diff options
Diffstat (limited to 'database/rrddim.c')
| -rw-r--r-- | database/rrddim.c | 768 |
1 files changed, 0 insertions, 768 deletions
diff --git a/database/rrddim.c b/database/rrddim.c deleted file mode 100644 index 46226a54..00000000 --- a/database/rrddim.c +++ /dev/null @@ -1,768 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#define NETDATA_RRD_INTERNALS -#include "rrd.h" -#include "storage_engine.h" - -void rrddim_metadata_updated(RRDDIM *rd) { - rrdcontext_updated_rrddim(rd); - rrdset_metadata_updated(rd->rrdset); -} - -// ---------------------------------------------------------------------------- -// RRDDIM index - -struct rrddim_constructor { - RRDSET *st; - const char *id; - const char *name; - collected_number multiplier; - collected_number divisor; - RRD_ALGORITHM algorithm; - RRD_MEMORY_MODE memory_mode; - - enum { - RRDDIM_REACT_NONE = 0, - RRDDIM_REACT_NEW = (1 << 0), - RRDDIM_REACT_UPDATED = (1 << 2), - } react_action; - -}; - -// isolated call to appear -// separate in statistics -static void *rrddim_alloc_db(size_t entries) { - return callocz(entries, sizeof(storage_number)); -} - -static void rrddim_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrddim, void *constructor_data) { - struct rrddim_constructor *ctr = constructor_data; - RRDDIM *rd = rrddim; - RRDSET *st = ctr->st; - RRDHOST *host = st->rrdhost; - - rd->flags = RRDDIM_FLAG_NONE; - - rd->id = string_strdupz(ctr->id); - rd->name = (ctr->name && *ctr->name)?rrd_string_strdupz(ctr->name):string_dup(rd->id); - - rd->algorithm = ctr->algorithm; - rd->multiplier = ctr->multiplier; - rd->divisor = ctr->divisor; - if(!rd->divisor) rd->divisor = 1; - - rd->rrdset = st; - - rd->rrdpush.sender.dim_slot = __atomic_add_fetch(&st->rrdpush.sender.dim_last_slot_used, 1, __ATOMIC_RELAXED); - - if(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST)) - rd->collector.counter = 1; - - if(ctr->memory_mode == RRD_MEMORY_MODE_MAP || ctr->memory_mode == RRD_MEMORY_MODE_SAVE) { - if(!rrddim_memory_load_or_create_map_save(st, rd, ctr->memory_mode)) { - netdata_log_info("Failed to use memory mode %s for chart '%s', dimension '%s', falling back to ram", (ctr->memory_mode == RRD_MEMORY_MODE_MAP)?"map":"save", rrdset_name(st), rrddim_name(rd)); - ctr->memory_mode = RRD_MEMORY_MODE_RAM; - } - } - - if(ctr->memory_mode == RRD_MEMORY_MODE_RAM) { - size_t entries = st->db.entries; - if(!entries) entries = 5; - - rd->db.data = netdata_mmap(NULL, entries * sizeof(storage_number), MAP_PRIVATE, 1, false, NULL); - if(!rd->db.data) { - netdata_log_info("Failed to use memory mode ram for chart '%s', dimension '%s', falling back to alloc", rrdset_name(st), rrddim_name(rd)); - ctr->memory_mode = RRD_MEMORY_MODE_ALLOC; - } - else { - rd->db.memsize = entries * sizeof(storage_number); - __atomic_add_fetch(&rrddim_db_memory_size, rd->db.memsize, __ATOMIC_RELAXED); - } - } - - if(ctr->memory_mode == RRD_MEMORY_MODE_ALLOC || ctr->memory_mode == RRD_MEMORY_MODE_NONE) { - size_t entries = st->db.entries; - if(entries < 5) entries = 5; - - rd->db.data = rrddim_alloc_db(entries); - rd->db.memsize = entries * sizeof(storage_number); - __atomic_add_fetch(&rrddim_db_memory_size, rd->db.memsize, __ATOMIC_RELAXED); - } - - rd->rrd_memory_mode = ctr->memory_mode; - - if (unlikely(rrdcontext_find_dimension_uuid(st, rrddim_id(rd), &(rd->metric_uuid)))) - uuid_generate(rd->metric_uuid); - - // initialize the db