MXS-2900 Move MariaDB-Monitor tests

maxscale-system-test/mariadbmonitor/mysqlmon_rejoin_good.cpp

@@ -0,0 +1,100 @@
+/*
+ * 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: 2024-03-10
+ *
+ * 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"
+
+using std::string;
+
+int main(int argc, char** argv)
+{
+    interactive = strcmp(argv[argc - 1], "interactive") == 0;
+    Mariadb_nodes::require_gtid(true);
+    TestConnections test(argc, argv);
+    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);
+    test.maxscales->wait_for_monitor();
+    test.tprintf(LINE);
+    print_gtids(test);
+    get_input();
+
+    test.tprintf("Stopping master and waiting for failover. Check that another server is promoted.");
+    test.tprintf(LINE);
+    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);
+    test.maxscales->wait_for_monitor();
+    // Recreate maxscale session
+    mysql_close(maxconn);
+    maxconn = test.maxscales->open_rwsplit_connection(0);
+    get_output(test);
+    int master_id = get_master_server_id(test);
+    test.tprintf(LINE);
+    test.tprintf(PRINT_ID, master_id);
+    const bool failover_ok = (master_id > 0 && master_id != old_master_id);
+    test.expect(failover_ok, "Master did not change or no master detected.");
+    string gtid_final;
+    if (failover_ok)
+    {
+        test.tprintf("Sending more inserts.");
+        generate_traffic_and_check(test, maxconn, 5);
+        test.maxscales->wait_for_monitor();
+        if (find_field(maxconn, GTID_QUERY, GTID_FIELD, result_tmp) == 0)
+        {
+            gtid_final = result_tmp;
+        }
+        print_gtids(test);
+        test.tprintf("Bringing old master back online. It should rejoin the cluster and catch up in events.");
+        test.tprintf(LINE);
+
+        test.repl->start_node(master_index, (char*) "");
+        test.maxscales->wait_for_monitor();
+        get_output(test);
+
+        test.repl->connect();
+        test.maxscales->wait_for_monitor();
+        string gtid_old_master;
+        if (find_field(test.repl->nodes[master_index], GTID_QUERY, GTID_FIELD, result_tmp) == 0)
+        {
+            gtid_old_master = result_tmp;
+        }
+        test.tprintf(LINE);
+        print_gtids(test);
+        test.tprintf(LINE);
+        test.expect(gtid_final == gtid_old_master, "Old master did not successfully rejoin the cluster.");
+        // Switch master back to server1 so last check is faster
+        int ec;
+        test.maxscales->ssh_node_output(0,
+                                        "maxadmin call command mysqlmon switchover "
+                                        "MySQL-Monitor server1 server2",
+                                        true,
+                                        &ec);
+        test.maxscales->wait_for_monitor();     // Wait for monitor to update status
+        get_output(test);
+        master_id = get_master_server_id(test);
+        test.expect(master_id == old_master_id, "Switchover back to server1 failed.");
+    }
+    else
+    {
+        test.repl->start_node(master_index, (char*) "");
+        test.maxscales->wait_for_monitor();
+    }
+
+    test.repl->fix_replication();
+    return test.global_result;
+}