3 #define RRD_DEFAULT_GAP_INTERPOLATIONS 1
5 // ----------------------------------------------------------------------------
8 // if not zero it gives the time (in seconds) to remove un-updated dimensions
10 // if dimensions are removed, the chart generation will have to run again
11 int rrd_delete_unupdated_dimensions = 0;
13 int rrd_update_every = UPDATE_EVERY;
14 int rrd_default_history_entries = RRD_DEFAULT_HISTORY_ENTRIES;
15 int rrd_memory_mode = RRD_MEMORY_MODE_SAVE;
17 static int rrdset_compare(void* a, void* b);
18 static int rrdset_compare_name(void* a, void* b);
19 static int rrdfamily_compare(void *a, void *b);
21 // ----------------------------------------------------------------------------
25 .hostname = "localhost",
27 .rrdset_root_rwlock = PTHREAD_RWLOCK_INITIALIZER,
28 .rrdset_root_index = {
29 { NULL, rrdset_compare },
32 .rrdset_root_index_name = {
33 { NULL, rrdset_compare_name },
36 .rrdfamily_root_index = {
37 { NULL, rrdfamily_compare },
40 .variables_root_index = {
41 { NULL, rrdvar_compare },
50 .alarm_log_rwlock = PTHREAD_RWLOCK_INITIALIZER
54 void rrdhost_init(char *hostname) {
55 localhost.hostname = hostname;
56 localhost.health_log.next_log_id =
57 localhost.health_log.next_alarm_id = time(NULL);
60 void rrdhost_rwlock(RRDHOST *host) {
61 pthread_rwlock_wrlock(&host->rrdset_root_rwlock);
64 void rrdhost_rdlock(RRDHOST *host) {
65 pthread_rwlock_rdlock(&host->rrdset_root_rwlock);
68 void rrdhost_unlock(RRDHOST *host) {
69 pthread_rwlock_unlock(&host->rrdset_root_rwlock);
72 void rrdhost_check_rdlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line) {
73 int ret = pthread_rwlock_trywrlock(&host->rrdset_root_rwlock);
76 fatal("RRDHOST '%s' should be read-locked, but it is not, at function %s() at line %lu of file '%s'", host->hostname, function, line, file);
79 void rrdhost_check_wrlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line) {
80 int ret = pthread_rwlock_tryrdlock(&host->rrdset_root_rwlock);
83 fatal("RRDHOST '%s' should be write-locked, but it is not, at function %s() at line %lu of file '%s'", host->hostname, function, line, file);
86 // ----------------------------------------------------------------------------
89 static int rrdfamily_compare(void *a, void *b) {
90 if(((RRDFAMILY *)a)->hash_family < ((RRDFAMILY *)b)->hash_family) return -1;
91 else if(((RRDFAMILY *)a)->hash_family > ((RRDFAMILY *)b)->hash_family) return 1;
92 else return strcmp(((RRDFAMILY *)a)->family, ((RRDFAMILY *)b)->family);
95 #define rrdfamily_index_add(host, rc) (RRDFAMILY *)avl_insert_lock(&((host)->rrdfamily_root_index), (avl *)(rc))
96 #define rrdfamily_index_del(host, rc) (RRDFAMILY *)avl_remove_lock(&((host)->rrdfamily_root_index), (avl *)(rc))
98 static RRDFAMILY *rrdfamily_index_find(RRDHOST *host, const char *id, uint32_t hash) {
101 tmp.hash_family = (hash)?hash:simple_hash(tmp.family);
103 return (RRDFAMILY *)avl_search_lock(&(host->rrdfamily_root_index), (avl *) &tmp);
106 RRDFAMILY *rrdfamily_create(const char *id) {
107 RRDFAMILY *rc = rrdfamily_index_find(&localhost, id, 0);
109 rc = callocz(1, sizeof(RRDFAMILY));
111 rc->family = strdupz(id);
112 rc->hash_family = simple_hash(rc->family);
114 // initialize the variables index
115 avl_init_lock(&rc->variables_root_index, rrdvar_compare);
117 RRDFAMILY *ret = rrdfamily_index_add(&localhost, rc);
119 fatal("INTERNAL ERROR: Expected to INSERT RRDFAMILY '%s' into index, but inserted '%s'.", rc->family, (ret)?ret->family:"NONE");
126 void rrdfamily_free(RRDFAMILY *rc) {
129 RRDFAMILY *ret = rrdfamily_index_del(&localhost, rc);
131 fatal("INTERNAL ERROR: Expected to DELETE RRDFAMILY '%s' from index, but deleted '%s'.", rc->family, (ret)?ret->family:"NONE");
133 if(rc->variables_root_index.avl_tree.root != NULL)
134 fatal("INTERNAL ERROR: Variables index of RRDFAMILY '%s' that is freed, is not empty.", rc->family);
136 freez((void *)rc->family);
141 // ----------------------------------------------------------------------------
144 static int rrdset_compare(void* a, void* b) {
145 if(((RRDSET *)a)->hash < ((RRDSET *)b)->hash) return -1;
146 else if(((RRDSET *)a)->hash > ((RRDSET *)b)->hash) return 1;
147 else return strcmp(((RRDSET *)a)->id, ((RRDSET *)b)->id);
150 #define rrdset_index_add(host, st) (RRDSET *)avl_insert_lock(&((host)->rrdset_root_index), (avl *)(st))
151 #define rrdset_index_del(host, st) (RRDSET *)avl_remove_lock(&((host)->rrdset_root_index), (avl *)(st))
153 static RRDSET *rrdset_index_find(RRDHOST *host, const char *id, uint32_t hash) {
155 strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);
156 tmp.hash = (hash)?hash:simple_hash(tmp.id);
158 return (RRDSET *)avl_search_lock(&(host->rrdset_root_index), (avl *) &tmp);
161 // ----------------------------------------------------------------------------
164 #define rrdset_from_avlname(avlname_ptr) ((RRDSET *)((avlname_ptr) - offsetof(RRDSET, avlname)))
166 static int rrdset_compare_name(void* a, void* b) {
167 RRDSET *A = rrdset_from_avlname(a);
168 RRDSET *B = rrdset_from_avlname(b);
170 // fprintf(stderr, "COMPARING: %s with %s\n", A->name, B->name);
172 if(A->hash_name < B->hash_name) return -1;
173 else if(A->hash_name > B->hash_name) return 1;
174 else return strcmp(A->name, B->name);
177 RRDSET *rrdset_index_add_name(RRDHOST *host, RRDSET *st) {
179 // fprintf(stderr, "ADDING: %s (name: %s)\n", st->id, st->name);
180 result = avl_insert_lock(&host->rrdset_root_index_name, (avl *) (&st->avlname));
