Warning 1624 The current value for master_heartbeat_period exceeds the new value of `slave_net_timeout' sec. A sensible value for the period should be less than the timeout.
SET @@global.slave_net_timeout=@restore_slave_net_timeout;
RESET SLAVE;
*** Warning if updated slave_heartbeat_timeout > slave_net_timeout ***
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=SLAVE_NET_TIMEOUT;
Warnings:
Warning 1624 The requested value for the heartbeat period exceeds the value of `slave_net_timeout' sec. A sensible value for the period should be less than the timeout.
RESET SLAVE;
*** CHANGE MASTER statement only updates slave_heartbeat_period ***
SET @@global.slave_net_timeout=20;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=5;
SHOW VARIABLES LIKE 'slave_net_timeout';
Variable_name Value
slave_net_timeout 20
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 5.000
SET @@global.slave_net_timeout=2*@@global.slave_net_timeout;
SHOW VARIABLES LIKE 'slave_net_timeout';
Variable_name Value
slave_net_timeout 40
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 5.000
SET @@global.slave_net_timeout=@restore_slave_net_timeout;
RESET SLAVE;
*** Update slave_net_timeout on master ***
SET @@global.slave_net_timeout=500;
SET @@global.slave_net_timeout=200;
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root';
include/start_slave.inc
SHOW VARIABLES LIKE 'slave_net_timeout';
Variable_name Value
slave_net_timeout 200
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 100.000
SET @@global.slave_net_timeout=@restore_slave_net_timeout;
include/stop_slave.inc
RESET SLAVE;
SET @@global.slave_net_timeout=@restore_slave_net_timeout;
*** Start/stop slave ***
SET @@global.slave_net_timeout=100;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=20;
include/start_slave.inc
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 20.000
include/stop_slave.inc
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 20.000
*** Reload slave ***
SET @@global.slave_net_timeout=50;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=30;
Reload slave
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 30.000
SET @restore_slave_net_timeout=@@global.slave_net_timeout;
*** Disable heartbeat ***
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=0;
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 0.000
SHOW STATUS LIKE 'slave_received_heartbeats';
Variable_name Value
Slave_received_heartbeats 0
include/start_slave.inc
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 0.000
SHOW STATUS LIKE 'slave_received_heartbeats';
Variable_name Value
Slave_received_heartbeats 0
include/stop_slave.inc
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 0.000
SHOW STATUS LIKE 'slave_received_heartbeats';
Variable_name Value
Slave_received_heartbeats 0
RESET SLAVE;
SELECT SLAVE_HEARTBEAT_TIMEOUT = 0 AS Result;
Result
0
*** Min slave_heartbeat_timeout ***
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=0.001;
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 0.001
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=0.0009;
Warnings:
Warning 1624 The requested value for the heartbeat period is less than 1 msec. The period is reset to zero which means no heartbeats will be sending
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 0.000
RESET SLAVE;
*** Max slave_heartbeat_timeout ***
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=4294967;
Warnings:
Warning 1624 The requested value for the heartbeat period exceeds the value of `slave_net_timeout' sec. A sensible value for the period should be less than the timeout.
SHOW GLOBAL STATUS LIKE 'slave_heartbeat_period';
Variable_name Value
Slave_heartbeat_period 4294967.000
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=4294968;
ERROR HY000: The requested value for the heartbeat period is negative or exceeds the maximum 4294967 seconds
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=8589935;
ERROR HY000: The requested value for the heartbeat period is negative or exceeds the maximum 4294967 seconds
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=4294967296;
ERROR HY000: The requested value for the heartbeat period is negative or exceeds the maximum 4294967 seconds
RESET SLAVE;
*** Misc incorrect values ***
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD='-1';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''-1'' at line 1
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD='123abc';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''123abc'' at line 1
RESET SLAVE;
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD='';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '''' at line 1
RESET SLAVE;
*** Running slave ***
CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_PORT, MASTER_USER='root', MASTER_HEARTBEAT_PERIOD=0.1;
include/start_slave.inc
Heartbeat event received
*** Stopped slave ***
include/stop_slave.inc
Number of received heartbeat events while slave stopped: 0
*** Started slave ***
include/start_slave.inc
Heartbeat event received
*** Stopped IO thread ***
STOP SLAVE IO_THREAD;
Number of received heartbeat events while io thread stopped: 0
*** Started IO thread ***
START SLAVE IO_THREAD;
Heartbeat event received
*** Stopped SQL thread ***
STOP SLAVE SQL_THREAD;
Heartbeat events are received while sql thread stopped (1 means 'yes'): 1
*** Started SQL thread ***
START SLAVE SQL_THREAD;
Heartbeat event received
*** Stopped SQL thread by error ***
CREATE TABLE t1 (a INT PRIMARY KEY, b VARCHAR(10), c LONGTEXT);
INSERT INTO t1 VALUES (1, 'on slave', NULL);
INSERT INTO t1 VALUES (1, 'on master', NULL);
Heartbeat events are received while sql thread stopped (1 means 'yes'): 1