrei 2024-06-19 14:03:31 +03:00
parent c37b2a9f04
commit 387bdb2a2e
2 changed files with 9 additions and 0 deletions

View file

@ -64,7 +64,10 @@ connection server_2;
select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
domain_id seq_no
0 12
connection server_1;
include/save_master_gtid.inc
connection server_3;
include/sync_with_master_gtid.inc
select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
domain_id seq_no
0 12
@ -77,6 +80,7 @@ select @@slave_parallel_threads;
@@slave_parallel_threads
0
connection server_4;
include/sync_with_master_gtid.inc
select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
domain_id seq_no
0 12

View file

@ -39,7 +39,11 @@ connect(slave_node,127.0.0.1,root,,test, $SERVER_MYPORT_2);
--connection server_2
select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
--connection server_1
--source include/save_master_gtid.inc
--connection server_3
--source include/sync_with_master_gtid.inc
select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
--source include/stop_slave.inc
--eval set global slave_parallel_threads = $slave_parallel_threads;
@ -49,6 +53,7 @@ select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
select @@slave_parallel_threads;
--connection server_4
--source include/sync_with_master_gtid.inc
select domain_id, seq_no from mysql.gtid_slave_pos order by seq_no desc limit 1;
--source include/rpl_end.inc