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 "popt_common.h"
  24 #include "dbwrap.h"
  25
  26 #if 0
  27 #include "lib/events/events.h"
  28 #include "system/filesys.h"
  29 #include "popt.h"
  30 #include "cmdline.h"
  31
  32 #include <sys/time.h>
  33 #include <time.h>
  34 #endif
  35
  36 extern bool AllowDebugChange;
  37
  38 #define DEFAULT_DB_NAME "transaction.tdb"
  39
  40 static int timelimit = 10;
  41 static int torture_delay = 0;
  42 static int verbose = 0;
  43 static int no_trans = 0;
  44 static char *db_name = (char *)discard_const(DEFAULT_DB_NAME);
  45
  46
  47 static unsigned int pnn;
  48
  49 static TDB_DATA old_data;
  50
  51 static int success = true;
  52
  53 static void print_counters(void)
  54 {
  55         int i;
  56         uint32_t *old_counters;
  57
  58         printf("[%4u] Counters: ", getpid());
  59         old_counters = (uint32_t *)old_data.dptr;
  60         for (i=0; i < old_data.dsize/sizeof(uint32_t); i++) {
  61                 printf("%6u ", old_counters[i]);
  62         }
  63         printf("\n");
  64 }
  65
  66 static void each_second(struct tevent_context *ev,
  67                         struct tevent_timer *te,
  68                         struct timeval t,
  69                         void *private_data)
  70 {
  71         struct db_context *db = talloc_get_type(private_data, struct db_context);
  72
  73         print_counters();
  74
  75         tevent_add_timer(ev, db, timeval_current_ofs(1, 0), each_second, db);
  76 }
  77
  78 static bool check_counters(struct db_context *db, TDB_DATA data)
  79 {
  80         int i;
  81         uint32_t *counters, *old_counters;
  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                         success = false;
  92                         return false;
  93                 }
  94         }
  95
  96         if (old_data.dsize != data.dsize) {
  97                 old_data.dsize = data.dsize;
  98                 old_data.dptr = (unsigned char*)talloc_realloc_size(db, old_data.dptr, old_data.dsize);
  99         }
 100
 101         memcpy(old_data.dptr, data.dptr, data.dsize);
 102         if (verbose) print_counters();
 103
 104         return true;
 105 }
 106
 107
 108 static void do_sleep(unsigned int sec)
 109 {
 110         unsigned int i;
 111
 112         if (sec == 0) {
 113                 return;
 114         }
 115
 116         for (i=0; i<sec; i++) {
 117                 if (verbose) printf(".");
 118                 sleep(1);
 119         }
 120
 121         if (verbose) printf("\n");
 122 }
 123
 124 static void test_store_records(struct db_context *db, struct tevent_context *ev)
 125 {
 126         TDB_DATA key;
 127         uint32_t *counters;
 128         TALLOC_CTX *tmp_ctx = talloc_stackframe();
 129         struct timeval start;
 130
 131         key.dptr = (unsigned char *)discard_const("testkey");
 132         key.dsize = strlen((const char *)key.dptr)+1;
 133
 134         start = timeval_current();
 135         while ((timelimit == 0) || (timeval_elapsed(&start) < timelimit)) {
 136                 struct db_record *rec;
 137                 TDB_DATA data;
 138                 int ret;
 139                 NTSTATUS status;
 140
 141                 if (!no_trans) {
 142                         if (verbose) DEBUG(1, ("starting transaction\n"));
 143                         ret = db->transaction_start(db);
 144                         if (ret != 0) {
 145                                 DEBUG(0, ("Failed to start transaction on node "
 146                                           "%d\n", pnn));
 147                                 goto fail;
 148                         }
 149                         if (verbose) DEBUG(1, ("transaction started\n"));
 150                         do_sleep(torture_delay);
 151                 }
 152
 153                 if (verbose) DEBUG(1, ("calling fetch_lock\n"));
 154                 rec = db->fetch_locked(db, tmp_ctx, key);
 155                 if (rec == NULL) {
 156                         DEBUG(0, ("Failed to fetch record\n"));
 157                         goto fail;
 158                 }
 159                 if (verbose) DEBUG(1, ("fetched record ok\n"));
 160                 do_sleep(torture_delay);
 161
 162                 data.dsize = MAX(rec->value.dsize, sizeof(uint32_t) * (pnn+1));
 163                 data.dptr = (unsigned char *)talloc_zero_size(tmp_ctx,
 164                                                               data.dsize);
 165                 if (data.dptr == NULL) {
 166                         DEBUG(0, ("Failed to allocate data\n"));
 167                         goto fail;
 168                 }
 169                 memcpy(data.dptr, rec->value.dptr,rec->value.dsize);
 170
 171                 counters = (uint32_t *)data.dptr;
 172
 173                 /* bump our counter */
 174                 counters[pnn]++;
 175
 176                 if (verbose) DEBUG(1, ("storing data\n"));
 177                 status = rec->store(rec, data, TDB_REPLACE);
 178                 if (!NT_STATUS_IS_OK(status)) {
 179                         DEBUG(0, ("Failed to store record\n"));
 180                         if (!no_trans) {
 181                                 ret = db->transaction_cancel(db);
 182                                 if (ret != 0) {
 183                                         DEBUG(0, ("Error cancelling transaction.\n"));
 184                                 }
 185                         }
 186                         goto fail;
 187                 }
 188                 talloc_free(rec);
