git.m6w6.name Git - m6w6/libmemcached/blob - tests/failure.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
  13  *
  14  *      * Redistributions in binary form must reproduce the above
  15  *  copyright notice, this list of conditions and the following disclaimer
  16  *  in the documentation and/or other materials provided with the
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
  20  *  promote products derived from this software without specific prior
  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  26  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  28  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  29  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  30  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  *
  35  */
  36
  37 #include <config.h>
  38
  39 /*
  40   C++ interface test
  41 */
  42 #include <libmemcached-1.0/memcached.hpp>
  43 #include <libmemcached/server_instance.h>
  44 #include <libtest/test.hpp>
  45
  46 #include <cstdio>
  47 #include <cstdlib>
  48 #include <cstring>
  49 #include <sys/time.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52 #include <unistd.h>
  53 #include <ctime>
  54
  55 #include <string>
  56 #include <iostream>
  57
  58 using namespace std;
  59 using namespace memcache;
  60 using namespace libtest;
  61
  62 libtest::Framework *global_framework= NULL;
  63
  64 static test_return_t shutdown_servers(memcached_st *memc)
  65 {
  66   test_skip_valgrind();
  67
  68   test_compare(memcached_server_count(memc), 1U);
  69
  70   // Disable a single server, just the first
  71   global_framework->servers().shutdown(0);
  72
  73   return TEST_SUCCESS;
  74 }
  75
  76 static test_return_t add_shutdown_servers(memcached_st *memc)
  77 {
  78   test_skip_valgrind();
  79
  80   while (memcached_server_count(memc) < 2)
  81   {
  82     const char *argv[1]= { "add_shutdown_server" };
  83     test_true(global_framework->servers().start_socket_server("memcached", libtest::default_port(), 1, argv));
  84     test_compare(MEMCACHED_SUCCESS, memcached_server_add(memc, "localhost", libtest::default_port()));
  85   }
  86
  87   // Disable a single server, just the first
  88   global_framework->servers().shutdown(0);
  89
  90   return TEST_SUCCESS;
  91 }
  92
  93 static test_return_t restart_servers(memcached_st *)
  94 {
  95   // Restart the servers
  96   global_framework->servers().restart();
  97
  98   return TEST_SUCCESS;
  99 }
 100
 101 #include "libmemcached/instance.h"
 102 static test_return_t cull_TEST(memcached_st *memc)
 103 {
 104   uint32_t count= memcached_server_count(memc);
 105
 106   // Do not do this in your code, it is not supported.
 107   memc->servers[0].options.is_dead= true;
 108   memc->state.is_time_for_rebuild= true;
 109
 110   uint32_t new_count= memcached_server_count(memc);
 111   test_compare(count, new_count);
 112
 113   return TEST_SUCCESS;
 114 }
 115
 116 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST(memcached_st *memc)
 117 {
 118   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 119   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 120                    memcached_set(memc,
 121                                  test_literal_param("foo"),
 122                                  NULL, 0, time_t(0), uint32_t(0)),
 123                    memcached_last_error_message(memc));
 124
 125   /*
 126     Setting server_failure_counter==0 should not influence the timeout that we set above,
 127     since we check the timeout that is created by the failure before we check how many times
 128     a server has failed.
 129   */
 130   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 131                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 132
 133   return TEST_SUCCESS;
 134 }
 135
 136 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST(memcached_st *memc)
 137 {
 138   return TEST_SKIPPED;
 139
 140   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 141                    memcached_set(memc,
 142                                  test_literal_param("foo"),
 143                                  NULL, 0, time_t(0), uint32_t(0)),
 144                    memcached_last_error_message(memc));
 145
 146   /*
 147     Setting server_failure_counter==0 should not influence the timeout that we set above,
 148     since we check the timeout that is created by the failure before we check how many times
 149     a server has failed.
 150   */
 151   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 152                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 153
 154   global_framework->servers().restart();
 155
 156   int limit= 5;
 157   memcached_return_t ret;
 158   do {
 159     libtest::dream(3, 0);
 160     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 161   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED and --limit);
 162
 163   test_true(limit);
 164
 165   test_compare_got(MEMCACHED_SUCCESS, ret, memcached_last_error_message(memc));
 166
 167   return TEST_SUCCESS;
 168 }
 169
 170 static test_return_t MEMCACHED_SERVER_MARKED_DEAD_TEST(memcached_st *memc)
 171 {
 172   return TEST_SKIPPED;
 173
 174   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 175   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS, true));
 176
 177   memcached_return_t ret;
 178   do {
 179     ret= memcached_set(memc,
 180                        test_literal_param("foo"),
 181                        NULL, 0, time_t(0), uint32_t(0));
 182   } while (ret == MEMCACHED_SUCCESS or ret == MEMCACHED_CONNECTION_FAILURE);
 183   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED, ret);
 184
 185   int limit= 5;
 186   do {
 187     libtest::dream(3, 0);
 188     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 189   } while ((ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED or ret == MEMCACHED_SUCCESS) and --limit);
 190
 191   test_true(limit);
 192
 193   test_compare_got(MEMCACHED_SERVER_MARKED_DEAD, ret, memcached_last_error_message(memc));
 194
 195   return TEST_SUCCESS;
 196 }
 197
 198 test_st cull_TESTS[] ={
 199   { "cull servers", true, (test_callback_fn*)cull_TEST },
 200   { 0, 0, 0 }
 201 };
 202
 203 test_st server_temporarily_disabled_TESTS[] ={
 204   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED -> MEMCACHED_SUCCESS)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST },
 205   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST },
 206   { 0, 0, 0 }
 207 };
 208
 209 test_st server_permanently_disabled_TESTS[] ={
 210   { "memcached_set(MEMCACHED_SERVER_MARKED_DEAD)", true, (test_callback_fn*)MEMCACHED_SERVER_MARKED_DEAD_TEST },
 211   { 0, 0, 0 }
 212 };
 213
 214 collection_st collection[] ={
 215   { "cull", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, cull_TESTS },
 216   { "server failed", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, server_temporarily_disabled_TESTS },
 217   { "server eject", (test_callback_fn*)add_shutdown_servers, (test_callback_fn*)restart_servers, server_permanently_disabled_TESTS },
 218   { 0, 0, 0, 0 }
 219 };
 220
 221 #include "tests/libmemcached_world.h"
 222
 223 void get_world(libtest::Framework* world)
 224 {
 225   world->servers().set_servers_to_run(1);
 226
 227   world->collections(collection);
 228
 229   world->create((test_callback_create_fn*)world_create);
 230   world->destroy((test_callback_destroy_fn*)world_destroy);
 231
 232   world->set_runner(new LibmemcachedRunner);
 233
 234   global_framework= world;
 235 }