181 if(result) return rrdset_from_avlname(result);
185 RRDSET *rrdset_index_del_name(RRDHOST *host, RRDSET *st) {
187 // fprintf(stderr, "DELETING: %s (name: %s)\n", st->id, st->name);
188 result = (RRDSET *)avl_remove_lock(&((host)->rrdset_root_index_name), (avl *)(&st->avlname));
189 if(result) return rrdset_from_avlname(result);
193 static RRDSET *rrdset_index_find_name(RRDHOST *host, const char *name, uint32_t hash) {
197 tmp.hash_name = (hash)?hash:simple_hash(tmp.name);
199 // fprintf(stderr, "SEARCHING: %s\n", name);
200 result = avl_search_lock(&host->rrdset_root_index_name, (avl *) (&(tmp.avlname)));
202 RRDSET *st = rrdset_from_avlname(result);
203 if(strcmp(st->magic, RRDSET_MAGIC))
204 error("Search for RRDSET %s returned an invalid RRDSET %s (name %s)", name, st->id, st->name);
206 // fprintf(stderr, "FOUND: %s\n", name);
207 return rrdset_from_avlname(result);
209 // fprintf(stderr, "NOT FOUND: %s\n", name);
214 // ----------------------------------------------------------------------------
217 static int rrddim_compare(void* a, void* b) {
218 if(((RRDDIM *)a)->hash < ((RRDDIM *)b)->hash) return -1;
219 else if(((RRDDIM *)a)->hash > ((RRDDIM *)b)->hash) return 1;
220 else return strcmp(((RRDDIM *)a)->id, ((RRDDIM *)b)->id);
223 #define rrddim_index_add(st, rd) avl_insert_lock(&((st)->dimensions_index), (avl *)(rd))
224 #define rrddim_index_del(st,rd ) avl_remove_lock(&((st)->dimensions_index), (avl *)(rd))
226 static RRDDIM *rrddim_index_find(RRDSET *st, const char *id, uint32_t hash) {
228 strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);
229 tmp.hash = (hash)?hash:simple_hash(tmp.id);
231 return (RRDDIM *)avl_search_lock(&(st->dimensions_index), (avl *) &tmp);
234 // ----------------------------------------------------------------------------
237 int rrdset_type_id(const char *name)
239 if(unlikely(strcmp(name, RRDSET_TYPE_AREA_NAME) == 0)) return RRDSET_TYPE_AREA;
240 else if(unlikely(strcmp(name, RRDSET_TYPE_STACKED_NAME) == 0)) return RRDSET_TYPE_STACKED;
241 else if(unlikely(strcmp(name, RRDSET_TYPE_LINE_NAME) == 0)) return RRDSET_TYPE_LINE;
242 return RRDSET_TYPE_LINE;
245 const char *rrdset_type_name(int chart_type)
247 static char line[] = RRDSET_TYPE_LINE_NAME;
248 static char area[] = RRDSET_TYPE_AREA_NAME;
249 static char stacked[] = RRDSET_TYPE_STACKED_NAME;
252 case RRDSET_TYPE_LINE:
255 case RRDSET_TYPE_AREA:
258 case RRDSET_TYPE_STACKED:
264 // ----------------------------------------------------------------------------
267 const char *rrd_memory_mode_name(int id)
269 static const char ram[] = RRD_MEMORY_MODE_RAM_NAME;
270 static const char map[] = RRD_MEMORY_MODE_MAP_NAME;
271 static const char save[] = RRD_MEMORY_MODE_SAVE_NAME;
274 case RRD_MEMORY_MODE_RAM:
277 case RRD_MEMORY_MODE_MAP:
280 case RRD_MEMORY_MODE_SAVE:
288 int rrd_memory_mode_id(const char *name)
290 if(unlikely(!strcmp(name, RRD_MEMORY_MODE_RAM_NAME)))
291 return RRD_MEMORY_MODE_RAM;
292 else if(unlikely(!strcmp(name, RRD_MEMORY_MODE_MAP_NAME)))
293 return RRD_MEMORY_MODE_MAP;
295 return RRD_MEMORY_MODE_SAVE;
298 // ----------------------------------------------------------------------------
301 int rrddim_algorithm_id(const char *name)
303 if(strcmp(name, RRDDIM_INCREMENTAL_NAME) == 0) return RRDDIM_INCREMENTAL;
304 if(strcmp(name, RRDDIM_ABSOLUTE_NAME) == 0) return RRDDIM_ABSOLUTE;
305 if(strcmp(name, RRDDIM_PCENT_OVER_ROW_TOTAL_NAME) == 0) return RRDDIM_PCENT_OVER_ROW_TOTAL;
306 if(strcmp(name, RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME) == 0) return RRDDIM_PCENT_OVER_DIFF_TOTAL;
307 return RRDDIM_ABSOLUTE;
310 const char *rrddim_algorithm_name(int chart_type)
312 static char absolute[] = RRDDIM_ABSOLUTE_NAME;
313 static char incremental[] = RRDDIM_INCREMENTAL_NAME;
314 static char percentage_of_absolute_row[] = RRDDIM_PCENT_OVER_ROW_TOTAL_NAME;
315 static char percentage_of_incremental_row[] = RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME;
318 case RRDDIM_ABSOLUTE:
321 case RRDDIM_INCREMENTAL:
324 case RRDDIM_PCENT_OVER_ROW_TOTAL:
325 return percentage_of_absolute_row;
327 case RRDDIM_PCENT_OVER_DIFF_TOTAL:
328 return percentage_of_incremental_row;
333 // ----------------------------------------------------------------------------
336 char *rrdset_strncpyz_name(char *to, const char *from, size_t length)
340 while (length-- && (c = *from++)) {
341 if(c != '.' && !isalnum(c))
352 void rrdset_set_name(RRDSET *st, const char *name)
354 debug(D_RRD_CALLS, "rrdset_set_name() old: %s, new: %s", st->name, name);
357 rrdset_index_del_name(&localhost, st);
358 rrdsetvar_rename_all(st);
361 char b[CONFIG_MAX_VALUE + 1];
362 char n[RRD_ID_LENGTH_MAX + 1];
364 snprintfz(n, RRD_ID_LENGTH_MAX, "%s.%s", st->type, name);
365 rrdset_strncpyz_name(b, n, CONFIG_MAX_VALUE);
366 st->name = config_get(st->id, "name", b);
367 st->hash_name = simple_hash(st->name);
369 rrdset_index_add_name(&localhost, st);
372 // ----------------------------------------------------------------------------
375 char *rrdset_cache_dir(const char *id)
379 static char *cache_dir = NULL;
381 cache_dir = config_get("global", "cache directory", CACHE_DIR);
382 int r = mkdir(cache_dir, 0755);
383 if(r != 0 && errno != EEXIST)
384 error("Cannot create directory '%s'", cache_dir);
387 char b[FILENAME_MAX + 1];
388 char n[FILENAME_MAX + 1];
389 rrdset_strncpyz_name(b, id, FILENAME_MAX);
391 snprintfz(n, FILENAME_MAX, "%s/%s", cache_dir, b);
392 ret = config_get(id, "cache directory", n);