 189                 if (verbose) DEBUG(1, ("stored data ok\n"));
 190                 do_sleep(torture_delay);
 191
 192                 if (!no_trans) {
 193                         if (verbose) DEBUG(1, ("calling transaction_commit\n"));
 194                         ret = db->transaction_commit(db);
 195                         if (ret != 0) {
 196                                 DEBUG(0, ("Failed to commit transaction\n"));
 197                                 goto fail;
 198                         }
 199                         if (verbose) DEBUG(1, ("transaction committed\n"));
 200                 }
 201
 202                 /* store the counters and verify that they are sane */
 203                 if (verbose || (pnn == 0)) {
 204                         if (!check_counters(db, data)) {
 205                                 goto fail;
 206                         }
 207                 }
 208                 talloc_free(data.dptr);
 209
 210                 do_sleep(torture_delay);
 211         }
 212
 213         goto done;
 214
 215 fail:
 216         success = false;
 217
 218 done:
 219         talloc_free(tmp_ctx);
 220         return;
 221 }
 222
 223 /*
 224   main program
 225 */
 226 int main(int argc, const char *argv[])
 227 {
 228         TALLOC_CTX *mem_ctx;
 229         struct tevent_context *ev_ctx;
 230         struct messaging_context *msg_ctx;
 231         struct db_context *db;
 232
 233         int unsafe_writes = 0;
 234         struct poptOption popt_options[] = {
 235                 POPT_AUTOHELP
 236                 POPT_COMMON_SAMBA
 237                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "INTEGER" },
 238                 { "delay", 'D', POPT_ARG_INT, &torture_delay, 0, "delay (in seconds) between operations", "INTEGER" },
 239                 { "verbose", 'v', POPT_ARG_NONE,  &verbose, 0, "switch on verbose mode", NULL },
 240                 { "db-name", 'N', POPT_ARG_STRING, &db_name, 0, "name of the test db", "NAME" },
 241                 { "no-trans", 'n', POPT_ARG_NONE, &no_trans, 0, "use fetch_lock/record store instead of transactions", NULL },
 242                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 243                 POPT_TABLEEND
 244         };
 245         int opt;
 246         const char **extra_argv;
 247         int extra_argc = 0;
 248         poptContext pc;
 249         int tdb_flags;
 250
 251         int ret = 1;
 252
 253         mem_ctx = talloc_stackframe();
 254
 255         if (verbose) {
 256                 setbuf(stdout, (char *)NULL); /* don't buffer */
 257         } else {
 258                 setlinebuf(stdout);
 259         }
 260
 261         DEBUGLEVEL_CLASS[DBGC_ALL] = 0;
 262
 263         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 264
 265         while ((opt = poptGetNextOpt(pc)) != -1) {
 266                 switch (opt) {
 267                 default:
 268                         fprintf(stderr, "Invalid option %s: %s\n",
 269                                 poptBadOption(pc, 0), poptStrerror(opt));
 270                         goto done;
 271                 }
 272         }
 273
 274         /* setup the remaining options for the main program to use */
 275         extra_argv = poptGetArgs(pc);
 276         if (extra_argv) {
 277                 extra_argv++;
 278                 while (extra_argv[extra_argc]) extra_argc++;
 279         }
 280
 281         load_case_tables();
 282         dbf = x_stderr;
 283         AllowDebugChange = false;
 284         lp_load(get_dyn_CONFIGFILE(), true, false, false, true);
 285
 286         ev_ctx = tevent_context_init(mem_ctx);
 287         if (ev_ctx == NULL) {
 288                 d_fprintf(stderr, "ERROR: could not init event context\n");
 289                 goto done;
 290         }
 291
 292         msg_ctx = messaging_init(mem_ctx, procid_self(), ev_ctx);
 293         if (msg_ctx == NULL) {
 294                 d_fprintf(stderr, "ERROR: could not init messaging context\n");
 295                 goto done;
 296         }
 297
 298         if (unsafe_writes == 1) {
 299                 tdb_flags = TDB_NOSYNC;
 300         } else {
 301                 tdb_flags = TDB_DEFAULT;
 302         }
 303
 304         if (no_trans) {
 305                 tdb_flags |= TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH;
 306         }
 307
 308         db = db_open(mem_ctx, db_name, 0, tdb_flags,  O_RDWR | O_CREAT, 0644);
 309
 310         if (db == NULL) {
 311                 d_fprintf(stderr, "failed to open db '%s': %s\n", db_name,
 312                           strerror(errno));
 313                 goto done;
 314         }
 315
 316         if (get_my_vnn() == NONCLUSTER_VNN) {
 317                 set_my_vnn(0);
 318         }
 319         pnn = get_my_vnn();
 320
 321         printf("Starting test on node %u. running for %u seconds. "
 322                "sleep delay: %u seconds.\n", pnn, timelimit, torture_delay);
 323
 324         if (!verbose && (pnn == 0)) {
 325                 tevent_add_timer(ev_ctx, db, timeval_current_ofs(1, 0), each_second, db);
 326         }
 327
 328         test_store_records(db, ev_ctx);
 329
 330         if (verbose || (pnn == 0)) {
 331                 if (success != true) {
 332                         printf("The test FAILED\n");
 333                         ret = 2;
 334                 } else {
 335                         printf("SUCCESS!\n");
 336                         ret = 0;
 337                 }
 338         }
 339
 340 done:
 341         talloc_free(mem_ctx);
 342         return ret;
 343 }