mariadb/mysql-test/suite/rpl/t/rpl_upgrade_master_info.test
Kristian Nielsen 1cf852d874 MDEV-9383: Server fails to read master.info after upgrade 10.0 -> 10.1
In some cases, MariaDB 10.0 could write a master.info file that was read
incorrectly by 10.1 and could cause server to fail to start after an upgrade.

(If writing a new master.info file that is shorter than the old, extra
junk may remain at the end of the file. This is handled properly in
10.1 with an END_MARKER line, but this line is not written by
10.0. The fix here is to make 10.1 robust at reading the master.info
files written by 10.0).

Fix several things around reading master.info and read_mi_key_from_file():

 - read_mi_key_from_file() did not distinguish between a line with and
   without an eqals '=' sign.

 - If a line was empty, read_mi_key_from_file() would incorrectly return
   the key from the previous call.

 - An extra using_gtid=X line left-over by MariaDB 10.0 might incorrectly
   be read and overwrite the correct value.

 - Fix incorrect usage of strncmp() which should be strcmp().

 - Add test cases.
2016-04-08 10:31:03 +02:00

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Text

--source include/master-slave.inc
--echo *** MDEV-9383: Server fails to read master.info after upgrade 10.0 -> 10.1 ***
--connection slave
--source include/stop_slave.inc
CHANGE MASTER TO master_use_gtid=CURRENT_POS;
--let $datadir= `SELECT @@datadir`
--let $rpl_server_number= 2
--source include/rpl_stop_server.inc
--remove_file $datadir/master.info
--copy_file $MYSQL_TEST_DIR/std_data/bad_master.info $datadir/master.info
--let $rpl_server_number= 2
--source include/rpl_start_server.inc
--source include/wait_until_connected_again.inc
--connection master
CREATE TABLE t1 (a INT PRIMARY KEY);
INSERT INTO t1 VALUES (1);
--source include/save_master_gtid.inc
--connection slave
# Fix the port after we replaced master.info.
--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
SELECT * FROM t1;
--source include/stop_slave.inc
--let $rpl_server_number= 2
--source include/rpl_stop_server.inc
--remove_file $datadir/master.info
--copy_file $MYSQL_TEST_DIR/std_data/bad2_master.info $datadir/master.info
--let $rpl_server_number= 2
--source include/rpl_start_server.inc
--source include/wait_until_connected_again.inc
--connection master
INSERT INTO t1 VALUES (2);
--source include/save_master_gtid.inc
--connection slave
# Fix the port after we replaced master.info.
--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
SELECT * FROM t1 ORDER BY a;
--source include/stop_slave.inc
--let $rpl_server_number= 2
--source include/rpl_stop_server.inc
--remove_file $datadir/master.info
--copy_file $MYSQL_TEST_DIR/std_data/bad3_master.info $datadir/master.info
--let $rpl_server_number= 2
--source include/rpl_start_server.inc
--source include/wait_until_connected_again.inc
--connection master
INSERT INTO t1 VALUES (3);
--source include/save_master_gtid.inc
--connection slave
# Fix the port after we replaced master.info.
--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
SELECT * FROM t1 ORDER BY a;
--source include/stop_slave.inc
--let $rpl_server_number= 2
--source include/rpl_stop_server.inc
--remove_file $datadir/master.info
--copy_file $MYSQL_TEST_DIR/std_data/bad4_master.info $datadir/master.info
--let $rpl_server_number= 2
--source include/rpl_start_server.inc
--source include/wait_until_connected_again.inc
--connection master
INSERT INTO t1 VALUES (4);
--source include/save_master_gtid.inc
--connection slave
# Fix the port after we replaced master.info.
--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
SELECT * FROM t1 ORDER BY a;
--source include/stop_slave.inc
--let $rpl_server_number= 2
--source include/rpl_stop_server.inc
--remove_file $datadir/master.info
--copy_file $MYSQL_TEST_DIR/std_data/bad5_master.info $datadir/master.info
--let $rpl_server_number= 2
--source include/rpl_start_server.inc
--source include/wait_until_connected_again.inc
--connection master
INSERT INTO t1 VALUES (5);
--source include/save_master_gtid.inc
--connection slave
# Fix the port after we replaced master.info.
--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
SELECT * FROM t1 ORDER BY a;
--source include/stop_slave.inc
--let $rpl_server_number= 2
--source include/rpl_stop_server.inc
--remove_file $datadir/master.info
--copy_file $MYSQL_TEST_DIR/std_data/bad6_master.info $datadir/master.info
--let $rpl_server_number= 2
--source include/rpl_start_server.inc
--source include/wait_until_connected_again.inc
--connection master
INSERT INTO t1 VALUES (6);
--source include/save_master_gtid.inc
--connection slave
# Fix the port after we replaced master.info.
--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1;
--source include/start_slave.inc
--source include/sync_with_master_gtid.inc
SELECT * FROM t1 ORDER BY a;
# Cleanup
--connection master
DROP TABLE t1;
--source include/rpl_end.inc