tiers - { - size_t initialized = 0; - for(size_t tier = 0; tier < storage_tiers ; tier++) { - STORAGE_ENGINE *eng = host->db[tier].eng; - rd->tiers[tier].backend = eng->backend; - rd->tiers[tier].tier_grouping = host->db[tier].tier_grouping; - rd->tiers[tier].db_metric_handle = eng->api.metric_get_or_create(rd, host->db[tier].instance); - storage_point_unset(rd->tiers[tier].virtual_point); - initialized++; - - // internal_error(true, "TIER GROUPING of chart '%s', dimension '%s' for tier %d is set to %d", rd->rrdset->name, rd->name, tier, rd->tiers[tier]->tier_grouping); - } - - if(!initialized) - netdata_log_error("Failed to initialize all db tiers for chart '%s', dimension '%s", rrdset_name(st), rrddim_name(rd)); - - if(!rd->tiers[0].db_metric_handle) - netdata_log_error("Failed to initialize the first db tier for chart '%s', dimension '%s", rrdset_name(st), rrddim_name(rd)); - } - - // initialize data collection for all tiers - { - size_t initialized = 0; - for (size_t tier = 0; tier < storage_tiers; tier++) { - if (rd->tiers[tier].db_metric_handle) { - rd->tiers[tier].db_collection_handle = - storage_metric_store_init(rd->tiers[tier].backend, rd->tiers[tier].db_metric_handle, st->rrdhost->db[tier].tier_grouping * st->update_every, rd->rrdset->storage_metrics_groups[tier]); - initialized++; - } - } - - if(!initialized) - netdata_log_error("Failed to initialize data collection for all db tiers for chart '%s', dimension '%s", rrdset_name(st), rrddim_name(rd)); - } - - if(rrdset_number_of_dimensions(st) != 0) { - RRDDIM *td; - dfe_start_write(st->rrddim_root_index, td) { - if(td) break; - } - dfe_done(td); - - if(td && (td->algorithm != rd->algorithm || ABS(td->multiplier) != ABS(rd->multiplier) || ABS(td->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(td->algorithm), - rd->multiplier, td->multiplier, - rd->divisor, td->divisor - ); -#endif - rrdset_flag_set(st, RRDSET_FLAG_HETEROGENEOUS); - } - } - } - - rrddim_flag_set(rd, RRDDIM_FLAG_PENDING_HEALTH_INITIALIZATION); - rrdset_flag_set(rd->rrdset, RRDSET_FLAG_PENDING_HEALTH_INITIALIZATION); - rrdhost_flag_set(rd->rrdset->rrdhost, RRDHOST_FLAG_PENDING_HEALTH_INITIALIZATION); - - // let the chart resync - rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK); - - ml_dimension_new(rd); - - ctr->react_action = RRDDIM_REACT_NEW; - - internal_error(false, "RRDDIM: inserted dimension '%s' of chart '%s' of host '%s'", - rrddim_name(rd), rrdset_name(st), rrdhost_hostname(st->rrdhost)); - -} - -bool rrddim_finalize_collection_and_check_retention(RRDDIM *rd) { - size_t tiers_available = 0, tiers_said_no_retention = 0; - - for(size_t tier = 0; tier < storage_tiers ;tier++) { - if(!rd->tiers[tier].db_collection_handle) - continue; - - tiers_available++; - - if(storage_engine_store_finalize(rd->tiers[tier].db_collection_handle)) - tiers_said_no_retention++; - - rd->tiers[tier].db_collection_handle = NULL; - } - - // return true if the dimension has retention in the db - return (!tiers_said_no_retention || tiers_available > tiers_said_no_retention); -} - -static void rrddim_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrddim, void *rrdset) { - RRDDIM *rd = rrddim; - RRDSET *st = rrdset; - RRDHOST *host = st->rrdhost; - - internal_error(false, "RRDDIM: deleting dimension '%s' of chart '%s' of host '%s'", - rrddim_name(rd), rrdset_name(st), rrdhost_hostname(host)); - - rrdcontext_removed_rrddim(rd); - - ml_dimension_delete(rd); - - netdata_log_debug(D_RRD_CALLS, "rrddim_free() %s.