// SPDX-License-Identifier: GPL-3.0-or-later #include "internal.h" #define QUERY_TARGET_MAX_REALLOC_INCREASE 500 #define query_target_realloc_size(size, start) \ (size) ? ((size) < QUERY_TARGET_MAX_REALLOC_INCREASE ? (size) * 2 : (size) + QUERY_TARGET_MAX_REALLOC_INCREASE) : (start); static void query_metric_release(QUERY_TARGET *qt, QUERY_METRIC *qm); static void query_dimension_release(QUERY_DIMENSION *qd); static void query_instance_release(QUERY_INSTANCE *qi); static void query_context_release(QUERY_CONTEXT *qc); static void query_node_release(QUERY_NODE *qn); static __thread QUERY_TARGET *thread_qt = NULL; static struct { struct { SPINLOCK spinlock; size_t count; QUERY_TARGET *base; } available; struct { SPINLOCK spinlock; size_t count; QUERY_TARGET *base; } used; } query_target_base = { .available = { .spinlock = NETDATA_SPINLOCK_INITIALIZER, .base = NULL, .count = 0, }, .used = { .spinlock = NETDATA_SPINLOCK_INITIALIZER, .base = NULL, .count = 0, }, }; static void query_target_destroy(QUERY_TARGET *qt) { __atomic_sub_fetch(&netdata_buffers_statistics.query_targets_size, qt->query.size * sizeof(*qt->query.array), __ATOMIC_RELAXED); freez(qt->query.array); __atomic_sub_fetch(&netdata_buffers_statistics.query_targets_size, qt->dimensions.size * sizeof(*qt->dimensions.array), __ATOMIC_RELAXED); freez(qt->dimensions.array); __atomic_sub_fetch(&netdata_buffers_statistics.query_targets_size, qt->instances.size * sizeof(*qt->instances.array), __ATOMIC_RELAXED); freez(qt->instances.array); __atomic_sub_fetch(&netdata_buffers_statistics.query_targets_size, qt->contexts.size * sizeof(*qt->contexts.array), __ATOMIC_RELAXED); freez(qt->contexts.array); __atomic_sub_fetch(&netdata_buffers_statistics.query_targets_size, qt->nodes.size * sizeof(*qt->nodes.array), __ATOMIC_RELAXED); freez(qt->nodes.array); freez(qt); } void query_target_release(QUERY_TARGET *qt) { if(unlikely(!qt)) return; internal_fatal(!qt->internal.used, "QUERY TARGET: qt to be released is not used"); simple_pattern_free(qt->nodes.scope_pattern); qt->nodes.scope_pattern = NULL; simple_pattern_free(qt->nodes.pattern); qt->nodes.pattern = NULL; simple_pattern_free(qt->contexts.scope_pattern); qt->contexts.scope_pattern = NULL; simple_pattern_free(qt->contexts.pattern); qt->contexts.pattern = NULL; simple_pattern_free(qt->instances.pattern); qt->instances.pattern = NULL; simple_pattern_free(qt->instances.chart_label_key_pattern); qt->instances.chart_label_key_pattern = NULL; simple_pattern_free(qt->instances.labels_pattern); qt->instances.labels_pattern = NULL; simple_pattern_free(qt->query.pattern); qt->query.pattern = NULL; // release the query for(size_t i = 0, used = qt->query.used; i < used ;i++) { QUERY_METRIC *qm = query_metric(qt, i); query_metric_release(qt, qm); } qt->query.used = 0; // release the dimensions for(size_t i = 0, used = qt->dimensions.used; i < used ; i++) { QUERY_DIMENSION *qd = query_dimension(qt, i); query_dimension_release(qd); } qt->dimensions.used = 0; // release the instances for(size_t i = 0, used = qt->instances.used; i < used ;i++) { QUERY_INSTANCE *qi = query_instance(qt, i); query_instance_release(qi); } qt->instances.used = 0; // release the contexts for(size_t i = 0, used = qt->contexts.used; i < used ;i++) { QUERY_CONTEXT *qc = query_context(qt, i); rrdcontext_release(qc->rca); qc->rca = NULL; } qt->contexts.used = 0; // release the nodes for(size_t i = 0, used = qt->nodes.used; i < used ; i++) { QUERY_NODE *qn = query_node(qt, i); query_node_release(qn); } qt->nodes.used = 0; qt->db.minimum_latest_update_every_s = 0; qt->db.first_time_s = 0; qt->db.last_time_s = 0; for(size_t g = 0; g < MAX_QUERY_GROUP_BY_PASSES ;g++) qt->group_by[g].used = 0; qt->id[0] = '\0'; netdata_spinlock_lock(&query_target_base.used.spinlock); DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(query_target_base.used.base, qt, internal.prev, internal.next); query_target_base.used.count--; netdata_spinlock_unlock(&query_target_base.used.spinlock); qt->internal.used = false; thread_qt = NULL; if (qt->internal.queries > 1000) { query_target_destroy(qt); } else { netdata_spinlock_lock(&query_target_base.available.spinlock); DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(query_target_base.available.base, qt, internal.prev, internal.next); query_target_base.available.count++; netdata_spinlock_unlock(&query_target_base.available.spinlock); } } static QUERY_TARGET *query_target_get(void) { netdata_spinlock_lock(&query_target_base.available.spinlock); QUERY_TARGET *qt = query_target_base.available.base; if (qt) { DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(query_target_base.available.base, qt, internal.prev, internal.next); query_target_base.available.count--; } netdata_spinlock_unlock(&query_target_base.available.spinlock); if(unlikely(!qt)) qt = callocz(1, sizeof(*qt)); netdata_spinlock_lock(&query_target_base.used.spinlock); DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(query_target_base.used.base, qt, internal.prev, internal.next); query_target_base.used.count++; netdata_spinlock_unlock(&query_target_base.used.spinlock); qt->internal.used = true; qt->internal.queries++; thread_qt = qt; return qt; } // this is used to release a query target from a cancelled thread void query_target_free(void) { query_target_release(thread_qt); } // ---------------------------------------------------------------------------- // query API typedef struct query_target_locals { time_t start_s; QUERY_TARGET *qt; RRDSET *st; const char *scope_nodes; const char *scope_contexts; const char *nodes; const char *contexts; const char *instances; const char *dimensions; const char *chart_label_key; const char *labels; const char *alerts; long long after; long long before; bool match_ids; bool match_names; size_t metrics_skipped_due_to_not_matching_timeframe; char host_node_id_str[UUID_STR_LEN]; QUERY_NODE *qn; // temp to pass on callbacks, ignore otherwise - no need to free } QUERY_TARGET_LOCALS; struct storage_engine *query_metric_storage_engine(QUERY_TARGET *qt, QUERY_METRIC *qm, size_t tier) { QUERY_NODE *qn = query_node(qt, qm->link.query_node_id); return qn->rrdhost->db[tier].eng; } static inline void query_metric_release(QUERY_TARGET *qt, QUERY_METRIC *qm) { qm->plan.used = 0; // reset the tiers for(size_t tier = 0; tier < storage_tiers ;tier++) { if(qm->tiers[tier].db_metric_handle) { STORAGE_ENGINE *eng = query_metric_storage_engine(qt, qm, tier); eng->api.metric_release(qm->tiers[tier].db_metric_handle); qm->tiers[tier].db_metric_handle = NULL; } } } static bool query_metric_add(QUERY_TARGET_LOCALS *qtl, QUERY_NODE *qn, QUERY_CONTEXT *qc, QUERY_INSTANCE *qi, size_t qd_slot, RRDMETRIC *rm, RRDR_DIMENSION_FLAGS options) { QUERY_TARGET *qt = qtl->qt; RRDINSTANCE *ri = rm->ri; time_t common_first_time_s = 0; time_t common_last_time_s = 0; time_t common_update_every_s = 0; size_t tiers_added = 0; struct { STORAGE_ENGINE *eng; STORAGE_METRIC_HANDLE *db_metric_handle; time_t db_first_time_s; time_t db_last_time_s; time_t db_update_every_s; } tier_retention[storage_tiers]; for (size_t tier = 0; tier < storage_tiers; tier++) { STORAGE_ENGINE *eng = qn->rrdhost->db[tier].eng; tier_retention[tier].eng = eng; tier_retention[tier].db_update_every_s = (time_t) (qn->rrdhost->db[tier].tier_grouping * ri->update_every_s); if(rm->rrddim && rm->rrddim->tiers[tier].db_metric_handle) tier_retention[tier].db_metric_handle = eng->api.metric_dup(rm->rrddim->tiers[tier].db_metric_handle); else tier_retention[tier].db_metric_handle = eng->api.metric_get(qn->rrdhost->db[tier].instance, &rm->uuid); if(tier_retention[tier].db_metric_handle) { tier_retention[tier].db_first_time_s = storage_engine_oldest_time_s(tier_retention[tier].eng->backend, tier_retention[tier].db_metric_handle); tier_retention[tier].db_last_time_s = storage_engine_latest_time_s(tier_retention[tier].eng->backend, tier_retention[tier].db_metric_handle); if(!common_first_time_s) common_first_time_s = tier_retention[tier].db_first_time_s; else if(tier_retention[tier].db_first_time_s) common_first_time_s = MIN(common_first_time_s, tier_retention[tier].db_first_time_s); if(!common_last_time_s) common_last_time_s = tier_retention[tier].db_last_time_s; else common_last_time_s = MAX(common_last_time_s, tier_retention[tier].db_last_time_s); if(!common_update_every_s) common_update_every_s = tier_retention[tier].db_update_every_s; else if(tier_retention[tier].db_update_every_s) common_update_every_s = MIN(common_update_every_s, tier_retention[tier].db_update_every_s); tiers_added++; } else { tier_retention[tier].db_first_time_s = 0; tier_retention[tier].db_last_time_s = 0; tier_retention[tier].db_update_every_s = 0; } } for (size_t tier = 0; tier < storage_tiers; tier++) { if(!qt->db.tiers[tier].update_every || (tier_retention[tier].db_update_every_s && tier_retention[tier].db_update_every_s < qt->db.tiers[tier].update_every)) qt->db.tiers[tier].update_every = tier_retention[tier].db_update_every_s; if(!qt->db.tiers[tier].retention.first_time_s || (tier_retention[tier].db_first_time_s && tier_retention[tier].db_first_time_s < qt->db.tiers[tier].retention.first_time_s)) qt->db.tiers[tier].retention.first_time_s = tier_retention[tier].db_first_time_s; if(!qt->db.tiers[tier].retention.last_time_s || (tier_retention[tier].db_last_time_s && tier_retention[tier].db_last_time_s > qt->db.tiers[tier].retention.last_time_s)) qt->db.tiers[tier].retention.last_time_s = tier_retention[tier].db_last_time_s; } bool timeframe_matches = (tiers_added && query_matches_retention(qt->window.after, qt->window.before, common_first_time_s, common_last_time_s, common_update_every_s)) ? true : false; if(timeframe_matches) { if(ri->rrdset) ri->rrdset->last_accessed_time_s = qtl->start_s; if (qt->query.used == qt->query.size) { size_t old_mem = qt->query.size * sizeof(*qt->query.array); qt->query.size = query_target_realloc_size(qt->query.size, 4); size_t new_mem = qt->query.size * sizeof(*qt->query.array); qt->query.array = reallocz(qt->query.array, new_mem); __atomic_add_fetch(&netdata_buffers_statistics.query_targets_size, new_mem - old_mem, __ATOMIC_RELAXED); } QUERY_METRIC *qm = &qt->query.array[qt->query.used++]; memset(qm, 0, sizeof(*qm)); qm->status = options; qm->link.query_node_id = qn->slot; qm->link.query_context_id = qc->slot; qm->link.query_instance_id = qi->slot; qm->link.query_dimension_id = qd_slot; if (!qt->db.first_time_s || common_first_time_s < qt->db.first_time_s) qt->db.first_time_s = common_first_time_s; if (!qt->db.last_time_s || common_last_time_s > qt->db.last_time_s) qt->db.last_time_s = common_last_time_s; for (size_t tier = 0; tier < storage_tiers; tier++) { internal_fatal(tier_retention[tier].eng != query_metric_storage_engine(qt, qm, tier), "QUERY TARGET: storage engine mismatch"); qm->tiers[tier].db_metric_handle = tier_retention[tier].db_metric_handle; qm->tiers[tier].db_first_time_s = tier_retention[tier].db_first_time_s; qm->tiers[tier].db_last_time_s = tier_retention[tier].db_last_time_s; qm->tiers[tier].db_update_every_s = tier_retention[tier].db_update_every_s; } return true; } // cleanup anything we allocated to the retention we will not use for(size_t tier = 0; tier < storage_tiers ;tier++) { if (tier_retention[tier].db_metric_handle) tier_retention[tier].eng->api.metric_release(tier_retention[tier].db_metric_handle); } return false; } static inline bool rrdmetric_retention_matches_query(QUERY_TARGET *qt, RRDMETRIC *rm, time_t now_s) { time_t first_time_s = rm->first_time_s; time_t last_time_s = rrd_flag_is_collected(rm) ? now_s : rm->last_time_s; time_t update_every_s = rm->ri->update_every_s; return query_matches_retention(qt->window.after, qt->window.before, first_time_s, last_time_s, update_every_s); } static inline void query_dimension_release(QUERY_DIMENSION *qd) { rrdmetric_release(qd->rma); qd->rma = NULL; } static QUERY_DIMENSION *query_dimension_allocate(QUERY_TARGET *qt, RRDMETRIC_ACQUIRED *rma, QUERY_STATUS status, size_t priority) { if(qt->dimensions.used == qt->dimensions.size) { size_t old_mem = qt->dimensions.size * sizeof(*qt->dimensions.array); qt->dimensions.size = query_target_realloc_size(qt->dimensions.size, 4); size_t new_mem = qt->dimensions.size * sizeof(*qt->dimensions.array); qt->dimensions.array = reallocz(qt->dimensions.array, new_mem); __atomic_add_fetch(&netdata_buffers_statistics.query_targets_size, new_mem - old_mem, __ATOMIC_RELAXED); } QUERY_DIMENSION *qd = &qt->dimensions.array[qt->dimensions.used]; memset(qd, 0, sizeof(*qd)); qd->slot = qt->dimensions.used++; qd->rma = rrdmetric_acquired_dup(rma); qd->status = status; qd->priority = priority; return qd; } static bool query_dimension_add(QUERY_TARGET_LOCALS *qtl, QUERY_NODE *qn, QUERY_CONTEXT *qc, QUERY_INSTANCE *qi, RRDMETRIC_ACQUIRED *rma, bool queryable_instance, size_t *metrics_added, size_t priority) { QUERY_TARGET *qt = qtl->qt; RRDMETRIC *rm = rrdmetric_acquired_value(rma); if(rrd_flag_is_deleted(rm)) return false; QUERY_STATUS status = QUERY_STATUS_NONE; bool undo = false; if(!queryable_instance) { if(rrdmetric_retention_matches_query(qt, rm, qtl->start_s)) { qi->metrics.excluded++; qc->metrics.excluded++; qn->metrics.excluded++; status |= QUERY_STATUS_EXCLUDED; } else undo = true; } else { RRDR_DIMENSION_FLAGS options = RRDR_DIMENSION_DEFAULT; bool needed = false; if (qt->query.pattern) { // the user asked for specific dimensions SIMPLE_PATTERN_RESULT ret = SP_NOT_MATCHED; if(qtl->match_ids) ret = simple_pattern_matches_string_extract(qt->query.pattern, rm->id, NULL, 0); if(ret == SP_NOT_MATCHED && qtl->match_names && (rm->name != rm->id || !qtl->match_ids)) ret = simple_pattern_matches_string_extract(qt->query.pattern, rm->name, NULL, 