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
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   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
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  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
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  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  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 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 static test_return_t cull_TEST(memcached_st *memc)
 102 {
 103   uint32_t count= memcached_server_count(memc);
 104
 105   // Do not do this in your code, it is not supported.
 106   memc->servers[0].options.is_dead= true;
 107   memc->state.is_time_for_rebuild= true;
 108
 109   uint32_t new_count= memcached_server_count(memc);
 110   test_compare(count, new_count);
 111
 112   return TEST_SUCCESS;
 113 }
 114
 115 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST(memcached_st *memc)
 116 {
 117   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 118   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 119                    memcached_set(memc,
 120                                  test_literal_param("foo"),
 121                                  NULL, 0, time_t(0), uint32_t(0)),
 122                    memcached_last_error_message(memc));
 123
 124   /*
 125     Setting server_failure_counter==0 should not influence the timeout that we set above,
 126     since we check the timeout that is created by the failure before we check how many times
 127     a server has failed.
 128   */
 129   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 130                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 131
 132   return TEST_SUCCESS;
 133 }
 134
 135 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST(memcached_st *memc)
 136 {
 137   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 138                    memcached_set(memc,
 139                                  test_literal_param("foo"),
 140                                  NULL, 0, time_t(0), uint32_t(0)),
 141                    memcached_last_error_message(memc));
 142
 143   /*
 144     Setting server_failure_counter==0 should not influence the timeout that we set above,
 145     since we check the timeout that is created by the failure before we check how many times
 146     a server has failed.
 147   */
 148   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 149                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 150
 151   global_framework->servers().restart();
 152
 153   memcached_return_t ret;
 154   do {
 155     sleep(3);
 156     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 157   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED);
 158
 159   test_compare_got(MEMCACHED_SUCCESS, ret, memcached_last_error_message(memc));
 160
 161   return TEST_SUCCESS;
 162 }
 163
 164 static test_return_t MEMCACHED_SERVER_MARKED_DEAD_TEST(memcached_st *memc)
 165 {
 166   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 167   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS, true));
 168
 169   memcached_return_t ret;
 170   do {
 171     ret= memcached_set(memc,
 172                        test_literal_param("foo"),
 173                        NULL, 0, time_t(0), uint32_t(0));
 174   } while (ret == MEMCACHED_SUCCESS or ret == MEMCACHED_CONNECTION_FAILURE);
 175   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED, ret);
 176
 177   do {
 178     sleep(3);
 179     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 180   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED or ret == MEMCACHED_SUCCESS);
 181
 182   test_compare_got(MEMCACHED_SERVER_MARKED_DEAD, ret, memcached_last_error_message(memc));
 183
 184   return TEST_SUCCESS;
 185 }
 186
 187 test_st cull_TESTS[] ={
 188   { "cull servers", true, (test_callback_fn*)cull_TEST },
 189   { 0, 0, 0 }
 190 };
 191
 192 test_st server_temporarily_disabled_TESTS[] ={
 193   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST },
 194   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED -> MEMCACHED_SUCCESS)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST },
 195   { 0, 0, 0 }
 196 };
 197
 198 test_st server_permanently_disabled_TESTS[] ={
 199   { "memcached_set(MEMCACHED_SERVER_MARKED_DEAD)", true, (test_callback_fn*)MEMCACHED_SERVER_MARKED_DEAD_TEST },
 200   { 0, 0, 0 }
 201 };
 202
 203 collection_st collection[] ={
 204   { "cull", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, cull_TESTS },
 205   { "server failed", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, server_temporarily_disabled_TESTS },
 206   { "server eject", (test_callback_fn*)add_shutdown_servers, (test_callback_fn*)restart_servers, server_permanently_disabled_TESTS },
 207   { 0, 0, 0, 0 }
 208 };
 209
 210 #include "libmemcached_world.h"
 211
 212 void get_world(Framework *world)
 213 {
 214   world->servers().set_servers_to_run(1);
 215
 216   world->collections= collection;
 217
 218   world->_create= (test_callback_create_fn*)world_create;
 219   world->_destroy= (test_callback_destroy_fn*)world_destroy;
 220
 221   world->set_runner(new LibmemcachedRunner);
 222
 223   global_framework= world;
 224 }