%s", rrdset_name(st), rrddim_name(rd)); - - if (!rrddim_finalize_collection_and_check_retention(rd) && rd->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { - /* This metric has no data and no references */ - metaqueue_delete_dimension_uuid(&rd->metric_uuid); - } - - rrddimvar_delete_all(rd); - - // free(rd->annotations); - //#ifdef ENABLE_ACLK - // if (!netdata_exit) - // aclk_send_dimension_update(rd); - //#endif - - // this will free MEMORY_MODE_SAVE and MEMORY_MODE_MAP structures - rrddim_memory_file_free(rd); - - for(size_t tier = 0; tier < storage_tiers ;tier++) { - if(!rd->tiers[tier].db_metric_handle) continue; - - STORAGE_ENGINE* eng = host->db[tier].eng; - eng->api.metric_release(rd->tiers[tier].db_metric_handle); - rd->tiers[tier].db_metric_handle = NULL; - } - - if(rd->db.data) { - __atomic_sub_fetch(&rrddim_db_memory_size, rd->db.memsize, __ATOMIC_RELAXED); - - if(rd->rrd_memory_mode == RRD_MEMORY_MODE_RAM) - netdata_munmap(rd->db.data, rd->db.memsize); - else - freez(rd->db.data); - } - - string_freez(rd->id); - string_freez(rd->name); -} - -static bool rrddim_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrddim, void *new_rrddim, void *constructor_data) { - (void)new_rrddim; // it is NULL - - struct rrddim_constructor *ctr = constructor_data; - RRDDIM *rd = rrddim; - RRDSET *st = ctr->st; - - ctr->react_action = RRDDIM_REACT_NONE; - - int rc = rrddim_reset_name(st, rd, ctr->name); - rc += rrddim_set_algorithm(st, rd, ctr->algorithm); - rc += rrddim_set_multiplier(st, rd, ctr->multiplier); - rc += rrddim_set_divisor(st, rd, ctr->divisor); - - for(size_t tier = 0; tier < storage_tiers ;tier++) { - if (!rd->tiers[tier].db_collection_handle) - rd->tiers[tier].db_collection_handle = - storage_metric_store_init(rd->tiers[tier].backend, rd->tiers[tier].db_metric_handle, st->rrdhost->db[tier].tier_grouping * st->update_every, rd->rrdset->storage_metrics_groups[tier]); - } - - if(rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) { - rrddim_flag_clear(rd, RRDDIM_FLAG_ARCHIVED); - - rrddim_flag_set(rd, RRDDIM_FLAG_PENDING_HEALTH_INITIALIZATION); - rrdset_flag_set(rd->rrdset, RRDSET_FLAG_PENDING_HEALTH_INITIALIZATION); - rrdhost_flag_set(rd->rrdset->rrdhost, RRDHOST_FLAG_PENDING_HEALTH_INITIALIZATION); - } - - if(unlikely(rc)) - ctr->react_action = RRDDIM_REACT_UPDATED; - - return ctr->react_action == RRDDIM_REACT_UPDATED; -} - -static void rrddim_react_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrddim, void *constructor_data) { - struct rrddim_constructor *ctr = constructor_data; - RRDDIM *rd = rrddim; - RRDSET *st = ctr->st; - - if(ctr->react_action & (RRDDIM_REACT_UPDATED | RRDDIM_REACT_NEW)) { - rrddim_flag_set(rd, RRDDIM_FLAG_METADATA_UPDATE); - rrdhost_flag_set(rd->rrdset->rrdhost, RRDHOST_FLAG_METADATA_UPDATE); - } - - if(ctr->react_action == RRDDIM_REACT_UPDATED) { - // the chart needs to be updated to the parent - rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK); - } - - rrddim_metadata_updated(rd); -} - -size_t rrddim_size(void) { - return sizeof(RRDDIM) + storage_tiers * sizeof(struct rrddim_tier); -} - -void rrddim_index_init(RRDSET *st) { - if(!st->rrddim_root_index) { - st->rrddim_root_index = dictionary_create_advanced(DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_FIXED_SIZE, - &dictionary_stats_category_rrdset_rrddim, rrddim_size()); - - dictionary_register_insert_callback(st->rrddim_root_index, rrddim_insert_callback, NULL); - dictionary_register_conflict_callback(st->rrddim_root_index, rrddim_conflict_callback, NULL); - dictionary_register_delete_callback(st->rrddim_root_index, rrddim_delete_callback, st); - dictionary_register_react_callback(st->rrddim_root_index, rrddim_react_callback, st); - } -} - -void rrddim_index_destroy(RRDSET *st) { - dictionary_destroy(st->rrddim_root_index); - st->rrddim_root_index = NULL; -} - -static inline RRDDIM *rrddim_index_find(RRDSET *st, const char *id) { - return dictionary_get(st->rrddim_root_index, id); -} - -// ---------------------------------------------------------------------------- -// RRDDIM - find a dimension - -inline RRDDIM *rrddim_find(RRDSET *st, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrddim_find() for chart %s, dimension %s", rrdset_name(st), id); - - return rrddim_index_find(st, id); -} - -inline RRDDIM_ACQUIRED *rrddim_find_and_acquire(RRDSET *st, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrddim_find_and_acquire() for chart %s, dimension %s", rrdset_name(st), id); - - return (RRDDIM_ACQUIRED *)dictionary_get_and_acquire_item(st->rrddim_root_index, id); -} - -RRDDIM *rrddim_acquired_to_rrddim(RRDDIM_ACQUIRED *rda) { - if(unlikely(!rda)) - return NULL; - - return (RRDDIM *) dictionary_acquired_item_value((const DICTIONARY_ITEM *)rda); -} - -void rrddim_acquired_release(RRDDIM_ACQUIRED *rda) { - if(unlikely(!rda)) - return; - - RRDDIM *rd = rrddim_acquired_to_rrddim(rda); - dictionary_acquired_item_release(rd->rrdset->rrddim_root_index, (const DICTIONARY_ITEM *)rda); -} - -// This will not return dimensions that are archived -RRDDIM *rrddim_find_active(RRDSET *st, const char *id) { - RRDDIM *rd = rrddim_find(st, id); - - if (unlikely(rd && rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED))) - return NULL; - - return rd; -} - -// ---------------------------------------------------------------------------- -// RRDDIM rename a dimension - -inline int rrddim_reset_name(RRDSET *st, RRDDIM *rd, const char *name) { - if(unlikely(!name || !*name || !strcmp(rrddim_name(rd), name))) - return 0; - - netdata_log_debug(D_RRD_CALLS, "rrddim_reset_name() from %s.%s to %s.%s", rrdset_name(st), rrddim_name(rd), rrdset_name(st), name); - - STRING *old = rd->name; - rd->name = rrd_string_strdupz(name); - string_freez(old); - - rrddimvar_rename_all(rd); - - rrddim_metadata_updated(rd); - - return 1; -} - -inline int rrddim_set_algorithm(RRDSET *st, RRDDIM *rd, RRD_ALGORITHM algorithm) { - if(unlikely(rd->algorithm == algorithm)) - return 0; - - netdata_log_debug(D_RRD_CALLS, "Updating algorithm of dimension '%s/%s' from %s to %s", rrdset_id(st), rrddim_name(rd), rrd_algorithm_name(rd->algorithm), rrd_algorithm_name(algorithm)); - rd->algorithm = algorithm; - rrddim_metadata_updated(rd); - rrdset_flag_set(st, RRDSET_FLAG_HOMOGENEOUS_CHECK); - rrdcontext_updated_rrddim_algorithm(rd); - return 1; -} - -inline int rrddim_set_multiplier(RRDSET *st, RRDDIM *rd, int32_t multiplier) { - if(unlikely(rd->multiplier == multiplier)) - return 0; - - netdata_log_debug(D_RRD_CALLS, "Updating multiplier of dimension '%s/%s' from %d to %d", - rrdset_id(st), rrddim_name(rd), rd->multiplier, multiplier); - rd->multiplier = multiplier; - rrddim_metadata_updated(rd); - rrdset_flag_set(st, RRDSET_FLAG_HOMOGENEOUS_CHECK); - rrdcontext_updated_rrddim_multiplier(rd); - return 