source3/utils/dbwrap_torture.c

   1 /*
   2    Samba Linux/Unix CIFS implementation
   3
   4    simple tool to test persistent databases
   5
   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_common.h"
  25 #include "dbwrap/dbwrap.h"
  26 #include "dbwrap/dbwrap_open.h"
  27 #include "messages.h"
  28 #include "lib/util/util_tdb.h"
  29
  30 #if 0
  31 #include "lib/events/events.h"
  32 #include "system/filesys.h"
  33 #include "popt.h"
  34 #include "cmdline.h"
  35
  36 #include <sys/time.h>
  37 #include <time.h>
  38 #endif
  39
  40 #define DEFAULT_DB_NAME "transaction.tdb"
  41
  42 static int timelimit = 10;
  43 static int torture_delay = 0;
  44 static int verbose = 0;
  45 static int no_trans = 0;
  46 static const char *db_name = DEFAULT_DB_NAME;
  47
  48
  49 static unsigned int pnn;
  50
  51 static TDB_DATA old_data;
  52
  53 static int success = true;
  54
  55 static void print_counters(void)
  56 {
  57         int i;
  58         uint32_t *old_counters;
  59
  60         printf("[%4u] Counters: ", (unsigned int)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
  68 static void each_second(struct tevent_context *ev,
  69                         struct tevent_timer *te,
  70                         struct timeval t,
  71                         void *private_data)
  72 {
  73         struct db_context *db = talloc_get_type(private_data, struct db_context);
  74
  75         print_counters();
  76
  77         tevent_add_timer(ev, db, timeval_current_ofs(1, 0), each_second, db);
  78 }
  79
  80 static bool check_counters(struct db_context *db, TDB_DATA data)
  81 {
  82         int i;
  83         uint32_t *counters, *old_counters;
  84
  85         counters     = (uint32_t *)data.dptr;
  86         old_counters = (uint32_t *)old_data.dptr;
  87
  88         /* check that all the counters are monotonic increasing */
  89         for (i=0; i < old_data.dsize/sizeof(uint32_t); i++) {
  90                 if (counters[i] < old_counters[i]) {
  91                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n",
  92                                (unsigned int)getpid(), i, old_counters[i], counters[i]);
  93                         success = false;
  94                         return false;
  95                 }
  96         }
  97
  98         if (old_data.dsize != data.dsize) {
  99                 old_data.dsize = data.dsize;
 100                 old_data.dptr = (unsigned char*)talloc_realloc_size(db, old_data.dptr, old_data.dsize);
 101         }
 102
 103         memcpy(old_data.dptr, data.dptr, data.dsize);
 104         if (verbose) print_counters();
 105
 106         return true;
 107 }
 108
 109
 110 static void do_sleep(unsigned int sec)
 111 {
 112         unsigned int i;
 113
 114         if (sec == 0) {
 115                 return;
 116         }
 117
 118         for (i=0; i<sec; i++) {
 119                 if (verbose) printf(".");
 120                 sleep(1);
 121         }
 122
 123         if (verbose) printf("\n");
 124 }
 125
 126 static void test_store_records(struct db_context *db, struct tevent_context *ev)
 127 {
 128         TDB_DATA key;
 129         uint32_t *counters;
 130         TALLOC_CTX *tmp_ctx = talloc_stackframe();
 131         struct timeval start;
 132
 133         key = string_term_tdb_data("testkey");
 134
 135         start = timeval_current();
 136         while ((timelimit == 0) || (timeval_elapsed(&start) < timelimit)) {
 137                 struct db_record *rec;
 138                 TDB_DATA data;
 139                 TDB_DATA value;
 140                 int ret;
 141                 NTSTATUS status;
 142
 143                 if (!no_trans) {
 144                         if (verbose) DEBUG(1, ("starting transaction\n"));
 145                         ret = dbwrap_transaction_start(db);
 146                         if (ret != 0) {
 147                                 DEBUG(0, ("Failed to start transaction on node "
 148                                           "%d\n", pnn));
 149                                 goto fail;
 150                         }
 151                         if (verbose) DEBUG(1, ("transaction started\n"));
 152                         do_sleep(torture_delay);
 153                 }
 154
 155                 if (verbose) DEBUG(1, ("calling fetch_lock\n"));
 156                 rec = dbwrap_fetch_locked(db, tmp_ctx, key);
 157                 if (rec == NULL) {
 158                         DEBUG(0, ("Failed to fetch record\n"));
 159                         goto fail;
 160                 }
 161                 if (verbose) DEBUG(1, ("fetched record ok\n"));
 162                 do_sleep(torture_delay);
 163                 value = dbwrap_record_get_value(rec);
 164
 165                 data.dsize = MAX(value.dsize, sizeof(uint32_t) * (pnn+1));
 166                 data.dptr = (unsigned char *)talloc_zero_size(tmp_ctx,
 167                                                               data.dsize);
 168                 if (data.dptr == NULL) {
 169                         DEBUG(0, ("Failed to allocate data\n"));
 170                         goto fail;
 171                 }
 172                 memcpy(data.dptr, value.dptr, value.dsize);
 173
 174                 counters = (uint32_t *)data.dptr;
 175
 176                 /* bump our counter */
 177                 counters[pnn]++;
 178
 179                 if (verbose) DEBUG(1, ("storing data\n"));
 180                 status = dbwrap_record_store(rec, data, TDB_REPLACE);
 181                 if (!NT_STATUS_IS_OK(status)) {
 182                         DEBUG(0, ("Failed to store record\n"));
 183                         if (!no_trans) {
 184                                 ret = dbwrap_transaction_cancel(db);
 185                                 if (ret != 0) {
