102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) 2019 MariaDB Corporation Ab
|
|
*
|
|
* Use of this software is governed by the Business Source License included
|
|
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
|
|
*
|
|
* Change Date: 2023-12-18
|
|
*
|
|
* On the date above, in accordance with the Business Source License, use
|
|
* of this software will be governed by version 2 or later of the General
|
|
* Public License.
|
|
*/
|
|
|
|
#include "testconnections.h"
|
|
#include <iostream>
|
|
#include <maxbase/format.hh>
|
|
|
|
using std::string;
|
|
using std::cout;
|
|
|
|
int get_master_server_id(TestConnections& test)
|
|
{
|
|
MYSQL* conn = test.maxscales->open_rwsplit_connection(0);
|
|
int id = -1;
|
|
char str[1024];
|
|
|
|
if (find_field(conn, "SELECT @@server_id, @@last_insert_id;", "@@server_id", str) == 0)
|
|
{
|
|
id = atoi(str);
|
|
}
|
|
|
|
mysql_close(conn);
|
|
return id;
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
Mariadb_nodes::require_gtid(true);
|
|
TestConnections::skip_maxscale_start(true);
|
|
|
|
TestConnections test(argc, argv);
|
|
|
|
if (test.repl->N < 4)
|
|
{
|
|
test.expect(false, "This test requires at least 4 backends.");
|
|
return test.global_result;
|
|
}
|
|
|
|
test.repl->connect();
|
|
auto server_ids = test.repl->get_all_server_ids();
|
|
|
|
// Stop the master and the last slave, then start MaxScale.
|
|
int master_ind = 0;
|
|
int last_slave_ind = 3;
|
|
|
|
string master_name = mxb::string_printf("server%i", master_ind + 1);
|
|
string slave_name = mxb::string_printf("server%i", last_slave_ind + 1);
|
|
|
|
test.tprintf("Stopping %s and %s.", master_name.c_str(), slave_name.c_str());
|
|
test.repl->stop_node(master_ind);
|
|
test.repl->stop_node(last_slave_ind);
|
|
|
|
test.tprintf("Starting MaxScale");
|
|
test.start_maxscale(0);
|
|
|
|
sleep(3);
|
|
test.maxscales->wait_for_monitor(3);
|
|
|
|
test.log_includes(0, "Performing automatic failover");
|
|
int new_master_id = get_master_server_id(test);
|
|
int expected_id1 = server_ids[1];
|
|
int expected_id2 = server_ids[2];
|
|
test.expect(new_master_id == expected_id1 || new_master_id == expected_id2,
|
|
"Unexpected master server id. Got %i when %i or %i was expected.",
|
|
new_master_id, expected_id1, expected_id2);
|
|
|
|
if (test.ok())
|
|
{
|
|
// Restart server4, check that it rejoins.
|
|
test.repl->start_node(last_slave_ind, (char*)"");
|
|
test.maxscales->wait_for_monitor(2);
|
|
|
|
auto states = test.maxscales->get_server_status(slave_name.c_str());
|
|
test.expect(states.count("Slave") == 1, "%s is not replicating as it should.", slave_name.c_str());
|
|
}
|
|
|
|
if (test.ok())
|
|
{
|
|
// Finally, bring back old master and swap to it.
|
|
test.repl->start_node(master_ind, (char*)"");
|
|
test.maxscales->wait_for_monitor(2);
|
|
|
|
test.tprintf("Switching back old master %s.", master_name.c_str());
|
|
string switchover = "call command mariadbmon switchover MariaDB-Monitor " + master_name;
|
|
test.maxscales->execute_maxadmin_command(0, switchover.c_str());
|
|
test.maxscales->wait_for_monitor(2);
|
|
new_master_id = get_master_server_id(test);
|
|
test.expect(new_master_id == server_ids[master_ind], "Switchover to original master failed.");
|
|
}
|
|
return test.global_result;
|
|
}
|