src/rrd_dump.c

   1 /*****************************************************************************
   2  * RRDtool 1.2.99907080300  Copyright by Tobi Oetiker, 1997-2007
   3  *****************************************************************************
   4  * rrd_dump  Display a RRD
   5  *****************************************************************************
   6  * $Id$
   7  * $Log$
   8  * Revision 1.7  2004/05/25 20:53:21  oetiker
   9  * prevent small leak when resources are exhausted -- Mike Slifcak
  10  *
  11  * Revision 1.6  2004/05/25 20:51:49  oetiker
  12  * Update displayed copyright messages to be consistent. -- Mike Slifcak
  13  *
  14  * Revision 1.5  2003/02/13 07:05:27  oetiker
  15  * Find attached the patch I promised to send to you. Please note that there
  16  * are three new source files (src/rrd_is_thread_safe.h, src/rrd_thread_safe.c
  17  * and src/rrd_not_thread_safe.c) and the introduction of librrd_th. This
  18  * library is identical to librrd, but it contains support code for per-thread
  19  * global variables currently used for error information only. This is similar
  20  * to how errno per-thread variables are implemented.  librrd_th must be linked
  21  * alongside of libpthred
  22  *
  23  * There is also a new file "THREADS", holding some documentation.
  24  *
  25  * -- Peter Stamfest <peter@stamfest.at>
  26  *
  27  * Revision 1.4  2002/02/01 20:34:49  oetiker
  28  * fixed version number and date/time
  29  *
  30  * Revision 1.3  2001/03/10 23:54:39  oetiker
  31  * Support for COMPUTE data sources (CDEF data sources). Removes the RPN
  32  * parser and calculator from rrd_graph and puts then in a new file,
  33  * rrd_rpncalc.c. Changes to core files rrd_create and rrd_update. Some
  34  * clean-up of aberrant behavior stuff, including a bug fix.
  35  * Documentation update (rrdcreate.pod, rrdupdate.pod). Change xml format.
  36  * -- Jake Brutlag <jakeb@corp.webtv.net>
  37  *
  38  * Revision 1.2  2001/03/04 13:01:55  oetiker
  39  *
  40  * Revision 1.1.1.1  2001/02/25 22:25:05  oetiker
  41  * checkin
  42  *
  43  *****************************************************************************/
  44 #include "rrd_tool.h"
  45 #include "rrd_rpncalc.h"
  46
  47 #if !(defined(NETWARE) || defined(WIN32))
  48 extern char *tzname[2];
  49 #endif
  50
  51 int rrd_dump(
  52     int argc,
  53     char **argv)
  54 {
  55     int       rc;
  56
  57     if (argc < 2) {
  58         rrd_set_error("Not enough arguments");
  59         return -1;
  60     }
  61
  62     if (argc == 3) {
  63         rc = rrd_dump_r(argv[1], argv[2]);
  64     } else {
  65         rc = rrd_dump_r(argv[1], NULL);
  66     }
  67
  68     return rc;
  69 }
  70
  71 int rrd_dump_r(
  72     const char *filename,
  73     char *outname)
  74 {
  75     unsigned int i, ii, ix, iii = 0;
  76     time_t    now;
  77     char      somestring[255];
  78     rrd_value_t my_cdp;
  79     off_t     rra_base, rra_start, rra_next;
  80     rrd_file_t *rrd_file;
  81     FILE     *out_file;
  82     rrd_t     rrd;
  83     rrd_value_t value;
  84     struct tm tm;
  85
  86     rrd_file = rrd_open(filename, &rrd, RRD_READONLY | RRD_READAHEAD);
  87     if (rrd_file == NULL) {
  88         rrd_free(&rrd);
  89         return (-1);
  90     }
  91
  92     out_file = NULL;
  93     if (outname) {
  94         if (!(out_file = fopen(outname, "w"))) {
  95             return (-1);
  96         }
  97     } else {
  98         out_file = stdout;
  99     }
 100
