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
  25 #if 0
  26 #include "lib/events/events.h"
  27 #include "system/filesys.h"
  28 #include "popt.h"
  29 #include "cmdline.h"
  30
  31 #include <sys/time.h>
  32 #include <time.h>
  33 #endif
  34
  35 extern bool AllowDebugChange;
  36
  37 #define DEFAULT_DB_NAME "transaction.tdb"
  38
  39 static int timelimit = 10;
  40 static int torture_delay = 0;
  41 static int verbose = 0;
  42 static int no_trans = 0;
  43 static char *db_name = (char *)discard_const(DEFAULT_DB_NAME);
  44
  45
  46 static unsigned int pnn;
  47
  48 static TDB_DATA old_data;
  49
  50 static int success = true;
  51
  52 static void print_counters(void)
  53 {
  54         int i;
  55         uint32_t *old_counters;
  56
  57         printf("[%4u] Counters: ", getpid());
  58         old_counters = (uint32_t *)old_data.dptr;
  59         for (i=0; i < old_data.dsize/sizeof(uint32_t); i++) {
  60                 printf("%6u ", old_counters[i]);
  61         }
  62         printf("\n");
  63 }
  64
  65 static void each_second(struct tevent_context *ev,
  66                         struct tevent_timer *te,
  67                         struct timeval t,
  68                         void *private_data)
  69 {
  70         struct db_context *db = talloc_get_type(private_data, struct db_context);
  71
  72         print_counters();
  73
  74         tevent_add_timer(ev, db, timeval_current_ofs(1, 0), each_second, db);
  75 }
  76
  77 static bool check_counters(struct db_context *db, TDB_DATA data)
  78 {
  79         int i;
  80         uint32_t *counters, *old_counters;
  81
  82         counters     = (uint32_t *)data.dptr;
  83         old_counters = (uint32_t *)old_data.dptr;
  84
  85         /* check that all the counters are monotonic increasing */
  86         for (i=0; i < old_data.dsize/sizeof(uint32_t); i++) {
  87                 if (counters[i] < old_counters[i]) {
  88                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n",
  89                                getpid(), i, old_counters[i], counters[i]);
  90                         success = false;
  91                         return false;
  92                 }
  93         }
  94
  95         if (old_data.dsize != data.dsize) {
  96                 old_data.dsize = data.dsize;
  97                 old_data.dptr = (unsigned char*)talloc_realloc_size(db, old_data.dptr, old_data.dsize);
  98         }
  99
 100         memcpy(old_data.dptr, data.dptr, data.dsize);
 101         if (verbose) print_counters();
 102
 103         return true;
 104 }
 105
 106
 107 static void do_sleep(unsigned int sec)
 108 {
 109         unsigned int i;
 110
 111         if (sec == 0) {
 112                 return;
 113         }
 114
 115         for (i=0; i<sec; i++) {
 116                 if (verbose) printf(".");
 117                 sleep(1);
 118         }
 119
 120         if (verbose) printf("\n");
 121 }
 122
 123 static void test_store_records(struct db_context *db, struct tevent_context *ev)
 124 {
 125         TDB_DATA key;
 126         uint32_t *counters;
 127         TALLOC_CTX *tmp_ctx = talloc_stackframe();
 128         struct timeval start;
 129
 130         key.dptr = (unsigned char *)discard_const("testkey");
 131         key.dsize = strlen((const char *)key.dptr)+1;
 132
 133         start = timeval_current();
 134         while ((timelimit == 0) || (timeval_elapsed(&start) < timelimit)) {
 135                 struct db_record *rec;
 136                 TDB_DATA data;
 137                 int ret;
 138                 NTSTATUS status;
 139
 140                 if (!no_trans) {
 141                         if (verbose) DEBUG(1, ("starting transaction\n"));
 142                         ret = db->transaction_start(db);
 143                         if (ret != 0) {
 144                                 DEBUG(0, ("Failed to start transaction on node "
 145                                           "%d\n", pnn));
 146                                 goto fail;
 147                         }
 148                         if (verbose) DEBUG(1, ("transaction started\n"));
 149                         do_sleep(torture_delay);
 150                 }
 151
 152                 if (verbose) DEBUG(1, ("calling fetch_lock\n"));
 153                 rec = db->fetch_locked(db, tmp_ctx, key);
 154                 if (rec == NULL) {
 155                         DEBUG(0, ("Failed to fetch record\n"));
 156                         goto fail;
 157                 }
 158                 if (verbose) DEBUG(1, ("fetched record ok\n"));
 159                 do_sleep(torture_delay);
 160
 161                 data.dsize = MAX(rec->value.dsize, sizeof(uint32_t) * (pnn+1));
 162                 data.dptr = (unsigned char *)talloc_zero_size(tmp_ctx,
 163                                                               data.dsize);
 164                 if (data.dptr == NULL) {
 165                         DEBUG(0, ("Failed to allocate data\n"));
 166                         goto fail;
 167                 }
 168                 memcpy(data.dptr, rec->value.dptr,rec->value.dsize);
 169
 170                 counters = (uint32_t *)data.dptr;
 171
 172                 /* bump our counter */
 173                 counters[pnn]++;
 174
 175                 if (verbose) DEBUG(1, ("storing data\n"));
 176                 status = rec->store(rec, data, TDB_REPLACE);
 177                 if (!NT_STATUS_IS_OK(status)) {
 178                         DEBUG(0, ("Failed to store record\n"));
 179                         if (!no_trans) {
 180                                 ret = db->transaction_cancel(db);
 181                                 if (ret != 0) {
 182                                         DEBUG(0, ("Error cancelling transaction.\n"));
