MXS-2900 Rename maxscale-system-test directory to system-test

A link with the old directory name is provided.

system-test/mariadbmonitor/mysqlmon_rejoin_manual.cpp

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2016 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: 2024-06-02
+ *
+ * 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 "fail_switch_rejoin_common.cpp"
+#include <iostream>
+
+using std::string;
+using std::cout;
+using std::endl;
+
+int main(int argc, char** argv)
+{
+    interactive = strcmp(argv[argc - 1], "interactive") == 0;
+    Mariadb_nodes::require_gtid(true);
+    TestConnections test(argc, argv);
+    int ec;
+    MYSQL* maxconn = test.maxscales->open_rwsplit_connection(0);
+    // Set up test table
+    basic_test(test);
+    // Delete binlogs to sync gtid:s
+    delete_slave_binlogs(test);
+    char result_tmp[bufsize];
+    // Advance gtid:s a bit to so gtid variables are updated.
+    generate_traffic_and_check(test, maxconn, 10);
+    mysql_close(maxconn);
+    test.tprintf(LINE);
+    print_gtids(test);
+    get_input();
+
+    cout << "Stopping master and waiting for failover. Check that another server is promoted." << endl;
+    const int old_master_id = get_master_server_id(test);   // Read master id now before shutdown.
+    const int master_index = test.repl->master;
+    test.repl->stop_node(master_index);
+
+    // Wait until failover is performed
+    test.maxscales->wait_for_monitor(2);
+    get_output(test);
+
+    int master_id = get_master_server_id(test);
+    cout << "Master server id is " << master_id << endl;
+    const bool failover_ok = (master_id > 0 && master_id != old_master_id);
+    test.expect(failover_ok, "Master did not change or no master detected.");
+
+    if (test.ok())
+    {
+        // Recreate maxscale session
+        maxconn = test.maxscales->open_rwsplit_connection(0);
+        cout << "Sending more inserts." << endl;
+        generate_traffic_and_check(test, maxconn, 5);
+        print_gtids(test);
+        cout << "Bringing old master back online..." << endl;
+        test.repl->start_node(master_index, (char*) "");
+        test.maxscales->wait_for_monitor(2);
+        get_output(test);
+        test.tprintf("and manually rejoining it to cluster.");
+        const char REJOIN_CMD[] = "maxadmin call command mariadbmon rejoin MySQL-Monitor server1";
+        test.maxscales->ssh_node_output(0, REJOIN_CMD, true, &ec);
+        test.maxscales->wait_for_monitor(2);
+        get_output(test);
+        test.repl->connect();
+
+        string gtid_old_master;
+        test.repl->connect();
+        if (find_field(test.repl->nodes[master_index], GTID_QUERY, GTID_FIELD, result_tmp) == 0)
+        {
+            gtid_old_master = result_tmp;
+        }
+        string gtid_final;
+        if (find_field(maxconn, GTID_QUERY, GTID_FIELD, result_tmp) == 0)
+        {
+            gtid_final = result_tmp;
+        }
+
+        cout << LINE << "\n";
+        print_gtids(test);
+        cout << LINE << "\n";
+        test.expect(gtid_final == gtid_old_master,
+                    "Old master did not successfully rejoin the cluster (%s != %s).",
+                    gtid_final.c_str(), gtid_old_master.c_str());
+        // Switch master back to server1 so last check is faster
+        test.maxscales->ssh_node_output(0,
+                "maxadmin call command mysqlmon switchover MySQL-Monitor server1 server2", true, &ec);
+        test.maxscales->wait_for_monitor(2);
+        get_output(test);
+        master_id = get_master_server_id(test);
+        test.expect(master_id == old_master_id, "Switchover back to server1 failed.");
+
+        // STOP and RESET SLAVE on a server, then remove binlogs. Check that a server with empty binlogs
+        // can be rejoined.
+        if (test.ok())
+        {
+            cout << "Removing slave connection and deleting binlogs on server3 to get empty gtid.\n";
+            int slave_to_reset = 2;
+            test.repl->connect();
+            auto conn = test.repl->nodes[slave_to_reset];
+            string sstatus_query = "SHOW ALL SLAVES STATUS;";
+            test.try_query(conn,
+                           "STOP SLAVE; RESET SLAVE ALL; RESET MASTER; SET GLOBAL gtid_slave_pos='';");
+            test.maxscales->wait_for_monitor();
+            get_output(test);
+            auto row = get_row(conn, sstatus_query.c_str());
+            test.expect(row.empty(), "server3 is still replicating.");
+            row = get_row(conn, "SELECT @@gtid_current_pos;");
+            test.expect(row.empty() || row[0].empty(),
+                        "server3 gtid is not empty as it should (%s).", row[0].c_str());
+            cout << "Rejoining server3.\n";
+            test.maxscales->ssh_node_output(0,
+                    "maxadmin call command mysqlmon rejoin MySQL-Monitor server3", true, &ec);
+            test.maxscales->wait_for_monitor(2);
+            get_output(test);
+            test.repl->connect();
+            char result[100];
+            test.repl->connect();
+            if (find_field(conn, sstatus_query.c_str(), "Master_Host", result) == 0)
+            {
+                test.expect(strcmp(result, test.repl->IP_private[0]) == 0,
+                        "server3 did not rejoin the cluster (%s != %s).", result, test.repl->IP_private[0]);
+            }
+            else
+            {
+                test.expect(false, "Could not query slave status.");
+            }
+            if (test.ok())
+            {
+                cout << "server3 joined succesfully, test complete.\n";
+            }
+        }
+    }
+    else
+    {
+        test.repl->start_node(master_index, (char*) "");
+        test.maxscales->wait_for_monitor();
+    }
+
+    return test.global_result;
+}