diff options
Diffstat (limited to 'database/rrdset.c')
| -rw-r--r-- | database/rrdset.c | 2361 |
1 files changed, 0 insertions, 2361 deletions
diff --git a/database/rrdset.c b/database/rrdset.c deleted file mode 100644 index f4bb48aa..00000000 --- a/database/rrdset.c +++ /dev/null @@ -1,2361 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#define NETDATA_RRD_INTERNALS -#include "rrd.h" -#include <sched.h> -#include "storage_engine.h" - - -void rrdset_metadata_updated(RRDSET *st) { - __atomic_add_fetch(&st->version, 1, __ATOMIC_RELAXED); - rrdcontext_updated_rrdset(st); -} - -// ---------------------------------------------------------------------------- -// RRDSET rrdpush send chart_slots - -static void rrdset_rrdpush_send_chart_slot_assign(RRDSET *st) { - RRDHOST *host = st->rrdhost; - spinlock_lock(&host->rrdpush.send.pluginsd_chart_slots.available.spinlock); - - if(host->rrdpush.send.pluginsd_chart_slots.available.used > 0) - st->rrdpush.sender.chart_slot = - host->rrdpush.send.pluginsd_chart_slots.available.array[--host->rrdpush.send.pluginsd_chart_slots.available.used]; - else - st->rrdpush.sender.chart_slot = ++host->rrdpush.send.pluginsd_chart_slots.last_used; - - spinlock_unlock(&host->rrdpush.send.pluginsd_chart_slots.available.spinlock); -} - -static void rrdset_rrdpush_send_chart_slot_release(RRDSET *st) { - if(!st->rrdpush.sender.chart_slot || st->rrdhost->rrdpush.send.pluginsd_chart_slots.available.ignore) - return; - - RRDHOST *host = st->rrdhost; - spinlock_lock(&host->rrdpush.send.pluginsd_chart_slots.available.spinlock); - - if(host->rrdpush.send.pluginsd_chart_slots.available.used >= host->rrdpush.send.pluginsd_chart_slots.available.size) { - uint32_t old_size = host->rrdpush.send.pluginsd_chart_slots.available.size; - uint32_t new_size = (old_size > 0) ? (old_size * 2) : 1024; - - host->rrdpush.send.pluginsd_chart_slots.available.array = - reallocz(host->rrdpush.send.pluginsd_chart_slots.available.array, new_size * sizeof(uint32_t)); - - host->rrdpush.send.pluginsd_chart_slots.available.size = new_size; - } - - host->rrdpush.send.pluginsd_chart_slots.available.array[host->rrdpush.send.pluginsd_chart_slots.available.used++] = - st->rrdpush.sender.chart_slot; - - st->rrdpush.sender.chart_slot = 0; - spinlock_unlock(&host->rrdpush.send.pluginsd_chart_slots.available.spinlock); -} - -void rrdhost_pluginsd_send_chart_slots_free(RRDHOST *host) { - spinlock_lock(&host->rrdpush.send.pluginsd_chart_slots.available.spinlock); - host->rrdpush.send.pluginsd_chart_slots.available.ignore = true; - freez(host->rrdpush.send.pluginsd_chart_slots.available.array); - host->rrdpush.send.pluginsd_chart_slots.available.array = NULL; - host->rrdpush.send.pluginsd_chart_slots.available.used = 0; - host->rrdpush.send.pluginsd_chart_slots.available.size = 0; - spinlock_unlock(&host->rrdpush.send.pluginsd_chart_slots.available.spinlock); - - // zero all the slots on all charts, so that they will not attempt to access the array - RRDSET *st; - rrdset_foreach_read(st, host) { - st->rrdpush.sender.chart_slot = 0; - } - rrdset_foreach_done(st); -} - -void rrdset_pluginsd_receive_unslot(RRDSET *st) { - for(size_t i = 0; i < st->pluginsd.size ;i++) { - rrddim_acquired_release(st->pluginsd.prd_array[i].rda); // can be NULL - st->pluginsd.prd_array[i].rda = NULL; - st->pluginsd.prd_array[i].rd = NULL; - st->pluginsd.prd_array[i].id = NULL; - } - - RRDHOST *host = st->rrdhost; - - if(st->pluginsd.last_slot >= 0 && - (uint32_t)st->pluginsd.last_slot < host->rrdpush.receive.pluginsd_chart_slots.size && - host->rrdpush.receive.pluginsd_chart_slots.array[st->pluginsd.last_slot] == st) { - host->rrdpush.receive.pluginsd_chart_slots.array[st->pluginsd.last_slot] = NULL; - } - - st->pluginsd.last_slot = -1; - st->pluginsd.dims_with_slots = false; -} - -void rrdset_pluginsd_receive_unslot_and_cleanup(RRDSET *st) { - if(!st) - return; - - spinlock_lock(&st->pluginsd.spinlock); - - rrdset_pluginsd_receive_unslot(st); - - freez(st->pluginsd.prd_array); - st->pluginsd.prd_array = NULL; - st->pluginsd.size = 0; - st->pluginsd.pos = 0; - st->pluginsd.set = false; - st->pluginsd.last_slot = -1; - st->pluginsd.dims_with_slots = false; - st->pluginsd.collector_tid = 0; - - spinlock_unlock(&st->pluginsd.spinlock); -} - -static void rrdset_pluginsd_receive_slots_initialize(RRDSET *st) { - spinlock_init(&st->pluginsd.spinlock); - st->pluginsd.last_slot = -1; -} - -void rrdhost_pluginsd_receive_chart_slots_free(RRDHOST *host) { - spinlock_lock(&host->rrdpush.receive.pluginsd_chart_slots.spinlock); - - if(host->rrdpush.receive.pluginsd_chart_slots.array) { - for (size_t s = 0; s < host->rrdpush.receive.pluginsd_chart_slots.size; s++) - rrdset_pluginsd_receive_unslot_and_cleanup(host->rrdpush.receive.pluginsd_chart_slots.array[s]); - - freez(host->rrdpush.receive.pluginsd_chart_slots.array); - host->rrdpush.receive.pluginsd_chart_slots.array = NULL; - host->rrdpush.receive.pluginsd_chart_slots.size = 0; - } - - spinlock_unlock(&host->rrdpush.receive.pluginsd_chart_slots.spinlock); -} - -// ---------------------------------------------------------------------------- -// RRDSET name index - -static void rrdset_name_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdset, void *rrdhost __maybe_unused) { - RRDSET *st = rrdset; - rrdset_flag_set(st, RRDSET_FLAG_INDEXED_NAME); -} -static void rrdset_name_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdset, void *rrdhost __maybe_unused) { - RRDSET *st = rrdset; - rrdset_flag_clear(st, RRDSET_FLAG_INDEXED_NAME); -} - -static inline void rrdset_index_add_name(RRDHOST *host, RRDSET *st) { - if(!st->name) return; - dictionary_set(host->rrdset_root_index_name, rrdset_name(st), st, sizeof(RRDSET)); -} - -static inline void rrdset_index_del_name(RRDHOST *host, RRDSET *st) { - if(rrdset_flag_check(st, RRDSET_FLAG_INDEXED_NAME)) - dictionary_del(host->rrdset_root_index_name, rrdset_name(st)); -} - -static inline RRDSET *rrdset_index_find_name(RRDHOST *host, const char *name) { - if (unlikely(!host->rrdset_root_index_name)) - return NULL; - return dictionary_get(host->rrdset_root_index_name, name); -} - -// ---------------------------------------------------------------------------- -// RRDSET index - -static inline void rrdset_update_permanent_labels(RRDSET *st) { - if(!st->rrdlabels) return; - - rrdlabels_add(st->rrdlabels, "_collect_plugin", rrdset_plugin_name(st), RRDLABEL_SRC_AUTO | RRDLABEL_FLAG_DONT_DELETE); - rrdlabels_add(st->rrdlabels, "_collect_module", rrdset_module_name(st), RRDLABEL_SRC_AUTO | RRDLABEL_FLAG_DONT_DELETE); -} - -static STRING *rrdset_fix_name(RRDHOST *host, const char *chart_full_id, const char *type, const char *current_name, const char *name) { - if(!name || !*name) return NULL; - - char full_name[RRD_ID_LENGTH_MAX + 1]; - char sanitized_name[CONFIG_MAX_VALUE + 1]; - char new_name[CONFIG_MAX_VALUE + 1]; - - snprintfz(full_name, RRD_ID_LENGTH_MAX, "%s.%s", type, name); - rrdset_strncpyz_name(sanitized_name, full_name, CONFIG_MAX_VALUE); - strncpyz(new_name, sanitized_name, CONFIG_MAX_VALUE); - - if(rrdset_index_find_name(host, new_name)) { - netdata_log_debug(D_RRD_CALLS, "RRDSET: chart name '%s' on host '%s' already exists.", new_name, rrdhost_hostname(host)); - if(!strcmp(chart_full_id, full_name) && (!current_name || !*current_name)) { - unsigned i = 1; - - do { - snprintfz(new_name, CONFIG_MAX_VALUE, "%s_%u", sanitized_name, i); - i++; - } while (rrdset_index_find_name(host, new_name)); - -// netdata_log_info("RRDSET: using name '%s' for chart '%s' on host '%s'.", new_name, full_name, rrdhost_hostname(host)); - } - else - return NULL; - } - - return string_strdupz(new_name); -} - -struct rrdset_constructor { - RRDHOST *host; - const char *type; - const char *id; - const char *name; - const char *family; - const char *context; - const char *title; - const char *units; - const char *plugin; - const char *module; - long priority; - int update_every; - RRDSET_TYPE chart_type; - RRD_MEMORY_MODE memory_mode; - long history_entries; - - enum { - RRDSET_REACT_NONE = 0, - RRDSET_REACT_NEW = (1 << 0), - RRDSET_REACT_UPDATED = (1 << 1), - RRDSET_REACT_PLUGIN_UPDATED = (1 << 2), - RRDSET_REACT_MODULE_UPDATED = (1 << 3), - RRDSET_REACT_CHART_ACTIVATED = (1 << 4), - } react_action; -}; - -// the constructor - the dictionary is write locked while this runs -static void rrdset_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdset, void *constructor_data) { - struct rrdset_constructor *ctr = constructor_data; - RRDHOST *host = ctr->host; - RRDSET *st = rrdset; - - const char *chart_full_id = dictionary_acquired_item_name(item); - - st->id = string_strdupz(chart_full_id); - - st->name = rrdset_fix_name(host, chart_full_id, ctr->type, NULL, ctr->name); - if(!st->name) - st->name = rrdset_fix_name(host, chart_full_id, ctr->type, NULL, ctr->id); - rrdset_index_add_name(host, st); - - st->parts.id = string_strdupz(ctr->id); - st->parts.type = string_strdupz(ctr->type); - st->parts.name = string_strdupz(ctr->name); - - st->family = (ctr->family && *ctr->family) ? rrd_string_strdupz(ctr->family) : rrd_string_strdupz(ctr->type); - st->context = (ctr->context && *ctr->context) ? rrd_string_strdupz(ctr->context) : rrd_string_strdupz(chart_full_id); - - st->units = rrd_string_strdupz(ctr->units); - st->title = rrd_string_strdupz(ctr->title); - st->plugin_name = rrd_string_strdupz(ctr->plugin); - st->module_name = rrd_string_strdupz(ctr->module); - st->priority = ctr->priority; - - st->db.entries = (ctr->memory_mode != RRD_MEMORY_MODE_DBENGINE) ? align_entries_to_pagesize(ctr->memory_mode, ctr->history_entries) : 5; - st->update_every = ctr->update_every; - st->rrd_memory_mode = ctr->memory_mode; - - st->chart_type = ctr->chart_type; - st->rrdhost = host; - - rrdset_rrdpush_send_chart_slot_assign(st); - - spinlock_init(&st->data_collection_lock); - - st->flags = RRDSET_FLAG_SYNC_CLOCK - | RRDSET_FLAG_INDEXED_ID - | RRDSET_FLAG_RECEIVER_REPLICATION_FINISHED - | RRDSET_FLAG_SENDER_REPLICATION_FINISHED - ; - - rw_spinlock_init(&st->alerts.spinlock); - - if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || st->rrd_memory_mode == RRD_MEMORY_MODE_MAP) { - if(!rrdset_memory_load_or_create_map_save(st, st->rrd_memory_mode)) { - netdata_log_info("Failed to use db mode %s for chart '%s', falling back to ram mode.", (st->rrd_memory_mode == RRD_MEMORY_MODE_MAP)?"map":"save", rrdset_name(st)); - st->rrd_memory_mode = RRD_MEMORY_MODE_RAM; - } - } - - // initialize the db tiers - { - for(size_t tier = 0; tier < storage_tiers ; tier++) { - STORAGE_ENGINE *eng = st->rrdhost->db[tier].eng; - if(!eng) continue; - - st->storage_metrics_groups[tier] = storage_engine_metrics_group_get(eng->backend, host->db[tier].instance, &st->chart_uuid); - } - } - - rrddim_index_init(st); - - // chart variables - we need this for data collection to work (collector given chart variables) - not only health - rrdsetvar_index_init(st); - - if (host->health.health_enabled) { - st->rrdfamily = rrdfamily_add_and_acquire(host, rrdset_family(st)); - st->rrdvars = rrdvariables_create(); - rrddimvar_index_init(st); - } - - st->rrdlabels = rrdlabels_create(); - rrdset_update_permanent_labels(st); - - st->green = NAN; - st->red = NAN; - - rrdset_pluginsd_receive_slots_initialize(st); - - ctr->react_action = RRDSET_REACT_NEW; - - ml_chart_new(st); -} - -void rrdset_finalize_collection(RRDSET *st, bool dimensions_too) { - RRDHOST *host = st->rrdhost; - - rrdset_flag_set(st, RRDSET_FLAG_COLLECTION_FINISHED); - - if(dimensions_too) { - RRDDIM *rd; - rrddim_foreach_read(rd, st) - rrddim_finalize_collection_and_check_retention(rd); - rrddim_foreach_done(rd); - } - - for(size_t tier = 0; tier < storage_tiers ; tier++) { - STORAGE_ENGINE *eng = st->rrdhost->db[tier].eng; - if(!eng) continue; - - if(st->storage_metrics_groups[tier]) { - storage_engine_metrics_group_release(eng->backend, host->db[tier].instance, st->storage_metrics_groups[tier]); - st->storage_metrics_groups[tier] = NULL; - } - } - - rrdset_pluginsd_receive_unslot_and_cleanup(st); -} - -// the destructor - the dictionary is write locked while this runs -static void rrdset_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdset, void *rrdhost) { - RRDHOST *host = rrdhost; - RRDSET *st = rrdset; - - rrdset_flag_clear(st, RRDSET_FLAG_INDEXED_ID); - - rrdset_finalize_collection(st, false); - - rrdset_rrdpush_send_chart_slot_release(st); - - // remove it from the name index - rrdset_index_del_name(host, st); - - // release the collector info - dictionary_destroy(st->functions_view); - - rrdcalc_unlink_all_rrdset_alerts(st); - - // ------------------------------------------------------------------------ - // the order of destruction is important here - - // 1. delete RRDDIMVAR index - this will speed up the destruction of RRDDIMs - // because each dimension loops to find its own variables in this index. - // There are no references to the items on this index from the dimensions. - // To find their own, they have to walk-through the dictionary. - rrddimvar_index_destroy(st); // destroy the rrddimvar index - - // 2. delete RRDSETVAR index - rrdsetvar_index_destroy(st); // destroy the rrdsetvar index - - // 3. delete RRDVAR index after the above, to avoid triggering its garbage collector (they have references on this) - rrdvariables_destroy(st->rrdvars); // free all variables and destroy the rrdvar dictionary - - // 4. delete RRDFAMILY - this has to be last, because RRDDIMVAR and RRDSETVAR need the reference counter - rrdfamily_release(host, st->rrdfamily); // release the acquired rrdfamily -- has to be after all variables - - // 5. delete RRDDIMs, now their variables are not existing, so this is fast - rrddim_index_destroy(st); // free all the dimensions and destroy the dimensions index - - // 6. this has to be after the dimensions are freed, but before labels are freed (contexts need the labels) - rrdcontext_removed_rrdset(st); // let contexts know - - // 7. destroy the chart labels - rrdlabels_destroy(st->rrdlabels); // destroy the labels, after letting the contexts know - - // 8. destroy the ml handle - ml_chart_delete(st); - - rrdset_memory_file_free(st); // remove files of db mode save and map - - // ------------------------------------------------------------------------ - // free it - - string_freez(st->id); - string_freez(st->name); - string_freez(st->parts.id); - string_freez(st->parts.type); - string_freez(st->parts.name); - string_freez(st->family); - string_freez(st->title); - string_freez(st->units); - string_freez(st->context); - string_freez(st->plugin_name); - string_freez(st->module_name); - - freez(st->exporting_flags); - freez(st->db.cache_dir); -} - -// the item to be inserted, is already in the dictionary -// this callback deals with the situation, migrating the existing object to the new values -// the dictionary is write locked while this runs -static bool rrdset_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdset, void *new_rrdset, void *constructor_data) { - (void)new_rrdset; // it is NULL - - struct rrdset_constructor *ctr = constructor_data; - RRDSET *st = rrdset; - - rrdset_isnot_obsolete___safe_from_collector_thread(st); - - ctr->react_action = RRDSET_REACT_NONE; - - if (rrdset_reset_name(st, (ctr->name && *ctr->name) ? ctr->name : ctr->id) == 2) - ctr->react_action |= RRDSET_REACT_UPDATED; - - if (unlikely(st->priority != ctr->priority)) { - st->priority = ctr->priority; - ctr->react_action |= RRDSET_REACT_UPDATED; - } - - if (unlikely(st->update_every != ctr->update_every)) { - rrdset_set_update_every_s(st, ctr->update_every); - ctr->react_action |= RRDSET_REACT_UPDATED; - } - - if(ctr->plugin && *ctr->plugin) { - STRING *old_plugin = st->plugin_name; - st->plugin_name = rrd_string_strdupz(ctr->plugin); - if (old_plugin != st->plugin_name) - ctr->react_action |= RRDSET_REACT_PLUGIN_UPDATED; - string_freez(old_plugin); - } - - if(ctr->module && *ctr->module) { - STRING *old_module = st->module_name; - st->module_name = rrd_string_strdupz(ctr->module); - if (old_module != st->module_name) - ctr->react_action |= RRDSET_REACT_MODULE_UPDATED; - string_freez(old_module); - } - - if(ctr->title && *ctr->title) { - STRING *old_title = st->title; - st->title = rrd_string_strdupz(ctr->title); - if(old_title != st->title) - ctr->react_action |= RRDSET_REACT_UPDATED; - string_freez(old_title); - } - - if(ctr->units && *ctr->units) { - STRING *old_units = st->units; - st->units = rrd_string_strdupz(ctr->units); - if(old_units != st->units) - ctr->react_action |= RRDSET_REACT_UPDATED; - string_freez(old_units); - } - - if(ctr->family && *ctr->family) { - STRING *old_family = st->family; - st->family = rrd_string_strdupz(ctr->family); - if(old_family != st->family) - ctr->react_action |= RRDSET_REACT_UPDATED; - string_freez(old_family); - - // TODO - we should rename RRDFAMILY variables - } - - if(ctr->context && *ctr->context) { - STRING *old_context = st->context; - st->context = rrd_string_strdupz(ctr->context); - if(old_context != st->context) - ctr->react_action |= RRDSET_REACT_UPDATED; - string_freez(old_context); - } - - if(st->chart_type != ctr->chart_type) { - st->chart_type = ctr->chart_type; - ctr->react_action |= RRDSET_REACT_UPDATED; - } - - rrdset_update_permanent_labels(st); - - rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK); - - return ctr->react_action != RRDSET_REACT_NONE; -} - -// this is called after all insertions/conflicts, with the dictionary unlocked, with a reference to RRDSET -// so, any actions requiring locks on other objects, should be placed here -static void rrdset_react_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdset, void *constructor_data) { - struct rrdset_constructor *ctr = constructor_data; - RRDSET *st = rrdset; - RRDHOST *host = st->rrdhost; - - st->last_accessed_time_s = now_realtime_sec(); - - if(host->health.health_enabled && (ctr->react_action & (RRDSET_REACT_NEW | RRDSET_REACT_CHART_ACTIVATED))) { - rrdset_flag_set(st, RRDSET_FLAG_PENDING_HEALTH_INITIALIZATION); - rrdhost_flag_set(st->rrdhost, RRDHOST_FLAG_PENDING_HEALTH_INITIALIZATION); - } - - if(ctr->react_action & (RRDSET_REACT_NEW | RRDSET_REACT_PLUGIN_UPDATED | RRDSET_REACT_MODULE_UPDATED)) { - if (ctr->react_action & RRDSET_REACT_NEW) { - if(unlikely(rrdcontext_find_chart_uuid(st, &st->chart_uuid))) - uuid_generate(st->chart_uuid); - } - rrdset_flag_set(st, RRDSET_FLAG_METADATA_UPDATE); - rrdhost_flag_set(st->rrdhost, RRDHOST_FLAG_METADATA_UPDATE); - } - - rrdset_metadata_updated(st); -} - -void rrdset_index_init(RRDHOST *host) { - if(!host->rrdset_root_index) { - host->rrdset_root_index = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_FIXED_SIZE, - &dictionary_stats_category_rrdset_rrddim, sizeof(RRDSET)); - - dictionary_register_insert_callback(host->rrdset_root_index, rrdset_insert_callback, NULL); - dictionary_register_conflict_callback(host->rrdset_root_index, rrdset_conflict_callback, NULL); - dictionary_register_react_callback(host->rrdset_root_index, rrdset_react_callback, NULL); - dictionary_register_delete_callback(host->rrdset_root_index, rrdset_delete_callback, host); - } - - if(!host->rrdset_root_index_name) { - host->rrdset_root_index_name = dictionary_create_advanced( - DICT_OPTION_NAME_LINK_DONT_CLONE | DICT_OPTION_VALUE_LINK_DONT_CLONE | DICT_OPTION_DONT_OVERWRITE_VALUE, - &dictionary_stats_category_rrdset_rrddim, 0); - - dictionary_register_insert_callback(host->rrdset_root_index_name, rrdset_name_insert_callback, host); - dictionary_register_delete_callback(host->rrdset_root_index_name, rrdset_name_delete_callback, host); - } -} - -void rrdset_index_destroy(RRDHOST *host) { - // destroy the name index first - dictionary_destroy(host->rrdset_root_index_name); - host->rrdset_root_index_name = NULL; - - // destroy the id index last - dictionary_destroy(host->rrdset_root_index); - host->rrdset_root_index = NULL; -} - -static inline RRDSET *rrdset_index_add(RRDHOST *host, const char *id, struct rrdset_constructor *st_ctr) { - return dictionary_set_advanced(host->rrdset_root_index, id, -1, NULL, sizeof(RRDSET), st_ctr); -} - -static inline void rrdset_index_del(RRDHOST *host, RRDSET *st) { - if(rrdset_flag_check(st, RRDSET_FLAG_INDEXED_ID)) - dictionary_del(host->rrdset_root_index, rrdset_id(st)); -} - -static RRDSET *rrdset_index_find(RRDHOST *host, const char *id) { - // TODO - the name index should have an acquired dictionary item, not just a pointer to RRDSET - if (unlikely(!host->rrdset_root_index)) - return NULL; - return dictionary_get(host->rrdset_root_index, id); -} - -// ---------------------------------------------------------------------------- -// RRDSET - find charts - -inline RRDSET *rrdset_find(RRDHOST *host, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrdset_find() for chart '%s' in host '%s'", id, rrdhost_hostname(host)); - RRDSET *st = rrdset_index_find(host, id); - - if(st) - st->last_accessed_time_s = now_realtime_sec(); - - return(st); -} - -inline RRDSET *rrdset_find_bytype(RRDHOST *host, const char *type, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrdset_find_bytype() for chart '%s.