394 if(rrd_memory_mode == RRD_MEMORY_MODE_MAP || rrd_memory_mode == RRD_MEMORY_MODE_SAVE) {
395 int r = mkdir(ret, 0775);
396 if(r != 0 && errno != EEXIST)
397 error("Cannot create directory '%s'", ret);
403 // ----------------------------------------------------------------------------
406 void rrdset_reset(RRDSET *st)
408 debug(D_RRD_CALLS, "rrdset_reset() %s", st->name);
410 st->last_collected_time.tv_sec = 0;
411 st->last_collected_time.tv_usec = 0;
412 st->last_updated.tv_sec = 0;
413 st->last_updated.tv_usec = 0;
414 st->current_entry = 0;
416 st->counter_done = 0;
419 for(rd = st->dimensions; rd ; rd = rd->next) {
420 rd->last_collected_time.tv_sec = 0;
421 rd->last_collected_time.tv_usec = 0;
423 bzero(rd->values, rd->entries * sizeof(storage_number));
427 RRDSET *rrdset_create(const char *type, const char *id, const char *name, const char *family, const char *context, const char *title, const char *units, long priority, int update_every, int chart_type)
429 if(!type || !type[0]) {
430 fatal("Cannot create rrd stats without a type.");
435 fatal("Cannot create rrd stats without an id.");
439 char fullid[RRD_ID_LENGTH_MAX + 1];
440 char fullfilename[FILENAME_MAX + 1];
443 snprintfz(fullid, RRD_ID_LENGTH_MAX, "%s.%s", type, id);
445 st = rrdset_find(fullid);
447 error("Cannot create rrd stats for '%s', it already exists.", fullid);
451 long entries = config_get_number(fullid, "history", rrd_default_history_entries);
452 if(entries < 5) entries = config_set_number(fullid, "history", 5);
453 if(entries > RRD_HISTORY_ENTRIES_MAX) entries = config_set_number(fullid, "history", RRD_HISTORY_ENTRIES_MAX);
455 int enabled = config_get_boolean(fullid, "enabled", 1);
456 if(!enabled) entries = 5;
458 unsigned long size = sizeof(RRDSET);
459 char *cache_dir = rrdset_cache_dir(fullid);
461 debug(D_RRD_CALLS, "Creating RRD_STATS for '%s.%s'.", type, id);
463 snprintfz(fullfilename, FILENAME_MAX, "%s/main.db", cache_dir);
464 if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) st = (RRDSET *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 0);
466 if(strcmp(st->magic, RRDSET_MAGIC) != 0) {
468 info("Initializing file %s.", fullfilename);
471 else if(strcmp(st->id, fullid) != 0) {
473 error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);
478 else if(st->memsize != size || st->entries != entries) {
480 error("File %s does not have the desired size. Clearing it.", fullfilename);
483 else if(st->update_every != update_every) {
485 error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
488 else if((time(NULL) - st->last_updated.tv_sec) > update_every * entries) {
490 error("File %s is too old. Clearing it.", fullfilename);
502 st->dimensions = NULL;
504 st->mapped = rrd_memory_mode;
505 st->variables = NULL;
508 st = callocz(1, size);
509 st->mapped = RRD_MEMORY_MODE_RAM;
513 st->entries = entries;
514 st->update_every = update_every;
516 if(st->current_entry >= st->entries) st->current_entry = 0;
518 strcpy(st->cache_filename, fullfilename);
519 strcpy(st->magic, RRDSET_MAGIC);
521 strcpy(st->id, fullid);
522 st->hash = simple_hash(st->id);
524 st->cache_dir = cache_dir;
526 st->chart_type = rrdset_type_id(config_get(st->id, "chart type", rrdset_type_name(chart_type)));
527 st->type = config_get(st->id, "type", type);
528 st->family = config_get(st->id, "family", family?family:st->type);
529 st->units = config_get(st->id, "units", units?units:"");
531 st->context = config_get(st->id, "context", context?context:st->id);
532 st->hash_context = simple_hash(st->context);
534 st->priority = config_get_number(st->id, "priority", priority);
535 st->enabled = enabled;
540 // if(!strcmp(st->id, "disk_util.dm-0")) {
542 // error("enabled debugging for '%s'", st->id);
544 // else error("not enabled debugging for '%s'", st->id);
549 st->last_collected_time.tv_sec = 0;
550 st->last_collected_time.tv_usec = 0;
551 st->counter_done = 0;
553 st->gap_when_lost_iterations_above = (int) (
554 config_get_number(st->id, "gap when lost iterations above", RRD_DEFAULT_GAP_INTERPOLATIONS) + 2);
556 avl_init_lock(&st->dimensions_index, rrddim_compare);
557 avl_init_lock(&st->variables_root_index, rrdvar_compare);
559 pthread_rwlock_init(&st->rwlock, NULL);
560 rrdhost_rwlock(&localhost);
562 if(name && *name) rrdset_set_name(st, name);
563 else rrdset_set_name(st, id);
566 char varvalue[CONFIG_MAX_VALUE + 1];
567 snprintfz(varvalue, CONFIG_MAX_VALUE, "%s (%s)", title?title:"", st->name);
568 st->title = config_get(st->id, "title", varvalue);
571 st->rrdfamily = rrdfamily_create(st->family);
572 st->rrdhost = &localhost;
574 st->next = localhost.rrdset_root;
575 localhost.rrdset_root = st;
578 rrdsetvar_create(st, "last_collected_t", RRDVAR_TYPE_TIME_T, &st->last_collected_time.tv_sec, 0);
579 rrdsetvar_create(st, "collected_total_raw", RRDVAR_TYPE_TOTAL, &st->last_collected_total, 0);
580 rrdsetvar_create(st, "green", RRDVAR_TYPE_CALCULATED, &st->green, 0);
581 rrdsetvar_create(st, "red", RRDVAR_TYPE_CALCULATED, &st->red, 0);
582 rrdsetvar_create(st, "update_every", RRDVAR_TYPE_INT, &st->update_every, 0);
585 rrdset_index_add(&localhost, st);
587 rrdsetcalc_link_matching(st);
588 rrdcalctemplate_link_matching(st);
590 rrdhost_unlock(&localhost);
595 RRDDIM *rrddim_add(RRDSET *st, const char *id, const char *name, long multiplier, long divisor, int algorithm)
597 char filename[FILENAME_MAX + 1];
598 char fullfilename[FILENAME_MAX + 1];
600 char varname[CONFIG_MAX_NAME + 1];