 186                                         DEBUG(0, ("Error cancelling transaction.\n"));
 187                                 }
 188                         }
 189                         goto fail;
 190                 }
 191                 talloc_free(rec);
 192                 if (verbose) DEBUG(1, ("stored data ok\n"));
 193                 do_sleep(torture_delay);
 194
 195                 if (!no_trans) {
 196                         if (verbose) DEBUG(1, ("calling transaction_commit\n"));
 197                         ret = dbwrap_transaction_commit(db);
 198                         if (ret != 0) {
 199                                 DEBUG(0, ("Failed to commit transaction\n"));
 200                                 goto fail;
 201                         }
 202                         if (verbose) DEBUG(1, ("transaction committed\n"));
 203                 }
 204
 205                 /* store the counters and verify that they are sane */
 206                 if (verbose || (pnn == 0)) {
 207                         if (!check_counters(db, data)) {
 208                                 goto fail;
 209                         }
 210                 }
 211                 talloc_free(data.dptr);
 212
 213                 do_sleep(torture_delay);
 214         }
 215
 216         goto done;
 217
 218 fail:
 219         success = false;
 220
 221 done:
 222         talloc_free(tmp_ctx);
 223         return;
 224 }
 225
 226 /*
 227   main program
 228 */
 229 int main(int argc, const char *argv[])
 230 {
 231         TALLOC_CTX *mem_ctx;
 232         struct tevent_context *ev_ctx;
 233         struct messaging_context *msg_ctx;
 234         struct db_context *db;
 235
 236         int unsafe_writes = 0;
 237         struct poptOption popt_options[] = {
 238                 POPT_AUTOHELP
 239                 POPT_COMMON_SAMBA
 240                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "INTEGER" },
 241                 { "delay", 'D', POPT_ARG_INT, &torture_delay, 0, "delay (in seconds) between operations", "INTEGER" },
 242                 { "verbose", 'v', POPT_ARG_NONE,  &verbose, 0, "switch on verbose mode", NULL },
 243                 { "db-name", 'N', POPT_ARG_STRING, &db_name, 0, "name of the test db", "NAME" },
 244                 { "no-trans", 'n', POPT_ARG_NONE, &no_trans, 0, "use fetch_lock/record store instead of transactions", NULL },
 245                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 246                 POPT_TABLEEND
 247         };
 248         int opt;
 249         const char **extra_argv;
 250         int extra_argc = 0;
 251         poptContext pc;
 252         int tdb_flags;
 253
 254         int ret = 1;
 255
 256         mem_ctx = talloc_stackframe();
 257
 258         if (verbose) {
 259                 setbuf(stdout, (char *)NULL); /* don't buffer */
 260         } else {
 261                 setlinebuf(stdout);
 262         }
 263
 264         load_case_tables();
 265
 266         setup_logging(argv[0], DEBUG_STDERR);
 267         lp_set_cmdline("log level", "0");
 268
 269         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 270
 271         while ((opt = poptGetNextOpt(pc)) != -1) {
 272                 switch (opt) {
 273                 default:
 274                         fprintf(stderr, "Invalid option %s: %s\n",
 275                                 poptBadOption(pc, 0), poptStrerror(opt));
 276                         goto done;
 277                 }
 278         }
 279
 280         /* setup the remaining options for the main program to use */
 281         extra_argv = poptGetArgs(pc);
 282         if (extra_argv) {
 283                 extra_argv++;
 284                 while (extra_argv[extra_argc]) extra_argc++;
 285         }
 286
 287         lp_load_global(get_dyn_CONFIGFILE());
 288
 289         ev_ctx = samba_tevent_context_init(mem_ctx);
 290         if (ev_ctx == NULL) {
 291                 d_fprintf(stderr, "ERROR: could not init event context\n");
 292                 goto done;
 293         }
 294
 295         msg_ctx = messaging_init(mem_ctx, ev_ctx);
 296         if (msg_ctx == NULL) {
 297                 d_fprintf(stderr, "ERROR: could not init messaging context\n");
 298                 goto done;
 299         }
 300
 301         if (unsafe_writes == 1) {
 302                 tdb_flags = TDB_NOSYNC;
 303         } else {
 304                 tdb_flags = TDB_DEFAULT;
 305         }
 306
 307         if (no_trans) {
 308                 tdb_flags |= TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH;
 309         }
 310
 311         db = db_open(mem_ctx, db_name, 0, tdb_flags,  O_RDWR | O_CREAT, 0644,
 312                      DBWRAP_LOCK_ORDER_1);
 313
 314         if (db == NULL) {
 315                 d_fprintf(stderr, "failed to open db '%s': %s\n", db_name,
 316                           strerror(errno));
 317                 goto done;
 318         }
 319
 320         if (get_my_vnn() == NONCLUSTER_VNN) {
 321                 set_my_vnn(0);
 322         }
 323         pnn = get_my_vnn();
 324
 325         printf("Starting test on node %u. running for %u seconds. "
 326                "sleep delay: %u seconds.\n", pnn, timelimit, torture_delay);
 327
 328         if (!verbose && (pnn == 0)) {
 329                 tevent_add_timer(ev_ctx, db, timeval_current_ofs(1, 0), each_second, db);
 330         }
 331
 332         test_store_records(db, ev_ctx);
 333
 334         if (verbose || (pnn == 0)) {
 335                 if (success != true) {
 336                         printf("The test FAILED\n");
 337                         ret = 2;
 338                 } else {
 339                         printf("SUCCESS!\n");
 340                         ret = 0;
 341                 }
 342         }
 343
 344 done:
 345         talloc_free(mem_ctx);
 346         return ret;
 347 }