1; -} - -inline int rrddim_set_divisor(RRDSET *st, RRDDIM *rd, int32_t divisor) { - if(unlikely(rd->divisor == divisor)) - return 0; - - netdata_log_debug(D_RRD_CALLS, "Updating divisor of dimension '%s/%s' from %d to %d", - rrdset_id(st), rrddim_name(rd), rd->divisor, divisor); - rd->divisor = divisor; - rrddim_metadata_updated(rd); - rrdset_flag_set(st, RRDSET_FLAG_HOMOGENEOUS_CHECK); - rrdcontext_updated_rrddim_divisor(rd); - return 1; -} - -// ---------------------------------------------------------------------------- - -time_t rrddim_last_entry_s_of_tier(RRDDIM *rd, size_t tier) { - if(unlikely(tier > storage_tiers || !rd->tiers[tier].db_metric_handle)) - return 0; - - return storage_engine_latest_time_s(rd->tiers[tier].backend, rd->tiers[tier].db_metric_handle); -} - -// get the timestamp of the last entry in the round-robin database -time_t rrddim_last_entry_s(RRDDIM *rd) { - time_t latest_time_s = rrddim_last_entry_s_of_tier(rd, 0); - - for(size_t tier = 1; tier < storage_tiers ;tier++) { - if(unlikely(!rd->tiers[tier].db_metric_handle)) continue; - - time_t t = rrddim_last_entry_s_of_tier(rd, tier); - if(t > latest_time_s) - latest_time_s = t; - } - - return latest_time_s; -} - -time_t rrddim_first_entry_s_of_tier(RRDDIM *rd, size_t tier) { - if(unlikely(tier > storage_tiers || !rd->tiers[tier].db_metric_handle)) - return 0; - - return storage_engine_oldest_time_s(rd->tiers[tier].backend, rd->tiers[tier].db_metric_handle); -} - -time_t rrddim_first_entry_s(RRDDIM *rd) { - time_t oldest_time_s = 0; - - for(size_t tier = 0; tier < storage_tiers ;tier++) { - time_t t = rrddim_first_entry_s_of_tier(rd, tier); - if(t != 0 && (oldest_time_s == 0 || t < oldest_time_s)) - oldest_time_s = t; - } - - return oldest_time_s; -} - -RRDDIM *rrddim_add_custom(RRDSET *st - , const char *id - , const char *name - , collected_number multiplier - , collected_number divisor - , RRD_ALGORITHM algorithm - , RRD_MEMORY_MODE memory_mode - ) { - struct rrddim_constructor tmp = { - .st = st, - .id = id, - .name = name, - .multiplier = multiplier, - .divisor = divisor, - .algorithm = algorithm, - .memory_mode = memory_mode, - }; - - RRDDIM *rd = dictionary_set_advanced(st->rrddim_root_index, tmp.id, -1, NULL, rrddim_size(), &tmp); - return(rd); -} - -// ---------------------------------------------------------------------------- -// RRDDIM remove / free a dimension - -void rrddim_free(RRDSET *st, RRDDIM *rd) { - dictionary_del(st->rrddim_root_index, string2str(rd->id)); -} - - -// ---------------------------------------------------------------------------- -// RRDDIM - set dimension options - -int rrddim_hide(RRDSET *st, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrddim_hide() for chart %s, dimension %s", rrdset_name(st), id); - - RRDHOST *host = st->rrdhost; - - RRDDIM *rd = rrddim_find(st, id); - if(unlikely(!rd)) { - netdata_log_error("Cannot find dimension with id '%s' on stats '%s' (%s) on host '%s'.", id, rrdset_name(st), rrdset_id(st), rrdhost_hostname(host)); - return 1; - } - if (!rrddim_flag_check(rd, RRDDIM_FLAG_META_HIDDEN)) { - rrddim_flag_set(rd, RRDDIM_FLAG_META_HIDDEN | RRDDIM_FLAG_METADATA_UPDATE); - rrdhost_flag_set(rd->rrdset->rrdhost, RRDHOST_FLAG_METADATA_UPDATE); - } - - rrddim_option_set(rd, RRDDIM_OPTION_HIDDEN); - rrdcontext_updated_rrddim_flags(rd); - return 0; -} - -int rrddim_unhide(RRDSET *st, const char *id) { - netdata_log_debug(D_RRD_CALLS, "rrddim_unhide() for chart %s, dimension %s", rrdset_name(st), id); - - RRDHOST *host = st->rrdhost; - RRDDIM *rd = rrddim_find(st, id); - if(unlikely(!rd)) { - netdata_log_error("Cannot find dimension with id '%s' on stats '%s' (%s) on host '%s'.", id, rrdset_name(st), rrdset_id(st), rrdhost_hostname(host)); - return 1; - } - if (rrddim_flag_check(rd, RRDDIM_FLAG_META_HIDDEN)) { - rrddim_flag_clear(rd, RRDDIM_FLAG_META_HIDDEN); - rrddim_flag_set(rd, RRDDIM_FLAG_METADATA_UPDATE); - rrdhost_flag_set(rd->rrdset->rrdhost, RRDHOST_FLAG_METADATA_UPDATE); - } - - rrddim_option_clear(rd, RRDDIM_OPTION_HIDDEN); - rrdcontext_updated_rrddim_flags(rd); - return 0; -} - -inline void rrddim_is_obsolete___safe_from_collector_thread(RRDSET *st, RRDDIM *rd) { - netdata_log_debug(D_RRD_CALLS, "rrddim_is_obsolete___safe_from_collector_thread() for chart %s, dimension %s", rrdset_name(st), rrddim_name(rd)); - - if(unlikely(rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED))) { - netdata_log_info("Cannot obsolete already archived dimension %s from chart %s", rrddim_name(rd), rrdset_name(st)); - return; - } - rrddim_flag_set(rd, RRDDIM_FLAG_OBSOLETE); - rrdset_flag_set(st, RRDSET_FLAG_OBSOLETE_DIMENSIONS); - rrdhost_flag_set(st->rrdhost, RRDHOST_FLAG_PENDING_OBSOLETE_DIMENSIONS); - rrdcontext_updated_rrddim_flags(rd); -} - -inline void rrddim_isnot_obsolete___safe_from_collector_thread(RRDSET *st __maybe_unused, RRDDIM *rd) { - netdata_log_debug(D_RRD_CALLS, "rrddim_isnot_obsolete___safe_from_collector_thread() for chart %s, dimension %s", rrdset_name(st), rrddim_name(rd)); - - rrddim_flag_clear(rd, RRDDIM_FLAG_OBSOLETE); - rrdcontext_updated_rrddim_flags(rd); -} - -// ---------------------------------------------------------------------------- -// RRDDIM - collect values for a dimension - -inline collected_number rrddim_set_by_pointer(RRDSET *st, RRDDIM *rd, collected_number value) { - struct timeval now; - now_realtime_timeval(&now); - - return rrddim_timed_set_by_pointer(st, rd, now, value); -} - -collected_number rrddim_timed_set_by_pointer(RRDSET *st __maybe_unused, RRDDIM *rd, struct timeval collected_time, collected_number value) { - netdata_log_debug(D_RRD_CALLS, "rrddim_set_by_pointer() for chart %s, dimension %s, value " COLLECTED_NUMBER_FORMAT, rrdset_name(st), rrddim_name(rd), value); - - rd->collector.last_collected_time = collected_time; - rd->collector.collected_value = value; - rrddim_set_updated(rd); - rd->collector.counter++; - - collected_number v = (value >= 0) ? value : -value; - if (unlikely(v > rd->collector.collected_value_max)) - rd->collector.collected_value_max = v; - - return rd->collector.last_collected_value; -} - - -collected_number rrddim_set(RRDSET *st, const char *id, collected_number value) { - RRDHOST *host = st->rrdhost; - RRDDIM *rd = rrddim_find(st, id); - if(unlikely(!rd)) { - netdata_log_error("Cannot find dimension with id '%s' on stats '%s' (%s) on host '%s'.", id, rrdset_name(st), rrdset_id(st), rrdhost_hostname(host)); - return 0; - } - - return rrddim_set_by_pointer(st, rd, value); -} - - -// ---------------------------------------------------------------------------- -// compatibility layer for RRDDIM files v019 - -#define RRDDIMENSION_MAGIC_V019 "NETDATA RRD DIMENSION FILE V019" - -struct avl_element_v019 { - void *avl_link[2]; - signed char avl_balance; -}; - -struct