MaxScale/maxscale-system-test/mxs2187_multi_replay.cpp
Markus Mäkelä a15aab610a
MXS-2187: Add test case
The test checks that a single transaction can survive multiple master
failovers.
2018-11-27 12:52:45 +02:00

97 lines
2.7 KiB
C++

/**
* MXS-1507: Test inconsistent result detection
*
* https://jira.mariadb.org/browse/MXS-1507
*/
#include "testconnections.h"
#include <functional>
#include <iostream>
#include <vector>
using namespace std;
int main(int argc, char** argv)
{
Mariadb_nodes::require_gtid(true);
TestConnections test(argc, argv);
auto query = [&](string q) {
return execute_query_silent(test.maxscales->conn_rwsplit[0], q.c_str()) == 0;
};
auto ok = [&](string q) {
test.expect(query(q),
"Query '%s' should work: %s",
q.c_str(),
mysql_error(test.maxscales->conn_rwsplit[0]));
};
auto kill_master = [&]() {
test.repl->connect();
int master = test.repl->find_master();
test.repl->disconnect();
test.repl->block_node(master);
test.maxscales->wait_for_monitor(3);
test.repl->unblock_node(master);
test.maxscales->wait_for_monitor(3);
};
// Create a table
test.maxscales->connect();
ok("CREATE OR REPLACE TABLE test.t1 (id INT)");
test.maxscales->disconnect();
// Make sure it's replicated to all slaves before starting the transaction
test.repl->connect();
test.repl->sync_slaves();
test.repl->disconnect();
// Try to do a transaction across multiple master failures
test.maxscales->connect();
cout << "Start transaction, insert a value and read it" << endl;
ok("START TRANSACTION");
ok("INSERT INTO test.t1 VALUES (1)");
ok("SELECT * FROM test.t1 WHERE id = 1");
cout << "Killing master" << endl;
kill_master();
cout << "Insert value and read it" << endl;
ok("INSERT INTO test.t1 VALUES (2)");
ok("SELECT * FROM test.t1 WHERE id = 2");
cout << "Killing second master" << endl;
kill_master();
cout << "Inserting value 3" << endl;
ok("INSERT INTO test.t1 VALUES (3)");
ok("SELECT * FROM test.t1 WHERE id = 3");
cout << "Killing third master" << endl;
kill_master();
cout << "Selecting final result" << endl;
ok("SELECT SUM(id) FROM test.t1");
cout << "Killing fourth master" << endl;
kill_master();
cout << "Committing transaction" << endl;
ok("COMMIT");
test.maxscales->disconnect();
test.maxscales->connect();
cout << "Checking results" << endl;
Row r = get_row(test.maxscales->conn_rwsplit[0], "SELECT SUM(id), @@last_insert_id FROM t1");
test.expect(!r.empty() && r[0] == "6", "All rows were not inserted: %s",
r.empty() ? "No rows" : r[0].c_str());
test.maxscales->disconnect();
test.maxscales->connect();
ok("DROP TABLE test.t1");
test.maxscales->disconnect();
return test.global_result;
}