%s' in host '%s'", type, id, rrdhost_hostname(host)); - - char buf[RRD_ID_LENGTH_MAX + 1]; - strncpyz(buf, type, RRD_ID_LENGTH_MAX - 1); - strcat(buf, "."); - int len = (int) strlen(buf); - strncpyz(&buf[len], id, (size_t) (RRD_ID_LENGTH_MAX - len)); - - return(rrdset_find(host, buf)); -} - -inline RRDSET *rrdset_find_byname(RRDHOST *host, const char *name) { - netdata_log_debug(D_RRD_CALLS, "rrdset_find_byname() for chart '%s' in host '%s'", name, rrdhost_hostname(host)); - RRDSET *st = rrdset_index_find_name(host, name); - return(st); -} - -RRDSET_ACQUIRED *rrdset_find_and_acquire(RRDHOST *host, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrdset_find_and_acquire() for host %s, chart %s", rrdhost_hostname(host), id); - - return (RRDSET_ACQUIRED *)dictionary_get_and_acquire_item(host->rrdset_root_index, id); -} - -RRDSET *rrdset_acquired_to_rrdset(RRDSET_ACQUIRED *rsa) { - if(unlikely(!rsa)) - return NULL; - - return (RRDSET *) dictionary_acquired_item_value((const DICTIONARY_ITEM *)rsa); -} - -void rrdset_acquired_release(RRDSET_ACQUIRED *rsa) { - if(unlikely(!rsa)) - return; - - RRDSET *rs = rrdset_acquired_to_rrdset(rsa); - dictionary_acquired_item_release(rs->rrdhost->rrdset_root_index, (const DICTIONARY_ITEM *)rsa); -} - -// ---------------------------------------------------------------------------- -// RRDSET - rename charts - -char *rrdset_strncpyz_name(char *to, const char *from, size_t length) { - char c, *p = to; - - while (length-- && (c = *from++)) { - if(c != '.' && c != '-' && !isalnum(c)) - c = '_'; - - *p++ = c; - } - - *p = '\0'; - - return to; -} - -int rrdset_reset_name(RRDSET *st, const char *name) { - if(unlikely(!strcmp(rrdset_name(st), name))) - return 1; - - RRDHOST *host = st->rrdhost; - - netdata_log_debug(D_RRD_CALLS, "rrdset_reset_name() old: '%s', new: '%s'", rrdset_name(st), name); - - STRING *name_string = rrdset_fix_name(host, rrdset_id(st), rrdset_parts_type(st), string2str(st->name), name); - if(!name_string) return 0; - - if(st->name) { - rrdset_index_del_name(host, st); - string_freez(st->name); - st->name = name_string; - rrdsetvar_rename_all(st); - } - else - st->name = name_string; - - RRDDIM *rd; - rrddim_foreach_read(rd, st) - rrddimvar_rename_all(rd); - rrddim_foreach_done(rd); - - rrdset_index_add_name(host, st); - - rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_SEND); - rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_IGNORE); - rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND); - rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_IGNORE); - rrdset_metadata_updated(st); - - rrdcontext_updated_rrdset_name(st); - return 2; -} - -// get the timestamp of the last entry in the round-robin database -time_t rrdset_last_entry_s(RRDSET *st) { - RRDDIM *rd; - time_t last_entry_s = 0; - - rrddim_foreach_read(rd, st) { - time_t t = rrddim_last_entry_s(rd); - if(t > last_entry_s) last_entry_s = t; - } - rrddim_foreach_done(rd); - - return last_entry_s; -} - -time_t rrdset_last_entry_s_of_tier(RRDSET *st, size_t tier) { - RRDDIM *rd; - time_t last_entry_s = 0; - - rrddim_foreach_read(rd, st) { - time_t t = rrddim_last_entry_s_of_tier(rd, tier); - if(t > last_entry_s) last_entry_s = t; - } - rrddim_foreach_done(rd); - - return last_entry_s; -} - -// get the timestamp of first entry in the round-robin database -time_t rrdset_first_entry_s(RRDSET *st) { - RRDDIM *rd; - time_t first_entry_s = LONG_MAX; - - rrddim_foreach_read(rd, st) { - time_t t = rrddim_first_entry_s(rd); - if(t < first_entry_s) - first_entry_s = t; - } - rrddim_foreach_done(rd); - - if (unlikely(LONG_MAX == first_entry_s)) return 0; - return first_entry_s; -} - -time_t rrdset_first_entry_s_of_tier(RRDSET *st, size_t tier) { - if(unlikely(tier > storage_tiers)) - return 0; - - RRDDIM *rd; - time_t first_entry_s = LONG_MAX; - - rrddim_foreach_read(rd, st) { - time_t t = rrddim_first_entry_s_of_tier(rd, tier); - if(t && t < first_entry_s) - first_entry_s = t; - } - rrddim_foreach_done(rd); - - if (unlikely(LONG_MAX == first_entry_s)) return 0; - return first_entry_s; -} - -void rrdset_get_retention_of_tier_for_collected_chart(RRDSET *st, time_t *first_time_s, time_t *last_time_s, time_t now_s, size_t tier) { - if(!now_s) - now_s = now_realtime_sec(); - - time_t db_first_entry_s = rrdset_first_entry_s_of_tier(st, tier); - time_t db_last_entry_s = st->last_updated.tv_sec; // we assume this is a collected RRDSET - - if(unlikely(!db_last_entry_s)) { - db_last_entry_s = rrdset_last_entry_s_of_tier(st, tier); - - if (unlikely(!db_last_entry_s)) { - // we assume this is a collected RRDSET - db_first_entry_s = 0; - db_last_entry_s = 0; - } - } - - if(unlikely(db_last_entry_s > now_s)) { - internal_error(db_last_entry_s > now_s + 1, - "RRDSET: 'host:%s/chart:%s' latest db time %ld is in the future, adjusting it to now %ld", - rrdhost_hostname(st->rrdhost), rrdset_id(st), - db_last_entry_s, now_s); - db_last_entry_s = now_s; - } - - if(unlikely(db_first_entry_s && db_last_entry_s && db_first_entry_s >= db_last_entry_s)) { - internal_error(db_first_entry_s > db_last_entry_s, - "RRDSET: 'host:%s/chart:%s' oldest db time %ld is bigger than latest db time %ld, adjusting it to (latest time %ld - update every %ld)", - rrdhost_hostname(st->rrdhost), rrdset_id(st), - db_first_entry_s, db_last_entry_s, - db_last_entry_s, (time_t)st->update_every); - db_first_entry_s = db_last_entry_s - st->update_every; - } - - if(unlikely(!db_first_entry_s && db_last_entry_s)) - // this can be the case on the first data collection of a chart - db_first_entry_s = db_last_entry_s - st->update_every; - - *first_time_s = db_first_entry_s; - *last_time_s = db_last_entry_s; -} - -inline void rrdset_is_obsolete___safe_from_collector_thread(RRDSET *st) { - rrdset_pluginsd_receive_unslot(st); - - if(unlikely(!(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) { -// netdata_log_info("Setting obsolete flag on chart 'host:%s/chart:%s'", -// rrdhost_hostname(st->rrdhost), rrdset_id(st)); - - rrdset_flag_set(st, RRDSET_FLAG_OBSOLETE); - rrdhost_flag_set(st->rrdhost, RRDHOST_FLAG_PENDING_OBSOLETE_CHARTS); - - st->last_accessed_time_s = now_realtime_sec(); - - rrdset_metadata_updated(st); - - // the chart will not get more updates (data collection) - // so, we have to push its definition now - rrdset_push_chart_definition_now(st); - rrdcontext_updated_rrdset_flags(st); - } -} - -inline void rrdset_isnot_obsolete___safe_from_collector_thread(RRDSET *st) { - if(unlikely((rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) { - -// netdata_log_info("Clearing obsolete flag on chart 'host:%s/chart:%s'", -// rrdhost_hostname(st->rrdhost), rrdset_id(st)); - - rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE); - st->last_accessed_time_s = now_realtime_sec(); - - rrdset_metadata_updated(st); - - // the chart will be pushed upstream automatically - // due to data collection - rrdcontext_updated_rrdset_flags(st); - } -} - -inline void rrdset_update_heterogeneous_flag(RRDSET *st) { - RRDHOST *host = st->rrdhost; - (void)host; - - RRDDIM *rd; - - rrdset_flag_clear(st, RRDSET_FLAG_HOMOGENEOUS_CHECK); - - bool init = false, is_heterogeneous = false; - RRD_ALGORITHM algorithm; - int32_t multiplier; - int32_t divisor; - - rrddim_foreach_read(rd, st) { - if(!init) { - algorithm = rd->algorithm; - multiplier = rd->multiplier; - divisor = ABS(rd->divisor); - init = true; - continue; - } - - if(algorithm != rd->algorithm || multiplier != ABS(rd->multiplier) || divisor != ABS(rd->divisor)) { - if(!rrdset_flag_check(st, RRDSET_FLAG_HETEROGENEOUS)) { - #ifdef NETDATA_INTERNAL_CHECKS - netdata_log_info("Dimension '%s' added on chart '%s' of host '%s' is not homogeneous to other dimensions already present " - "(algorithm is '%s' vs '%s', multiplier is %d vs %d, " - "divisor is %d vs %d).", - rrddim_name(rd), - rrdset_name(st), - rrdhost_hostname(host), - rrd_algorithm_name(rd->algorithm), rrd_algorithm_name(algorithm), - rd->multiplier, multiplier, - rd->divisor, divisor - ); - #endif - rrdset_flag_set(st, RRDSET_FLAG_HETEROGENEOUS); - } - - is_heterogeneous = true; - break; - } - } - rrddim_foreach_done(rd); - - if(!is_heterogeneous) { - rrdset_flag_clear(st, RRDSET_FLAG_HETEROGENEOUS); - rrdcontext_updated_rrdset_flags(st); - } -} - -// ---------------------------------------------------------------------------- -// RRDSET - reset a chart - -void rrdset_reset(RRDSET *st) { - netdata_log_debug(D_RRD_CALLS, "rrdset_reset() %s", rrdset_name(st)); - - st->last_collected_time.tv_sec = 0; - st->last_collected_time.tv_usec = 0; - st->last_updated.tv_sec = 0; - st->last_updated.tv_usec = 0; - st->db.current_entry = 0; - st->counter = 0; - st->counter_done = 0; - - RRDDIM *rd; - rrddim_foreach_read(rd, st) { - rd->collector.last_collected_time.tv_sec = 0; - rd->collector.last_collected_time.tv_usec = 0; - rd->collector.counter = 0; - - if(!rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) { - for(size_t tier = 0; tier < storage_tiers ;tier++) - storage_engine_store_flush(rd->tiers[tier].db_collection_handle); - } - } - rrddim_foreach_done(rd); -} - -// ---------------------------------------------------------------------------- -// RRDSET - helpers