602 unsigned long size = sizeof(RRDDIM) + (st->entries * sizeof(storage_number));
604 debug(D_RRD_CALLS, "Adding dimension '%s/%s'.", st->id, id);
606 rrdset_strncpyz_name(filename, id, FILENAME_MAX);
607 snprintfz(fullfilename, FILENAME_MAX, "%s/%s.db", st->cache_dir, filename);
608 if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) rd = (RRDDIM *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 1);
611 gettimeofday(&now, NULL);
613 if(strcmp(rd->magic, RRDDIMENSION_MAGIC) != 0) {
615 info("Initializing file %s.", fullfilename);
618 else if(rd->memsize != size) {
620 error("File %s does not have the desired size. Clearing it.", fullfilename);
623 else if(rd->multiplier != multiplier) {
625 error("File %s does not have the same multiplier. Clearing it.", fullfilename);
628 else if(rd->divisor != divisor) {
630 error("File %s does not have the same divisor. Clearing it.", fullfilename);
633 else if(rd->algorithm != algorithm) {
635 error("File %s does not have the same algorithm. Clearing it.", fullfilename);
638 else if(rd->update_every != st->update_every) {
640 error("File %s does not have the same refresh frequency. Clearing it.", fullfilename);
643 else if(usec_dt(&now, &rd->last_collected_time) > (rd->entries * rd->update_every * 1000000ULL)) {
645 error("File %s is too old. Clearing it.", fullfilename);
648 else if(strcmp(rd->id, id) != 0) {
650 error("File %s contents are not for dimension %s. Clearing it.", fullfilename, id);
658 // we have a file mapped for rd
659 rd->mapped = rrd_memory_mode;
660 rd->flags = 0x00000000;
661 rd->variables = NULL;
666 // if we didn't manage to get a mmap'd dimension, just create one
668 rd = callocz(1, size);
669 rd->mapped = RRD_MEMORY_MODE_RAM;
673 strcpy(rd->magic, RRDDIMENSION_MAGIC);
674 strcpy(rd->cache_filename, fullfilename);
675 strncpyz(rd->id, id, RRD_ID_LENGTH_MAX);
676 rd->hash = simple_hash(rd->id);
678 snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
679 rd->name = config_get(st->id, varname, (name && *name)?name:rd->id);
681 snprintfz(varname, CONFIG_MAX_NAME, "dim %s algorithm", rd->id);
682 rd->algorithm = rrddim_algorithm_id(config_get(st->id, varname, rrddim_algorithm_name(algorithm)));
684 snprintfz(varname, CONFIG_MAX_NAME, "dim %s multiplier", rd->id);
685 rd->multiplier = config_get_number(st->id, varname, multiplier);
687 snprintfz(varname, CONFIG_MAX_NAME, "dim %s divisor", rd->id);
688 rd->divisor = config_get_number(st->id, varname, divisor);
689 if(!rd->divisor) rd->divisor = 1;
691 rd->entries = st->entries;
692 rd->update_every = st->update_every;
694 // prevent incremental calculation spikes
697 rd->calculated_value = 0;
698 rd->last_calculated_value = 0;
699 rd->collected_value = 0;
700 rd->last_collected_value = 0;
701 rd->collected_volume = 0;
702 rd->stored_volume = 0;
703 rd->last_stored_value = 0;
704 rd->values[st->current_entry] = pack_storage_number(0, SN_NOT_EXISTS);
705 rd->last_collected_time.tv_sec = 0;
706 rd->last_collected_time.tv_usec = 0;
709 // append this dimension
710 pthread_rwlock_wrlock(&st->rwlock);
714 RRDDIM *td = st->dimensions;
715 for(; td->next; td = td->next) ;
720 rrddimvar_create(rd, RRDVAR_TYPE_CALCULATED, NULL, NULL, &rd->last_stored_value, 0);
721 rrddimvar_create(rd, RRDVAR_TYPE_COLLECTED, NULL, "_raw", &rd->last_collected_value, 0);
722 rrddimvar_create(rd, RRDVAR_TYPE_TIME_T, NULL, "_last_collected_t", &rd->last_collected_time.tv_sec, 0);
725 pthread_rwlock_unlock(&st->rwlock);
727 rrddim_index_add(st, rd);
732 void rrddim_set_name(RRDSET *st, RRDDIM *rd, const char *name)
734 debug(D_RRD_CALLS, "rrddim_set_name() %s.%s", st->name, rd->name);
736 char varname[CONFIG_MAX_NAME + 1];
737 snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
738 config_set_default(st->id, varname, name);
740 rrddimvar_rename_all(rd);
743 void rrddim_free(RRDSET *st, RRDDIM *rd)
745 debug(D_RRD_CALLS, "rrddim_free() %s.%s", st->name, rd->name);
747 if(rd == st->dimensions)
748 st->dimensions = rd->next;
751 for (i = st->dimensions; i && i->next != rd; i = i->next) ;
753 if (i && i->next == rd)
756 error("Request to free dimension '%s.%s' but it is not linked.", st->id, rd->name);
761 rrddimvar_free(rd->variables);
763 rrddim_index_del(st, rd);
765 // free(rd->annotations);
766 if(rd->mapped == RRD_MEMORY_MODE_SAVE) {
767 debug(D_RRD_CALLS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
768 savememory(rd->cache_filename, rd, rd->memsize);
770 debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
771 munmap(rd, rd->memsize);
773 else if(rd->mapped == RRD_MEMORY_MODE_MAP) {
774 debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
775 munmap(rd, rd->memsize);
778 debug(D_RRD_CALLS, "Removing dimension '%s'.", rd->name);
783 void rrdset_free_all(void)
785 info("Freeing all memory...");
787 rrdhost_rwlock(&localhost);
790 for(st = localhost.rrdset_root; st ;) {
791 RRDSET *next = st->next;
793 pthread_rwlock_wrlock(&st->rwlock);
796 rrdsetvar_free(st->variables);
799 rrdsetcalc_unlink(st->alarms);
801 while(st->dimensions)
802 rrddim_free(st, st->dimensions);
804 rrdset_index_del(&localhost, st);
806 st->rrdfamily->use_count--;
807 if(!st->rrdfamily->use_count)
808 rrdfamily_free(st->rrdfamily);
810 pthread_rwlock_unlock(&st->rwlock);
812 if(st->mapped == RRD_MEMORY_MODE_SAVE) {
813 debug(D_RRD_CALLS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
814 savememory(st->cache_filename, st, st->memsize);
