MINI MINI MANI MO

# ==== Purpose ====
#
# Test verifies that forced sync master info doesn't happen on a
# heartbeat/fakerotate event.
#
# ==== Implementation ====
#
# Generate some transactions on master so that they are replicated and applied
# on slave. This will ensure that GITD_EXECUTED set is updated on slave.
#
# Stop and restart the slave. Receiver thread will invoke 'com_binlog_dump_gtid'
# function call which provides existing GTID specific information on slave to
# master.
#
# Master will skip all the GTID events that are present on slave and will
# generate a HEARTBEAT event which contains the master_log_file and
# master_log_pos at which the skipped events end.
#
# Upon receiving the HEARTBEAT event store the write requests that are made to
# 'slave_master_info' table, in a variable. This value is used to verify the
# write request to 'slave_master_info' after the HEARTBEAT event is processed.
#
# Apply the HEARTBEAT event and verify that no additional write request is
# made during HEARTBEAT event processing.
#
# ==== References ====
#
# Bug#28815555: HEARTBEATS/FAKEROTATE CAUSE A FORCED SYNC_MASTER_INFO
#

--source include/have_debug.inc
--source include/have_debug_sync.inc
# Gtids are mandatory for the test.
--source include/have_gtid.inc
--source include/master-slave.inc

--source include/rpl_connection_slave.inc
# Enable performance schema monitoring for mysql schema
--source include/stop_slave.inc
UPDATE performance_schema.setup_objects SET ENABLED='yes', TIMED='yes' WHERE OBJECT_TYPE='TABLE' and OBJECT_SCHEMA='mysql';
--source include/start_slave.inc

--source include/rpl_connection_master.inc
CREATE TABLE t1 (f INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (20);
INSERT INTO t1 VALUES (30);
--source include/sync_slave_sql_with_master.inc

--source include/stop_slave.inc
SET GLOBAL debug="+d,reached_heart_beat_queue_event";
START SLAVE;
SET DEBUG_SYNC="now WAIT_FOR check_slave_master_info";
let $sync_master_info_before= query_get_value(SELECT count_star FROM performance_schema.table_io_waits_summary_by_table WHERE object_schema='mysql' AND object_type='table' AND object_name='slave_master_info', count_star, 1);
SET DEBUG_SYNC="now SIGNAL proceed_write_rotate";
SET GLOBAL debug="-d,reached_heart_beat_queue_event";

--source include/rpl_connection_master.inc
--source include/sync_slave_sql_with_master.inc

let $sync_master_info_after= query_get_value(SELECT count_star FROM performance_schema.table_io_waits_summary_by_table WHERE object_schema='mysql' AND object_type='table' AND object_name='slave_master_info', count_star, 1);

--let $assert_text= Assert that sync_master_info io_requests are the same
--let $assert_cond= $sync_master_info_before = $sync_master_info_after
--source include/assert.inc

--let $diff_tables=master:t1, slave:t1
--source include/diff_tables.inc

# Clean up
--source include/stop_slave.inc
UPDATE performance_schema.setup_objects SET ENABLED='no', TIMED='no' WHERE OBJECT_TYPE='TABLE' and OBJECT_SCHEMA='mysql';
--source include/start_slave.inc

--source include/rpl_connection_master.inc
DROP TABLE t1;

--source include/rpl_end.inc