Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Duplicate
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10.2.26, 10.1.41, 10.3.17, 10.4.7
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None
Description
Even if an instance is running with read_only=1 a query DROP TEMPORARY TABLE IF EXISTS from non-privileges user is logged into binary logs, causing problems on slaves during failover.
> SELECT @@read_only;
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+-------------+
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| @@read_only |
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+-------------+
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| 1 |
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+-------------+
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1 row in set (0.00 sec)
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> DROP TEMPORARY TABLE IF EXISTS i_do_no_exist;
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Query OK, 0 rows affected, 1 warning (0.00 sec)
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> SHOW WARNINGS\G
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*************************** 1. row ***************************
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Level: Note
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Code: 1051
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Message: Unknown table 'test.i_do_no_exist'
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1 row in set (0.00 sec)
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> SHOW BINLOG EVENTS;
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+------------------+------+-------------------+-----------+-------------+-------------------------------------------------------------------------------------------+
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| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
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+------------------+------+-------------------+-----------+-------------+-------------------------------------------------------------------------------------------+
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...
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| mysql-bin.000001 | 1173 | Gtid | 101 | 1211 | GTID 0-101-5 |
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| mysql-bin.000001 | 1211 | Query | 101 | 1353 | DROP TEMPORARY TABLE IF EXISTS `test`.`i_do_no_exist` /* generated by server */ |
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+------------------+------+-------------------+-----------+-------------+-------------------------------------------------------------------------------------------+
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15 rows in set (0.01 sec)
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The bug is also reported in Oracle's MySQL: https://bugs.mysql.com/bug.php?id=85258
as well as in Percona Server: https://jira.percona.com/browse/PS-1785.
The fixes from Percona Server could likely be (easily) applied to the MariaDB server:
Attachments
Issue Links
- is duplicated by
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- Closed
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