|
This is a sibling of MDEV-25477. The difference is that MDEV-25477 concerns any replication format, but only transactional engines, while this one concerns any engines, but only RBR format, which means binlog_format=row or binlog_format=mixed when replication automatically switched to RBR, which can happen on a variety of reasons.
Partitioning auto-creation cannot be safely used in a replication topology if there is a chance that the binary log will be written in a row format.
The reason is that when DML ends without affecting any rows, a new partition still can be created, but no row events will be written in the binary log. Thus, the master will have the new partition, but the slave will not. This discrepancy will almost inevitably cause a replication abort some time later.
--source include/have_partition.inc
|
--source include/have_binlog_format_row.inc
|
--source include/master-slave.inc
|
|
create table t (a int) with system versioning
|
partition by system_time interval 1 hour auto;
|
|
insert into t values (1),(2);
|
set @@timestamp= @@timestamp+3601;
|
|
update t set a = 3 limit 0;
|
|
show create table t;
|
|
--sync_slave_with_master
|
|
show create table t;
|
|
--connection master
|
alter table t drop partition p0;
|
|
--sync_slave_with_master
|
|
bb-10.6-midenok-MDEV-17554 edbc73ac48
|
show create table t;
|
Table Create Table
|
t CREATE TABLE `t` (
|
`a` int(11) DEFAULT NULL
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING
|
PARTITION BY SYSTEM_TIME INTERVAL 1 HOUR STARTS TIMESTAMP'2021-04-21 23:00:00' AUTO
|
PARTITIONS 3
|
connection slave;
|
show create table t;
|
Table Create Table
|
t CREATE TABLE `t` (
|
`a` int(11) DEFAULT NULL
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING
|
PARTITION BY SYSTEM_TIME INTERVAL 1 HOUR STARTS TIMESTAMP'2021-04-21 23:00:00' AUTO
|
PARTITIONS 2
|
Last_Errno 4128
|
Last_Error Error 'Wrong partitions for `t`: must have at least one HISTORY and exactly one last CURRENT' on query. Default database: 'test'. Query: 'alter table t drop partition p0'
|
|