# Testing master to slave heartbeat protocol
#
# Including:
# - user interface, grammar, checking the range and warnings about
#   unreasonable values for the heartbeat period
# - no rotation of relay log if heartbeat is less that replica_net_timeout
# - SELECT  COUNT_RECEIVED_HEARTBEATS FROM p_S.replication_connection_status
# - SELECT  HEARTBEAT_INTERVAL FROM p_s.replication_connection_configuration
# - SELECT LAST_HEARTBEAT_TIMESTAMP FROM p_s.replication_connection_status

--source include/not_group_replication_plugin.inc
--let $rpl_skip_start_slave= 1
--let $rpl_skip_reset_master_and_slave= 1
--let $rpl_skip_change_master= 1
--source include/master-slave.inc

--let $rpl_connection_name= slave
--source include/rpl_connection.inc

set @restore_replica_net_timeout= @@global.replica_net_timeout;
set @@global.replica_net_timeout= 10;

#
# check for null value of the last_heartbeat_timestamp variable when the slave is not enabled
#
--query_vertical SELECT LAST_HEARTBEAT_TIMESTAMP FROM performance_schema.replication_connection_status

###
### Checking the range
###

#
# default period replica_net_timeout/2
#
--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root';
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

#
# the max for the heartbeat_interval is ULONG_MAX/1000; an attempt to exceed it is  denied
#
--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
--error ER_REPLICA_HEARTBEAT_VALUE_OUT_OF_RANGE
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 4294968;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

#
# the min value for the heartbeat_interval is 1 millisecond an attempt to assign a
# lesser will be warned with treating the value as zero
#
--let $rpl_connection_name= slave
--source include/rpl_connection.inc

--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
### 5.1 mtr does not have --warning ER_REPLICA_HEARTBEAT_VALUE_OUT_OF_RANGE
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 0.0009999;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

#
# the actual max and min must be accepted
#
--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 4294967;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 0.001;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

reset slave;

#
# A warning if heartbeat_interval greater than replica_net_timeout
#
set @@global.replica_net_timeout= 5;
--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 5.001;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

reset slave;

#
# A warning if replica_net_timeout is set to less than the current HB period
#
set @@global.replica_net_timeout= 5;
--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 4;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration
set @@global.replica_net_timeout= 3 /* must be a warning */;

reset slave;

###
### checking no rotation
###

--let $rpl_connection_name= master
--source include/rpl_connection.inc
--disable_warnings
drop table if exists t1;
--enable_warnings
#
# Even though master_heartbeat_period= 0.5 is 20 times less than
# @@global.replica_net_timeout= 10 in some circumstances master will
# not be able to send any heartbeat during the slave's net timeout
# and slave's relay log will rotate.
# The probability for such a scenario is pretty small so the following
# part is almost deterministic.
#

--let $rpl_connection_name= slave
--source include/rpl_connection.inc
set @@global.replica_net_timeout= 10;
--replace_result $MASTER_MYPORT SOURCE_PORT
# no error this time but rather a warning
--replace_column 2 ####
eval CHANGE REPLICATION SOURCE to SOURCE_HOST='127.0.0.1',SOURCE_PORT=$MASTER_MYPORT, SOURCE_USER='root', SOURCE_HEARTBEAT_PERIOD= 0.5;
--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

start slave;

--let $rpl_connection_name= master
--source include/rpl_connection.inc
create table t1 (f1 int);

--source include/sync_slave_sql_with_master.inc

let $slave_param= Relay_Log_File;
let $slave_param_value= query_get_value(SHOW SLAVE STATUS, Relay_Log_File, 1);

# there is an explicit sleep lasting longer than replica_net_timeout
# to ensure that nothing will come to slave from master for that period.
# That would cause reconnecting and relaylog rotation w/o the fix i.e
# without a heartbeat received.

sleep 15;

# check (compare with the previous show's results) that no rotation happened
source include/check_slave_param.inc;

###
### Check the values of HEARTBEAT_INTERVAL and COUNT_RECEIVED_HEARTBEATS
###

--query_vertical SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration

#
# proof that there has been received at least one heartbeat;
# The exact number of received heartbeat is an indeterministic value
# and therefore it's not recorded into results.
#

