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MDEV-34455 innodb_read_only=ON fails to imply innodb_doublewrite=OFF

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innodb_doublewrite_update(): Disallow any change if srv_read_only_mode
holds, that is, the server was started with innodb_read_only=ON or
innodb_force_recovery=6.

This fixes up commit 1122ac978e2e709ae17a19335cbf0e4e5b53ad01 (MDEV-33545).
This commit is contained in:
Marko Mäkelä 2024-06-26 08:23:54 +03:00
parent 8c8b3ab784
commit cc1363071a
3 changed files with 11 additions and 1 deletions
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5
mysql-test/suite/innodb/r/alter_copy.result
View File

@ -186,6 +186,11 @@ t1 CREATE TABLE `t1` (
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
SET GLOBAL innodb_doublewrite=ON;
SELECT @@GLOBAL.innodb_doublewrite "OFF expected";
OFF expected
OFF
SET GLOBAL innodb_buf_flush_list_now=ON;
# restart
FTS_INDEX_1.ibd
FTS_INDEX_2.ibd

4
mysql-test/suite/innodb/t/alter_copy.test
View File

@ -87,6 +87,10 @@ SELECT * FROM t1 WHERE MATCH(b,c) AGAINST ('column');
SHOW CREATE TABLE t1;
CHECK TABLE t1;
SET GLOBAL innodb_doublewrite=ON;
SELECT @@GLOBAL.innodb_doublewrite "OFF expected";
SET GLOBAL innodb_buf_flush_list_now=ON;
--let $restart_parameters=
--source include/restart_mysqld.inc
--replace_regex /FTS_[0-9a-f]*_[0-9a-f]*/FTS/

3
storage/innobase/handler/ha_innodb.cc
View File

@ -18420,7 +18420,8 @@ static void innodb_data_file_write_through_update(THD *, st_mysql_sys_var*,
static void innodb_doublewrite_update(THD *, st_mysql_sys_var*,
void *, const void *save)
{
fil_system.set_use_doublewrite(*static_cast<const ulong*>(save));
if (!srv_read_only_mode)
fil_system.set_use_doublewrite(*static_cast<const ulong*>(save));
}
static void innodb_log_file_size_update(THD *thd, st_mysql_sys_var*,