Merge branch '2.3' into 2.4

system-test/change_master_during_session.cpp

@@ -0,0 +1,67 @@
+/**
+ * @file change_master_during_seesion.cpp Tries to reconfigure replication setup to use another node as a
+ * Master
+ * - connect to RWSplit
+ * - reconfugure backend
+ * - checks that after time > monitor_interval everything is ok
+ */
+
+#include <iostream>
+#include <maxtest/testconnections.hh>
+#include <maxtest/sql_t1.hh>
+
+using namespace std;
+
+
+int main(int argc, char* argv[])
+{
+    char sql[1024];
+    TestConnections* Test = new TestConnections(argc, argv);
+    Test->set_timeout(30);
+
+    Test->repl->connect();
+
+    printf("Connecting to RWsplit\n");
+    Test->maxscales->connect_rwsplit(0);
+    Test->set_timeout(30);
+    Test->add_result(create_t1(Test->maxscales->conn_rwsplit[0]), "Error creating 't1'\n");
+
+    Test->try_query(Test->maxscales->conn_rwsplit[0], (char*) "INSERT INTO t1 (x1, fl) VALUES(0, 1);");
+    Test->tprintf("Changing master to node 1\n");
+    Test->set_timeout(60);
+    Test->repl->change_master(1, 0);
+    Test->tprintf("executing 3 INSERTs\n");
+    for (int i = 0; i < 3; i++)
+    {
+        Test->set_timeout(60);
+        sprintf(sql, "INSERT INTO t1 (x1, fl) VALUES(%d, 2);", i);
+        Test->tprintf("Trying: %d\n", i);
+        execute_query(Test->maxscales->conn_rwsplit[0], "%s", sql);
+    }
+    Test->set_timeout(60);
+    Test->tprintf("executing SELECT\n");
+    execute_query(Test->maxscales->conn_rwsplit[0], (char*) "SELECT * FROM t1;");
+
+    Test->maxscales->close_rwsplit(0);
+
+    /** Sleep for at least one monitor interval */
+    Test->tprintf("Waiting for monitor to detect changes\n");
+    Test->stop_timeout();
+    sleep(3);
+
+    Test->set_timeout(60);
+    Test->maxscales->connect_rwsplit(0);
+    Test->tprintf("Reconnecting and executing SELECT again\n");
+    Test->set_timeout(60);
+    Test->try_query(Test->maxscales->conn_rwsplit[0], (char*) "SELECT * FROM t1;");
+
+    Test->tprintf("Changing master back to node 0\n");
+    Test->set_timeout(60);
+    Test->repl->change_master(0, 1);
+    Test->set_timeout(60);
+    Test->repl->close_connections();
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}