# Checking the fact that at least one heartbeat is received
--let $wait_condition = SELECT COUNT_RECEIVED_HEARTBEATS > 0 FROM performance_schema.replication_connection_status
--source include/wait_condition.inc

--echo A heartbeat has been received by the slave

#
# check for non-null value of the last_heartbeat_timestamp variable when the slave is enabled
#
--let $assert_text= last_heartbeat_timestamp should not be empty
--let $assert_cond= \'[SELECT LAST_HEARTBEAT_TIMESTAMP FROM performance_schema.replication_connection_status]\' != ""
--source include/assert.inc

# cleanup

--let $rpl_connection_name= master
--source include/rpl_connection.inc
drop table t1;

--source include/sync_slave_sql_with_master.inc
set @@global.replica_net_timeout= @restore_replica_net_timeout;


# ==== Bug#18185490: IF MASTER_HEARTBEAT_PERIOD OPTION IS NOT PROVIDED IT IS AUTO SETTING TO DEFAULT ====

# Change master was always resetting the heartbeat_interval to default value
# and count_received_heartbeats to 0 on change master. After the bug fix,
# change master should only change heartbeat_interval if the corresponding option
# is given and never change count_received_heartbeats

--let $rpl_connection_name= slave
--source include/rpl_connection.inc
--source include/stop_slave.inc

CHANGE REPLICATION SOURCE TO SOURCE_HEARTBEAT_PERIOD= 10;

--let $assert_text= HEARTBEAT_INTERVAL should be 10.000
--let $assert_cond= [SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = 10.000
--source include/assert.inc

--echo
--echo # Verify that heartbeat period is not reset to default implicitly and
--echo # received_heartbeat is not set to 0 by this.
--echo

CHANGE REPLICATION SOURCE TO SOURCE_RETRY_COUNT= 3;

--let $assert_text= HEARTBEAT_INTERVAL should be 10.000
--let $assert_cond= [SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = 10.000
--source include/assert.inc

--let $assert_text= COUNT_RECEIVED_HEARTBEATS should NOT be set to 0
--let $assert_cond= [SELECT COUNT_RECEIVED_HEARTBEATS FROM performance_schema.replication_connection_status] <> 0
--source include/assert.inc


###############################################################################
# BUG#18777899 HEARTBEAT_PERIOD AUTOMATICALLY SETS TO DEFAULT POST RESET SLAVE
#              COMMAND
#
# Due to the buggy behaviour, a RESET SLAVE command on the slave server
# reset heartbeat_period to default. RESET SLAVE is generally expected to
# delete slave logs and forget the replicaiton positions. This erroneous
# behavior was therefore un-intuitive.
#
# In the test we test the behaviour of heartbeat_period with RESET SLAVE,
# STOP SLAVE, CHANGE MASTER, START SLAVE and RESET SLAVE ALL.
#
# 1. RESET SLAVE:
#    ===========
#
#    Execute a RESET SLAVE and verify that the heartbeat_period is what we
#    set in the latest CHANGE MASTER and not the the default value.
#
# 2. CHANGE MASTER, START SLAVE:
#    ==========================
#
# a. Changing host resets heartbeat_period to default.
# b. Changing port resets heartbeat_period to default.
# c. changing host and port resets heartbeat_period to default.
#
# 3. RESET SLAVE ALL:
#    ===============
#
#    Execute a RESET SLAVE ALL and verify that the heartbeat_period is set to 0.
###############################################################################

--source include/stop_slave.inc
RESET SLAVE;
RESET MASTER;

--let $MASTER_AUTO_POSITION=SOURCE_AUTO_POSITION=0
if (`SELECT @@GLOBAL.gtid_mode = 'ON'`)
{
  --let $MASTER_AUTO_POSITION=SOURCE_AUTO_POSITION=1
}
--replace_result $MASTER_AUTO_POSITION SOURCE_AUTO_POSITION
--eval CHANGE REPLICATION SOURCE TO $MASTER_AUTO_POSITION

--source include/start_slave.inc

--let $assert_cond= [SELECT  HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = 10.000
--let $assert_text= HEARTBEAT_INTERVAL should still be 10.000 after RESET SLAVE.
--source include/assert.inc