rrddim_map_save_v019 { - struct avl_element_v019 avl; // ignored - void *id; // ignored - void *name; // ignored - uint32_t algorithm; // print warning on mismatch - update on load - uint32_t rrd_memory_mode; // ignored - long long multiplier; // print warning on mismatch - update on load - long long divisor; // print warning on mismatch - update on load - uint32_t flags; // ignored - uint32_t hash; // ignored - uint32_t hash_name; // ignored - void *cache_filename; // ignored - we use it to keep the filename to save back - size_t collections_counter; // ignored - void *state; // ignored - size_t unused[8]; // ignored - long long collected_value_max; // ignored - unsigned int updated:1; // ignored - unsigned int exposed:1; // ignored - struct timeval last_collected_time; // check to reset all - ignored after load - long double calculated_value; // ignored - long double last_calculated_value; // ignored - long double last_stored_value; // ignored - long long collected_value; // ignored - long long last_collected_value; // load and save - long double collected_volume; // ignored - long double stored_volume; // ignored - void *next; // ignored - void *rrdset; // ignored - long entries; // check to reset all - update on load - int update_every; // check to reset all - update on load - size_t memsize; // check to reset all - update on load - char magic[sizeof(RRDDIMENSION_MAGIC_V019) + 1];// check to reset all - update on load - void *variables; // ignored - storage_number values[]; // the array of values -}; - -size_t rrddim_memory_file_header_size(void) { - return sizeof(struct rrddim_map_save_v019); -} - -void rrddim_memory_file_update(RRDDIM *rd) { - if(!rd || !rd->db.rd_on_file) return; - struct rrddim_map_save_v019 *rd_on_file = rd->db.rd_on_file; - - rd_on_file->last_collected_time.tv_sec = rd->collector.last_collected_time.tv_sec; - rd_on_file->last_collected_time.tv_usec = rd->collector.last_collected_time.tv_usec; - rd_on_file->last_collected_value = rd->collector.last_collected_value; -} - -void rrddim_memory_file_free(RRDDIM *rd) { - if(!rd || !rd->db.rd_on_file) return; - - // needed for memory mode map, to save the latest state - rrddim_memory_file_update(rd); - - struct rrddim_map_save_v019 *rd_on_file = rd->db.rd_on_file; - __atomic_sub_fetch(&rrddim_db_memory_size, rd_on_file->memsize + strlen(rd_on_file->cache_filename), __ATOMIC_RELAXED); - freez(rd_on_file->cache_filename); - netdata_munmap(rd_on_file, rd_on_file->memsize); - - // remove the pointers from the RRDDIM - rd->db.rd_on_file = NULL; - rd->db.data = NULL; -} - -const char *rrddim_cache_filename(RRDDIM *rd) { - if(!rd || !rd->db.rd_on_file) return NULL; - struct rrddim_map_save_v019 *rd_on_file = rd->db.rd_on_file; - return rd_on_file->cache_filename; -} - -void rrddim_memory_file_save(RRDDIM *rd) { - if(!rd || !rd->db.rd_on_file) return; - - rrddim_memory_file_update(rd); - - struct rrddim_map_save_v019 *rd_on_file = rd->db.rd_on_file; - if(rd_on_file->rrd_memory_mode != RRD_MEMORY_MODE_SAVE) return; - - memory_file_save(rd_on_file->cache_filename, rd_on_file, rd_on_file->memsize); -} - -bool rrddim_memory_load_or_create_map_save(RRDSET *st, RRDDIM *rd, RRD_MEMORY_MODE memory_mode) { - if(memory_mode != RRD_MEMORY_MODE_SAVE && memory_mode != RRD_MEMORY_MODE_MAP) - return false; - - struct rrddim_map_save_v019 *rd_on_file = NULL; - - unsigned long size = sizeof(struct