 101     fputs("<!-- Round Robin Database Dump -->", out_file);
 102     fputs("<rrd>", out_file);
 103     if (atoi(rrd.stat_head->version) <= 3) {
 104         fprintf(out_file, "\t<version> %s </version>\n", RRD_VERSION3);
 105     } else {
 106         fprintf(out_file, "\t<version> %s </version>\n", RRD_VERSION);
 107     }
 108     fprintf(out_file, "\t<step> %lu </step> <!-- Seconds -->\n",
 109             rrd.stat_head->pdp_step);
 110 #if HAVE_STRFTIME
 111     localtime_r(&rrd.live_head->last_up, &tm);
 112     strftime(somestring, 200, "%Y-%m-%d %H:%M:%S %Z", &tm);
 113 #else
 114 # error "Need strftime"
 115 #endif
 116     fprintf(out_file, "\t<lastupdate> %ld </lastupdate> <!-- %s -->\n\n",
 117             rrd.live_head->last_up, somestring);
 118     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 119         fprintf(out_file, "\t<ds>\n");
 120         fprintf(out_file, "\t\t<name> %s </name>\n", rrd.ds_def[i].ds_nam);
 121         fprintf(out_file, "\t\t<type> %s </type>\n", rrd.ds_def[i].dst);
 122         if (dst_conv(rrd.ds_def[i].dst) != DST_CDEF) {
 123             fprintf(out_file,
 124                     "\t\t<minimal_heartbeat> %lu </minimal_heartbeat>\n",
 125                     rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt);
 126             if (isnan(rrd.ds_def[i].par[DS_min_val].u_val)) {
 127                 fprintf(out_file, "\t\t<min> NaN </min>\n");
 128             } else {
 129                 fprintf(out_file, "\t\t<min> %0.10e </min>\n",
 130                         rrd.ds_def[i].par[DS_min_val].u_val);
 131             }
 132             if (isnan(rrd.ds_def[i].par[DS_max_val].u_val)) {
 133                 fprintf(out_file, "\t\t<max> NaN </max>\n");
 134             } else {
 135                 fprintf(out_file, "\t\t<max> %0.10e </max>\n",
 136                         rrd.ds_def[i].par[DS_max_val].u_val);
 137             }
 138         } else {        /* DST_CDEF */
 139             char     *str = NULL;
 140
 141             rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 142                             rrd.ds_def, &str);
 143             fprintf(out_file, "\t\t<cdef> %s </cdef>\n", str);
 144             free(str);
 145         }
 146         fprintf(out_file, "\n\t\t<!-- PDP Status -->\n");
 147         fprintf(out_file, "\t\t<last_ds> %s </last_ds>\n",
 148                 rrd.pdp_prep[i].last_ds);
 149         if (isnan(rrd.pdp_prep[i].scratch[PDP_val].u_val)) {
 150             fprintf(out_file, "\t\t<value> NaN </value>\n");
 151         } else {
 152             fprintf(out_file, "\t\t<value> %0.10e </value>\n",
 153                     rrd.pdp_prep[i].scratch[PDP_val].u_val);
 154         }
 155         fprintf(out_file, "\t\t<unknown_sec> %lu </unknown_sec>\n",
 156                 rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt);
 157
 158         fprintf(out_file, "\t</ds>\n\n");
 159     }
 160
 161     fputs("<!-- Round Robin Archives -->", out_file);
 162
 163     rra_base = rrd_file->header_len;
 164     rra_next = rra_base;
 165
 166     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 167
 168         long      timer = 0;
 169
 170         rra_start = rra_next;
 171         rra_next += (rrd.stat_head->ds_cnt
 172                      * rrd.rra_def[i].row_cnt * sizeof(rrd_value_t));
 173         fprintf(out_file, "\t<rra>\n");
 174         fprintf(out_file, "\t\t<cf> %s </cf>\n", rrd.rra_def[i].cf_nam);
 175         fprintf(out_file,
 176                 "\t\t<pdp_per_row> %lu </pdp_per_row> <!-- %lu seconds -->\n\n",
