// SPDX-License-Identifier: GPL-3.0-or-later #define NETDATA_RRD_INTERNALS #include "rrd.h" #include #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:"" , (name && *name)?name:"" , (family && *family)?family:"" , (context && *context)?context:"" , (title && *title)?title:"" , (units && *units)?units:"" , (plugin && *plugin)?plugin:"" , (module && *module)?module:"" ); 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:"" , (family && *family)?family:"" , (context && *context)?context:"" , (title && *title)?title:"" , (units && *units)?units:"" , (plugin && *plugin)?plugin:"" , (module && *module)?module:"" ); // ------------------------------------------------------------------------ // 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; }