106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/**
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* @file namedserverfilter.cpp Namedserverfilter test
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*
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* Check that a readwritesplit service with a namedserverfilter will route a
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* SELECT @@server_id to the correct server. The filter is configured with
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* `match=SELECT` which should match any SELECT query.
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*/
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#include <maxtest/testconnections.hh>
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#include <iostream>
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using std::cout;
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using IdSet = std::set<int>;
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bool check_server_id(MYSQL* conn, const IdSet& allowed_ids);
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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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test.repl->connect();
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int server_count = test.repl->N;
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if (server_count < 4)
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{
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test.expect(false, "Too few servers.");
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return test.global_result;
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}
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int server_ids[server_count];
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cout << "Server id:s are:";
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for (int i = 0; i < server_count; i++)
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{
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server_ids[i] = test.repl->get_server_id(i);
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cout << " " << server_ids[i];
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}
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cout << ".\n";
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auto maxconn = test.maxscales->open_rwsplit_connection(0);
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test.try_query(maxconn, "SELECT 1;");
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if (test.ok())
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{
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const char wrong_server[] = "Query went to wrong server.";
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cout << "Testing with all servers on. Select-queries should go to servers " << server_ids[1]
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<< " and " << server_ids[2] << ".\n";
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IdSet allowed = {server_ids[1], server_ids[2]};
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// With all servers on, the query should go to either 2 or 3. Test several times.
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for (int i = 0; i < 5 && test.ok(); i++)
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{
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test.expect(check_server_id(maxconn, allowed), wrong_server);
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}
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auto test_server_down = [&](int node_to_stop, int allowed_node) {
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test.repl->stop_node(node_to_stop);
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test.maxscales->wait_for_monitor(1);
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int stopped_id = server_ids[node_to_stop];
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int allowed_id = server_ids[allowed_node];
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cout << "Stopped server " << stopped_id << ".\n";
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cout << "Select-queries should go to server " << allowed_id << " only.\n";
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IdSet allowed_set = {allowed_id};
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// Test that queries only go to the correct server.
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for (int i = 0; i < 5 && test.ok(); i++)
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{
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test.expect(check_server_id(maxconn, allowed_set), "%s", wrong_server);
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}
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test.repl->start_node(node_to_stop, "");
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cout << "Restarted server " << stopped_id << ".\n";
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};
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if (test.ok())
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{
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test_server_down(1, 2);
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}
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if (test.ok())
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{
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test_server_down(2, 1);
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}
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}
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mysql_close(maxconn);
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test.repl->disconnect();
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return test.global_result;
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}
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bool check_server_id(MYSQL* conn, const IdSet& allowed_ids)
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{
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bool id_ok = false;
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char str[100];
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if (find_field(conn, "SELECT @@server_id", "@@server_id", str))
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{
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cout << "Failed to query for @@server_id: " << mysql_error(conn) << ".\n";
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}
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else
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{
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int queried_id = atoi(str);
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if (allowed_ids.count(queried_id))
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{
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cout << "Query went to server " << queried_id << ".\n";
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id_ok = true;
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}
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else
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{
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cout << "Queried unexpected server id " << queried_id << ".\n";
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}
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}
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return id_ok;
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}
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