816 debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
817 munmap(st, st->memsize);
819 else if(st->mapped == RRD_MEMORY_MODE_MAP) {
820 debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
821 munmap(st, st->memsize);
828 localhost.rrdset_root = NULL;
830 rrdhost_unlock(&localhost);
832 info("Memory cleanup completed...");
835 void rrdset_save_all(void) {
836 info("Saving database...");
841 rrdhost_rwlock(&localhost);
842 for(st = localhost.rrdset_root; st ; st = st->next) {
843 pthread_rwlock_wrlock(&st->rwlock);
845 if(st->mapped == RRD_MEMORY_MODE_SAVE) {
846 debug(D_RRD_CALLS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
847 savememory(st->cache_filename, st, st->memsize);
850 for(rd = st->dimensions; rd ; rd = rd->next) {
851 if(likely(rd->mapped == RRD_MEMORY_MODE_SAVE)) {
852 debug(D_RRD_CALLS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
853 savememory(rd->cache_filename, rd, rd->memsize);
857 pthread_rwlock_unlock(&st->rwlock);
859 rrdhost_unlock(&localhost);
863 RRDSET *rrdset_find(const char *id)
865 debug(D_RRD_CALLS, "rrdset_find() for chart %s", id);
867 RRDSET *st = rrdset_index_find(&localhost, id, 0);
871 RRDSET *rrdset_find_bytype(const char *type, const char *id)
873 debug(D_RRD_CALLS, "rrdset_find_bytype() for chart %s.%s", type, id);
875 char buf[RRD_ID_LENGTH_MAX + 1];
877 strncpyz(buf, type, RRD_ID_LENGTH_MAX - 1);
879 int len = (int) strlen(buf);
880 strncpyz(&buf[len], id, (size_t) (RRD_ID_LENGTH_MAX - len));
882 return(rrdset_find(buf));
885 RRDSET *rrdset_find_byname(const char *name)
887 debug(D_RRD_CALLS, "rrdset_find_byname() for chart %s", name);
889 RRDSET *st = rrdset_index_find_name(&localhost, name, 0);
893 RRDDIM *rrddim_find(RRDSET *st, const char *id)
895 debug(D_RRD_CALLS, "rrddim_find() for chart %s, dimension %s", st->name, id);
897 return rrddim_index_find(st, id, 0);
900 int rrddim_hide(RRDSET *st, const char *id)
902 debug(D_RRD_CALLS, "rrddim_hide() for chart %s, dimension %s", st->name, id);
904 RRDDIM *rd = rrddim_find(st, id);
906 error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
910 rd->flags |= RRDDIM_FLAG_HIDDEN;
914 int rrddim_unhide(RRDSET *st, const char *id)
916 debug(D_RRD_CALLS, "rrddim_unhide() for chart %s, dimension %s", st->name, id);
918 RRDDIM *rd = rrddim_find(st, id);
920 error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
924 if(rd->flags & RRDDIM_FLAG_HIDDEN) rd->flags ^= RRDDIM_FLAG_HIDDEN;
928 collected_number rrddim_set_by_pointer(RRDSET *st, RRDDIM *rd, collected_number value)
930 debug(D_RRD_CALLS, "rrddim_set_by_pointer() for chart %s, dimension %s, value " COLLECTED_NUMBER_FORMAT, st->name, rd->name, value);
932 gettimeofday(&rd->last_collected_time, NULL);
933 rd->collected_value = value;
937 return rd->last_collected_value;
940 collected_number rrddim_set(RRDSET *st, const char *id, collected_number value)
942 RRDDIM *rd = rrddim_find(st, id);
944 error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
948 return rrddim_set_by_pointer(st, rd, value);
951 void rrdset_next_usec(RRDSET *st, unsigned long long microseconds)
953 if(!microseconds) rrdset_next(st);
955 debug(D_RRD_CALLS, "rrdset_next_usec() for chart %s with microseconds %llu", st->name, microseconds);
957 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: NEXT: %llu microseconds", st->name, microseconds);
958 st->usec_since_last_update = microseconds;
962 void rrdset_next(RRDSET *st)
964 unsigned long long microseconds = 0;
966 if(likely(st->last_collected_time.tv_sec)) {
968 gettimeofday(&now, NULL);
969 microseconds = usec_dt(&now, &st->last_collected_time);
971 // prevent infinite loop
972 else microseconds = st->update_every * 1000000ULL;
974 rrdset_next_usec(st, microseconds);
977 void rrdset_next_plugins(RRDSET *st)
982 unsigned long long rrdset_done(RRDSET *st)
984 if(unlikely(netdata_exit)) return 0;
986 debug(D_RRD_CALLS, "rrdset_done() for chart %s", st->name);
989 int oldstate, store_this_entry = 1, first_entry = 0;
990 unsigned long long last_ut, now_ut, next_ut, stored_entries = 0;
992 if(unlikely(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldstate) != 0))
993 error("Cannot set pthread cancel state to DISABLE.");
995 // a read lock is OK here
996 pthread_rwlock_rdlock(&st->rwlock);
998 // enable the chart, if it was disabled
999 if(unlikely(rrd_delete_unupdated_dimensions) && !st->enabled)
1002 // check if the chart has a long time to be updated
1003 if(unlikely(st->usec_since_last_update > st->entries * st->update_every * 1000000ULL)) {
1004 info("%s: took too long to be updated (%0.3Lf secs). Reseting it.", st->name, (long double)(st->usec_since_last_update / 1000000.0));
1006 st->usec_since_last_update = st->update_every * 1000000ULL;
1009 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: microseconds since last update: %llu", st->name, st->usec_since_last_update);
1011 // set last_collected_time
1012 if(unlikely(!st->last_collected_time.tv_sec)) {
1013 // it is the first entry
1014 // set the last_collected_time to now
1015 gettimeofday(&st->last_collected_time, NULL);
1017 // the first entry should not be stored
1018 store_this_entry = 0;
1021 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: has not set last_collected_time. Setting it now. Will not store the next entry.", st->name);
1024 // it is not the first entry
1025 // calculate the proper last_collected_time, using usec_since_last_update
1026 unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec + st->usec_since_last_update;