 177                 rrd.rra_def[i].pdp_cnt,
 178                 rrd.rra_def[i].pdp_cnt * rrd.stat_head->pdp_step);
 179         /* support for RRA parameters */
 180         fprintf(out_file, "\t\t<params>\n");
 181         switch (cf_conv(rrd.rra_def[i].cf_nam)) {
 182         case CF_HWPREDICT:
 183         case CF_MHWPREDICT:
 184             fprintf(out_file, "\t\t<hw_alpha> %0.10e </hw_alpha>\n",
 185                     rrd.rra_def[i].par[RRA_hw_alpha].u_val);
 186             fprintf(out_file, "\t\t<hw_beta> %0.10e </hw_beta>\n",
 187                     rrd.rra_def[i].par[RRA_hw_beta].u_val);
 188             fprintf(out_file,
 189                     "\t\t<dependent_rra_idx> %lu </dependent_rra_idx>\n",
 190                     rrd.rra_def[i].par[RRA_dependent_rra_idx].u_cnt);
 191             break;
 192         case CF_SEASONAL:
 193         case CF_DEVSEASONAL:
 194             fprintf(out_file,
 195                     "\t\t<seasonal_gamma> %0.10e </seasonal_gamma>\n",
 196                     rrd.rra_def[i].par[RRA_seasonal_gamma].u_val);
 197             fprintf(out_file,
 198                     "\t\t<seasonal_smooth_idx> %lu </seasonal_smooth_idx>\n",
 199                     rrd.rra_def[i].par[RRA_seasonal_smooth_idx].u_cnt);
 200             if (atoi(rrd.stat_head->version) >= 4) {
 201                 fprintf(out_file,
 202                         "\t\t<smoothing_window> %0.10e </smoothing_window>\n",
 203                         rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val);
 204             }
 205             fprintf(out_file,
 206                     "\t\t<dependent_rra_idx> %lu </dependent_rra_idx>\n",
 207                     rrd.rra_def[i].par[RRA_dependent_rra_idx].u_cnt);
 208             break;
 209         case CF_FAILURES:
 210             fprintf(out_file, "\t\t<delta_pos> %0.10e </delta_pos>\n",
 211                     rrd.rra_def[i].par[RRA_delta_pos].u_val);
 212             fprintf(out_file, "\t\t<delta_neg> %0.10e </delta_neg>\n",
 213                     rrd.rra_def[i].par[RRA_delta_neg].u_val);
 214             fprintf(out_file, "\t\t<window_len> %lu </window_len>\n",
 215                     rrd.rra_def[i].par[RRA_window_len].u_cnt);
 216             fprintf(out_file,
 217                     "\t\t<failure_threshold> %lu </failure_threshold>\n",
 218                     rrd.rra_def[i].par[RRA_failure_threshold].u_cnt);
 219             /* fall thru */
 220         case CF_DEVPREDICT:
 221             fprintf(out_file,
 222                     "\t\t<dependent_rra_idx> %lu </dependent_rra_idx>\n",
 223                     rrd.rra_def[i].par[RRA_dependent_rra_idx].u_cnt);
 224             break;
 225         case CF_AVERAGE:
 226         case CF_MAXIMUM:
 227         case CF_MINIMUM:
 228         case CF_LAST:
 229         default:
 230             fprintf(out_file, "\t\t<xff> %0.10e </xff>\n",
 231                     rrd.rra_def[i].par[RRA_cdp_xff_val].u_val);
 232             break;
 233         }
 234         fprintf(out_file, "\t\t</params>\n");
 235         fprintf(out_file, "\t\t<cdp_prep>\n");
 236         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 237             unsigned long ivalue;
 238
 239             fprintf(out_file, "\t\t\t<ds>\n");
 240             /* support for exporting all CDP parameters */
 241             /* parameters common to all CFs */
 242             /* primary_val and secondary_val do not need to be saved between updates
 243              * so strictly speaking they could be omitted.
