ctdb/tests/src/ctdb_transaction.c

   1 /*
   2    simple tool to test persistent databases
   3
   4    Copyright (C) Andrew Tridgell  2006-2007
   5    Copyright (c) Ronnie sahlberg  2007
   6    Copyright (C) Michael Adam     2009
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.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 static int delay = 0;
  46 static int verbose = 0;
  47
  48 static unsigned int pnn;
  49
  50 static TDB_DATA old_data;
  51
  52 static bool success = false;
  53
  54 static void print_counters(void)
  55 {
  56         int i;
  57         uint32_t *old_counters;
  58
  59         printf("[%4u] Counters: ", getpid());
  60         old_counters = (uint32_t *)old_data.dptr;
  61         for (i=0;i<old_data.dsize/sizeof(uint32_t); i++) {
  62                 printf("%6u ", old_counters[i]);
  63         }
  64         printf("\n");
  65 }
  66
  67 static void each_second(struct event_context *ev, struct timed_event *te,
  68                                          struct timeval t, void *private_data)
  69 {
  70         struct ctdb_context *ctdb = talloc_get_type(private_data, struct ctdb_context);
  71
  72         print_counters();
  73
  74         event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
  75 }
  76
  77 static void check_counters(struct ctdb_context *ctdb, TDB_DATA data)
  78 {
  79         int i;
  80         uint32_t *counters, *old_counters;
  81         bool monotonous = true;
  82
  83         counters     = (uint32_t *)data.dptr;
  84         old_counters = (uint32_t *)old_data.dptr;
  85
  86         /* check that all the counters are monotonic increasing */
  87         for (i=0; i<old_data.dsize/sizeof(uint32_t); i++) {
  88                 if (counters[i]<old_counters[i]) {
  89                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n",
  90                                getpid(), i, old_counters[i], counters[i]);
  91                         monotonous = false;
  92                 }
  93         }
  94
  95         if (old_data.dsize != data.dsize) {
  96                 old_data.dsize = data.dsize;
  97                 old_data.dptr = talloc_realloc_size(ctdb, old_data.dptr, old_data.dsize);
  98         }
  99
 100         memcpy(old_data.dptr, data.dptr, data.dsize);
 101         if (verbose) print_counters();
 102
 103         success = monotonous;
 104 }
 105
 106
 107 static void do_sleep(unsigned int sec)
 108 {
 109         unsigned int i;
 110         for (i=0; i<sec; i++) {
 111                 if (verbose) printf(".");
 112                 sleep(1);
 113         }
 114         if (verbose) printf("\n");
 115 }
 116
 117 static void test_store_records(struct ctdb_context *ctdb, struct event_context *ev)
 118 {
 119         TDB_DATA key;
 120         struct ctdb_db_context *ctdb_db;
 121         int ret;
 122         uint32_t *counters;
 123         ctdb_db = ctdb_db_handle(ctdb, "transaction.tdb");
 124
 125         key.dptr = discard_const("testkey");
 126         key.dsize = strlen((const char *)key.dptr)+1;
 127
 128         start_timer();
 129         while ((timelimit == 0) || (end_timer() < timelimit)) {
 130                 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
 131                 TDB_DATA data;
 132                 struct ctdb_transaction_handle *h;
 133
 134                 if (verbose) DEBUG(DEBUG_ERR, ("starting transaction\n"));
 135                 h = ctdb_transaction_start(ctdb_db, tmp_ctx);
 136                 if (h == NULL) {
 137                         DEBUG(DEBUG_ERR, ("Failed to start transaction on node %d\n",
 138                                ctdb_get_pnn(ctdb)));
 139                         talloc_free(tmp_ctx);
 140                         return;
 141                 }
 142                 if (verbose) DEBUG(DEBUG_ERR, ("transaction started\n"));
 143                 do_sleep(delay);
 144
 145                 if (verbose) DEBUG(DEBUG_ERR, ("calling transaction_fetch\n"));
 146                 ret = ctdb_transaction_fetch(h, tmp_ctx, key, &data);
 147                 if (ret != 0) {
 148                         DEBUG(DEBUG_ERR,("Failed to fetch record\n"));
 149                         exit(1);
 150                 }
 151                 if (verbose) DEBUG(DEBUG_ERR, ("fetched data ok\n"));
 152                 do_sleep(delay);
 153
 154                 if (data.dsize < sizeof(uint32_t) * (pnn+1)) {
 155                         unsigned char *ptr = data.dptr;
 156
 157                         data.dptr = talloc_zero_size(tmp_ctx, sizeof(uint32_t) * (pnn+1));
 158                         memcpy(data.dptr, ptr, data.dsize);
 159                         talloc_free(ptr);
 160
 161                         data.dsize = sizeof(uint32_t) * (pnn+1);
 162                 }
 163
 164                 if (data.dptr == NULL) {
 165                         DEBUG(DEBUG_ERR, ("Failed to realloc array\n"));
 166                         talloc_free(tmp_ctx);
 167                         return;
 168                 }
 169
