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eb152f86af
IN TIME RECOVERY FAILURE ON SLAVES Problem: DROP TEMP TABLE IF EXISTS commands can cause point in time recovery (re-applying binlog) failures. Analyses: In RBR, 'DROP TEMPORARY TABLE' commands are always binlogged by adding 'IF EXISTS' clauses. Also, the slave SQL thread will not check replicate.* filter rules for "DROP TEMPORARY TABLE IF EXISTS" queries. If log-slave-updates is enabled on slave, these queries will be binlogged in the format of "USE `db`; DROP TEMPORARY TABLE IF EXISTS `t1`;" irrespective of filtering rules and irrespective of the `db` existence. When users try to recover slave from it's own binlog, use `db` command might fail if `db` is not present on slave. Fix: At the time of writing the 'DROP TEMPORARY TABLE IF EXISTS' query into the binlog, 'use `db`' will not be present and the table name in the query will be a fully qualified table name. Eg: 'USE `db`; DROP TEMPORARY TABLE IF EXISTS `t1`;' will be logged as 'DROP TEMPORARY TABLE IF EXISTS `db`.`t1`;'.
198 lines
7.9 KiB
Plaintext
198 lines
7.9 KiB
Plaintext
set binlog_format=statement;
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reset master;
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create database testing_1;
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use testing_1;
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create table t1 (a int);
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create function sf1 (a int) returns int return a+1;
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create trigger tr1 before insert on t1 for each row insert into t2 values (2*new.a);
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create procedure sp1 (a int) insert into t1 values(a);
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drop database testing_1;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # create database testing_1
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master-bin.000001 # Query # # use `testing_1`; create table t1 (a int)
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` FUNCTION `sf1`(a int) RETURNS int(11)
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return a+1
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` trigger tr1 before insert on t1 for each row insert into t2 values (2*new.a)
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` PROCEDURE `sp1`(a int)
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insert into t1 values(a)
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master-bin.000001 # Query # # drop database testing_1
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use test;
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reset master;
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create temporary table tt1 (a int);
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create table t1 (a int);
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insert into t1 values (1);
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drop database if exists mysqltest1;
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insert into t1 values (1);
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drop table tt1, t1;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; create temporary table tt1 (a int)
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master-bin.000001 # Query # # use `test`; create table t1 (a int)
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; insert into t1 values (1)
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # drop database if exists mysqltest1
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; insert into t1 values (1)
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # use `test`; DROP TEMPORARY TABLE `tt1` /* generated by server */
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master-bin.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
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FLUSH STATUS;
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#
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# Bug#11765416 58381: FAILED DROP DATABASE CAN BREAK STATEMENT
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# BASED REPLICATION
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#
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DROP DATABASE IF EXISTS db1;
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DROP TABLE IF EXISTS t3;
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 (a INT);
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CREATE TABLE db1.t2 (b INT, KEY(b)) engine=innodb;
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CREATE TABLE t3 (a INT, KEY (a), FOREIGN KEY(a) REFERENCES db1.t2(b))
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engine=innodb;
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RESET MASTER;
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DROP DATABASE db1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
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SHOW TABLES FROM db1;
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Tables_in_db1
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t2
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `db1`; DROP TABLE `t1`
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DROP TABLE t3;
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DROP DATABASE db1;
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set binlog_format=mixed;
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reset master;
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create database testing_1;
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use testing_1;
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create table t1 (a int);
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create function sf1 (a int) returns int return a+1;
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create trigger tr1 before insert on t1 for each row insert into t2 values (2*new.a);
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create procedure sp1 (a int) insert into t1 values(a);
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drop database testing_1;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # create database testing_1
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master-bin.000001 # Query # # use `testing_1`; create table t1 (a int)
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` FUNCTION `sf1`(a int) RETURNS int(11)
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return a+1
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` trigger tr1 before insert on t1 for each row insert into t2 values (2*new.a)
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` PROCEDURE `sp1`(a int)
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insert into t1 values(a)
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master-bin.000001 # Query # # drop database testing_1
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use test;
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reset master;
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create temporary table tt1 (a int);
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create table t1 (a int);
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insert into t1 values (1);
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drop database if exists mysqltest1;
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insert into t1 values (1);
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drop table tt1, t1;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; create temporary table tt1 (a int)
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master-bin.000001 # Query # # use `test`; create table t1 (a int)
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; insert into t1 values (1)
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # drop database if exists mysqltest1
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; insert into t1 values (1)
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # use `test`; DROP TEMPORARY TABLE `tt1` /* generated by server */
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master-bin.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
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FLUSH STATUS;
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#
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# Bug#11765416 58381: FAILED DROP DATABASE CAN BREAK STATEMENT
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# BASED REPLICATION
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#
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DROP DATABASE IF EXISTS db1;
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DROP TABLE IF EXISTS t3;
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 (a INT);
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CREATE TABLE db1.t2 (b INT, KEY(b)) engine=innodb;
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CREATE TABLE t3 (a INT, KEY (a), FOREIGN KEY(a) REFERENCES db1.t2(b))
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engine=innodb;
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RESET MASTER;
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DROP DATABASE db1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
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SHOW TABLES FROM db1;
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Tables_in_db1
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t2
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `db1`; DROP TABLE `t1`
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DROP TABLE t3;
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DROP DATABASE db1;
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set binlog_format=row;
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reset master;
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create database testing_1;
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use testing_1;
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create table t1 (a int);
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create function sf1 (a int) returns int return a+1;
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create trigger tr1 before insert on t1 for each row insert into t2 values (2*new.a);
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create procedure sp1 (a int) insert into t1 values(a);
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drop database testing_1;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # create database testing_1
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master-bin.000001 # Query # # use `testing_1`; create table t1 (a int)
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` FUNCTION `sf1`(a int) RETURNS int(11)
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return a+1
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` trigger tr1 before insert on t1 for each row insert into t2 values (2*new.a)
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master-bin.000001 # Query # # use `testing_1`; CREATE DEFINER=`root`@`localhost` PROCEDURE `sp1`(a int)
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insert into t1 values(a)
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master-bin.000001 # Query # # drop database testing_1
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use test;
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reset master;
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create temporary table tt1 (a int);
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create table t1 (a int);
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insert into t1 values (1);
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drop database if exists mysqltest1;
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insert into t1 values (1);
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drop table tt1, t1;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; create table t1 (a int)
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # drop database if exists mysqltest1
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # DROP TEMPORARY TABLE IF EXISTS `test`.`tt1` /* generated by server */
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master-bin.000001 # Query # # use `test`; DROP TABLE `t1` /* generated by server */
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FLUSH STATUS;
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#
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# Bug#11765416 58381: FAILED DROP DATABASE CAN BREAK STATEMENT
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# BASED REPLICATION
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#
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DROP DATABASE IF EXISTS db1;
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DROP TABLE IF EXISTS t3;
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 (a INT);
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CREATE TABLE db1.t2 (b INT, KEY(b)) engine=innodb;
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CREATE TABLE t3 (a INT, KEY (a), FOREIGN KEY(a) REFERENCES db1.t2(b))
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engine=innodb;
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RESET MASTER;
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DROP DATABASE db1;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
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SHOW TABLES FROM db1;
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Tables_in_db1
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t2
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `db1`; DROP TABLE `t1`
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DROP TABLE t3;
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DROP DATABASE db1;
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show databases;
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Database
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information_schema
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mtr
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mysql
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performance_schema
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test
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