# Verify that after CHANGE MASTER, replication (I/O thread and SQL
# thread) restart from where SQL thread left, not from where
# I/O thread left (some old bug fixed in 4.0.17)

source include/master-slave.inc;
call mtr.add_suppression("Slave I/O: The slave I/O thread stops because a fatal error is encountered when it tried to SET @master_binlog_checksum");

connection master;
# Make SQL slave thread advance a bit
create table t1(n int);
sync_slave_with_master;
select * from t1;
# Now stop it and make I/O slave thread be ahead
stop slave sql_thread;
connection master;
insert into t1 values(1);
insert into t1 values(2);
save_master_pos;
let $slave_param= Read_Master_Log_Pos;
let $slave_param_value= query_get_value(SHOW MASTER STATUS, Position, 1);
connection slave;
source include/wait_for_slave_param.inc;
source include/stop_slave.inc;

let $read_pos= query_get_value(SHOW SLAVE STATUS, Read_Master_Log_Pos, 1);
let $exec_pos= query_get_value(SHOW SLAVE STATUS, Exec_Master_Log_Pos, 1);
if ($read_pos == $exec_pos)
{
  source include/show_rpl_debug_info.inc;
  echo 'Read_Master_Log_Pos: $read_pos' == 'Exec_Master_Log_Pos: $exec_pos';
  die Failed because Read_Master_Log_Pos is equal to Exec_Master_Log_Pos;
} 
change master to master_user='root';
let $read_pos= query_get_value(SHOW SLAVE STATUS, Read_Master_Log_Pos, 1);
let $exec_pos= query_get_value(SHOW SLAVE STATUS, Exec_Master_Log_Pos, 1);
if ($read_pos != $exec_pos)
{
  source include/show_rpl_debug_info.inc;
  echo 'Read_Master_Log_Pos: $read_pos' <> 'Exec_Master_Log_Pos: $exec_pos';
  die Failed because Read_Master_Log_Pos is not equal to Exec_Master_Log_Pos;
}

start slave;
sync_with_master;
select * from t1;
connection master;
drop table t1;
sync_slave_with_master;

# End of 4.1 tests

#
# BUG#12190 CHANGE MASTER has differ path requiremts on MASTER_LOG_FILE and RELAY_LOG_FILE
#

if ($bug_59037_is_fixed == 'true') {
--source include/rpl_reset.inc

connection master;
create table t1 (a int);
insert into t1 values (1);
flush logs;
insert into t1 values (2);

# Note: the master positon saved by this will also be used by the
# 'sync_with_master' below.
sync_slave_with_master;

# Check if the table t1 and t2 are identical on master and slave;
let $diff_tables= master:t1,slave:t1
source include/diff_tables.inc;

connection slave;
source include/stop_slave.inc;
delete from t1 where a=2;

# start replication from the second insert, after fix of BUG#12190,
# relay_log_file does not use absolute path, only the filename is
# required
#
# Note: the follow change master will automatically reset
# relay_log_purge to false, save the old value to restore
let $relay_log_purge= `select @@global.relay_log_purge`;
CHANGE MASTER TO relay_log_file='slave-relay-bin.000005', relay_log_pos=4;
start slave sql_thread;
source include/wait_for_slave_sql_to_start.inc;

# Sync to the same position saved by the 'sync_slave_with_master' above.
sync_with_master;

# Check if the table t1 and t2 are identical on master and slave;
let $diff_tables= master:t1,slave:t1
source include/diff_tables.inc;

# clean up
connection slave;
start slave io_thread;
source include/wait_for_slave_io_to_start.inc;
eval set global relay_log_purge=$relay_log_purge;
connection master;
drop table t1;
}

--connection master
# MDEV-22741: *SAN: ERROR: AddressSanitizer: use-after-poison on address in
# instrings/strmake.c:36 from change_master (on optimized builds)
CHANGE MASTER TO MASTER_USER='root', MASTER_SSL=0, MASTER_SSL_CA='', MASTER_SSL_CERT='',
  MASTER_SSL_KEY='', MASTER_SSL_CRL='', MASTER_SSL_CRLPATH='';
CHANGE MASTER TO MASTER_USER='root', MASTER_PASSWORD='', MASTER_SSL=0;


--source include/rpl_end.inc