0); if(ret == SP_MATCHED_POSITIVE) { needed = true; options |= RRDR_DIMENSION_SELECTED | RRDR_DIMENSION_NONZERO; } else { // the user selection does not match this dimension // but, we may still need to query it if (query_target_needs_all_dimensions(qt)) { // this is percentage calculation // so, we need this dimension to calculate the percentage needed = true; options |= RRDR_DIMENSION_HIDDEN; } else { // the user did not select this dimension // and the calculation is not percentage // so, no need to query it ; } } } else { // we don't have a dimensions pattern // so this is a selected dimension // if it is not hidden if(rrd_flag_check(rm, RRD_FLAG_HIDDEN) || (rm->rrddim && rrddim_option_check(rm->rrddim, RRDDIM_OPTION_HIDDEN))) { // this is a hidden dimension // we don't need to query it status |= QUERY_STATUS_DIMENSION_HIDDEN; options |= RRDR_DIMENSION_HIDDEN; if (query_target_needs_all_dimensions(qt)) { // this is percentage calculation // so, we need this dimension to calculate the percentage needed = true; } } else { // this is a not hidden dimension // and the user did not provide any selection for dimensions // so, we need to query it needed = true; options |= RRDR_DIMENSION_SELECTED; } } if (needed) { if(query_metric_add(qtl, qn, qc, qi, qt->dimensions.used, rm, options)) { (*metrics_added)++; qi->metrics.selected++; qc->metrics.selected++; qn->metrics.selected++; } else { undo = true; qtl->metrics_skipped_due_to_not_matching_timeframe++; } } else if(rrdmetric_retention_matches_query(qt, rm, qtl->start_s)) { qi->metrics.excluded++; qc->metrics.excluded++; qn->metrics.excluded++; status |= QUERY_STATUS_EXCLUDED; } else undo = true; } if(undo) return false; query_dimension_allocate(qt, rma, status, priority); return true; } static inline STRING *rrdinstance_create_id_fqdn_v1(RRDINSTANCE_ACQUIRED *ria) { if(unlikely(!ria)) return NULL; RRDINSTANCE *ri = rrdinstance_acquired_value(ria); return string_dup(ri->id); } static inline STRING *rrdinstance_create_name_fqdn_v1(RRDINSTANCE_ACQUIRED *ria) { if(unlikely(!ria)) return NULL; RRDINSTANCE *ri = rrdinstance_acquired_value(ria); return string_dup(ri->name); } static inline STRING *rrdinstance_create_id_fqdn_v2(RRDINSTANCE_ACQUIRED *ria) { if(unlikely(!ria)) return NULL; char buffer[RRD_ID_LENGTH_MAX + 1]; RRDHOST *host = rrdinstance_acquired_rrdhost(ria); snprintfz(buffer, RRD_ID_LENGTH_MAX, "%s@%s", rrdinstance_acquired_id(ria), host->machine_guid); return string_strdupz(buffer); } static inline STRING *rrdinstance_create_name_fqdn_v2(RRDINSTANCE_ACQUIRED *ria) { if(unlikely(!ria)) return NULL; char buffer[RRD_ID_LENGTH_MAX + 1]; RRDHOST *host = rrdinstance_acquired_rrdhost(ria); snprintfz(buffer, RRD_ID_LENGTH_MAX, "%s@%s", rrdinstance_acquired_name(ria), rrdhost_hostname(host)); return string_strdupz(buffer); } inline STRING *query_instance_id_fqdn(QUERY_INSTANCE *qi, size_t version) { if(!qi->id_fqdn) { if (version <= 1) qi->id_fqdn = rrdinstance_create_id_fqdn_v1(qi->ria); else qi->id_fqdn = rrdinstance_create_id_fqdn_v2(qi->ria); } return qi->id_fqdn; } inline STRING *query_instance_name_fqdn(QUERY_INSTANCE *qi, size_t version) { if(!qi->name_fqdn) { if (version <= 1) qi->name_fqdn = rrdinstance_create_name_fqdn_v1(qi->ria); else qi->name_fqdn = rrdinstance_create_name_fqdn_v2(qi->ria); } return qi->name_fqdn; } RRDSET *rrdinstance_acquired_rrdset(RRDINSTANCE_ACQUIRED *ria) { RRDINSTANCE *ri = rrdinstance_acquired_value(ria); return ri->rrdset; } const char *rrdcontext_acquired_units(RRDCONTEXT_ACQUIRED *rca) { RRDCONTEXT *rc = rrdcontext_acquired_value(rca); return string2str(rc->units); } RRDSET_TYPE rrdcontext_acquired_chart_type(RRDCONTEXT_ACQUIRED *rca) { RRDCONTEXT *rc = rrdcontext_acquired_value(rca); return rc->chart_type; } const char *rrdcontext_acquired_title(RRDCONTEXT_ACQUIRED *rca) { RRDCONTEXT *rc = rrdcontext_acquired_value(rca); return string2str(rc->title); } static void query_target_eval_instance_rrdcalc(QUERY_TARGET_LOCALS *qtl __maybe_unused, QUERY_NODE *qn, QUERY_CONTEXT *qc, QUERY_INSTANCE *qi) { RRDSET *st = rrdinstance_acquired_rrdset(qi->ria); if (st) { netdata_rwlock_rdlock(&st->alerts.rwlock); for (RRDCALC *rc = st->alerts.base; rc; rc = rc->next) { switch(rc->status) { case RRDCALC_STATUS_CLEAR: qi->alerts.clear++; qc->alerts.clear++; qn->alerts.clear++; break; case RRDCALC_STATUS_WARNING: qi->alerts.warning++; qc->alerts.warning++; qn->alerts.warning++; break; case RRDCALC_STATUS_CRITICAL: qi->alerts.critical++; qc->alerts.critical++; qn->alerts.critical++; break; default: case RRDCALC_STATUS_UNINITIALIZED: case RRDCALC_STATUS_UNDEFINED: case RRDCALC_STATUS_REMOVED: qi->alerts.other++; qc->alerts.other++; qn->alerts.other++; break; } } netdata_rwlock_unlock(&st->alerts.rwlock); } } static bool query_target_match_alert_pattern(RRDINSTANCE_ACQUIRED *ria, SIMPLE_PATTERN *pattern) { if(!pattern) return true; RRDSET *st = rrdinstance_acquired_rrdset(ria); if (!st) return false; BUFFER *wb = NULL; bool matched = false; netdata_rwlock_rdlock(&st->alerts.rwlock); if (st->alerts.base) { for (RRDCALC *rc = st->alerts.base; rc; rc = rc->next) { SIMPLE_PATTERN_RESULT ret = simple_pattern_matches_string_extract(pattern, rc->name, NULL, 0); if(ret == SP_MATCHED_POSITIVE) { matched = true; break; } else if(ret == SP_MATCHED_NEGATIVE) break; if (!wb) wb = buffer_create(0, NULL); else buffer_flush(wb); buffer_fast_strcat(wb, string2str(rc->name), string_strlen(rc->name)); buffer_fast_strcat(wb, ":", 1); buffer_strcat(wb, rrdcalc_status2string(rc->status)); ret = simple_pattern_matches_buffer_extract(pattern, wb, NULL, 0); if(ret == SP_MATCHED_POSITIVE) { matched = true; break; } else if(ret == SP_MATCHED_NEGATIVE) break; } } netdata_rwlock_unlock(&st->alerts.rwlock); buffer_free(wb); return matched; } static inline void query_instance_release(QUERY_INSTANCE *qi) { if(qi->ria) { rrdinstance_release(qi->ria); qi->ria = NULL; } string_freez(qi->id_fqdn); qi->id_fqdn = NULL; string_freez(qi->name_fqdn); qi->name_fqdn = NULL; } static inline QUERY_INSTANCE *query_instance_allocate(QUERY_TARGET *qt, RRDINSTANCE_ACQUIRED *ria, size_t qn_slot) { if(qt->instances.used == qt->instances.size) { size_t old_mem = qt->instances.size * sizeof(*qt->instances.array); qt->instances.size = query_target_realloc_size(qt->instances.size, 2); size_t new_mem = qt->instances.size * sizeof(*qt->instances.array); qt->instances.array = reallocz(qt->instances.array, new_mem); __atomic_add_fetch(&netdata_buffers_statistics.query_targets_size, new_mem - old_mem, __ATOMIC_RELAXED); } QUERY_INSTANCE *qi = &qt->instances.array[qt->instances.used]; memset(qi, 0, sizeof(*qi)); qi->slot = qt->instances.used; qt->instances.used++; qi->ria = rrdinstance_acquired_dup(ria); qi->query_host_id = qn_slot; return qi; } static inline SIMPLE_PATTERN_RESULT query_instance_matches(QUERY_INSTANCE *qi, RRDINSTANCE *ri, SIMPLE_PATTERN *instances_sp, bool match_ids, bool match_names, size_t version, char *host_node_id_str) { SIMPLE_PATTERN_RESULT ret = SP_MATCHED_POSITIVE; if(instances_sp) { ret = SP_NOT_MATCHED; if(match_ids) ret = simple_pattern_matches_string_extract(instances_sp, ri->id, NULL, 0); if (ret == SP_NOT_MATCHED && match_names && (ri->name != ri->id || !match_ids)) ret = simple_pattern_matches_string_extract(instances_sp, ri->name, NULL, 0); if (ret == SP_NOT_MATCHED && match_ids) ret = simple_pattern_matches_string_extract(instances_sp, query_instance_id_fqdn(qi, version), NULL, 0); if (ret == SP_NOT_MATCHED && match_names) ret = simple_pattern_matches_string_extract(instances_sp, query_instance_name_fqdn(qi, version), NULL, 0); if (ret == SP_NOT_MATCHED && match_ids && host_node_id_str[0]) { char buffer[RRD_ID_LENGTH_MAX + 1]; snprintfz(buffer, RRD_ID_LENGTH_MAX, "%s@%s", rrdinstance_acquired_id(qi->ria), host_node_id_str); ret = simple_pattern_matches_extract(instances_sp, buffer, NULL, 0); } } return ret; } static inline bool query_instance_matches_labels(RRDINSTANCE *ri, SIMPLE_PATTERN *chart_label_key_sp, SIMPLE_PATTERN *labels_sp) { if ((chart_label_key_sp && !rrdlabels_match_simple_pattern_parsed( ri->rrdlabels, chart_label_key_sp, '\0', NULL)) || (labels_sp && !rrdlabels_match_simple_pattern_parsed( ri->rrdlabels, labels_sp, ':', NULL))) return false; return true; } static bool query_instance_add(QUERY_TARGET_LOCALS *qtl, QUERY_NODE *qn, QUERY_CONTEXT *qc, RRDINSTANCE_ACQUIRED *ria, bool queryable_instance, bool filter_instances) { RRDINSTANCE *ri = rrdinstance_acquired_value(ria); if(rrd_flag_is_deleted(ri)) return false; QUERY_TARGET *qt = qtl->qt; QUERY_INSTANCE *qi = query_instance_allocate(qt, ria, qn->slot); if(qt->db.minimum_latest_update_every_s == 0 || ri->update_every_s < qt->db.minimum_latest_update_every_s) qt->db.minimum_latest_update_every_s = ri->update_every_s; if(queryable_instance && filter_instances) queryable_instance = (SP_MATCHED_POSITIVE == query_instance_matches( qi, ri, qt->instances.pattern, qtl->match_ids, qtl->match_names, qt->request.version, qtl->host_node_id_str)); if(queryable_instance) queryable_instance = query_instance_matches_labels(ri, qt->instances.chart_label_key_pattern, qt->instances.labels_pattern); if(queryable_instance) { if(qt->instances.alerts_pattern && !query_target_match_alert_pattern(ria, qt->instances.alerts_pattern)) queryable_instance = false; } if(queryable_instance && qt->request.version >= 2) query_target_eval_instance_rrdcalc(qtl, qn, qc, qi); size_t dimensions_added = 0, metrics_added = 0, priority = 0; if(unlikely(qt->request.rma)) { if(query_dimension_add(qtl, qn, qc, qi, qt->request.rma, queryable_instance, &metrics_added, priority++)) dimensions_added++; } else { RRDMETRIC *rm; dfe_start_read(ri->rrdmetrics, rm) { if(query_dimension_add(qtl, qn, qc, qi, (RRDMETRIC_ACQUIRED *) rm_dfe.item, queryable_instance, &metrics_added, priority++)) dimensions_added++; } dfe_done(rm); } if(!dimensions_added) { qt->instances.used--; query_instance_release(qi); return false; } else { if(metrics_added) { qc->instances.selected++; qn->instances.selected++; } else { qc->instances.excluded++; qn->instances.excluded++; } } return true; } static inline void query_context_release(QUERY_CONTEXT *qc) { rrdcontext_release(qc->rca); qc->rca = NULL; } static inline QUERY_CONTEXT *query_context_allocate(QUERY_TARGET *qt, RRDCONTEXT_ACQUIRED *rca) { if(qt->contexts.used == qt->contexts.size) { size_t old_mem = qt->contexts.size * sizeof(*qt->contexts.array); qt->contexts.size = query_target_realloc_size(qt->contexts.size, 2); size_t new_mem = qt->contexts.size * sizeof(*qt->contexts.array); qt->contexts.array = reallocz(qt->contexts.array, new_mem); __atomic_add_fetch(&netdata_buffers_statistics.query_targets_size, new_mem - old_mem, __ATOMIC_RELAXED); } QUERY_CONTEXT *qc = &qt->contexts.array[qt->contexts.used]; memset(qc, 0, sizeof(*qc)); qc->slot = qt->contexts.used++; qc->rca = rrdcontext_acquired_dup(rca); return qc; } static ssize_t query_context_add(void *data, RRDCONTEXT_ACQUIRED *rca, bool queryable_context) { QUERY_TARGET_LOCALS *qtl = data; RRDCONTEXT *rc = rrdcontext_acquired_value(rca); if(rrd_flag_is_deleted(rc)) return 0; QUERY_NODE *qn = qtl->qn; QUERY_TARGET *qt = qtl->qt; QUERY_CONTEXT *qc = query_context_allocate(qt, rca); ssize_t added = 0; if(unlikely(qt->request.ria)) { if(query_instance_add(qtl, qn, qc, qt->request.ria, queryable_context, false)) added++; } else if(unlikely(qtl->st && qtl->st->rrdcontext == rca && qtl->st->rrdinstance)) { if(query_instance_add(qtl, qn, qc, qtl->st->rrdinstance, queryable_context, false)) added++; } else { RRDINSTANCE *ri; dfe_start_read(rc->rrdinstances, ri) { if(query_instance_add(qtl, qn, qc, (RRDINSTANCE_ACQUIRED *) ri_dfe.item, queryable_context, true)) added++; } dfe_done(ri); } if(!added) { query_context_release(qc); qt->contexts.used--; return 0; } return added; } static inline void query_node_release(QUERY_NODE *qn) { qn->rrdhost = NULL; } static inline QUERY_NODE *query_node_allocate(QUERY_TARGET *qt, RRDHOST *host) { if(qt->nodes.used == qt->nodes.size) { size_t old_mem = qt->nodes.size * sizeof(*qt->nodes.array); qt->nodes.size = query_target_realloc_size(qt->nodes.size, 2); size_t new_mem = qt->nodes.size * sizeof(*qt->nodes.array); qt->nodes.array = reallocz(qt->nodes.array, new_mem); __atomic_add_fetch(&netdata_buffers_statistics.query_targets_size, new_mem - old_mem, __ATOMIC_RELAXED); } QUERY_NODE *qn = &qt->nodes.array[qt->nodes.used]; memset(qn, 0, sizeof(*qn)); qn->slot = qt->nodes.used++; qn->rrdhost = host; return qn; } static ssize_t query_node_add(void *data, RRDHOST *host, bool queryable_host) { QUERY_TARGET_LOCALS *qtl = data; QUERY_TARGET *qt = qtl->qt; QUERY_NODE *qn = query_node_allocate(qt, host); if(host->node_id) { if(!qtl->host_node_id_str[0]) uuid_unparse_lower(*host->node_id, qn->node_id); else memcpy(qn->node_id, qtl->host_node_id_str, sizeof(qn->node_id)); } else qn->node_id[0] = '\0'; // is the chart given valid? if(unlikely(qtl->st && (!qtl->st->rrdinstance || !qtl->st->rrdcontext))) { error("QUERY TARGET: RRDSET '%s' given, but it is not linked to rrdcontext structures. Linking it now.", rrdset_name(qtl->st)); rrdinstance_from_rrdset(qtl->st); if(unlikely(qtl->st && (!qtl->st->rrdinstance || !qtl->st->rrdcontext))) { error("QUERY TARGET: RRDSET '%s' given, but failed to be linked to rrdcontext structures. Switching to context query.", rrdset_name(qtl->st)); if (!is_valid_sp(qtl->instances)) qtl->instances = rrdset_name(qtl->st); qtl->st = NULL; } } qtl->qn = qn; ssize_t added = 0; if(unlikely(qt->request.rca)) { if(query_context_add(qtl, qt->request.rca, true)) added++; } else if(unlikely(qtl->st)) { // single chart