ctdb/tests/src/ctdb_fetch_one.c

   1 /*
   2    simple ctdb benchmark
   3    This test just fetch_locks a record and releases it in a loop.
   4
   5    Copyright (C) Ronnie Sahlberg 2009
   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 int timelimit = 10;
  30 static int lock_count = 0;
  31
  32 static struct ctdb_db_context *ctdb_db;
  33
  34 #define TESTKEY "testkey"
  35
  36
  37 static void alarm_handler(int sig)
  38 {
  39         printf("Locks:%d\n", lock_count);
  40         lock_count=0;
  41
  42         timelimit--;
  43         if (timelimit <= 0) {
  44                 exit(0);
  45         }
  46         alarm(1);
  47 }
  48
  49 /*
  50         Just try locking/unlocking the same record over and over
  51 */
  52 static void bench_fetch_one_loop(struct ctdb_context *ctdb, struct event_context *ev)
  53 {
  54         TDB_DATA key, data;
  55
  56         key.dptr = discard_const(TESTKEY);
  57         key.dsize = strlen(TESTKEY);
  58
  59
  60         while (1) {
  61                 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
  62                 struct ctdb_record_handle *h;
  63
  64                 h = ctdb_fetch_lock(ctdb_db, tmp_ctx, key, &data);
  65                 if (h == NULL) {
  66                         printf("Failed to fetch record '%s' on node %d\n",
  67                                 (const char *)key.dptr, ctdb_get_pnn(ctdb));
  68                         talloc_free(tmp_ctx);
  69                         continue;
  70                 }
  71
  72                 talloc_free(tmp_ctx);
  73                 lock_count++;
  74         }
  75 }
  76
  77 /*
  78   main program
  79 */
  80 int main(int argc, const char *argv[])
  81 {
  82         struct ctdb_context *ctdb;
  83
  84         struct poptOption popt_options[] = {
  85                 POPT_AUTOHELP
  86                 POPT_CTDB_CMDLINE
  87                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
  88                 POPT_TABLEEND
  89         };
  90         int opt;
  91         const char **extra_argv;
  92         int extra_argc = 0;
  93         poptContext pc;
  94         struct event_context *ev;
  95
  96         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
  97
  98         while ((opt = poptGetNextOpt(pc)) != -1) {
  99                 switch (opt) {
 100                 default:
 101                         fprintf(stderr, "Invalid option %s: %s\n",
 102                                 poptBadOption(pc, 0), poptStrerror(opt));
 103                         exit(1);
 104                 }
 105         }
 106
 107         /* setup the remaining options for the main program to use */
 108         extra_argv = poptGetArgs(pc);
 109         if (extra_argv) {
 110                 extra_argv++;
 111                 while (extra_argv[extra_argc]) extra_argc++;
 112         }
 113
 114         ev = event_context_init(NULL);
 115
 116         ctdb = ctdb_cmdline_client(ev, timeval_current_ofs(3, 0));
 117
 118         if (ctdb == NULL) {
 119                 printf("failed to connect to ctdb daemon.\n");
 120                 exit(1);
 121         }
 122
 123         /* attach to a specific database */
 124         ctdb_db = ctdb_attach(ctdb, timeval_current_ofs(2, 0), "test.tdb",
 125                               false, 0);
 126         if (!ctdb_db) {
 127                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
 128                 exit(1);
 129         }
 130
 131         printf("Waiting for cluster\n");
 132         while (1) {
 133                 uint32_t recmode=1;
 134                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 135                 if (recmode == 0) break;
 136                 event_loop_once(ev);
 137         }
 138
 139         signal(SIGALRM, alarm_handler);
 140         alarm(1);
 141
 142         bench_fetch_one_loop(ctdb, ev);
 143
 144         return 0;
 145 }