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MDEV-4478: Implement GTID "strict mode"

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When @@GLOBAL.gtid_strict_mode=1, then certain operations result
in error that would otherwise result in out-of-order binlog files
between servers.

GTID sequence numbers are now allocated independently per domain;
this results in less/no holes in GTID sequences, increasing the
likelyhood that diverging binlogs will be caught by the slave when
GTID strict mode is enabled.
This commit is contained in:
unknown
2013-05-28 13:28:31 +02:00
parent f5319394e3
commit ee2b7db3f8
24 changed files with 898 additions and 171 deletions
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29
mysql-test/suite/sys_vars/r/gtid_strict_mode_basic.result Normal file
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@ -0,0 +1,29 @@
select @@global.gtid_strict_mode;
@@global.gtid_strict_mode
0
select @@session.gtid_strict_mode;
ERROR HY000: Variable 'gtid_strict_mode' is a GLOBAL variable
show global variables like 'gtid_strict_mode';
Variable_name Value
gtid_strict_mode OFF
show session variables like 'gtid_strict_mode';
Variable_name Value
gtid_strict_mode OFF
select * from information_schema.global_variables where variable_name='gtid_strict_mode';
VARIABLE_NAME VARIABLE_VALUE
GTID_STRICT_MODE OFF
select * from information_schema.session_variables where variable_name='gtid_strict_mode';
VARIABLE_NAME VARIABLE_VALUE
GTID_STRICT_MODE OFF
SET @old= @@GLOBAL.gtid_strict_mode;
set global gtid_strict_mode=1;
select @@global.gtid_strict_mode;
@@global.gtid_strict_mode
1
set global gtid_strict_mode=0;
select @@global.gtid_strict_mode;
@@global.gtid_strict_mode
0
set global gtid_strict_mode=@old;
set session gtid_strict_mode=1;
ERROR HY000: Variable 'gtid_strict_mode' is a GLOBAL variable and should be set with SET GLOBAL