1027 st->last_collected_time.tv_sec = (time_t) (ut / 1000000ULL);
1028 st->last_collected_time.tv_usec = (suseconds_t) (ut % 1000000ULL);
1031 // if this set has not been updated in the past
1032 // we fake the last_update time to be = now - usec_since_last_update
1033 if(unlikely(!st->last_updated.tv_sec)) {
1034 // it has never been updated before
1035 // set a fake last_updated, in the past using usec_since_last_update
1036 unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec - st->usec_since_last_update;
1037 st->last_updated.tv_sec = (time_t) (ut / 1000000ULL);
1038 st->last_updated.tv_usec = (suseconds_t) (ut % 1000000ULL);
1040 // the first entry should not be stored
1041 store_this_entry = 0;
1044 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: initializing last_updated to now - %llu microseconds (%0.3Lf). Will not store the next entry.", st->name, st->usec_since_last_update, (long double)ut/1000000.0);
1047 // check if we will re-write the entire data set
1048 if(unlikely(usec_dt(&st->last_collected_time, &st->last_updated) > st->update_every * st->entries * 1000000ULL)) {
1049 info("%s: too old data (last updated at %ld.%ld, last collected at %ld.%ld). Reseting it. Will not store the next entry.", st->name, st->last_updated.tv_sec, st->last_updated.tv_usec, st->last_collected_time.tv_sec, st->last_collected_time.tv_usec);
1052 st->usec_since_last_update = st->update_every * 1000000ULL;
1054 gettimeofday(&st->last_collected_time, NULL);
1056 unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec - st->usec_since_last_update;
1057 st->last_updated.tv_sec = (time_t) (ut / 1000000ULL);
1058 st->last_updated.tv_usec = (suseconds_t) (ut % 1000000ULL);
1060 // the first entry should not be stored
1061 store_this_entry = 0;
1065 // these are the 3 variables that will help us in interpolation
1066 // last_ut = the last time we added a value to the storage
1067 // now_ut = the time the current value is taken at
1068 // next_ut = the time of the next interpolation point
1069 last_ut = st->last_updated.tv_sec * 1000000ULL + st->last_updated.tv_usec;
1070 now_ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec;
1071 next_ut = (st->last_updated.tv_sec + st->update_every) * 1000000ULL;
1073 if(unlikely(!first_entry && now_ut < next_ut)) {
1074 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: THIS IS IN THE SAME INTERPOLATION POINT", st->name);
1077 if(unlikely(st->debug)) {
1078 debug(D_RRD_STATS, "%s: last ut = %0.3Lf (last updated time)", st->name, (long double)last_ut/1000000.0);
1079 debug(D_RRD_STATS, "%s: now ut = %0.3Lf (current update time)", st->name, (long double)now_ut/1000000.0);
1080 debug(D_RRD_STATS, "%s: next ut = %0.3Lf (next interpolation point)", st->name, (long double)next_ut/1000000.0);
1083 if(unlikely(!st->counter_done)) {
1084 store_this_entry = 0;
1085 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: Will not store the next entry.", st->name);
1089 // calculate totals and count the dimensions
1091 st->collected_total = 0;
1092 for( rd = st->dimensions, dimensions = 0 ; likely(rd) ; rd = rd->next, dimensions++ )
1093 if(likely(rd->updated)) st->collected_total += rd->collected_value;
1095 uint32_t storage_flags = SN_EXISTS;
1097 // process all dimensions to calculate their values
1098 // based on the collected figures only
1099 // at this stage we do not interpolate anything
1100 for( rd = st->dimensions ; likely(rd) ; rd = rd->next ) {
1102 if(unlikely(!rd->updated)) {
1103 rd->calculated_value = 0;
1107 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: START "
1108 " last_collected_value = " COLLECTED_NUMBER_FORMAT
1109 " collected_value = " COLLECTED_NUMBER_FORMAT
1110 " last_calculated_value = " CALCULATED_NUMBER_FORMAT
1111 " calculated_value = " CALCULATED_NUMBER_FORMAT
1113 , rd->last_collected_value
1114 , rd->collected_value
1115 , rd->last_calculated_value
1116 , rd->calculated_value
1119 switch(rd->algorithm) {
1120 case RRDDIM_ABSOLUTE:
1121 rd->calculated_value = (calculated_number)rd->collected_value
1122 * (calculated_number)rd->multiplier
1123 / (calculated_number)rd->divisor;
1125 if(unlikely(st->debug))
1126 debug(D_RRD_STATS, "%s/%s: CALC ABS/ABS-NO-IN "
1127 CALCULATED_NUMBER_FORMAT " = "
1128 COLLECTED_NUMBER_FORMAT
1129 " * " CALCULATED_NUMBER_FORMAT
1130 " / " CALCULATED_NUMBER_FORMAT
1132 , rd->calculated_value
1133 , rd->collected_value
1134 , (calculated_number)rd->multiplier
1135 , (calculated_number)rd->divisor
1139 case RRDDIM_PCENT_OVER_ROW_TOTAL:
1140 if(unlikely(!st->collected_total))
1141 rd->calculated_value = 0;
1143 // the percentage of the current value
1144 // over the total of all dimensions
1145 rd->calculated_value =
1146 (calculated_number)100
1147 * (calculated_number)rd->collected_value
1148 / (calculated_number)st->collected_total;
1150 if(unlikely(st->debug))
1151 debug(D_RRD_STATS, "%s/%s: CALC PCENT-ROW "
1152 CALCULATED_NUMBER_FORMAT " = 100"
1153 " * " COLLECTED_NUMBER_FORMAT
1154 " / " COLLECTED_NUMBER_FORMAT
1156 , rd->calculated_value
1157 , rd->collected_value
1158 , st->collected_total
1162 case RRDDIM_INCREMENTAL:
1163 if(unlikely(rd->counter <= 1)) {
1164 rd->calculated_value = 0;
1168 // if the new is smaller than the old (an overflow, or reset), set the old equal to the new
1169 // to reset the calculation (it will give zero as the calculation for this second)
1170 if(unlikely(rd->last_collected_value > rd->collected_value)) {
