Merge branch '2.3' into 2.4

system-test/rwsplit_connect.cpp

@@ -0,0 +1,52 @@
+/**
+ * @file rwsplit_connect.cpp Check that there is one connection to Master and one connection to one of slaves
+ * - connecto to RWSplit
+ * - check number of connections on every backend, expect one active Slave and one connection to Master
+ */
+
+#include <maxtest/testconnections.hh>
+
+int main(int argc, char* argv[])
+{
+    TestConnections* Test = new TestConnections(argc, argv);
+    Test->set_timeout(20);
+    Test->repl->connect();
+
+    Test->tprintf("Connecting to RWSplit %s\n", Test->maxscales->ip(0));
+    Test->maxscales->connect_rwsplit(0);
+
+    unsigned int conn_num;
+    unsigned int all_conn = 0;
+    Test->tprintf("Sleeping 5 seconds\n");
+    sleep(5);
+    Test->tprintf("Checking number of connections ot backend servers\n");
+    for (int i = 0; i < Test->repl->N; i++)
+    {
+        conn_num =
+            get_conn_num(Test->repl->nodes[i],
+                         Test->maxscales->ip(0),
+                         Test->maxscales->hostname[0],
+                         (char*) "test");
+        Test->tprintf("connections: %u\n", conn_num);
+        if ((i == 0) && (conn_num != 1))
+        {
+            Test->add_result(1,
+                             " Master should have only 1 connection, but it has %d connection(s)\n",
+                             conn_num);
+        }
+        all_conn += conn_num;
+    }
+    if (all_conn != 2)
+    {
+        Test->add_result(1,
+                         "there should be two connections in total: one to master and one to one of slaves, but number of connections is %d\n",
+                         all_conn);
+    }
+
+    Test->maxscales->close_rwsplit(0);
+    Test->repl->close_connections();
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}