 183                                 }
 184                         }
 185                         goto fail;
 186                 }
 187                 talloc_free(rec);
 188                 if (verbose) DEBUG(1, ("stored data ok\n"));
 189                 do_sleep(torture_delay);
 190
 191                 if (!no_trans) {
 192                         if (verbose) DEBUG(1, ("calling transaction_commit\n"));
 193                         ret = db->transaction_commit(db);
 194                         if (ret != 0) {
 195                                 DEBUG(0, ("Failed to commit transaction\n"));
 196                                 goto fail;
 197                         }
 198                         if (verbose) DEBUG(1, ("transaction committed\n"));
 199                 }
 200
 201                 /* store the counters and verify that they are sane */
 202                 if (verbose || (pnn == 0)) {
 203                         if (!check_counters(db, data)) {
 204                                 goto fail;
 205                         }
 206                 }
 207                 talloc_free(data.dptr);
 208
 209                 do_sleep(torture_delay);
 210         }
 211
 212         goto done;
 213
 214 fail:
 215         success = false;
 216
 217 done:
 218         talloc_free(tmp_ctx);
 219         return;
 220 }
 221
 222 /*
 223   main program
 224 */
 225 int main(int argc, const char *argv[])
 226 {
 227         TALLOC_CTX *mem_ctx;
 228         struct tevent_context *ev_ctx;
 229         struct messaging_context *msg_ctx;
 230         struct db_context *db;
 231
 232         int unsafe_writes = 0;
 233         struct poptOption popt_options[] = {
 234                 POPT_AUTOHELP
 235                 POPT_COMMON_SAMBA
 236                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "INTEGER" },
 237                 { "delay", 'D', POPT_ARG_INT, &torture_delay, 0, "delay (in seconds) between operations", "INTEGER" },
 238                 { "verbose", 'v', POPT_ARG_NONE,  &verbose, 0, "switch on verbose mode", NULL },
 239                 { "db-name", 'N', POPT_ARG_STRING, &db_name, 0, "name of the test db", "NAME" },
 240                 { "no-trans", 'n', POPT_ARG_NONE, &no_trans, 0, "use fetch_lock/record store instead of transactions", NULL },
 241                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 242                 POPT_TABLEEND
 243         };
 244         int opt;
 245         const char **extra_argv;
 246         int extra_argc = 0;
 247         poptContext pc;
 248         int tdb_flags;
 249
 250         int ret = 1;
 251
 252         mem_ctx = talloc_stackframe();
 253
 254         if (verbose) {
 255                 setbuf(stdout, (char *)NULL); /* don't buffer */
 256         } else {
 257                 setlinebuf(stdout);
 258         }
 259
 260         DEBUGLEVEL_CLASS[DBGC_ALL] = 0;
 261
 262         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 263
 264         while ((opt = poptGetNextOpt(pc)) != -1) {
 265                 switch (opt) {
 266                 default:
 267                         fprintf(stderr, "Invalid option %s: %s\n",
 268                                 poptBadOption(pc, 0), poptStrerror(opt));
 269                         goto done;
 270                 }
 271         }
 272
 273         /* setup the remaining options for the main program to use */
 274         extra_argv = poptGetArgs(pc);
 275         if (extra_argv) {
 276                 extra_argv++;
 277                 while (extra_argv[extra_argc]) extra_argc++;
 278         }
 279
 280         load_case_tables();
 281         dbf = x_stderr;
 282         AllowDebugChange = false;
 283         lp_load(get_dyn_CONFIGFILE(), true, false, false, true);
 284
 285         ev_ctx = tevent_context_init(mem_ctx);
 286         if (ev_ctx == NULL) {
 287                 d_fprintf(stderr, "ERROR: could not init event context\n");
 288                 goto done;
 289         }
 290
 291         msg_ctx = messaging_init(mem_ctx, procid_self(), ev_ctx);
 292         if (msg_ctx == NULL) {
 293                 d_fprintf(stderr, "ERROR: could not init messaging context\n");
 294                 goto done;
 295         }
 296
 297         if (unsafe_writes == 1) {
 298                 tdb_flags = TDB_NOSYNC;
 299         } else {
 300                 tdb_flags = TDB_DEFAULT;
 301         }
 302
 303         if (no_trans) {
 304                 tdb_flags |= TDB_CLEAR_IF_FIRST;
 305         }
 306
 307         db = db_open(mem_ctx, db_name, 0, tdb_flags,  O_RDWR | O_CREAT, 0644);
 308
 309         if (db == NULL) {
 310                 d_fprintf(stderr, "failed to open db '%s': %s\n", db_name,
 311                           strerror(errno));
 312                 goto done;
 313         }
 314
 315         if (get_my_vnn() == NONCLUSTER_VNN) {
 316                 set_my_vnn(0);
 317         }
 318         pnn = get_my_vnn();
 319
 320         printf("Starting test on node %u. running for %u seconds. "
 321                "sleep delay: %u seconds.\n", pnn, timelimit, torture_delay);
 322
 323         if (!verbose && (pnn == 0)) {
 324                 tevent_add_timer(ev_ctx, db, timeval_current_ofs(1, 0), each_second, db);
 325         }
 326
 327         test_store_records(db, ev_ctx);
 328
 329         if (verbose || (pnn == 0)) {
 330                 if (success != true) {
 331                         printf("The test FAILED\n");
 332                         ret = 2;
 333                 } else {
 334                         printf("SUCCESS!\n");
 335                         ret = 0;
 336                 }
 337         }
 338
 339 done:
 340         talloc_free(mem_ctx);
 341         return ret;
 342 }