for rrdset_create() - -inline long align_entries_to_pagesize(RRD_MEMORY_MODE mode, long entries) { - if(mode == RRD_MEMORY_MODE_DBENGINE) return 0; - if(mode == RRD_MEMORY_MODE_NONE) return 5; - - if(entries < 5) entries = 5; - if(entries > RRD_HISTORY_ENTRIES_MAX) entries = RRD_HISTORY_ENTRIES_MAX; - - if(mode == RRD_MEMORY_MODE_MAP || mode == RRD_MEMORY_MODE_SAVE || mode == RRD_MEMORY_MODE_RAM) { - long header_size = 0; - - if(mode == RRD_MEMORY_MODE_MAP || mode == RRD_MEMORY_MODE_SAVE) - header_size = (long)rrddim_memory_file_header_size(); - - long page = (long)sysconf(_SC_PAGESIZE); - long size = (long)(header_size + entries * sizeof(storage_number)); - if (unlikely(size % page)) { - size -= (size % page); - size += page; - - long n = (long)((size - header_size) / sizeof(storage_number)); - return n; - } - } - - return entries; -} - -static inline void last_collected_time_align(RRDSET *st) { - st->last_collected_time.tv_sec -= st->last_collected_time.tv_sec % st->update_every; - - if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST))) - st->last_collected_time.tv_usec = 0; - else - st->last_collected_time.tv_usec = 500000; -} - -static inline void last_updated_time_align(RRDSET *st) { - st->last_updated.tv_sec -= st->last_updated.tv_sec % st->update_every; - st->last_updated.tv_usec = 0; -} - -// ---------------------------------------------------------------------------- -// RRDSET - free a chart - -void rrdset_free(RRDSET *st) { - if(unlikely(!st)) return; - rrdset_index_del(st->rrdhost, st); -} - -void rrdset_save(RRDSET *st) { - rrdset_memory_file_save(st); - - RRDDIM *rd; - rrddim_foreach_read(rd, st) - rrddim_memory_file_save(rd); - rrddim_foreach_done(rd); -} - -void rrdset_delete_files(RRDSET *st) { - RRDDIM *rd; - - netdata_log_info("Deleting chart '%s' ('%s') from disk...", rrdset_id(st), rrdset_name(st)); - - if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || st->rrd_memory_mode == RRD_MEMORY_MODE_MAP) { - const char *cache_filename = rrdset_cache_filename(st); - if(cache_filename) { - netdata_log_info("Deleting chart header file '%s'.", cache_filename); - if (unlikely(unlink(cache_filename) == -1)) - netdata_log_error("Cannot delete chart header file '%s'", cache_filename); - } - else - netdata_log_error("Cannot find the cache filename of chart '%s'", rrdset_id(st)); - } - - rrddim_foreach_read(rd, st) { - const char *cache_filename = rrddim_cache_filename(rd); - if(!cache_filename) continue; - - netdata_log_info("Deleting dimension file '%s'.", cache_filename); - if(unlikely(unlink(cache_filename) == -1)) - netdata_log_error("Cannot delete dimension file '%s'", cache_filename); - } - rrddim_foreach_done(rd); - - if(st->db.cache_dir) - recursively_delete_dir(st->db.cache_dir, "left-over chart"); -} - -void rrdset_delete_obsolete_dimensions(RRDSET *st) { - RRDDIM *rd; - - netdata_log_info("Deleting dimensions of chart '%s' ('%s') from disk...", rrdset_id(st), rrdset_name(st)); - - rrddim_foreach_read(rd, st) { - if(rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) { - const char *cache_filename = rrddim_cache_filename(rd); - if(!cache_filename) continue; - netdata_log_info("Deleting dimension file '%s'.", cache_filename); - if(unlikely(unlink(cache_filename) == -1)) - netdata_log_error("Cannot delete dimension file '%s'", cache_filename); - } - } - rrddim_foreach_done(rd); -} - -// ---------------------------------------------------------------------------- -// RRDSET - create a chart - -RRDSET *rrdset_create_custom( - RRDHOST *host - , const char *type - , const char *id - , const char *name - , const char *family - , const char *context - , const char *title - , const char *units - , const char *plugin - , const char *module - , long priority - , int update_every - , RRDSET_TYPE chart_type - , RRD_MEMORY_MODE memory_mode - , long history_entries -) { - if (host != localhost) - host->child_last_chart_command = now_realtime_sec(); - - if(!type || !type[0]) - fatal("Cannot create rrd stats without a type: id '%s', name '%s', family '%s', context '%s', title '%s', units '%s', plugin '%s', module '%s'." - , (id && *id)?id:"<unset>" - , (name && *name)?name:"<unset>" - , (family && *family)?family:"<unset>" - , (context && *context)?context:"<unset>" - , (title && *title)?title:"<unset>" - , (units && *units)?units:"<unset>" - , (plugin && *plugin)?plugin:"<unset>" - , (module && *module)?module:"<unset>" - ); - - if(!id || !id[0]) - fatal("Cannot create rrd stats without an id: type '%s', name '%s', family '%s', context '%s', title '%s', units '%s', plugin '%s', module '%s'." - , type - , (name && *name)?name:"<unset>" - , (family && *family)?family:"<unset>" - , (context && *context)?context:"<unset>" - , (title && *title)?title:"<unset>" - , (units && *units)?units:"<unset>" - , (plugin && *plugin)?plugin:"<unset>" - , (module && *module)?module:"<unset>" - ); - - // ------------------------------------------------------------------------ - // check if it already exists - - char full_id[RRD_ID_LENGTH_MAX + 1]; - snprintfz(full_id, RRD_ID_LENGTH_MAX, "%s.%s", type, id); - - // ------------------------------------------------------------------------ - // allocate it - - netdata_log_debug(D_RRD_CALLS, "Creating RRD_STATS for '%s.%s'.", type, id); - - struct rrdset_constructor tmp = { - .host = host, - .type = type, - .id = id, - .name = name, - .family = family, - .context = context, - .title = title, - .units = units, - .plugin = plugin, - .module = module, - .priority = priority, - .update_every = update_every, - .chart_type = chart_type, - .memory_mode = memory_mode, - .history_entries = history_entries, - }; - - RRDSET *st = rrdset_index_add(host, full_id, &tmp); - return(st); -} - -// ---------------------------------------------------------------------------- -// RRDSET - data collection iteration control - -void rrdset_timed_next(RRDSET *st, struct timeval now, usec_t duration_since_last_update) { - #ifdef NETDATA_INTERNAL_CHECKS - char *discard_reason = NULL; - usec_t discarded = duration_since_last_update; - #endif - - if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_SYNC_CLOCK))) { - // the chart needs to be re-synced to current time - rrdset_flag_clear(st, RRDSET_FLAG_SYNC_CLOCK); - - // discard the duration supplied - duration_since_last_update = 0; - - #ifdef NETDATA_INTERNAL_CHECKS - if(!discard_reason) discard_reason = "SYNC CLOCK FLAG"; - #endif - } - - if(unlikely(!st->last_collected_time.tv_sec)) { - // the first entry - duration_since_last_update = st->update_every * USEC_PER_SEC; - #ifdef NETDATA_INTERNAL_CHECKS - if(!discard_reason) discard_reason = "FIRST DATA COLLECTION"; - #endif - } - else if(unlikely(!duration_since_last_update)) { - // no dt given by the plugin - duration_since_last_update = dt_usec(&now, &st->last_collected_time); - #ifdef NETDATA_INTERNAL_CHECKS - if(!discard_reason) discard_reason = "NO USEC GIVEN BY COLLECTOR"; - #endif - } - else { - // microseconds has the time since the last collection - susec_t since_last_usec = dt_usec_signed(&now, &st->last_collected_time); - - if(unlikely(since_last_usec < 0)) { - // oops! the database is in the future - #ifdef NETDATA_INTERNAL_CHECKS - netdata_log_info("RRD database for chart '%s' on host '%s' is %0.5" NETDATA_DOUBLE_MODIFIER - " secs in the future (counter #%u, update #%u). Adjusting it to current time." - , rrdset_id(st) - , rrdhost_hostname(st->rrdhost) - , (NETDATA_DOUBLE)-since_last_usec / USEC_PER_SEC - , st->counter - , st->counter_done - ); - #endif - - duration_since_last_update = 0; - - #ifdef NETDATA_INTERNAL_CHECKS - if(!discard_reason) discard_reason = "COLLECTION TIME IN FUTURE"; - #endif - } - else if(unlikely((usec_t)since_last_usec > (usec_t)(st->update_every * 5 * USEC_PER_SEC))) { - // oops! the database is too far behind - #ifdef NETDATA_INTERNAL_CHECKS - netdata_log_info("RRD database for chart '%s' on host '%s' is %0.5" NETDATA_DOUBLE_MODIFIER - " secs in the past (counter #%u, update #%u). Adjusting it to current time.", - rrdset_id(st), rrdhost_hostname(st->rrdhost), (NETDATA_DOUBLE)since_last_usec / USEC_PER_SEC, - st->counter, st->counter_done); - #endif - - duration_since_last_update = (usec_t)since_last_usec; - - #ifdef NETDATA_INTERNAL_CHECKS - if(!discard_reason) discard_reason = "COLLECTION TIME TOO FAR IN THE PAST"; - #endif - } - -#ifdef NETDATA_INTERNAL_CHECKS - if(since_last_usec > 0 && (susec_t) duration_since_last_update < since_last_usec) { - static __thread susec_t min_delta = USEC_PER_SEC * 3600, permanent_min_delta = 0; - static __thread time_t last_time_s = 0; - - // the first time initialize it so that it will make the check later - if(last_time_s == 0) last_time_s = now.tv_sec + 60; - - susec_t delta = since_last_usec - (susec_t) duration_since_last_update; - if(delta < min_delta) min_delta = delta; - - if(now.tv_sec >= last_time_s + 60) { - last_time_s = now.tv_sec; - - if(min_delta > permanent_min_delta) { - netdata_log_info("MINIMUM MICROSECONDS DELTA of thread %d increased from %"PRIi64" to %"PRIi64" (+%"PRIi64")", gettid(), permanent_min_delta, min_delta, min_delta - permanent_min_delta); - permanent_min_delta = min_delta; - } - - min_delta = USEC_PER_SEC * 3600; - } - } -#endif - } - - netdata_log_debug(D_RRD_CALLS, "rrdset_timed_next() for chart %s with duration since last update %"PRIu64" usec", rrdset_name(st), duration_since_last_update); - rrdset_debug(st, "NEXT: %"PRIu64" microseconds", duration_since_last_update); - - internal_error(discarded && discarded != duration_since_last_update, - "host '%s', chart '%s': discarded data collection time of %"PRIu64" usec, " - "replaced with %"PRIu64" usec, reason: '%s'" - , rrdhost_hostname(st->rrdhost) - , rrdset_id(st) - , discarded - , duration_since_last_update - , discard_reason?discard_reason:"UNDEFINED" - ); - - st->usec_since_last_update = duration_since_last_update; -} - -inline void rrdset_next_usec_unfiltered(RRDSET *st, usec_t duration_since_last_update) { - if(unlikely(!st->last_collected_time.tv_sec || !duration_since_last_update || (rrdset_flag_check(st, RRDSET_FLAG_SYNC_CLOCK)))) { - // call