Merge branch '2.3' into 2.4

system-test/mxs657_restart.cpp

@@ -0,0 +1,133 @@
+/**
+ * @file mxs657_restart.cpp Regression case for MXS-657 ("Debug assertion when service is shut down and
+ * restarted repeatedly")
+ * - playing with 'restart service' and restart Maxscale under load
+ */
+
+#include <maxtest/big_load.hh>
+#include <maxtest/sql_t1.hh>
+#include <maxtest/testconnections.hh>
+
+TestConnections* Test;
+
+pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;
+int exit_flag = 0;
+int start_flag = 0;
+int restart_flag = 0;   // 0 - maxadmin restart service, 1 - restart maxscale
+unsigned int old_slave;
+void* kill_vm_thread(void* ptr);
+
+int main(int argc, char* argv[])
+{
+    Test = new TestConnections(argc, argv);
+    pthread_t restart_t;
+    int i, j;
+
+
+    Test->tprintf("Connecting to RWSplit %s\n", Test->maxscales->IP[0]);
+
+    Test->set_timeout(2000);
+
+    pthread_create(&restart_t, NULL, kill_vm_thread, NULL);
+
+    int iter = 1000;
+    if (Test->smoke)
+    {
+        iter = 100;
+    }
+
+    for (i = 0; i < iter; i++)
+    {
+        Test->tprintf("i= %d\n", i);
+        Test->maxscales->connect_maxscale(0);
+        for (j = 0; j < iter; j++)
+        {
+            execute_query_silent(Test->maxscales->conn_rwsplit[0], "SELECT 1");
+        }
+        Test->maxscales->close_maxscale_connections(0);
+        if (i > iter)
+        {
+            restart_flag = 1;
+        }
+    }
+
+    restart_flag = 0;
+
+    long int selects[256];
+    long int inserts[256];
+    long int new_selects[256];
+    long int new_inserts[256];
+    long int i1, i2;
+
+    int threads_num = 25;
+    if (Test->smoke)
+    {
+        threads_num = 15;
+    }
+    Test->tprintf("Increasing connection and error limits on backend nodes.\n");
+    Test->repl->connect();
+    for (i = 0; i < Test->repl->N; i++)
+    {
+        execute_query(Test->repl->nodes[i], (char*) "set global max_connections = 300;");
+        execute_query(Test->repl->nodes[i], (char*) "set global max_connect_errors = 100000;");
+    }
+    Test->repl->close_connections();
+
+    Test->tprintf("Creating query load with %d threads and use maxadmin service restart...\n", threads_num);
+    Test->set_timeout(1200);
+    load(&new_inserts[0],
+         &new_selects[0],
+         &selects[0],
+         &inserts[0],
+         threads_num,
+         Test,
+         &i1,
+         &i2,
+         1,
+         false,
+         false);
+    restart_flag = 1;
+    Test->set_timeout(1200);
+    Test->tprintf("Creating query load with %d threads and restart maxscalen", threads_num);
+    load(&new_inserts[0],
+         &new_selects[0],
+         &selects[0],
+         &inserts[0],
+         threads_num,
+         Test,
+         &i1,
+         &i2,
+         1,
+         false,
+         false);
+
+    Test->tprintf("Exiting ...\n");
+    exit_flag = 1;
+    pthread_join(restart_t, NULL);
+
+    Test->tprintf("Checxking if MaxScale is still alive!\n");
+    Test->check_maxscale_alive(0);
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}
+
+
+void* kill_vm_thread(void* ptr)
+{
+    while (exit_flag == 0)
+    {
+        sleep(2);
+        if (restart_flag == 0)
+        {
+            Test->maxscales->execute_maxadmin_command(0, (char*) "restart service \"RW Split Router\"");
+        }
+        else
+        {
+            Test->maxscales->restart_maxscale(0);
+        }
+    }
+
+    return NULL;
+}