 244              * However, they can be useful for diagnostic purposes, so are included here. */
 245             value = rrd.cdp_prep[i * rrd.stat_head->ds_cnt
 246                                  + ii].scratch[CDP_primary_val].u_val;
 247             if (isnan(value)) {
 248                 fprintf(out_file,
 249                         "\t\t\t<primary_value> NaN </primary_value>\n");
 250             } else {
 251                 fprintf(out_file,
 252                         "\t\t\t<primary_value> %0.10e </primary_value>\n",
 253                         value);
 254             }
 255             value =
 256                 rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 257                              ii].scratch[CDP_secondary_val].u_val;
 258             if (isnan(value)) {
 259                 fprintf(out_file,
 260                         "\t\t\t<secondary_value> NaN </secondary_value>\n");
 261             } else {
 262                 fprintf(out_file,
 263                         "\t\t\t<secondary_value> %0.10e </secondary_value>\n",
 264                         value);
 265             }
 266             switch (cf_conv(rrd.rra_def[i].cf_nam)) {
 267             case CF_HWPREDICT:
 268             case CF_MHWPREDICT:
 269                 value =
 270                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 271                                  ii].scratch[CDP_hw_intercept].u_val;
 272                 if (isnan(value)) {
 273                     fprintf(out_file, "\t\t\t<intercept> NaN </intercept>\n");
 274                 } else {
 275                     fprintf(out_file,
 276                             "\t\t\t<intercept> %0.10e </intercept>\n", value);
 277                 }
 278                 value =
 279                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 280                                  ii].scratch[CDP_hw_last_intercept].u_val;
 281                 if (isnan(value)) {
 282                     fprintf(out_file,
 283                             "\t\t\t<last_intercept> NaN </last_intercept>\n");
 284                 } else {
 285                     fprintf(out_file,
 286                             "\t\t\t<last_intercept> %0.10e </last_intercept>\n",
 287                             value);
 288                 }
 289                 value =
 290                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 291                                  ii].scratch[CDP_hw_slope].u_val;
 292                 if (isnan(value)) {
 293                     fprintf(out_file, "\t\t\t<slope> NaN </slope>\n");
 294                 } else {
 295                     fprintf(out_file, "\t\t\t<slope> %0.10e </slope>\n",
 296                             value);
 297                 }
 298                 value =
 299                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 300                                  ii].scratch[CDP_hw_last_slope].u_val;
 301                 if (isnan(value)) {
 302                     fprintf(out_file,
 303                             "\t\t\t<last_slope> NaN </last_slope>\n");
 304                 } else {
 305                     fprintf(out_file,
 306                             "\t\t\t<last_slope> %0.10e </last_slope>\n",
 307                             value);
 308                 }
 309                 ivalue =
 310                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 311                                  ii].scratch[CDP_null_count].u_cnt;
 312                 fprintf(out_file, "\t\t\t<nan_count> %lu </nan_count>\n",
 313                         ivalue);
 314                 ivalue =
 315                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 316                                  ii].scratch[CDP_last_null_count].u_cnt;
 317                 fprintf(out_file,
 318                         "\t\t\t<last_nan_count> %lu </last_nan_count>\n",
 319                         ivalue);
 320                 break;
 321             case CF_SEASONAL:
 322             case CF_DEVSEASONAL:
 323                 value =
 324                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 325                                  ii].scratch[CDP_hw_seasonal].u_val;
 326                 if (isnan(value)) {
 327                     fprintf(out_file, "\t\t\t<seasonal> NaN </seasonal>\n");
 328                 } else {
 329                     fprintf(out_file, "\t\t\t<seasonal> %0.10e </seasonal>\n",
 330                             value);
 331                 }
 332                 value =
 333                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 334                                  ii].scratch[CDP_hw_last_seasonal].u_val;
 335                 if (isnan(value)) {
 336                     fprintf(out_file,
 337                             "\t\t\t<last_seasonal> NaN </last_seasonal>\n");
 338                 } else {
 339                     fprintf(out_file,
 340                             "\t\t\t<last_seasonal> %0.10e </last_seasonal>\n",
 341                             value);
 342                 }
 343                 ivalue =
 344                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 345                                  ii].scratch[CDP_init_seasonal].u_cnt;
 346                 fprintf(out_file, "\t\t\t<init_flag> %lu </init_flag>\n",
 347                         ivalue);
 348                 break;
 349             case CF_DEVPREDICT:
 350                 break;
 351             case CF_FAILURES:
 352             {
 353                 unsigned short vidx;
 354                 char     *violations_array = (char *) ((void *)
 355                                                        rrd.cdp_prep[i *
 356                                                                     rrd.