--source include/stop_slave_io.inc
--replace_result $MASTER_MYPORT SOURCE_PORT
eval CHANGE REPLICATION SOURCE TO SOURCE_HOST= 'localhost', SOURCE_PORT= $MASTER_MYPORT;
--source include/start_slave.inc

--let $default_heartbeat_period= @@global.replica_net_timeout/2;
--let $assert_cond= [SELECT  HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = $default_heartbeat_period
--let $assert_text= HEARTBEAT_INTERVAL should reset to default.
--source include/assert.inc

--echo #
--echo # Change from default to make sure changing HOST resets heartbeat_interval
--echo # to default.
--echo #
--source include/stop_slave_io.inc
CHANGE REPLICATION SOURCE TO SOURCE_HEARTBEAT_PERIOD = 10;
--source include/start_slave.inc

# The DROP TABLE below is a transaction that will make MTS to be synced
# properly on very slow systems.
--connection master
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--source include/sync_slave_sql_with_master.inc

--source include/stop_slave.inc
eval CHANGE REPLICATION SOURCE TO SOURCE_HOST= '127.0.0.1';
--source include/start_slave.inc

--let $assert_cond= [SELECT  HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = $default_heartbeat_period
--let $assert_text= heartbeat_interval should reset to default on changing host.
--source include/assert.inc

# The DROP TABLE below is a transaction that will make MTS to be synced
# properly on very slow systems.
--connection master
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--source include/sync_slave_sql_with_master.inc

--echo #
--echo # Change from default to make sure changing PORT resets heartbeat_interval
--echo # to default.
--echo #
--source include/stop_slave.inc
--replace_result $MASTER_MYPORT SOURCE_PORT
CHANGE REPLICATION SOURCE TO SOURCE_HEARTBEAT_PERIOD = 10;
--source include/start_slave.inc

# The DROP TABLE below is a transaction that will make MTS to be synced
# properly on very slow systems.
--connection master
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--source include/sync_slave_sql_with_master.inc

--source include/stop_slave.inc
--replace_result $MASTER_MYPORT SOURCE_PORT
eval CHANGE REPLICATION SOURCE TO SOURCE_PORT= $MASTER_MYPORT;
--source include/start_slave.inc

--let $assert_cond= [SELECT  HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = $default_heartbeat_period
--let $assert_text= heartbeat_interval should reset to default on changing port.
--source include/assert.inc

# The DROP TABLE below is a transaction that will make MTS to be synced
# properly on very slow systems.
--connection master
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--source include/sync_slave_sql_with_master.inc

--echo #
--echo # Change from default to make sure changing HOST and PORT resets
--echo # heartbeat_period to default.
--echo #
--source include/stop_slave.inc
--replace_result $MASTER_MYPORT SOURCE_PORT
eval CHANGE REPLICATION SOURCE TO SOURCE_HOST= '127.0.0.1', SOURCE_PORT= $MASTER_MYPORT;
--source include/start_slave.inc

--let $assert_cond= [SELECT  HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration] = $default_heartbeat_period
--let $assert_text= heartbeat_interval should reset to default on changing host and port.
--source include/assert.inc

# The DROP TABLE below is a transaction that will make MTS to be synced
# properly on very slow systems.
--connection master
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--source include/sync_slave_sql_with_master.inc

--source include/stop_slave.inc
RESET SLAVE ALL;

--let $assert_cond= \'[SELECT HEARTBEAT_INTERVAL FROM performance_schema.replication_connection_configuration]\' = ""
--let $assert_text= heartbeat_interval should reset to zero by RESET SLAVE ALL.
--source include/assert.inc

# Make this a slave again to successfully pass through cleanup routines.
--replace_result $MASTER_MYPORT SOURCE_PORT
--replace_column 2 ####
--eval CHANGE REPLICATION SOURCE to SOURCE_HOST= '127.0.0.1', SOURCE_PORT= $MASTER_MYPORT, SOURCE_USER= 'root'

# The table might have replicated again after RESET SLAVE.
--source include/start_slave.inc
--connection master
--disable_warnings
DROP TABLE IF EXISTS t1;
--source include/sync_slave_sql_with_master.inc
--enable_warnings

--source include/rpl_end.inc