rrddim_map_save_v019) + (st->db.entries * sizeof(storage_number)); - - char filename[FILENAME_MAX + 1]; - char fullfilename[FILENAME_MAX + 1]; - rrdset_strncpyz_name(filename, rrddim_id(rd), FILENAME_MAX); - snprintfz(fullfilename, FILENAME_MAX, "%s/%s.db", rrdset_cache_dir(st), filename); - - rd_on_file = (struct rrddim_map_save_v019 *)netdata_mmap( - fullfilename, size, ((memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE), 1, false, NULL); - - if(unlikely(!rd_on_file)) return false; - - struct timeval now; - now_realtime_timeval(&now); - - int reset = 0; - rd_on_file->magic[sizeof(RRDDIMENSION_MAGIC_V019)] = '\0'; - if(strcmp(rd_on_file->magic, RRDDIMENSION_MAGIC_V019) != 0) { - netdata_log_info("Initializing file %s.", fullfilename); - memset(rd_on_file, 0, size); - reset = 1; - } - else if(rd_on_file->memsize != size) { - netdata_log_error("File %s does not have the desired size, expected %lu but found %lu. Clearing it.", fullfilename, size, (unsigned long int) rd_on_file->memsize); - memset(rd_on_file, 0, size); - reset = 1; - } - else if(rd_on_file->update_every != st->update_every) { - netdata_log_error("File %s does not have the same update frequency, expected %d but found %d. Clearing it.", fullfilename, st->update_every, rd_on_file->update_every); - memset(rd_on_file, 0, size); - reset = 1; - } - else if(dt_usec(&now, &rd_on_file->last_collected_time) > (rd_on_file->entries * rd_on_file->update_every * USEC_PER_SEC)) { - netdata_log_info("File %s is too old (last collected %llu seconds ago, but the database is %ld seconds). Clearing it.", fullfilename, dt_usec(&now, &rd_on_file->last_collected_time) / USEC_PER_SEC, rd_on_file->entries * rd_on_file->update_every); - memset(rd_on_file, 0, size); - reset = 1; - } - - if(!reset) { - rd->collector.last_collected_value = rd_on_file->last_collected_value; - - if(rd_on_file->algorithm != rd->algorithm) - netdata_log_info("File %s does not have the expected algorithm (expected %u '%s', found %u '%s'). Previous values may be wrong.", - fullfilename, rd->algorithm, rrd_algorithm_name(rd->algorithm), rd_on_file->algorithm, rrd_algorithm_name(rd_on_file->algorithm)); - - if(rd_on_file->multiplier != rd->multiplier) - netdata_log_info("File %s does not have the expected multiplier (expected %d, found %ld). " - "Previous values may be wrong.", fullfilename, rd->multiplier, (long)rd_on_file->multiplier); - - if(rd_on_file->divisor != rd->divisor) - netdata_log_info("File %s does not have the expected divisor (expected %d, found %ld). " - "Previous values may be wrong.", fullfilename, rd->divisor, (long)rd_on_file->divisor); - } - - // zero the entire header - memset(rd_on_file, 0, sizeof(struct rrddim_map_save_v019)); - - // set the important fields - strcpy(rd_on_file->magic, RRDDIMENSION_MAGIC_V019); - rd_on_file->algorithm = rd->algorithm; - rd_on_file->multiplier = rd->multiplier; - rd_on_file->divisor = rd->divisor; - rd_on_file->entries = st->db.entries; - rd_on_file->update_every = rd->rrdset->update_every; - rd_on_file->memsize = size; - rd_on_file->rrd_memory_mode = memory_mode; - rd_on_file->cache_filename = strdupz(fullfilename); - - __atomic_add_fetch(&rrddim_db_memory_size, rd_on_file->memsize + strlen(rd_on_file->cache_filename), __ATOMIC_RELAXED); - - rd->db.data = &rd_on_file->values[0]; - rd->db.rd_on_file = rd_on_file; - rd->db.memsize = size; - rrddim_memory_file_update(rd); - - return true; -} |