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mariadb/mysql-test/main/rpl_mysqldump_slave.test
Kristian Nielsen 23c48474f7 MDEV-33212: mysqldump uses MASTER_LOG_POS with dump-slave 
The patch for MDEV-15530 incorrectly added a column in the middle of SHOW
SLAVE STATUS output. This is wrong, as it breaks backwards compatibility
with existing applications and scripts. In this case, it even broke
mariadb-dump, which is included in the server source tree!

Revert the incorrect change, putting the new Replicate_Rewrite_DB at the end
of SHOW SLAVE STATUS output.

Add a testcase for the mariadb-dump --dump-slave wrong output problem. Also
add a testcase rpl.rpl_show_slave_status to hopefully prevent any future
incorrect additions to SHOW SLAVE STATUS.

Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
2024-03-08 15:23:42 +01:00

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--source include/master-slave.inc
--echo #
--echo # New --dump-slave, --apply-slave-statements functionality
--echo #
# There is a gap between when START SLAVE returns and when MASTER_LOG_FILE and
# MASTER_LOG_POS are set. Ensure that we don't call SHOW SLAVE STATUS during
# that gap.
--sync_slave_with_master
connection master;
use test;
connection slave;
# Execute mysqldump with --dump-slave
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave test
# Execute mysqldump with --dump-slave and --apply-slave-statements
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave --apply-slave-statements test
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--replace_result $MASTER_MYPORT MASTER_MYPORT
# Execute mysqldump with --dump-slave ,--apply-slave-statements and --include-master-host-port
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave --apply-slave-statements --include-master-host-port test
#
# MDEV-5624 mysqldump --dump-slave option does not restart the replication if the dump has failed
#
start slave;
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--error 2
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave no_such_db
start slave;
--echo *** Test mysqldump --dump-slave GTID/non-gtid functionality.
--connection master
SET gtid_seq_no = 1000;
CREATE TABLE t1 (a INT PRIMARY KEY);
DROP TABLE t1;
--sync_slave_with_master
--connection slave
# Inject a local transaction on the slave to check that this is not considered
# for --dump-slave.
CREATE TABLE t2 (a INT PRIMARY KEY);
DROP TABLE t2;
--echo
--echo 1. --dump-slave=1 --gtid
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave=1 --gtid test
--echo
--echo 1a. --dump-slave=1
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave=1 test
--echo
--echo 2. --dump-slave=2 --gtid
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave=2 --gtid test
--echo
--echo 2. --dump-slave=2
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave=2 test
--echo *** Test mysqldump --master-data GTID/non-gtid functionality.
--echo
--echo 1. --master-data=1 --gtid
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --master-data=1 --gtid test
--echo
--echo 1a. --master-data=1
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --master-data=1 test
--echo
--echo 2. --master-data=2 --gtid
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --master-data=2 --gtid test
--echo
--echo 2a. --master-data=2
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --master-data=2 test
--echo
--echo 3. --master-data --single-transaction --gtid
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --master-data --single-transaction --gtid test
--echo
--echo 3a. --master-data --single-transaction
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP_SLAVE --compact --master-data --single-transaction test
--echo
--echo 4. --master-data=2 --dump-slave=2 --single-transaction --gtid (MDEV-4827)
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/ /MariaDB dump.*/MariaDB dump/ /Dump completed.*/Dump completed/ /Server version.*/Server version/
--exec $MYSQL_DUMP_SLAVE --master-data=2 --dump-slave=2 --single-transaction --gtid test
--echo
--echo
--echo 4a. --master-data=2 --dump-slave=2 --single-transaction (MDEV-4827)
--echo
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/ /MariaDB dump.*/MariaDB dump/ /Dump completed.*/Dump completed/ /Server version.*/Server version/
--exec $MYSQL_DUMP_SLAVE --master-data=2 --dump-slave=2 --single-transaction test
--echo
#
# MDEV-32611 Added test for mysqldump --delete-master-logs option.
# This options is alias of
# get binlogs: show master status -> flush logs -> purge binary logs to <new_binlog>
# sequence and this test is derived using the same pattern.
#
connection master;
CREATE TABLE t (
id int
);
insert into t values (1);
insert into t values (2);
drop table t;
--sync_slave_with_master
# MDEV-32953: Because --delete-master-logs immediately purges logs after
# flushing, it is possible the binlog dump threads will still be using the old
# log when the purge executes, disallowing the file from being deleted.
# Therefore, we temporarily stop the slave so there is no chance the old binlog
# is still being referenced. master_use_gtid=Slave_pos is necessary to still
# appear up-to-date to the master on restart after the master has flushed the
# logs (while the slave is offline). Otherwise (i.e. if using binlog file/pos),
# the slave would point to a purged log file, and receive an error immediately
# upon connecting to the master.
--source include/stop_slave.inc
change master to master_use_gtid=slave_pos;
connection master;
--echo # Ensuring the binlog dump thread is killed on primary...
--disable_query_log
--let $binlog_dump_thd_tid= `SELECT ID FROM INFORMATION_SCHEMA.PROCESSLIST WHERE COMMAND LIKE 'Binlog Dump'`
if ($binlog_dump_thd_tid)
{
--eval kill $binlog_dump_thd_tid
}
--let $wait_condition= SELECT COUNT(*)=0 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE COMMAND LIKE 'Binlog Dump'
--source include/wait_condition.inc
--enable_query_log
--let $predump_binlog_filename= query_get_value(SHOW MASTER STATUS, File, 1)
# Execute mysqldump with delete-master-logs option
--replace_regex /MASTER_LOG_POS=[0-9]+/MASTER_LOG_POS=BINLOG_START/
--exec $MYSQL_DUMP --compact --no-create-info --no-data --delete-master-logs test
--let $postdump_binlog_filename= query_get_value(SHOW MASTER STATUS, File, 1)
--let $postdump_first_binary_log_filename= query_get_value(SHOW BINARY LOGS, Log_name, 1)
if ($predump_binlog_filename == $postdump_binlog_filename)
{
--echo # predump_binlog_filename: $predump_binlog_filename
--echo # postdump_binlog_filename: $postdump_binlog_filename
--die Master state didn't change after mariadb-dump with --delete-master-logs.
}
if ($postdump_first_binary_log_filename != $postdump_binlog_filename)
{
--echo # postdump_first_binary_log_filename: $postdump_first_binary_log_filename
--echo # postdump_binlog_filename: $postdump_binlog_filename
--die Master binlog wasn't deleted after mariadb-dump with --delete-master-logs.
}
connection slave;
--source include/start_slave.inc
# MDEV-33212: mysqldump uses MASTER_LOG_POS with dump-slave
# The bug was that the MASTER_LOG_POS was wrong. So check that it is correct.
--connection master
--let $pos= query_get_value(SHOW MASTER STATUS, Position, 1)
--sync_slave_with_master
--connection master
--exec $MYSQL_DUMP_SLAVE --compact --dump-slave test >$MYSQLTEST_VARDIR/tmp/MDEV-33212.sql
--let SEARCH_RANGE=500000000
--let SEARCH_FILE=$MYSQLTEST_VARDIR/tmp/MDEV-33212.sql
--let SEARCH_PATTERN= MASTER_LOG_POS=$pos
--let SEARCH_OUTPUT=count
--source include/search_pattern_in_file.inc
--remove_file $MYSQLTEST_VARDIR/tmp/MDEV-33212.sql
--source include/rpl_end.inc
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