data queries if(query_context_add(qtl, qtl->st->rrdcontext, true)) added++; } else { // context pattern queries added = query_scope_foreach_context( host, qtl->scope_contexts, qt->contexts.scope_pattern, qt->contexts.pattern, query_context_add, queryable_host, qtl); if(added < 0) added = 0; } qtl->qn = NULL; if(!added) { query_node_release(qn); qt->nodes.used--; return false; } return true; } void query_target_generate_name(QUERY_TARGET *qt) { char options_buffer[100 + 1]; web_client_api_request_v1_data_options_to_string(options_buffer, 100, qt->request.options); char resampling_buffer[20 + 1] = ""; if(qt->request.resampling_time > 1) snprintfz(resampling_buffer, 20, "/resampling:%lld", (long long)qt->request.resampling_time); char tier_buffer[20 + 1] = ""; if(qt->request.options & RRDR_OPTION_SELECTED_TIER) snprintfz(tier_buffer, 20, "/tier:%zu", qt->request.tier); if(qt->request.st) snprintfz(qt->id, MAX_QUERY_TARGET_ID_LENGTH, "chart://hosts:%s/instance:%s/dimensions:%s/after:%lld/before:%lld/points:%zu/group:%s%s/options:%s%s%s" , rrdhost_hostname(qt->request.st->rrdhost) , rrdset_name(qt->request.st) , (qt->request.dimensions) ? qt->request.dimensions : "*" , (long long)qt->request.after , (long long)qt->request.before , qt->request.points , time_grouping_tostring(qt->request.time_group_method) , qt->request.time_group_options ? qt->request.time_group_options : "" , options_buffer , resampling_buffer , tier_buffer ); else if(qt->request.host && qt->request.rca && qt->request.ria && qt->request.rma) snprintfz(qt->id, MAX_QUERY_TARGET_ID_LENGTH, "metric://hosts:%s/context:%s/instance:%s/dimension:%s/after:%lld/before:%lld/points:%zu/group:%s%s/options:%s%s%s" , rrdhost_hostname(qt->request.host) , rrdcontext_acquired_id(qt->request.rca) , rrdinstance_acquired_id(qt->request.ria) , rrdmetric_acquired_id(qt->request.rma) , (long long)qt->request.after , (long long)qt->request.before , qt->request.points , time_grouping_tostring(qt->request.time_group_method) , qt->request.time_group_options ? qt->request.time_group_options : "" , options_buffer , resampling_buffer , tier_buffer ); else if(qt->request.version >= 2) snprintfz(qt->id, MAX_QUERY_TARGET_ID_LENGTH, "data_v2://scope_nodes:%s/scope_contexts:%s/nodes:%s/contexts:%s/instances:%s/labels:%s/dimensions:%s/after:%lld/before:%lld/points:%zu/time_group:%s%s/options:%s%s%s" , qt->request.scope_nodes ? qt->request.scope_nodes : "*" , qt->request.scope_contexts ? qt->request.scope_contexts : "*" , qt->request.nodes ? qt->request.nodes : "*" , (qt->request.contexts) ? qt->request.contexts : "*" , (qt->request.instances) ? qt->request.instances : "*" , (qt->request.labels) ? qt->request.labels : "*" , (qt->request.dimensions) ? qt->request.dimensions : "*" , (long long)qt->request.after , (long long)qt->request.before , qt->request.points , time_grouping_tostring(qt->request.time_group_method) , qt->request.time_group_options ? qt->request.time_group_options : "" , options_buffer , resampling_buffer , tier_buffer ); else snprintfz(qt->id, MAX_QUERY_TARGET_ID_LENGTH, "context://hosts:%s/contexts:%s/instances:%s/dimensions:%s/after:%lld/before:%lld/points:%zu/group:%s%s/options:%s%s%s" , (qt->request.host) ? rrdhost_hostname(qt->request.host) : ((qt->request.nodes) ? qt->request.nodes : "*") , (qt->request.contexts) ? qt->request.contexts : "*" , (qt->request.instances) ? qt->request.instances : "*" , (qt->request.dimensions) ? qt->request.dimensions : "*" , (long long)qt->request.after , (long long)qt->request.before , qt->request.points , time_grouping_tostring(qt->request.time_group_method) , qt->request.time_group_options ? qt->request.time_group_options : "" , options_buffer , resampling_buffer , tier_buffer ); json_fix_string(qt->id); } QUERY_TARGET *query_target_create(QUERY_TARGET_REQUEST *qtr) { if(!service_running(ABILITY_DATA_QUERIES)) return NULL; QUERY_TARGET *qt = query_target_get(); if(!qtr->received_ut) qtr->received_ut = now_monotonic_usec(); qt->timings.received_ut = qtr->received_ut; if(qtr->nodes && !qtr->scope_nodes) qtr->scope_nodes = qtr->nodes; if(qtr->contexts && !qtr->scope_contexts) qtr->scope_contexts = qtr->contexts; memset(&qt->db, 0, sizeof(qt->db)); qt->query_points = STORAGE_POINT_UNSET; // copy the request into query_thread_target qt->request = *qtr; query_target_generate_name(qt); qt->window.after = qt->request.after; qt->window.before = qt->request.before; qt->window.options = qt->request.options; if(query_target_has_percentage_of_instance(qt)) qt->window.options &= ~RRDR_OPTION_PERCENTAGE; rrdr_relative_window_to_absolute(&qt->window.after, &qt->window.before, &qt->window.now); // prepare our local variables - we need these across all these functions QUERY_TARGET_LOCALS qtl = { .qt = qt, .start_s = now_realtime_sec(), .st = qt->request.st, .scope_nodes = qt->request.scope_nodes, .scope_contexts = qt->request.scope_contexts, .nodes = qt->request.nodes, .contexts = qt->request.contexts, .instances = qt->request.instances, .dimensions = qt->request.dimensions, .chart_label_key = qt->request.chart_label_key, .labels = qt->request.labels, .alerts = qt->request.alerts, }; RRDHOST *host = qt->request.host; // prepare all the patterns qt->nodes.scope_pattern = string_to_simple_pattern(qtl.scope_nodes); qt->nodes.pattern = string_to_simple_pattern(qtl.nodes); qt->contexts.pattern = string_to_simple_pattern(qtl.contexts); qt->contexts.scope_pattern = string_to_simple_pattern(qtl.scope_contexts); qt->instances.pattern = string_to_simple_pattern(qtl.instances); qt->query.pattern = string_to_simple_pattern(qtl.dimensions); qt->instances.chart_label_key_pattern = string_to_simple_pattern(qtl.chart_label_key); qt->instances.labels_pattern = string_to_simple_pattern(qtl.labels); qt->instances.alerts_pattern = string_to_simple_pattern(qtl.alerts); qtl.match_ids = qt->request.options & RRDR_OPTION_MATCH_IDS; qtl.match_names = qt->request.options & RRDR_OPTION_MATCH_NAMES; if(likely(!qtl.match_ids && !qtl.match_names)) qtl.match_ids = qtl.match_names = true; // verify that the chart belongs to the host we are interested if(qtl.st) { if (!host) { // It is NULL, set it ourselves. host = qtl.st->rrdhost; } else if (unlikely(host != qtl.st->rrdhost)) { // Oops! A different host! error("QUERY TARGET: RRDSET '%s' given does not belong to host '%s'. Switching query host to '%s'", rrdset_name(qtl.st), rrdhost_hostname(host), rrdhost_hostname(qtl.st->rrdhost)); host = qtl.st->rrdhost; } } if(host) { if(host->node_id) uuid_unparse_lower(*host->node_id, qtl.host_node_id_str); else qtl.host_node_id_str[0] = '\0'; // single host query qt->versions.contexts_hard_hash = dictionary_version(host->rrdctx.contexts); qt->versions.contexts_soft_hash = dictionary_version(host->rrdctx.hub_queue); qt->versions.alerts_hard_hash = dictionary_version(host->rrdcalc_root_index); qt->versions.alerts_soft_hash = __atomic_load_n(&host->health_transitions, __ATOMIC_RELAXED); query_node_add(&qtl, host, true); qtl.nodes = rrdhost_hostname(host); } else query_scope_foreach_host(qt->nodes.scope_pattern, qt->nodes.pattern, query_node_add, &qtl, &qt->versions, qtl.host_node_id_str); // we need the available db retention for this call // so it has to be done last query_target_calculate_window(qt); qt->timings.preprocessed_ut = now_monotonic_usec(); return qt; } ssize_t weights_foreach_rrdmetric_in_context(RRDCONTEXT_ACQUIRED *rca, SIMPLE_PATTERN *instances_sp, SIMPLE_PATTERN *chart_label_key_sp, SIMPLE_PATTERN *labels_sp, SIMPLE_PATTERN *alerts_sp, SIMPLE_PATTERN *dimensions_sp, bool match_ids, bool match_names, size_t version, weights_add_metric_t cb, void *data ) { RRDCONTEXT *rc = rrdcontext_acquired_value(rca); if(!rc || rrd_flag_is_deleted(rc)) return 0; char host_node_id_str[UUID_STR_LEN] = ""; bool proceed = true; ssize_t count = 0; RRDINSTANCE *ri; dfe_start_read(rc->rrdinstances, ri) { if(rrd_flag_is_deleted(ri)) continue; RRDINSTANCE_ACQUIRED *ria = (RRDINSTANCE_ACQUIRED *) ri_dfe.item; if(instances_sp) { QUERY_INSTANCE qi = { .ria = ria, }; SIMPLE_PATTERN_RESULT ret = query_instance_matches(&qi, ri, instances_sp, match_ids, match_names, version, host_node_id_str); qi.ria = NULL; query_instance_release(&qi); if (ret != SP_MATCHED_POSITIVE) continue; } if(!query_instance_matches_labels(ri, chart_label_key_sp, labels_sp)) continue; if(alerts_sp && !query_target_match_alert_pattern(ria, alerts_sp)) continue; dfe_unlock(ri); RRDMETRIC *rm; dfe_start_read(ri->rrdmetrics, rm) { if(rrd_flag_is_deleted(rm)) continue; if(dimensions_sp) { SIMPLE_PATTERN_RESULT ret = SP_NOT_MATCHED; if (match_ids) ret = simple_pattern_matches_string_extract(dimensions_sp, rm->id, NULL, 0); if (ret == SP_NOT_MATCHED && match_names && (rm->name != rm->id || !match_ids)) ret = simple_pattern_matches_string_extract(dimensions_sp, rm->name, NULL, 0); if(ret != SP_MATCHED_POSITIVE) continue; } dfe_unlock(rm); RRDMETRIC_ACQUIRED *rma = (RRDMETRIC_ACQUIRED *)rm_dfe.item; ssize_t ret = cb(data, rc->rrdhost, rca, ria, rma); if(ret < 0) { proceed = false; break; } count += ret; } dfe_done(rm); if(unlikely(!proceed)) break; } dfe_done(ri); return count; }