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C:/xampp/mysql/mysql-test/suite/large_tests/t/_[ Writable ]

File:C:/xampp/mysql/mysql-test/suite/large_tests/t/rpl_slave_net_timeout.test

#
#  Testing reconnecting by slave as specified by `slave_net_timeout'
#
#  Bug #50296 Slave reconnects earlier than the prescribed slave_net_timeout value
#
--source include/have_csv.inc
--source include/master-slave.inc


# save global env
connection master;
set @save_general_log = @@global.general_log;
set @save_log_output = @@global.log_output;

connection slave;
set @save_slave_net_timeout = @@global.slave_net_timeout;

connection master;
set @@global.general_log = ON;
set @@global.log_output = 'table,file';

connection slave;
--source include/stop_slave.inc
--disable_warnings
set @@global.slave_net_timeout = @@global.net_read_timeout * 2;
--enable_warnings
let $idle_time=`select @@global.slave_net_timeout * 2`;

#
# if heartbeat is disabled then reconnecting to the idle master
# should happen with `slave_net_timeout' period.
# Since it's the real time that is measured, `slave_net_timeout'
# merely guarantees that reconnecting can *not* happen earlier of a value specified.
# That is there can't an exact estimate for how many time it will happen.
#
# The following lines verify that having idle master 
# for more than 2 * slave_net_timeout seconds and 
# slave.net_read_timeout < slave_net_timeout
# won't cause reconnecting by the slave within at least 
# slave_net_timeout interval.
--replace_result $MASTER_MYPORT MASTER_PORT 
eval change master to master_host = '127.0.0.1',master_port = $MASTER_MYPORT,
master_user = 'root', master_heartbeat_period = 0;

let $slave_net_timeout = `select @@global.slave_net_timeout`;

--source include/start_slave.inc

--disable_query_log
--disable_result_log
eval select 'master is idle for ', sleep($idle_time);
--enable_result_log
--enable_query_log

--source include/stop_slave.inc

# querying general-log

connection master;

# In particular the last reconnection timestamp must be greater or equal to
# the previous one + slave_net_timeout

select event_time from (select event_time from mysql.general_log as t_1 where command_type like 'Connect' order by event_time desc limit 2) as t_2 order by event_time desc limit 1 into @ts_last;
select event_time from (select event_time from mysql.general_log as t_1 where command_type like 'Connect' order by event_time desc limit 2) as t_2 order by event_time asc limit 1 into @ts_prev;

--disable_query_log
eval select time_to_sec(@ts_last) - $slave_net_timeout >= time_to_sec(@ts_prev) into @result;
--enable_query_log

select @result as 'Must be 1';

# cleanup 

# restore global env
connection master;
set @@global.general_log = @save_general_log;
set @@global.log_output = @save_log_output;
connection slave;
set @@global.slave_net_timeout = @save_slave_net_timeout;

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Regist : 09-12-2024	Expired : 01-12-2027