ctdb/tests/src/ctdb_persistent.c

   1 /*
   2    simple tool to test persistent databases
   3
   4    Copyright (C) Andrew Tridgell  2006-2007
   5    Copyright (c) Ronnie sahlberg  2007
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "lib/tevent/tevent.h"
  23 #include "system/filesys.h"
  24 #include "popt.h"
  25 #include "cmdline.h"
  26
  27 #include <sys/time.h>
  28 #include <time.h>
  29
  30 static struct timeval tp1,tp2;
  31
  32 static void start_timer(void)
  33 {
  34         gettimeofday(&tp1,NULL);
  35 }
  36
  37 static double end_timer(void)
  38 {
  39         gettimeofday(&tp2,NULL);
  40         return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
  41                 (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
  42 }
  43
  44 static int timelimit = 10;
  45
  46 static unsigned int pnn;
  47
  48 static TDB_DATA old_data;
  49
  50 static int success = true;
  51
  52 static void each_second(struct event_context *ev, struct timed_event *te,
  53                                          struct timeval t, void *private_data)
  54 {
  55         struct ctdb_context *ctdb = talloc_get_type(private_data, struct ctdb_context);
  56         int i;
  57         uint32_t *old_counters;
  58
  59
  60         printf("[%4u] Counters: ", getpid());
  61         old_counters = (uint32_t *)old_data.dptr;
  62         for (i=0;i<old_data.dsize/sizeof(uint32_t); i++) {
  63                 printf("%6u ", old_counters[i]);
  64         }
  65         printf("\n");
  66
  67         event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
  68 }
  69
  70 static void check_counters(struct ctdb_context *ctdb, TDB_DATA data)
  71 {
  72         int i;
  73         uint32_t *counters, *old_counters;
  74         unsigned char *tmp_dptr;
  75
  76         counters     = (uint32_t *)data.dptr;
  77         old_counters = (uint32_t *)old_data.dptr;
  78
  79         /* check that all the counters are monotonic increasing */
  80         for (i=0; i<old_data.dsize/sizeof(uint32_t); i++) {
  81                 if (counters[i]<old_counters[i]) {
  82                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n",
  83                                getpid(), i, old_counters[i], counters[i]);
  84                         success = false;
  85                 }
  86         }
  87
  88         if (old_data.dsize != data.dsize) {
  89                 old_data.dsize = data.dsize;
  90                 tmp_dptr = talloc_realloc_size(ctdb, old_data.dptr, old_data.dsize);
  91                 if (tmp_dptr == NULL) {
  92                         printf("[%4u] ERROR: talloc_realloc_size failed.\n", getpid());
  93                         success = false;
  94                         return;
  95                 } else {
  96                         old_data.dptr = tmp_dptr;
  97                 }
  98         }
  99
 100         memcpy(old_data.dptr, data.dptr, data.dsize);
 101 }
 102
 103
 104
 105 static void test_store_records(struct ctdb_context *ctdb, struct event_context *ev)
 106 {
 107         TDB_DATA key;
 108         struct ctdb_db_context *ctdb_db;
 109
 110         ctdb_db = ctdb_db_handle(ctdb, "persistent.tdb");
 111
 112         key.dptr = discard_const("testkey");
 113         key.dsize = strlen((const char *)key.dptr)+1;
 114
 115         start_timer();
 116         while (end_timer() < timelimit) {
 117                 TDB_DATA data;
 118                 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
 119                 struct ctdb_transaction_handle *h;
 120                 int ret;
 121                 uint32_t *counters;
 122
 123                 h = ctdb_transaction_start(ctdb_db, tmp_ctx);
 124                 if (h == NULL) {
 125                         printf("Failed to start transaction on node %d\n",
 126                                ctdb_get_pnn(ctdb));
 127                         talloc_free(tmp_ctx);
 128                         return;
 129                 }
 130
 131                 ret = ctdb_transaction_fetch(h, tmp_ctx, key, &data);
 132                 if (ret != 0) {
 133                         DEBUG(DEBUG_ERR,("Failed to fetch record\n"));
 134                         exit(1);
 135                 }
 136
 137                 if (data.dsize < sizeof(uint32_t) * (pnn+1)) {
 138                         unsigned char *ptr = data.dptr;
 139
 140                         data.dptr = talloc_zero_size(tmp_ctx, sizeof(uint32_t) * (pnn+1));
 141                         memcpy(data.dptr, ptr, data.dsize);