 357                                                                     stat_head->
 358                                                                     ds_cnt +
 359                                                                     ii].
 360                                                        scratch);
 361                 fprintf(out_file, "\t\t\t<history> ");
 362                 for (vidx = 0;
 363                      vidx < rrd.rra_def[i].par[RRA_window_len].u_cnt;
 364                      ++vidx) {
 365                     fprintf(out_file, "%d", violations_array[vidx]);
 366                 }
 367                 fprintf(out_file, " </history>\n");
 368             }
 369                 break;
 370             case CF_AVERAGE:
 371             case CF_MAXIMUM:
 372             case CF_MINIMUM:
 373             case CF_LAST:
 374             default:
 375                 value =
 376                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 377                                  ii].scratch[CDP_val].u_val;
 378                 if (isnan(value)) {
 379                     fprintf(out_file, "\t\t\t<value> NaN </value>\n");
 380                 } else {
 381                     fprintf(out_file, "\t\t\t<value> %0.10e </value>\n",
 382                             value);
 383                 }
 384                 fprintf(out_file,
 385                         "\t\t\t<unknown_datapoints> %lu </unknown_datapoints>\n",
 386                         rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 387                                      ii].scratch[CDP_unkn_pdp_cnt].u_cnt);
 388                 break;
 389             }
 390             fprintf(out_file, "\t\t\t</ds>\n");
 391         }
 392         fprintf(out_file, "\t\t</cdp_prep>\n");
 393
 394         fprintf(out_file, "\t\t<database>\n");
 395         rrd_seek(rrd_file, (rra_start + (rrd.rra_ptr[i].cur_row + 1)
 396                             * rrd.stat_head->ds_cnt
 397                             * sizeof(rrd_value_t)), SEEK_SET);
 398         timer = -(rrd.rra_def[i].row_cnt - 1);
 399         ii = rrd.rra_ptr[i].cur_row;
 400         for (ix = 0; ix < rrd.rra_def[i].row_cnt; ix++) {
 401             ii++;
 402             if (ii >= rrd.rra_def[i].row_cnt) {
 403                 rrd_seek(rrd_file, rra_start, SEEK_SET);
 404                 ii = 0; /* wrap if max row cnt is reached */
 405             }
 406             now = (rrd.live_head->last_up
 407                    - rrd.live_head->last_up
 408                    % (rrd.rra_def[i].pdp_cnt * rrd.stat_head->pdp_step))
 409                 + (timer * rrd.rra_def[i].pdp_cnt * rrd.stat_head->pdp_step);
 410
 411             timer++;
 412 #if HAVE_STRFTIME
 413             localtime_r(&now, &tm);
 414             strftime(somestring, 200, "%Y-%m-%d %H:%M:%S %Z", &tm);
 415 #else
 416 # error "Need strftime"
 417 #endif
 418             fprintf(out_file, "\t\t\t<!-- %s / %d --> <row>", somestring,
 419                     (int) now);
 420             for (iii = 0; iii < rrd.stat_head->ds_cnt; iii++) {
 421                 rrd_read(rrd_file, &my_cdp, sizeof(rrd_value_t) * 1);
 422                 if (isnan(my_cdp)) {
 423                     fprintf(out_file, "<v> NaN </v>");
 424                 } else {
 425                     fprintf(out_file, "<v> %0.10e </v>", my_cdp);
 426                 };
 427             }
 428             fprintf(out_file, "</row>\n");
 429         }
 430         fprintf(out_file, "\t\t</database>\n\t</rra>\n");
 431
 432     }
 433     fprintf(out_file, "</rrd>\n");
 434     rrd_free(&rrd);
 435     if (out_file != stdout) {
 436         fclose(out_file);
 437     }
 438     return rrd_close(rrd_file);
 439 }