add tests

maxscale-system-test/mxs321.cpp

@@ -0,0 +1,114 @@
+/**
+ * @file mx321.cpp regression case for bug MXS-321 ("Incorrect number of connections in maxadmin list view")
+ *
+ * - Set max_connections to 100
+ * - Create 200 connections
+ * - Close connections
+ * - Check that maxadmin list servers shows 0 connections
+ */
+
+
+#include <iostream>
+#include <unistd.h>
+#include <cstdlib>
+#include <string>
+#include "testconnections.h"
+#include "maxadmin_operations.h"
+
+using namespace std;
+
+#define CONNECTIONS 200
+int check_connection_count(TestConnections* test, int server)
+{
+    char result[1024];
+    char cmd[1024];
+    test->set_timeout(30);
+    sprintf(cmd, "show server server%d", server);
+    test->add_result(test->get_maxadmin_param(cmd, (char*) "Current no. of conns:", result),
+                     "maxadmin command %s failed\n", cmd);
+    int result_d = 999;
+    sscanf(result, "%d", &result_d);
+    if (strlen(result) == 0)
+    {
+        test->add_result(1, "Empty Current no. of conns \n");
+    }
+    test->tprintf("result %s\t result_d %d\n", result, result_d);
+    return result_d;
+}
+
+void create_and_check_connections(TestConnections* test, int target)
+{
+    MYSQL* stmt[CONNECTIONS];
+
+    for (int i = 0; i < CONNECTIONS; i++)
+    {
+        test->set_timeout(20);
+        switch (target)
+        {
+        case 1:
+            stmt[i] = test->open_rwsplit_connection();
+            break;
+
+        case 2:
+            stmt[i] = test->open_readconn_master_connection();
+            break;
+
+        case 3:
+            stmt[i] = test->open_readconn_master_connection();
+            break;
+        }
+    }
+
+    for (int i = 0; i < CONNECTIONS; i++)
+    {
+        test->set_timeout(20);
+        if (stmt[i])
+        {
+            mysql_close(stmt[i]);
+        }
+    }
+
+    test->stop_timeout();
+    sleep(10);
+    int result_d;
+
+    for (int j = 1; j < test->repl->N + 1; j++)
+    {
+        if ((result_d = check_connection_count(test, j)))
+        {
+            test->tprintf("Waiting 5 seconds and testing again.");
+            sleep(5);
+            result_d = check_connection_count(test, j);
+        }
+
+        test->add_result(result_d, "Expected 0 connections, but got %d\n", result_d);
+    }
+}
+
+int main(int argc, char *argv[])
+{
+
+    TestConnections * Test = new TestConnections(argc, argv);
+    Test->set_timeout(50);
+
+    Test->repl->execute_query_all_nodes((char *) "SET GLOBAL max_connections=100");
+    Test->connect_maxscale();
+    execute_query(Test->conn_rwsplit, "SET GLOBAL max_connections=100");
+    Test->close_maxscale_connections();
+    Test->stop_timeout();
+
+    /** Create connections to readwritesplit */
+    create_and_check_connections(Test, 1);
+
+    /** Create connections to readconnroute master */
+    create_and_check_connections(Test, 2);
+
+    /** Create connections to readconnroute slave */
+    create_and_check_connections(Test, 3);
+
+    Test->repl->flush_hosts();
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}