62d4fa822d
Added test cases that verify that the functionality works as expected. Also made Mariadb_nodes::change_master less verbose when one of the nodes is down.
140 lines
4.2 KiB
C++
140 lines
4.2 KiB
C++
/**
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* MXS-359: Starting sessions without master
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*
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* https://jira.mariadb.org/browse/MXS-359
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*/
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#include "testconnections.h"
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#include <vector>
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#include <iostream>
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#include <sstream>
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using std::cout;
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using std::endl;
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struct TestCase
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{
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const char* description;
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void (*func)(TestConnections&, std::ostream&);
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};
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TestConnections* global_test;
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void change_master(int next, int current)
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{
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TestConnections& test = *global_test;
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test.maxscales->ssh_node_f(0, true, "maxadmin shutdown monitor MySQL-Monitor");
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test.repl->connect();
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test.repl->change_master(next, current);
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test.repl->close_connections();
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test.maxscales->ssh_node_f(0, true, "maxadmin restart monitor MySQL-Monitor");
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}
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void test_replaced_master(TestConnections& test, std::ostream& out)
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{
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out << "Sanity check that reads and writes work" << endl;
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test.maxscales->connect();
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test.try_query(test.maxscales->conn_rwsplit[0], "INSERT INTO test.t1 VALUES (1)");
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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test.repl->block_node(0);
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sleep(10);
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out << "Reads should still work even if no master is available" << endl;
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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test.repl->unblock_node(0);
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change_master(1, 0);
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sleep(10);
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out << "Reads and writes after master change should work" << endl;
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test.try_query(test.maxscales->conn_rwsplit[0], "INSERT INTO test.t1 VALUES (2)");
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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test.maxscales->disconnect();
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change_master(0, 1);
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}
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void test_new_master(TestConnections& test, std::ostream& out)
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{
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out << "Block the master before connecting" << endl;
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test.repl->block_node(0);
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sleep(10);
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out << "Connect and check that read-only mode works" << endl;
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test.maxscales->connect();
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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change_master(1, 0);
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sleep(10);
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out << "Both reads and writes after master change should work" << endl;
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test.try_query(test.maxscales->conn_rwsplit[0], "INSERT INTO test.t1 VALUES (2)");
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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test.repl->unblock_node(0);
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test.maxscales->disconnect();
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change_master(0, 1);
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}
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void test_master_failure(TestConnections& test, std::ostream& out)
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{
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out << "Sanity check that reads and writes work" << endl;
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test.maxscales->connect();
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test.try_query(test.maxscales->conn_rwsplit[0], "INSERT INTO test.t1 VALUES (1)");
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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test.repl->block_node(0);
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sleep(10);
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out << "Reads should still work even if no master is available" << endl;
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test.try_query(test.maxscales->conn_rwsplit[0], "SELECT * FROM test.t1");
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out << "Writes should fail" << endl;
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int rc = execute_query_silent(test.maxscales->conn_rwsplit[0], "INSERT INTO test.t1 VALUES (1)");
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test.assert(rc != 0, "Write after master failure should fail");
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test.repl->unblock_node(0);
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test.maxscales->disconnect();
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}
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int main(int argc, char** argv)
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{
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TestConnections test(argc, argv);
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global_test = &test;
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std::vector<TestCase> tests(
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{
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{"test_replaced_master", test_replaced_master},
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{"test_new_master", test_new_master},
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{"test_master_failure", test_master_failure}
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});
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// Create a table for testing
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test.maxscales->connect();
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test.try_query(test.maxscales->conn_rwsplit[0], "CREATE OR REPLACE TABLE test.t1(id INT)");
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test.repl->sync_slaves();
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test.maxscales->disconnect();
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for (auto& i : tests)
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{
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std::stringstream out;
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test.tprintf("Running test: %s", i.description);
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i.func(test, out);
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if (test.global_result)
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{
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test.tprintf("Test '%s' failed: %s", i.description, out.str().c_str());
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break;
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}
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}
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// Wait for the monitoring to stabilize before dropping the table
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sleep(5);
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test.maxscales->connect();
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test.try_query(test.maxscales->conn_rwsplit[0], "DROP TABLE test.t1");
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test.repl->fix_replication();
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test.maxscales->disconnect();
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return test.global_result;
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}
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