the full next_usec() function - rrdset_next_usec(st, duration_since_last_update); - return; - } - - st->usec_since_last_update = duration_since_last_update; -} - -inline void rrdset_next_usec(RRDSET *st, usec_t duration_since_last_update) { - struct timeval now; - - now_realtime_timeval(&now); - rrdset_timed_next(st, now, duration_since_last_update); -} - -// ---------------------------------------------------------------------------- -// RRDSET - process the collected values for all dimensions of a chart - -static inline usec_t rrdset_init_last_collected_time(RRDSET *st, struct timeval now) { - st->last_collected_time = now; - last_collected_time_align(st); - - usec_t last_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec; - - rrdset_debug(st, "initialized last collected time to %0.3" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE)last_collect_ut / USEC_PER_SEC); - - return last_collect_ut; -} - -static inline usec_t rrdset_update_last_collected_time(RRDSET *st) { - usec_t last_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec; - usec_t ut = last_collect_ut + st->usec_since_last_update; - st->last_collected_time.tv_sec = (time_t) (ut / USEC_PER_SEC); - st->last_collected_time.tv_usec = (suseconds_t) (ut % USEC_PER_SEC); - - rrdset_debug(st, "updated last collected time to %0.3" NETDATA_DOUBLE_MODIFIER, (NETDATA_DOUBLE)last_collect_ut / USEC_PER_SEC); - - return last_collect_ut; -} - -static inline void rrdset_init_last_updated_time(RRDSET *st) { - // copy the last collected time to last updated time - st->last_updated.tv_sec = st->last_collected_time.tv_sec; - st->last_updated.tv_usec = st->last_collected_time.tv_usec; - - if(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST)) - st->last_updated.tv_sec -= st->update_every; - - last_updated_time_align(st); -} - -static __thread size_t rrdset_done_statistics_points_stored_per_tier[RRD_STORAGE_TIERS]; - -static inline time_t tier_next_point_time_s(RRDDIM *rd, struct rrddim_tier *t, time_t now_s) { - time_t loop = (time_t)rd->rrdset->update_every * (time_t)t->tier_grouping; - return now_s + loop - ((now_s + loop) % loop); -} - -void store_metric_at_tier(RRDDIM *rd, size_t tier, struct rrddim_tier *t, STORAGE_POINT sp, usec_t now_ut __maybe_unused) { - if (unlikely(!t->next_point_end_time_s)) - t->next_point_end_time_s = tier_next_point_time_s(rd, t, sp.end_time_s); - - if(unlikely(sp.start_time_s >= t->next_point_end_time_s)) { - // flush the virtual point, it is done - - if (likely(!storage_point_is_unset(t->virtual_point))) { - - storage_engine_store_metric( - t->db_collection_handle, - t->next_point_end_time_s * USEC_PER_SEC, - t->virtual_point.sum, - t->virtual_point.min, - t->virtual_point.max, - t->virtual_point.count, - t->virtual_point.anomaly_count, - t->virtual_point.flags); - } - else { - storage_engine_store_metric( - t->db_collection_handle, - t->next_point_end_time_s * USEC_PER_SEC, - NAN, - NAN, - NAN, - 0, - 0, SN_FLAG_NONE); - } - - rrdset_done_statistics_points_stored_per_tier[tier]++; - t->virtual_point.count = 0; // make the point unset - t->next_point_end_time_s = tier_next_point_time_s(rd, t, sp.end_time_s); - } - - // merge the dates into our virtual point - if (unlikely(sp.start_time_s < t->virtual_point.start_time_s)) - t->virtual_point.start_time_s = sp.start_time_s; - - if (likely(sp.end_time_s > t->virtual_point.end_time_s)) - t->virtual_point.end_time_s = sp.end_time_s; - - // merge the values into our virtual point - if (likely(!storage_point_is_gap(sp))) { - // we aggregate only non NULLs into higher tiers - - if (likely(!storage_point_is_unset(t->virtual_point))) { - // merge the collected point to our virtual one - t->virtual_point.sum += sp.sum; - t->virtual_point.min = MIN(t->virtual_point.min, sp.min); - t->virtual_point.max = MAX(t->virtual_point.max, sp.max); - t->virtual_point.count += sp.count; - t->virtual_point.anomaly_count += sp.anomaly_count; - t->virtual_point.flags |= sp.flags; - } - else { - // reset our virtual point to this one - t->virtual_point = sp; - } - } -} -#ifdef NETDATA_LOG_COLLECTION_ERRORS -void rrddim_store_metric_with_trace(RRDDIM *rd, usec_t point_end_time_ut, NETDATA_DOUBLE n, SN_FLAGS flags, const char *function) { -#else // !NETDATA_LOG_COLLECTION_ERRORS -void rrddim_store_metric(RRDDIM *rd, usec_t point_end_time_ut, NETDATA_DOUBLE n, SN_FLAGS flags) { -#endif // !NETDATA_LOG_COLLECTION_ERRORS - - static __thread struct log_stack_entry lgs[] = { - [0] = ND_LOG_FIELD_STR(NDF_NIDL_DIMENSION, NULL), - [1] = ND_LOG_FIELD_END(), - }; - lgs[0].str = rd->id; - log_stack_push(lgs); - -#ifdef NETDATA_LOG_COLLECTION_ERRORS - rd->rrddim_store_metric_count++; - - if(likely(rd->rrddim_store_metric_count > 1)) { - usec_t expected = rd->rrddim_store_metric_last_ut + rd->update_every * USEC_PER_SEC; - - if(point_end_time_ut != rd->rrddim_store_metric_last_ut) { - internal_error(true, - "%s COLLECTION: 'host:%s/chart:%s/dim:%s' granularity %d, collection %zu, expected to store at tier 0 a value at %llu, but it gave %llu [%s%llu usec] (called from %s(), previously by %s())", - (point_end_time_ut < rd->rrddim_store_metric_last_ut) ? "**PAST**" : "GAP", - rrdhost_hostname(rd->rrdset->rrdhost), rrdset_id(rd->rrdset), rrddim_id(rd), - rd->update_every, - rd->rrddim_store_metric_count, - expected, point_end_time_ut, - (point_end_time_ut < rd->rrddim_store_metric_last_ut)?"by -" : "gap ", - expected - point_end_time_ut, - function, - rd->rrddim_store_metric_last_caller?rd->rrddim_store_metric_last_caller:"none"); - } - } - - rd->rrddim_store_metric_last_ut = point_end_time_ut; - rd->rrddim_store_metric_last_caller = function; -#endif // NETDATA_LOG_COLLECTION_ERRORS - - // store the metric on tier 0 - storage_engine_store_metric(rd->tiers[0].db_collection_handle, point_end_time_ut, - n, 0, 0, - 1, 0, flags); - - rrdset_done_statistics_points_stored_per_tier[0]++; - - time_t now_s = (time_t)(point_end_time_ut / USEC_PER_SEC); - - STORAGE_POINT sp = { - .start_time_s = now_s - rd->rrdset->update_every, - .end_time_s = now_s, - .min = n, - .max = n, - .sum = n, - .count = 1, - .anomaly_count = (flags & SN_FLAG_NOT_ANOMALOUS) ? 0 : 1, - .flags = flags - }; - - for(size_t tier = 1; tier < storage_tiers ;tier++) { - if(unlikely(!rd->tiers[tier].db_metric_handle)) continue; - - struct rrddim_tier *t = &rd->tiers[tier]; - - if(!rrddim_option_check(rd, RRDDIM_OPTION_BACKFILLED_HIGH_TIERS)) { - // we have not collected this tier before - // let's fill any gap that may exist - rrdr_fill_tier_gap_from_smaller_tiers(rd, tier, now_s); - rrddim_option_set(rd, RRDDIM_OPTION_BACKFILLED_HIGH_TIERS); - } - - store_metric_at_tier(rd, tier, t, sp, point_end_time_ut); - } - - rrdcontext_collected_rrddim(rd); - log_stack_pop(&lgs); -} - -void store_metric_collection_completed() { - global_statistics_rrdset_done_chart_collection_completed(rrdset_done_statistics_points_stored_per_tier); -} - -// caching of dimensions rrdset_done() and rrdset_done_interpolate() loop through -struct rda_item { - const DICTIONARY_ITEM *item; - RRDDIM *rd; -}; - -static __thread struct rda_item *thread_rda = NULL; -static __thread size_t thread_rda_entries = 0; - -struct rda_item *rrdset_thread_rda_get(size_t *dimensions) { - - if(unlikely(!thread_rda || (*dimensions) > thread_rda_entries)) { - size_t old_mem = thread_rda_entries * sizeof(struct rda_item); - freez(thread_rda); - thread_rda_entries = *dimensions; - size_t new_mem = thread_rda_entries * sizeof(struct rda_item); - thread_rda = mallocz(new_mem); - - __atomic_add_fetch(&netdata_buffers_statistics.rrdset_done_rda_size, new_mem - old_mem, __ATOMIC_RELAXED); - } - - *dimensions = thread_rda_entries; - return thread_rda; -} - -void rrdset_thread_rda_free(void) { - __atomic_sub_fetch(&netdata_buffers_statistics.rrdset_done_rda_size, thread_rda_entries * sizeof(struct rda_item), __ATOMIC_RELAXED); - - freez(thread_rda); - thread_rda = NULL; - thread_rda_entries = 0; -} - -static inline size_t rrdset_done_interpolate( - RRDSET_STREAM_BUFFER *rsb - , RRDSET *st - , struct rda_item *rda_base - , size_t rda_slots - , usec_t update_every_ut - , usec_t last_stored_ut - , usec_t next_store_ut - , usec_t last_collect_ut - , usec_t now_collect_ut - , char store_this_entry - , uint32_t has_reset_value -) { - RRDDIM *rd; - - size_t stored_entries = 0; // the number of entries we have stored in the db, during this call to rrdset_done() - - usec_t first_ut = last_stored_ut, last_ut = 0; - (void)first_ut; - - ssize_t iterations = (ssize_t)((now_collect_ut - last_stored_ut) / (update_every_ut)); - if((now_collect_ut % (update_every_ut)) == 0) iterations++; - - size_t counter = st->counter; - long current_entry = st->db.current_entry; - - SN_FLAGS storage_flags = SN_DEFAULT_FLAGS; - - if (has_reset_value) - storage_flags |= SN_FLAG_RESET; - - for( ; next_store_ut <= now_collect_ut ; last_collect_ut = next_store_ut, next_store_ut += update_every_ut, iterations-- ) { - - internal_error(iterations < 0, - "RRDSET: '%s': iterations calculation wrapped! " - "first_ut = %"PRIu64", last_stored_ut = %"PRIu64", next_store_ut = %"PRIu64", now_collect_ut = %"PRIu64"" - , rrdset_id(st) - , first_ut - , last_stored_ut - , next_store_ut - , now_collect_ut - ); - - rrdset_debug(st, "last_stored_ut = %0.3" NETDATA_DOUBLE_MODIFIER " (last updated time)", (NETDATA_DOUBLE)last_stored_ut/USEC_PER_SEC); - rrdset_debug(st, "next_store_ut = %0.3" NETDATA_DOUBLE_MODIFIER " (next interpolation point)", (NETDATA_DOUBLE)next_store_ut/USEC_PER_SEC); - - last_ut = next_store_ut; - - ml_chart_update_begin(st); - - struct rda_item *rda; - size_t dim_id; - for(dim_id = 0, rda = rda_base ; dim_id < rda_slots ; ++dim_id, ++rda) { - rd = rda->rd; - if(unlikely(!rd)) continue; - - NETDATA_DOUBLE new_value; - - switch(rd->algorithm) { - case RRD_ALGORITHM_INCREMENTAL: - new_value = (NETDATA_DOUBLE) - ( rd->collector.calculated_value - * (NETDATA_DOUBLE)(next_store_ut - last_collect_ut) - / (NETDATA_DOUBLE)(now_collect_ut - last_collect_ut) - ); - - rrdset_debug(st, "%s: CALC2 INC " NETDATA_DOUBLE_FORMAT " = " - NETDATA_DOUBLE_FORMAT - " * (%"PRIu64" - %"PRIu64")" - " / (%"PRIu64" - %"PRIu64"" - , rrddim_name(rd) - , new_value - , rd->collector.calculated_value - , next_store_ut, last_collect_ut - , now_collect_ut, last_collect_ut - ); - - rd->collector.calculated_value -= new_value; - new_value += rd->collector.last_calculated_value; - rd->collector.last_calculated_value = 0; - new_value /= (NETDATA_DOUBLE)st->update_every; - - if(unlikely(next_store_ut - last_stored_ut < update_every_ut)) { - - rrdset_debug(st, "%s: COLLECTION POINT IS SHORT " NETDATA_DOUBLE_FORMAT " - EXTRAPOLATING", - rrddim_name(rd) - , (NETDATA_DOUBLE)(next_store_ut - last_stored_ut) - ); - - new_value = new_value * (NETDATA_DOUBLE)(st->update_every * USEC_PER_SEC) / (NETDATA_DOUBLE)(next_store_ut - last_stored_ut); - } - break; - - case RRD_ALGORITHM_ABSOLUTE: - case RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL: - case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL: - default: - if(iterations == 1) { - // this is the last iteration - // do not interpolate - // just show the calculated value - - new_value = rd->collector.calculated_value; - } - else { - // we have missed an update - // interpolate in the middle values - - new_value = (NETDATA_DOUBLE) - ( ( (rd->collector.calculated_value - rd->collector.last_calculated_value) - * (NETDATA_DOUBLE)(next_store_ut - last_collect_ut) - / (NETDATA_DOUBLE)(now_collect_ut - last_collect_ut) - ) - + rd->collector.last_calculated_value - ); - - rrdset_debug(st, "%s: CALC2 DEF " NETDATA_DOUBLE_FORMAT " = (((" - "(" NETDATA_DOUBLE_FORMAT " - " NETDATA_DOUBLE_FORMAT ")" - " * %"PRIu64"" - " / %"PRIu64") + " NETDATA_DOUBLE_FORMAT, rrddim_name(rd) - , new_value - , rd->collector.calculated_value, rd->collector.last_calculated_value - , (next_store_ut - first_ut) - , (now_collect_ut - first_ut), rd->collector.last_calculated_value - ); - } - break; - } - - time_t current_time_s = (time_t) (next_store_ut / USEC_PER_SEC); - - if(unlikely(!store_this_entry)) { - (void) ml_dimension_is_anomalous(rd, current_time_s, 0, false); - - if(rsb->wb && rsb->v2) - rrddim_push_metrics_v2(rsb, rd, next_store_ut, NAN, SN_FLAG_NONE); - - rrddim_store_metric(rd, next_store_ut, NAN, SN_FLAG_NONE); - continue; - } - - if(likely(rrddim_check_updated(rd) && rd->collector.counter > 1 && iterations < gap_when_lost_iterations_above)) { - uint32_t dim_storage_flags = storage_flags; - - if (ml_dimension_is_anomalous(rd, current_time_s, new_value, true)) { - // clear anomaly bit: 0 -> is anomalous, 1 -> not anomalous - dim_storage_flags &= ~((storage_number)SN_FLAG_NOT_ANOMALOUS); - } - - if(rsb->wb && rsb->v2) - rrddim_push_metrics_v2(rsb, rd, next_store_ut, new_value, dim_storage_flags); - - rrddim_store_metric(rd, next_store_ut, new_value, dim_storage_flags); - rd->collector.last_stored_value = new_value; - } - else { - (void) ml_dimension_is_anomalous(rd, current_time_s, 0, false); - - rrdset_debug(st, "%s: STORE[%ld] = NON EXISTING ", rrddim_name(rd), current_entry); - - if(rsb->wb && rsb->v2) - rrddim_push_metrics_v2(rsb, rd, next_store_ut, NAN, SN_FLAG_NONE); - - rrddim_store_metric(rd, next_store_ut, NAN, SN_FLAG_NONE); - rd->collector.last_stored_value = NAN; - } - - stored_entries++; - } - - ml_chart_update_end(st); - - // reset the storage flags for the next point, if any; - storage_flags = SN_DEFAULT_FLAGS; - - st->counter = ++counter; - st->db.current_entry = current_entry = ((current_entry + 1) >= st->db.entries) ? 0 : current_entry + 1; - - st->last_updated.tv_sec = (time_t) (last_ut / USEC_PER_SEC); - st->last_updated.tv_usec = 0; - - last_stored_ut = next_store_ut; - } - -/* - st->counter = counter; - st->current_entry = current_entry; - - if(likely(last_ut)) { - st->last_updated.tv_sec = (time_t) (last_ut / USEC_PER_SEC); - st->last_updated.tv_usec = 0; - } -*/ - - return stored_entries; -} - -void rrdset_done(RRDSET *st) { - struct timeval now; - - now_realtime_timeval(&now); - rrdset_timed_done(st, now, /* pending_rrdset_next = */ st->counter_done != 0); -} - -void rrdset_timed_done(RRDSET *st, struct timeval now, bool pending_rrdset_next) { - if(unlikely(!service_running(SERVICE_COLLECTORS))) return; - - RRDSET_STREAM_BUFFER stream_buffer = { .wb = NULL, }; - if(unlikely(rrdhost_has_rrdpush_sender_enabled(st->rrdhost))) - stream_buffer = rrdset_push_metric_initialize(st, now.tv_sec); - - spinlock_lock(&st->data_collection_lock); - - if (pending_rrdset_next) - rrdset_timed_next(st, now, 0ULL); - - netdata_log_debug(D_RRD_CALLS, "rrdset_done() for chart '%s'", rrdset_name(st)); - - RRDDIM *rd; - - char - store_this_entry = 1, // boolean: 1 = store this entry, 0 = don't store this entry - first_entry = 0; // boolean: 1 = this is the first entry seen for this chart, 0 = all other entries - - usec_t - last_collect_ut = 0, // the timestamp in microseconds, of the last collected value - now_collect_ut = 0, // the timestamp in microseconds, of this collected value (this is NOW) - last_stored_ut = 0, // the timestamp in microseconds, of the last stored entry in the db - next_store_ut = 0, // the timestamp in microseconds, of the next entry to store in the db - update_every_ut = st->update_every * USEC_PER_SEC; // st->update_every in microseconds - - RRDSET_FLAGS rrdset_flags = rrdset_flag_check(st, ~0); - if(unlikely(rrdset_flags & RRDSET_FLAG_COLLECTION_FINISHED)) { - spinlock_unlock(&st->data_collection_lock); - return; - } - - if (unlikely(rrdset_flags & RRDSET_FLAG_OBSOLETE)) { - netdata_log_error("Chart '%s' has the OBSOLETE flag set, but it is collected.", rrdset_id(st)); - rrdset_isnot_obsolete___safe_from_collector_thread(st); - } - - // check if the chart has a long time to be updated - if(unlikely(st->usec_since_last_update > MAX(st->db.entries, 60) * update_every_ut)) { - nd_log_daemon(NDLP_DEBUG, "host '%s', chart '%s': took too long to be updated (counter #%u, update #%u, %0.3" NETDATA_DOUBLE_MODIFIER - " secs). Resetting it.", rrdhost_hostname(st->rrdhost), rrdset_id(st), st->counter, st->counter_done, - (NETDATA_DOUBLE)st->usec_since_last_update / USEC_PER_SEC); - rrdset_reset(st); - st->usec_since_last_update = update_every_ut; - store_this_entry = 0; - first_entry = 1; - } - - rrdset_debug(st, "microseconds since last update: %"PRIu64"", st->usec_since_last_update); - - // set last_collected_time - if(unlikely(!st->last_collected_time.tv_sec)) { - // it is the first entry - // set the last_collected_time to now - last_collect_ut = rrdset_init_last_collected_time(st, now) - update_every_ut; - - // the first entry should not be stored - store_this_entry = 0; - first_entry = 1; - } - else { - // it is not the first entry - // calculate the proper last_collected_time, using usec_since_last_update - last_collect_ut = rrdset_update_last_collected_time(st); - } - - // if this set has not been updated in the past - // we fake the last_update time to be = now - usec_since_last_update - if(unlikely(!st->last_updated.tv_sec)) { - // it has never been updated before - // set a fake last_updated, in the past using usec_since_last_update - rrdset_init_last_updated_time(st); - - // the first entry should not be stored - store_this_entry = 0; - first_entry = 1; - } - - // check if we will re-write the entire data set - if(unlikely(dt_usec(&st->last_collected_time, &st->last_updated) > st->db.entries * update_every_ut && - st->rrd_memory_mode != RRD_MEMORY_MODE_DBENGINE)) { - netdata_log_info( - "'%s': too old data (last updated at %"PRId64".%"PRId64", last collected at %"PRId64".%"PRId64"). " - "Resetting it. Will not store the next entry.", - rrdset_id(st), - (int64_t)st->last_updated.tv_sec, - (int64_t)st->last_updated.tv_usec, - (int64_t)st->last_collected_time.tv_sec, - (int64_t)st->last_collected_time.tv_usec); - rrdset_reset(st); - rrdset_init_last_updated_time(st); - - st->usec_since_last_update = update_every_ut; - - // the first entry should not be stored - store_this_entry = 0; - first_entry = 1; - } - - // these are the 3 variables that will help us in interpolation - // last_stored_ut = the last time we added a value to the storage - // now_collect_ut = the time the current value has been collected - // next_store_ut = the time of the next interpolation point - now_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec; - last_stored_ut = st->last_updated.tv_sec * USEC_PER_SEC + st->last_updated.tv_usec; - next_store_ut = (st->last_updated.tv_sec + st->update_every) * USEC_PER_SEC; - - if(unlikely(!st->counter_done)) { - // set a fake last_updated to jump to current time - rrdset_init_last_updated_time(st); - - last_stored_ut = st->last_updated.tv_sec * USEC_PER_SEC + st->last_updated.tv_usec; - next_store_ut = (st->last_updated.tv_sec + st->update_every) * USEC_PER_SEC; - - if(unlikely(rrdset_flags & RRDSET_FLAG_STORE_FIRST)) { - store_this_entry = 1; - last_collect_ut = next_store_ut - update_every_ut; - - rrdset_debug(st, "Fixed first entry."); - } - else { - store_this_entry = 0; - - rrdset_debug(st, "Will not store the next entry."); - } - } - - st->counter_done++; - - if(stream_buffer.wb && !stream_buffer.v2) - rrdset_push_metrics_v1(&stream_buffer, st); - - uint32_t has_reset_value = 0; - - size_t rda_slots = dictionary_entries(st->rrddim_root_index); - struct rda_item *rda_base = rrdset_thread_rda_get(&rda_slots); - - size_t dim_id; - size_t dimensions = 0; - struct rda_item *rda = rda_base; - total_number collected_total = 0; - total_number last_collected_total = 0; - rrddim_foreach_read(rd, st) { - if(rd_dfe.counter >= rda_slots) - break; - - rda = &rda_base[dimensions++]; - - if(rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) { - rda->item = NULL; - rda->rd = NULL; - continue; - } - - // store the dimension in the array - rda->item = dictionary_acquired_item_dup(st->rrddim_root_index, rd_dfe.item); - rda->rd = dictionary_acquired_item_value(rda->item); - - // calculate totals - if(likely(rrddim_check_updated(rd))) { - // if the new is smaller than the old (an overflow, or reset), set the old equal to the new - // to reset the calculation (it will give zero as the calculation for this second) - if(unlikely(rd->algorithm == RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL && rd->collector.last_collected_value > rd->collector.collected_value)) { - netdata_log_debug(D_RRD_STATS, "'%s' / '%s': RESET or OVERFLOW. Last collected value = " COLLECTED_NUMBER_FORMAT ", current = " COLLECTED_NUMBER_FORMAT - , rrdset_id(st) - , rrddim_name(rd) - , rd->collector.last_collected_value - , rd->collector.collected_value - ); - - if(!