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 "system/filesys.h"
  23 #include "popt.h"
  24 #include "cmdline.h"
  25
  26 #include <sys/time.h>
  27 #include <time.h>
  28
  29 static struct timeval tp1,tp2;
  30
  31 static void start_timer(void)
  32 {
  33         gettimeofday(&tp1,NULL);
  34 }
  35
  36 static double end_timer(void)
  37 {
  38         gettimeofday(&tp2,NULL);
  39         return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
  40                 (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
  41 }
  42
  43 static int timelimit = 10;
  44
  45 static unsigned int pnn;
  46
  47 static TDB_DATA old_data;
  48
  49 static int success = true;
  50
  51 static void each_second(struct event_context *ev, struct timed_event *te,
  52                                          struct timeval t, void *private_data)
  53 {
  54         struct ctdb_context *ctdb = talloc_get_type(private_data, struct ctdb_context);
  55         int i;
  56         uint32_t *old_counters;
  57
  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         event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
  67 }
  68
  69 static void check_counters(struct ctdb_context *ctdb, TDB_DATA data)
  70 {
  71         int i;
  72         uint32_t *counters, *old_counters;
  73         unsigned char *tmp_dptr;
  74
  75         counters     = (uint32_t *)data.dptr;
  76         old_counters = (uint32_t *)old_data.dptr;
  77
  78         /* check that all the counters are monotonic increasing */
  79         for (i=0; i<old_data.dsize/sizeof(uint32_t); i++) {
  80                 if (counters[i]<old_counters[i]) {
  81                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n",
  82                                getpid(), i, old_counters[i], counters[i]);
  83                         success = false;
  84                 }
  85         }
  86
  87         if (old_data.dsize != data.dsize) {
  88                 old_data.dsize = data.dsize;
  89                 tmp_dptr = talloc_realloc_size(ctdb, old_data.dptr, old_data.dsize);
  90                 if (tmp_dptr == NULL) {
  91                         printf("[%4u] ERROR: talloc_realloc_size failed.\n", getpid());
  92                         success = false;
  93                         return;
  94                 } else {
  95                         old_data.dptr = tmp_dptr;
  96                 }
  97         }
  98
  99         memcpy(old_data.dptr, data.dptr, data.dsize);
 100 }
 101
 102
 103
 104 static void test_store_records(struct ctdb_context *ctdb, struct event_context *ev)
 105 {
 106         TDB_DATA key;
 107         struct ctdb_db_context *ctdb_db;
 108
 109         ctdb_db = ctdb_db_handle(ctdb, "persistent.tdb");
 110
 111         key.dptr = discard_const("testkey");
 112         key.dsize = strlen((const char *)key.dptr)+1;
 113
 114         start_timer();
 115         while (end_timer() < timelimit) {
 116                 TDB_DATA data;
 117                 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
 118                 struct ctdb_transaction_handle *h;
 119                 int ret;
 120                 uint32_t *counters;
 121
 122                 h = ctdb_transaction_start(ctdb_db, tmp_ctx);
 123                 if (h == NULL) {
 124                         printf("Failed to start transaction on node %d\n",
 125                                ctdb_get_pnn(ctdb));
 126                         talloc_free(tmp_ctx);
 127                         return;
 128                 }
 129
 130                 ret = ctdb_transaction_fetch(h, tmp_ctx, key, &data);
 131                 if (ret != 0) {
 132                         DEBUG(DEBUG_ERR,("Failed to fetch record\n"));
 133                         exit(1);
 134                 }
 135
 136                 if (data.dsize < sizeof(uint32_t) * (pnn+1)) {
 137                         unsigned char *ptr = data.dptr;
 138
 139                         data.dptr = talloc_zero_size(tmp_ctx, sizeof(uint32_t) * (pnn+1));
 140                         memcpy(data.dptr, ptr, data.dsize);
 141                         talloc_free(ptr);
 142
 143                         data.dsize = sizeof(uint32_t) * (pnn+1);
 144                 }
 145
 146                 if (data.dptr == NULL) {
 147                         printf("Failed to realloc array\n");
 148                         talloc_free(tmp_ctx);
 149                         return;
 150                 }
 151
 152                 counters = (uint32_t *)data.dptr;
 153
 154                 /* bump our counter */
 155                 counters[pnn]++;
 156
 157                 ret = ctdb_transaction_store(h, key, data);
 158                 if (ret != 0) {
 159                         DEBUG(DEBUG_ERR,("Failed to store record\n"));
 160                         exit(1);
 161                 }
 162
 163                 ret = ctdb_transaction_commit(h);
 164                 if (ret != 0) {
 165                         DEBUG(DEBUG_ERR,("Failed to commit transaction\n"));
 166                         //exit(1);
 167                 }
 168
 169                 /* store the counters and verify that they are sane */
 170                 if (pnn == 0) {
 171                         check_counters(ctdb, data);
 172                 }
 173
 174                 talloc_free(tmp_ctx);
 175         }
 176
 177 }
 178
 179 /*
 180   main program
 181 */
 182 int main(int argc, const char *argv[])
 183 {
 184         struct ctdb_context *ctdb;
 185         struct ctdb_db_context *ctdb_db;
 186         int unsafe_writes = 0;
 187         struct poptOption popt_options[] = {
 188                 POPT_AUTOHELP
 189                 POPT_CTDB_CMDLINE
 190                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
 191                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 192                 POPT_TABLEEND
 193         };
 194         int opt;
 195         const char **extra_argv;
 196         int extra_argc = 0;
 197         poptContext pc;
 198         struct event_context *ev;
 199
 200         setlinebuf(stdout);
 201
 202         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 203
 204         while ((opt = poptGetNextOpt(pc)) != -1) {
 205                 switch (opt) {
 206                 default:
 207                         fprintf(stderr, "Invalid option %s: %s\n",
 208                                 poptBadOption(pc, 0), poptStrerror(opt));
 209                         exit(1);
 210                 }
 211         }
 212
 213         /* setup the remaining options for the main program to use */
 214         extra_argv = poptGetArgs(pc);
 215         if (extra_argv) {
 216                 extra_argv++;
 217                 while (extra_argv[extra_argc]) extra_argc++;
 218         }
 219
 220         ev = event_context_init(NULL);
 221
 222         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(3, 0));
 223         if (ctdb == NULL) {
 224                 printf("Could not attach to daemon\n");
 225                 return 1;
 226         }
 227
 228         /* attach to a specific database */
 229         if (unsafe_writes == 1) {
 230                 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0),
 231                                       "persistent.tdb", true, TDB_NOSYNC);
 232         } else {
 233                 ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0),
 234                                       "persistent.tdb", true, 0);
 235         }
 236
 237         if (!ctdb_db) {
 238                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
 239                 exit(1);
 240         }
 241
 242         printf("Waiting for cluster\n");
 243         while (1) {
 244                 uint32_t recmode=1;
 245                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 246                 if (recmode == 0) break;
 247                 event_loop_once(ev);
 248         }
 249
 250         pnn = ctdb_get_pnn(ctdb);
 251         printf("Starting test on node %u. running for %u seconds\n", pnn, timelimit);
 252
 253         if (pnn == 0) {
 254                 event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
 255         }
 256
 257         test_store_records(ctdb, ev);
 258
 259         if (pnn == 0) {
 260                 if (success != true) {
 261                         printf("The test FAILED\n");
 262                         return 1;
 263                 } else {
 264                         printf("SUCCESS!\n");
 265                 }
 266         }
 267         return 0;
 268 }