 142                         talloc_free(ptr);
 143
 144                         data.dsize = sizeof(uint32_t) * (pnn+1);
 145                 }
 146
 147                 if (data.dptr == NULL) {
 148                         printf("Failed to realloc array\n");
 149                         talloc_free(tmp_ctx);
 150                         return;
 151                 }
 152
 153                 counters = (uint32_t *)data.dptr;
 154
 155                 /* bump our counter */
 156                 counters[pnn]++;
 157
 158                 ret = ctdb_transaction_store(h, key, data);
 159                 if (ret != 0) {
 160                         DEBUG(DEBUG_ERR,("Failed to store record\n"));
 161                         exit(1);
 162                 }
 163
 164                 ret = ctdb_transaction_commit(h);
 165                 if (ret != 0) {
 166                         DEBUG(DEBUG_ERR,("Failed to commit transaction\n"));
 167                         //exit(1);
 168                 }
 169
 170                 /* store the counters and verify that they are sane */
 171                 if (pnn == 0) {
 172                         check_counters(ctdb, data);
 173                 }
 174
 175                 talloc_free(tmp_ctx);
 176         }
 177
 178 }
 179
 180 /*
 181   main program
 182 */
 183 int main(int argc, const char *argv[])
 184 {
 185         struct ctdb_context *ctdb;
 186         struct ctdb_db_context *ctdb_db;
 187         int unsafe_writes = 0;
 188         struct poptOption popt_options[] = {
 189                 POPT_AUTOHELP
 190                 POPT_CTDB_CMDLINE
 191                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
 192                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 193                 POPT_TABLEEND
 194         };
 195         int opt;
 196         const char **extra_argv;
 197         int extra_argc = 0;
 198         poptContext pc;
 199         struct event_context *ev;
 200
 201         setlinebuf(stdout);
 202
 203         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 204
 205         while ((opt = poptGetNextOpt(pc)) != -1) {
 206                 switch (opt) {
 207                 default:
 208                         fprintf(stderr, "Invalid option %s: %s\n",
 209                                 poptBadOption(pc, 0), poptStrerror(opt));
 210                         exit(1);
 211                 }
 212         }
 213
 214         /* setup the remaining options for the main program to use */
 215         extra_argv = poptGetArgs(pc);
 216         if (extra_argv) {
 217                 extra_argv++;
 218                 while (extra_argv[extra_argc]) extra_argc++;
 219         }
 220
 221         ev = event_context_init(NULL);
 222
 223         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(3, 0));
 224         if (ctdb == NULL) {
 225                 printf("Could not attach to daemon\n");
 226                 return 1;
 227         }
 228
 229         /* attach to a specific database */
 230         if (unsafe_writes == 1) {
 231                 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0),
 232                                       "persistent.tdb", true, TDB_NOSYNC);
 233         } else {
 234                 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0),
 235                                       "persistent.tdb", true, 0);
 236         }
 237
 238         if (!ctdb_db) {
 239                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
 240                 exit(1);
 241         }
 242
 243         printf("Waiting for cluster\n");
 244         while (1) {
 245                 uint32_t recmode=1;
 246                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 247                 if (recmode == 0) break;
 248                 event_loop_once(ev);
 249         }
 250
 251         pnn = ctdb_get_pnn(ctdb);
 252         printf("Starting test on node %u. running for %u seconds\n", pnn, timelimit);
 253
 254         if (pnn == 0) {
 255                 event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
 256         }
 257
 258         test_store_records(ctdb, ev);
 259
 260         if (pnn == 0) {
 261                 if (success != true) {
 262                         printf("The test FAILED\n");
 263                         return 1;
 264                 } else {
 265                         printf("SUCCESS!\n");
 266                 }
 267         }
 268         return 0;
 269 }