1171 debug(D_RRD_STATS, "%s.%s: RESET or OVERFLOW. Last collected value = " COLLECTED_NUMBER_FORMAT ", current = " COLLECTED_NUMBER_FORMAT
1172 , st->name, rd->name
1173 , rd->last_collected_value
1174 , rd->collected_value);
1175 if(!(rd->flags & RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS)) storage_flags = SN_EXISTS_RESET;
1176 rd->last_collected_value = rd->collected_value;
1179 rd->calculated_value =
1180 (calculated_number)(rd->collected_value - rd->last_collected_value)
1181 * (calculated_number)rd->multiplier
1182 / (calculated_number)rd->divisor;
1184 if(unlikely(st->debug))
1185 debug(D_RRD_STATS, "%s/%s: CALC INC PRE "
1186 CALCULATED_NUMBER_FORMAT " = ("
1187 COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT
1189 " * " CALCULATED_NUMBER_FORMAT
1190 " / " CALCULATED_NUMBER_FORMAT
1192 , rd->calculated_value
1193 , rd->collected_value, rd->last_collected_value
1194 , (calculated_number)rd->multiplier
1195 , (calculated_number)rd->divisor
1199 case RRDDIM_PCENT_OVER_DIFF_TOTAL:
1200 if(unlikely(rd->counter <= 1)) {
1201 rd->calculated_value = 0;
1205 // if the new is smaller than the old (an overflow, or reset), set the old equal to the new
1206 // to reset the calculation (it will give zero as the calculation for this second)
1207 if(unlikely(rd->last_collected_value > rd->collected_value)) {
1208 debug(D_RRD_STATS, "%s.%s: RESET or OVERFLOW. Last collected value = " COLLECTED_NUMBER_FORMAT ", current = " COLLECTED_NUMBER_FORMAT
1209 , st->name, rd->name
1210 , rd->last_collected_value
1211 , rd->collected_value);
1212 if(!(rd->flags & RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS)) storage_flags = SN_EXISTS_RESET;
1213 rd->last_collected_value = rd->collected_value;
1216 // the percentage of the current increment
1217 // over the increment of all dimensions together
1218 if(unlikely(st->collected_total == st->last_collected_total))
1219 rd->calculated_value = 0;
1221 rd->calculated_value =
1222 (calculated_number)100
1223 * (calculated_number)(rd->collected_value - rd->last_collected_value)
1224 / (calculated_number)(st->collected_total - st->last_collected_total);
1226 if(unlikely(st->debug))
1227 debug(D_RRD_STATS, "%s/%s: CALC PCENT-DIFF "
1228 CALCULATED_NUMBER_FORMAT " = 100"
1229 " * (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
1230 " / (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
1232 , rd->calculated_value
1233 , rd->collected_value, rd->last_collected_value
1234 , st->collected_total, st->last_collected_total
1239 // make the default zero, to make sure
1240 // it gets noticed when we add new types
1241 rd->calculated_value = 0;
1243 if(unlikely(st->debug))
1244 debug(D_RRD_STATS, "%s/%s: CALC "
1245 CALCULATED_NUMBER_FORMAT " = 0"
1247 , rd->calculated_value
1252 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: PHASE2 "
1253 " last_collected_value = " COLLECTED_NUMBER_FORMAT
1254 " collected_value = " COLLECTED_NUMBER_FORMAT
1255 " last_calculated_value = " CALCULATED_NUMBER_FORMAT
1256 " calculated_value = " CALCULATED_NUMBER_FORMAT
1258 , rd->last_collected_value
1259 , rd->collected_value
1260 , rd->last_calculated_value
1261 , rd->calculated_value
1266 // at this point we have all the calculated values ready
1267 // it is now time to interpolate values on a second boundary
1269 unsigned long long first_ut = last_ut;
1270 long long iterations = (now_ut - last_ut) / (st->update_every * 1000000ULL);
1271 if((now_ut % (st->update_every * 1000000ULL)) == 0) iterations++;
1273 for( ; likely(next_ut <= now_ut) ; next_ut += st->update_every * 1000000ULL, iterations-- ) {
1274 #ifdef NETDATA_INTERNAL_CHECKS
1275 if(iterations < 0) { error("%s: iterations calculation wrapped! first_ut = %llu, last_ut = %llu, next_ut = %llu, now_ut = %llu", st->name, first_ut, last_ut, next_ut, now_ut); }
1278 if(unlikely(st->debug)) {
1279 debug(D_RRD_STATS, "%s: last ut = %0.3Lf (last updated time)", st->name, (long double)last_ut/1000000.0);
1280 debug(D_RRD_STATS, "%s: next ut = %0.3Lf (next interpolation point)", st->name, (long double)next_ut/1000000.0);
1283 st->last_updated.tv_sec = (time_t) (next_ut / 1000000ULL);
1284 st->last_updated.tv_usec = 0;
1286 for( rd = st->dimensions ; likely(rd) ; rd = rd->next ) {
1287 calculated_number new_value;
1289 switch(rd->algorithm) {
1290 case RRDDIM_INCREMENTAL:
1291 new_value = (calculated_number)
1292 ( rd->calculated_value
1293 * (calculated_number)(next_ut - last_ut)
1294 / (calculated_number)(now_ut - last_ut)
1297 if(unlikely(st->debug))
1298 debug(D_RRD_STATS, "%s/%s: CALC2 INC "
1299 CALCULATED_NUMBER_FORMAT " = "
1300 CALCULATED_NUMBER_FORMAT
1305 , rd->calculated_value
1306 , (next_ut - last_ut)
1307 , (now_ut - last_ut)
1310 rd->calculated_value -= new_value;
1311 new_value += rd->last_calculated_value;
1312 rd->last_calculated_value = 0;
1313 new_value /= (calculated_number)st->update_every;
1316 case RRDDIM_ABSOLUTE:
1317 case RRDDIM_PCENT_OVER_ROW_TOTAL:
1318 case RRDDIM_PCENT_OVER_DIFF_TOTAL:
1320 if(iterations == 1) {
1321 // this is the last iteration
1322 // do not interpolate
1323 // just show the calculated value
1325 new_value = rd->calculated_value;
1328 // we have missed an update
1329 // interpolate in the middle values
1331 new_value = (calculated_number)
1332 ( ( (rd->calculated_value - rd->last_calculated_value)
1333 * (calculated_number)(next_ut - first_ut)
1334 / (calculated_number)(now_ut - first_ut)
1336 + rd->last_calculated_value