(rrddim_option_check(rd, RRDDIM_OPTION_DONT_DETECT_RESETS_OR_OVERFLOWS))) - has_reset_value = 1; - - rd->collector.last_collected_value = rd->collector.collected_value; - } - - last_collected_total += rd->collector.last_collected_value; - collected_total += rd->collector.collected_value; - - if(unlikely(rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE))) { - netdata_log_error("Dimension %s in chart '%s' has the OBSOLETE flag set, but it is collected.", rrddim_name(rd), rrdset_id(st)); - rrddim_isnot_obsolete___safe_from_collector_thread(st, rd); - } - } - } - rrddim_foreach_done(rd); - rda_slots = dimensions; - - rrdset_debug(st, "last_collect_ut = %0.3" NETDATA_DOUBLE_MODIFIER " (last collection time)", (NETDATA_DOUBLE)last_collect_ut/USEC_PER_SEC); - rrdset_debug(st, "now_collect_ut = %0.3" NETDATA_DOUBLE_MODIFIER " (current collection time)", (NETDATA_DOUBLE)now_collect_ut/USEC_PER_SEC); - rrdset_debug(st, "last_stored_ut = %0.3" NETDATA_DOUBLE_MODIFIER " (last updated time)", (NETDATA_DOUBLE)last_stored_ut/USEC_PER_SEC); - rrdset_debug(st, "next_store_ut = %0.3" NETDATA_DOUBLE_MODIFIER " (next interpolation point)", (NETDATA_DOUBLE)next_store_ut/USEC_PER_SEC); - - // process all dimensions to calculate their values - // based on the collected figures only - // at this stage we do not interpolate anything - for(dim_id = 0, rda = rda_base ; dim_id < rda_slots ; ++dim_id, ++rda) { - rd = rda->rd; - if(unlikely(!rd)) continue; - - if(unlikely(!rrddim_check_updated(rd))) { - rd->collector.calculated_value = 0; - continue; - } - - rrdset_debug(st, "%s: START " - " last_collected_value = " COLLECTED_NUMBER_FORMAT - " collected_value = " COLLECTED_NUMBER_FORMAT - " last_calculated_value = " NETDATA_DOUBLE_FORMAT - " calculated_value = " NETDATA_DOUBLE_FORMAT - , rrddim_name(rd) - , rd->collector.last_collected_value - , rd->collector.collected_value - , rd->collector.last_calculated_value - , rd->collector.calculated_value - ); - - switch(rd->algorithm) { - case RRD_ALGORITHM_ABSOLUTE: - rd->collector.calculated_value = (NETDATA_DOUBLE)rd->collector.collected_value - * (NETDATA_DOUBLE)rd->multiplier - / (NETDATA_DOUBLE)rd->divisor; - - rrdset_debug(st, "%s: CALC ABS/ABS-NO-IN " NETDATA_DOUBLE_FORMAT " = " - COLLECTED_NUMBER_FORMAT - " * " NETDATA_DOUBLE_FORMAT - " / " NETDATA_DOUBLE_FORMAT - , rrddim_name(rd) - , rd->collector.calculated_value - , rd->collector.collected_value - , (NETDATA_DOUBLE)rd->multiplier - , (NETDATA_DOUBLE)rd->divisor - ); - break; - - case RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL: - if(unlikely(!collected_total)) - rd->collector.calculated_value = 0; - else - // the percentage of the current value - // over the total of all dimensions - rd->collector.calculated_value = - (NETDATA_DOUBLE)100 - * (NETDATA_DOUBLE)rd->collector.collected_value - / (NETDATA_DOUBLE)collected_total; - - rrdset_debug(st, "%s: CALC PCENT-ROW " NETDATA_DOUBLE_FORMAT " = 100" - " * " COLLECTED_NUMBER_FORMAT - " / " COLLECTED_NUMBER_FORMAT - , rrddim_name(rd) - , rd->collector.calculated_value - , rd->collector.collected_value - , collected_total - ); - break; - - case RRD_ALGORITHM_INCREMENTAL: - if(unlikely(rd->collector.counter <= 1)) { - rd->collector.calculated_value = 0; - continue; - } - - // If the new is smaller than the old (an overflow, or reset), set the old equal to the new - // to reset the calculation (it will give zero as the calculation for this second). - // It is imperative to set the comparison to uint64_t since type collected_number is signed and - // produces wrong results as far as incremental counters are concerned. - if(unlikely((uint64_t)rd->collector.last_collected_value > (uint64_t)rd->collector.collected_value)) { - netdata_log_debug(D_RRD_STATS, "'%s' / '%s': RESET or OVERFLOW. Last collected value = " COLLECTED_NUMBER_FORMAT ", current = " COLLECTED_NUMBER_FORMAT - , rrdset_id(st) - , rrddim_name(rd) - , rd->collector.last_collected_value - , rd->collector.collected_value); - - if(!(rrddim_option_check(rd, RRDDIM_OPTION_DONT_DETECT_RESETS_OR_OVERFLOWS))) - has_reset_value = 1; - - uint64_t last = (uint64_t)rd->collector.last_collected_value; - uint64_t new = (uint64_t)rd->collector.collected_value; - uint64_t max = (uint64_t)rd->collector.collected_value_max; - uint64_t cap = 0; - - // Signed values are handled by exploiting two's complement which will produce positive deltas - if (max > 0x00000000FFFFFFFFULL) - cap = 0xFFFFFFFFFFFFFFFFULL; // handles signed and unsigned 64-bit counters - else - cap = 0x00000000FFFFFFFFULL; // handles signed and unsigned 32-bit counters - - uint64_t delta = cap - last + new; - uint64_t max_acceptable_rate = (cap / 100) * MAX_INCREMENTAL_PERCENT_RATE; - - // If the delta is less than the maximum acceptable rate and the previous value was near the cap - // then this is an overflow. There can be false positives such that a reset is detected as an - // overflow. - // TODO: remember recent history of rates and compare with current rate to reduce this chance. - if (delta < max_acceptable_rate) { - rd->collector.calculated_value += - (NETDATA_DOUBLE) delta - * (NETDATA_DOUBLE) rd->multiplier - / (NETDATA_DOUBLE) rd->divisor; - } else { - // This is a reset. Any overflow with a rate greater than MAX_INCREMENTAL_PERCENT_RATE will also - // be detected as a reset instead. - rd->collector.calculated_value += (NETDATA_DOUBLE)0; - } - } - else { - rd->collector.calculated_value += - (NETDATA_DOUBLE) (rd->collector.collected_value - rd->collector.last_collected_value) - * (NETDATA_DOUBLE) rd->multiplier - / (NETDATA_DOUBLE) rd->divisor; - } - - rrdset_debug(st, "%s: CALC INC PRE " NETDATA_DOUBLE_FORMAT " = (" - COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT - ")" - " * " NETDATA_DOUBLE_FORMAT - " / " NETDATA_DOUBLE_FORMAT - , rrddim_name(rd) - , rd->collector.calculated_value - , rd->collector.collected_value, rd->collector.last_collected_value - , (NETDATA_DOUBLE)rd->multiplier - , (NETDATA_DOUBLE)rd->divisor - ); - break; - - case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL: - if(unlikely(rd->collector.counter <= 1)) { - rd->collector.calculated_value = 0; - continue; - } - - // the percentage of the current increment - // over the increment of all dimensions together - if(unlikely(collected_total == last_collected_total)) - rd->collector.calculated_value = 0; - else - rd->collector.calculated_value = - (NETDATA_DOUBLE)100 - * (NETDATA_DOUBLE)(rd->collector.collected_value - rd->collector.last_collected_value) - / (NETDATA_DOUBLE)(collected_total - last_collected_total); - - rrdset_debug(st, "%s: CALC PCENT-DIFF " NETDATA_DOUBLE_FORMAT " = 100" - " * (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")" - " / (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")" - , rrddim_name(rd) - , rd->collector.calculated_value - , rd->collector.collected_value, rd->collector.last_collected_value - , collected_total, last_collected_total - ); - break; - - default: - // make the default zero, to make sure - // it gets noticed when we add new types - rd->collector.calculated_value = 0; - - rrdset_debug(st, "%s: CALC " NETDATA_DOUBLE_FORMAT " = 0" - , rrddim_name(rd) - , rd->collector.calculated_value - ); - break; - } - - rrdset_debug(st, "%s: PHASE2 " - " last_collected_value = " COLLECTED_NUMBER_FORMAT - " collected_value = " COLLECTED_NUMBER_FORMAT - " last_calculated_value = " NETDATA_DOUBLE_FORMAT - " calculated_value = " NETDATA_DOUBLE_FORMAT - , rrddim_name(rd) - , rd->collector.last_collected_value - , rd->collector.collected_value - , rd->collector.last_calculated_value - , rd->collector.calculated_value - ); - } - - // at this point we have all the calculated values ready - // it is now time to interpolate values on a second boundary - -// #ifdef NETDATA_INTERNAL_CHECKS -// if(unlikely(now_collect_ut < next_store_ut && st->counter_done > 1)) { -// // this is collected in the same interpolation point -// rrdset_debug(st, "THIS IS IN THE SAME INTERPOLATION POINT"); -// netdata_log_info("INTERNAL CHECK: host '%s', chart '%s' collection %zu is in the same interpolation point: short by %llu microseconds", st->rrdhost->hostname, rrdset_name(st), st->counter_done, next_store_ut - now_collect_ut); -// } -// #endif - - rrdset_done_interpolate( - &stream_buffer - , st - , rda_base - , rda_slots - , update_every_ut - , last_stored_ut - , next_store_ut - , last_collect_ut - , now_collect_ut - , store_this_entry - , has_reset_value - ); - - for(dim_id = 0, rda = rda_base ; dim_id < rda_slots ; ++dim_id, ++rda) { - rd = rda->rd; - if(unlikely(!rd)) continue; - - if(unlikely(!rrddim_check_updated(rd))) - continue; - - rrdset_debug(st, "%s: setting last_collected_value (old: " COLLECTED_NUMBER_FORMAT ") to last_collected_value (new: " COLLECTED_NUMBER_FORMAT ")", rrddim_name(rd), rd->collector.last_collected_value, rd->collector.collected_value); - - rd->collector.last_collected_value = rd->collector.collected_value; - - switch(rd->algorithm) { - case RRD_ALGORITHM_INCREMENTAL: - if(unlikely(!first_entry)) { - rrdset_debug(st, "%s: setting last_calculated_value (old: " NETDATA_DOUBLE_FORMAT ") to " - "last_calculated_value (new: " NETDATA_DOUBLE_FORMAT ")" - , rrddim_name(rd) - , rd->collector.last_calculated_value + rd->collector.calculated_value - , rd->collector.calculated_value); - - rd->collector.last_calculated_value += rd->collector.calculated_value; - } - else { - rrdset_debug(st, "THIS IS THE FIRST POINT"); - } - break; - - case RRD_ALGORITHM_ABSOLUTE: - case RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL: - case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL: - rrdset_debug(st, "%s: setting last_calculated_value (old: " NETDATA_DOUBLE_FORMAT ") to " - "last_calculated_value (new: " NETDATA_DOUBLE_FORMAT ")" - , rrddim_name(rd) - , rd->collector.last_calculated_value - , rd->collector.calculated_value); - - rd->collector.last_calculated_value = rd->collector.calculated_value; - break; - } - - rd->collector.calculated_value = 0; - rd->collector.collected_value = 0; - rrddim_clear_updated(rd); - - rrdset_debug(st, "%s: END " - " last_collected_value = " COLLECTED_NUMBER_FORMAT - " collected_value = " COLLECTED_NUMBER_FORMAT - " last_calculated_value = " NETDATA_DOUBLE_FORMAT - " calculated_value = " NETDATA_DOUBLE_FORMAT - , rrddim_name(rd) - , rd->collector.last_collected_value - , rd->collector.collected_value - , rd->collector.last_calculated_value - , rd->collector.calculated_value - ); - } - - spinlock_unlock(&st->data_collection_lock); - rrdset_push_metrics_finished(&stream_buffer, st); - - // ALL DONE ABOUT THE DATA UPDATE - // -------------------------------------------------------------------- - - if(unlikely(st->rrd_memory_mode == RRD_MEMORY_MODE_MAP)) { - // update the memory mapped files with the latest values - - rrdset_memory_file_update(st); - - for(dim_id = 0, rda = rda_base; dim_id < rda_slots ; ++dim_id, ++rda) { - rd = rda->rd; - if(unlikely(!rd)) continue; - rrddim_memory_file_update(rd); - } - } - - for(dim_id = 0, rda = rda_base; dim_id < rda_slots ; ++dim_id, ++rda) { - rd = rda->rd; - if(unlikely(!rd)) continue; - - dictionary_acquired_item_release(st->rrddim_root_index, rda->item); - rda->item = NULL; - rda->rd = NULL; - } - - rrdcontext_collected_rrdset(st); - - store_metric_collection_completed(); -} - -time_t rrdset_set_update_every_s(RRDSET *st, time_t update_every_s) { - if(unlikely(update_every_s == st->update_every)) - return st->update_every; - - internal_error(true, "RRDSET '%s' switching update every from %d to %d", - rrdset_id(st), (int)st->update_every, (int)update_every_s); - - time_t prev_update_every_s = (time_t) st->update_every; - st->update_every = (int) update_every_s; - - // switch update every to the storage engine - RRDDIM *rd; - rrddim_foreach_read(rd, st) { - for (size_t tier = 0; tier < storage_tiers; tier++) { - if (rd->tiers[tier].db_collection_handle) - storage_engine_store_change_collection_frequency( - rd->tiers[tier].db_collection_handle, - (int)(st->rrdhost->db[tier].tier_grouping * st->update_every)); - } - } - rrddim_foreach_done(rd); - - return prev_update_every_s; -} - -// ---------------------------------------------------------------------------- -// compatibility layer for RRDSET files v019 - -#define RRDSET_MAGIC_V019 "NETDATA RRD SET FILE V019" -#define RRD_ID_LENGTH_MAX_V019 200 - -struct avl_element_v019 { - void *avl_link[2]; - signed char avl_balance; -}; -struct avl_tree_type_v019 { - void *root; - int (*compar)(void *a, void *b); -}; -struct avl_tree_lock_v019 { - struct avl_tree_type_v019 avl_tree; - pthread_rwlock_t rwlock; -}; -struct rrdset_map_save_v019 { - struct avl_element_v019 avl; // ignored - struct avl_element_v019 avlname; // ignored - char id[RRD_ID_LENGTH_MAX_V019 + 1]; // check to reset all - update on load - void *name; // ignored - void *unused_ptr; // ignored - void *type; // ignored - void *family; // ignored - void *title; // ignored - void *units; // ignored - void *context; // ignored - uint32_t hash_context; // ignored - uint32_t chart_type; // ignored - int update_every; // check to reset all - update on load - long entries; // check to reset all - update on load - long current_entry; // NEEDS TO BE UPDATED - FIXED ON LOAD - uint32_t flags; // ignored - void *exporting_flags; // ignored - int gap_when_lost_iterations_above; // ignored - long priority; // ignored - uint32_t rrd_memory_mode; // ignored - void *cache_dir; // ignored - char cache_filename[FILENAME_MAX+1]; // ignored - update on load - pthread_rwlock_t rrdset_rwlock; // ignored - size_t counter; // NEEDS TO BE UPDATED - maintained on load - size_t counter_done; // ignored - union { // - time_t last_accessed_time_s; // ignored - time_t last_entry_s; // ignored - }; // - time_t upstream_resync_time; // ignored - void *plugin_name; // ignored - void *module_name; // ignored - void *chart_uuid; // ignored - void *state; // ignored - size_t unused[3]; // ignored - size_t rrddim_page_alignment; // ignored - uint32_t hash; // ignored - uint32_t hash_name; // ignored - usec_t usec_since_last_update; // NEEDS TO BE UPDATED - maintained on load - struct timeval last_updated; // NEEDS TO BE UPDATED - check to reset all - fixed on load - struct timeval last_collected_time; // ignored - long long collected_total; // ignored - long long last_collected_total; // ignored - void *rrdfamily; // ignored - void *rrdhost; // ignored - void *next; // ignored - long double green; // ignored - long double red; // ignored - struct avl_tree_lock_v019 rrdvar_root_index; // ignored - void *variables; // ignored - void *alarms; // ignored - unsigned long memsize; // check to reset all - update on load - char magic[sizeof(RRDSET_MAGIC_V019) + 1]; // check to reset all - update on load - struct avl_tree_lock_v019 dimensions_index; // ignored - void *dimensions; // ignored -}; - -void rrdset_memory_file_update(RRDSET *st) { - if(!st->db.st_on_file) return; - struct rrdset_map_save_v019 *st_on_file = st->db.st_on_file; - - st_on_file->current_entry = st->db.current_entry; - st_on_file->counter = st->counter; - st_on_file->usec_since_last_update = st->usec_since_last_update; - st_on_file->last_updated.tv_sec = st->last_updated.tv_sec; - st_on_file->last_updated.tv_usec = st->last_updated.tv_usec; -} - -const char *rrdset_cache_filename(RRDSET *st) { - if(!st->db.st_on_file) return NULL; - struct rrdset_map_save_v019 *st_on_file = st->db.st_on_file; - return st_on_file->cache_filename; -} - -const char *rrdset_cache_dir(RRDSET *st) { - if(!st->db.cache_dir) - st->db.cache_dir = rrdhost_cache_dir_for_rrdset_alloc(st->rrdhost, rrdset_id(st)); - - return st->db.cache_dir; -} - -void rrdset_memory_file_free(RRDSET *st) { - if(!st->db.st_on_file) return; - - // needed for memory mode map, to save the latest state - rrdset_memory_file_update(st); - - struct rrdset_map_save_v019 *st_on_file = st->db.st_on_file; - __atomic_sub_fetch(&rrddim_db_memory_size, st_on_file->memsize, __ATOMIC_RELAXED); - netdata_munmap(st_on_file, st_on_file->memsize); - - // remove the pointers from the RRDDIM - st->db.st_on_file = NULL; -} - -void rrdset_memory_file_save(RRDSET *st) { - if(!st->db.st_on_file) return; - - rrdset_memory_file_update(st); - - struct rrdset_map_save_v019 *st_on_file = st->db.st_on_file; - if(st_on_file->rrd_memory_mode != RRD_MEMORY_MODE_SAVE) return; - - memory_file_save(st_on_file->cache_filename, st->db.st_on_file, st_on_file->memsize); -} - -bool rrdset_memory_load_or_create_map_save(RRDSET *st, RRD_MEMORY_MODE memory_mode) { - if(memory_mode != RRD_MEMORY_MODE_SAVE && memory_mode != RRD_MEMORY_MODE_MAP) - return false; - - char fullfilename[FILENAME_MAX + 1]; - snprintfz(fullfilename, FILENAME_MAX, "%s/main.db", rrdset_cache_dir(st)); - - unsigned long size = sizeof(struct rrdset_map_save_v019); - struct rrdset_map_save_v019 *st_on_file = (struct rrdset_map_save_v019 *)netdata_mmap( - fullfilename, size, ((memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE), 0, false, NULL); - - if(!st_on_file) return false; - - time_t now_s = now_realtime_sec(); - - st_on_file->magic[sizeof(RRDSET_MAGIC_V019)] = '\0'; - if(strcmp(st_on_file->magic, RRDSET_MAGIC_V019) != 0) { - netdata_log_info("Initializing file '%s'.", fullfilename); - memset(st_on_file, 0, size); - } - else if(strncmp(st_on_file->id, rrdset_id(st), RRD_ID_LENGTH_MAX_V019) != 0) { - netdata_log_error("File '%s' contents are not for chart '%s'. Clearing it.", fullfilename, rrdset_id(st)); - memset(st_on_file, 0, size); - } - else if(st_on_file->memsize != size || st_on_file->entries != st->db.entries) { - netdata_log_error("File '%s' does not have the desired size. Clearing it.", fullfilename); - memset(st_on_file, 0, size); - } - else if(st_on_file->update_every != st->update_every) { - netdata_log_error("File '%s' does not have the desired granularity. Clearing it.", fullfilename); - memset(st_on_file, 0, size); - } - else if((now_s - st_on_file->last_updated.tv_sec) > (long)st->update_every * (long)st->db.entries) { - netdata_log_info("File '%s' is too old. Clearing it.", fullfilename); - memset(st_on_file, 0, size); - } - else if(st_on_file->last_updated.tv_sec > now_s + st->update_every) { - netdata_log_error("File '%s' refers to the future by %zd secs. Resetting it to now.", fullfilename, (ssize_t)(st_on_file->last_updated.tv_sec - now_s)); - st_on_file->last_updated.tv_sec = now_s; - } - - if(st_on_file->current_entry >= st_on_file->entries) - st_on_file->current_entry = 0; - - // make sure the database is aligned - bool align_last_updated = false; - if(st_on_file->last_updated.tv_sec) { - st_on_file->update_every = st->update_every; - align_last_updated = true; - } - - // copy the useful values to st - st->db.current_entry = st_on_file->current_entry; - st->counter = st_on_file->counter; - st->usec_since_last_update = st_on_file->usec_since_last_update; - st->last_updated.tv_sec = st_on_file->last_updated.tv_sec; - st->last_updated.tv_usec = st_on_file->last_updated.tv_usec; - - // link it to st - st->db.st_on_file = st_on_file; - - // clear everything - memset(st_on_file, 0, size); - - // set the values we need - strncpyz(st_on_file->id, rrdset_id(st), RRD_ID_LENGTH_MAX_V019); - strcpy(st_on_file->cache_filename, fullfilename); - strcpy(st_on_file->magic, RRDSET_MAGIC_V019); - st_on_file->memsize = size; - st_on_file->entries = st->db.entries; - st_on_file->update_every = st->update_every; - st_on_file->rrd_memory_mode = memory_mode; - - if(align_last_updated) - last_updated_time_align(st); - - // copy the useful values back to st_on_file - rrdset_memory_file_update(st); - - __atomic_add_fetch(&rrddim_db_memory_size, st_on_file->memsize, __ATOMIC_RELAXED); - return true; -} |