 170                 counters = (uint32_t *)data.dptr;
 171
 172                 /* bump our counter */
 173                 counters[pnn]++;
 174
 175                 if (verbose) DEBUG(DEBUG_ERR, ("calling transaction_store\n"));
 176                 ret = ctdb_transaction_store(h, key, data);
 177                 if (ret != 0) {
 178                         DEBUG(DEBUG_ERR,("Failed to store record\n"));
 179                         exit(1);
 180                 }
 181                 if (verbose) DEBUG(DEBUG_ERR, ("stored data ok\n"));
 182                 do_sleep(delay);
 183
 184                 if (verbose) DEBUG(DEBUG_ERR, ("calling transaction_commit\n"));
 185                 ret = ctdb_transaction_commit(h);
 186                 if (ret != 0) {
 187                         DEBUG(DEBUG_ERR,("Failed to commit transaction\n"));
 188                         check_counters(ctdb, data);
 189                         exit(1);
 190                 }
 191                 if (verbose) DEBUG(DEBUG_ERR, ("transaction committed\n"));
 192
 193                 /* store the counters and verify that they are sane */
 194                 if (verbose || (pnn == 0)) {
 195                         check_counters(ctdb, data);
 196                 }
 197
 198                 do_sleep(delay);
 199
 200                 talloc_free(tmp_ctx);
 201         }
 202
 203 }
 204
 205 /*
 206   main program
 207 */
 208 int main(int argc, const char *argv[])
 209 {
 210         struct ctdb_context *ctdb;
 211         struct ctdb_db_context *ctdb_db;
 212         int unsafe_writes = 0;
 213         struct poptOption popt_options[] = {
 214                 POPT_AUTOHELP
 215                 POPT_CTDB_CMDLINE
 216                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
 217                 { "delay", 'D', POPT_ARG_INT, &delay, 0, "delay (in seconds) between operations", "integer" },
 218                 { "verbose", 'v', POPT_ARG_NONE,  &verbose, 0, "switch on verbose mode", NULL },
 219                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 220                 POPT_TABLEEND
 221         };
 222         int opt;
 223         const char **extra_argv;
 224         int extra_argc = 0;
 225         poptContext pc;
 226         struct event_context *ev;
 227
 228         if (verbose) {
 229                 setbuf(stdout, (char *)NULL); /* don't buffer */
 230         } else {
 231                 setlinebuf(stdout);
 232         }
 233
 234         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 235
 236         while ((opt = poptGetNextOpt(pc)) != -1) {
 237                 switch (opt) {
 238                 default:
 239                         fprintf(stderr, "Invalid option %s: %s\n",
 240                                 poptBadOption(pc, 0), poptStrerror(opt));
 241                         exit(1);
 242                 }
 243         }
 244
 245         /* setup the remaining options for the main program to use */
 246         extra_argv = poptGetArgs(pc);
 247         if (extra_argv) {
 248                 extra_argv++;
 249                 while (extra_argv[extra_argc]) extra_argc++;
 250         }
 251
 252         ev = event_context_init(NULL);
 253
 254         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(3, 0));
 255         if (ctdb == NULL) {
 256                 DEBUG(DEBUG_ERR, ("Could not attach to daemon\n"));
 257                 return 1;
 258         }
 259
 260         /* attach to a specific database */
 261         if (unsafe_writes == 1) {
 262                 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0),
 263                                       "transaction.tdb", true, TDB_NOSYNC);
 264         } else {
 265                 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0),
 266                                       "transaction.tdb", true, 0);
 267         }
 268
 269         if (!ctdb_db) {
 270                 DEBUG(DEBUG_ERR, ("ctdb_attach failed - %s\n", ctdb_errstr(ctdb)));
 271                 exit(1);
 272         }
 273
 274         DEBUG(DEBUG_ERR, ("Waiting for cluster\n"));
 275         while (1) {
 276                 uint32_t recmode=1;
 277                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 278                 if (recmode == 0) break;
 279                 event_loop_once(ev);
 280         }
 281
 282         pnn = ctdb_get_pnn(ctdb);
 283         printf("Starting test on node %u. running for %u seconds. sleep delay: %u seconds.\n", pnn, timelimit, delay);
 284
 285         if (!verbose && (pnn == 0)) {
 286                 event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
 287         }
 288
 289         test_store_records(ctdb, ev);
 290
 291         if (verbose || (pnn == 0)) {
 292                 if (success != true) {
 293                         printf("The test FAILED\n");
 294                         return 1;
 295                 } else {
 296                         printf("SUCCESS!\n");
 297                 }
 298         }
 299         return 0;
 300 }