1339 if(unlikely(st->debug))
1340 debug(D_RRD_STATS, "%s/%s: CALC2 DEF "
1341 CALCULATED_NUMBER_FORMAT " = ((("
1342 "(" CALCULATED_NUMBER_FORMAT " - " CALCULATED_NUMBER_FORMAT ")"
1344 " / %llu) + " CALCULATED_NUMBER_FORMAT
1347 , rd->calculated_value, rd->last_calculated_value
1348 , (next_ut - first_ut)
1349 , (now_ut - first_ut), rd->last_calculated_value
1353 // it fades the value towards the target
1354 // while we know the calculated value is different
1355 // if(likely(next_ut + st->update_every * 1000000ULL > now_ut)) rd->calculated_value = new_value;
1360 if(unlikely(!store_this_entry)) {
1361 // store_this_entry = 1;
1365 if(likely(rd->updated && rd->counter > 1 && iterations < st->gap_when_lost_iterations_above)) {
1366 rd->values[st->current_entry] = pack_storage_number(new_value, storage_flags );
1367 rd->last_stored_value = new_value;
1369 if(unlikely(st->debug))
1370 debug(D_RRD_STATS, "%s/%s: STORE[%ld] "
1371 CALCULATED_NUMBER_FORMAT " = " CALCULATED_NUMBER_FORMAT
1374 , unpack_storage_number(rd->values[st->current_entry]), new_value
1378 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: STORE[%ld] = NON EXISTING "
1382 rd->values[st->current_entry] = pack_storage_number(0, SN_NOT_EXISTS);
1383 rd->last_stored_value = NAN;
1388 if(unlikely(st->debug)) {
1389 calculated_number t1 = new_value * (calculated_number)rd->multiplier / (calculated_number)rd->divisor;
1390 calculated_number t2 = unpack_storage_number(rd->values[st->current_entry]);
1391 calculated_number accuracy = accuracy_loss(t1, t2);
1392 debug(D_RRD_STATS, "%s/%s: UNPACK[%ld] = " CALCULATED_NUMBER_FORMAT " FLAGS=0x%08x (original = " CALCULATED_NUMBER_FORMAT ", accuracy loss = " CALCULATED_NUMBER_FORMAT "%%%s)"
1396 , get_storage_number_flags(rd->values[st->current_entry])
1399 , (accuracy > ACCURACY_LOSS) ? " **TOO BIG** " : ""
1402 rd->collected_volume += t1;
1403 rd->stored_volume += t2;
1404 accuracy = accuracy_loss(rd->collected_volume, rd->stored_volume);
1405 debug(D_RRD_STATS, "%s/%s: VOLUME[%ld] = " CALCULATED_NUMBER_FORMAT ", calculated = " CALCULATED_NUMBER_FORMAT ", accuracy loss = " CALCULATED_NUMBER_FORMAT "%%%s"
1409 , rd->collected_volume
1411 , (accuracy > ACCURACY_LOSS) ? " **TOO BIG** " : ""
1416 // reset the storage flags for the next point, if any;
1417 storage_flags = SN_EXISTS;
1420 st->current_entry = ((st->current_entry + 1) >= st->entries) ? 0 : st->current_entry + 1;
1424 // align next interpolation to last collection point
1425 if(likely(stored_entries || !store_this_entry)) {
1426 st->last_updated.tv_sec = st->last_collected_time.tv_sec;
1427 st->last_updated.tv_usec = st->last_collected_time.tv_usec;
1428 st->last_collected_total = st->collected_total;
1431 for( rd = st->dimensions; likely(rd) ; rd = rd->next ) {
1432 if(unlikely(!rd->updated)) continue;
1434 if(likely(stored_entries || !store_this_entry)) {
1435 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: setting last_collected_value (old: " COLLECTED_NUMBER_FORMAT ") to last_collected_value (new: " COLLECTED_NUMBER_FORMAT ")", st->id, rd->name, rd->last_collected_value, rd->collected_value);
1436 rd->last_collected_value = rd->collected_value;
1438 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: setting last_calculated_value (old: " CALCULATED_NUMBER_FORMAT ") to last_calculated_value (new: " CALCULATED_NUMBER_FORMAT ")", st->id, rd->name, rd->last_calculated_value, rd->calculated_value);
1439 rd->last_calculated_value = rd->calculated_value;
1442 rd->calculated_value = 0;
1443 rd->collected_value = 0;
1446 if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: END "
1447 " last_collected_value = " COLLECTED_NUMBER_FORMAT
1448 " collected_value = " COLLECTED_NUMBER_FORMAT
1449 " last_calculated_value = " CALCULATED_NUMBER_FORMAT
1450 " calculated_value = " CALCULATED_NUMBER_FORMAT
1452 , rd->last_collected_value
1453 , rd->collected_value
1454 , rd->last_calculated_value
1455 , rd->calculated_value
1459 // ALL DONE ABOUT THE DATA UPDATE
1460 // --------------------------------------------------------------------
1462 // find if there are any obsolete dimensions (not updated recently)
1463 if(unlikely(rrd_delete_unupdated_dimensions)) {
1465 for( rd = st->dimensions; likely(rd) ; rd = rd->next )
1466 if((rd->last_collected_time.tv_sec + (rrd_delete_unupdated_dimensions * st->update_every)) < st->last_collected_time.tv_sec)
1470 // there is dimension to free
1471 // upgrade our read lock to a write lock
1472 pthread_rwlock_unlock(&st->rwlock);
1473 pthread_rwlock_wrlock(&st->rwlock);
1475 for( rd = st->dimensions, last = NULL ; likely(rd) ; ) {
1476 // remove it only it is not updated in rrd_delete_unupdated_dimensions seconds
1478 if(unlikely((rd->last_collected_time.tv_sec + (rrd_delete_unupdated_dimensions * st->update_every)) < st->last_collected_time.tv_sec)) {
1479 info("Removing obsolete dimension '%s' (%s) of '%s' (%s).", rd->name, rd->id, st->name, st->id);
1481 if(unlikely(!last)) {
1482 st->dimensions = rd->next;
1484 rrddim_free(st, rd);
1485 rd = st->dimensions;
1489 last->next = rd->next;
1491 rrddim_free(st, rd);
1501 if(unlikely(!st->dimensions)) {
1502 info("Disabling chart %s (%s) since it does not have any dimensions", st->name, st->id);
1508 pthread_rwlock_unlock(&st->rwlock);
1510 if(unlikely(pthread_setcancelstate(oldstate, NULL) != 0))
1511 error("Cannot set pthread cancel state to RESTORE (%d).", oldstate);
1513 return(st->usec_since_last_update);