diff options
Diffstat (limited to 'database/rrd.h')
| -rw-r--r-- | database/rrd.h | 1704 |
1 files changed, 1704 insertions, 0 deletions
diff --git a/database/rrd.h b/database/rrd.h new file mode 100644 index 00000000..5f4bee03 --- /dev/null +++ b/database/rrd.h @@ -0,0 +1,1704 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef NETDATA_RRD_H +#define NETDATA_RRD_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + +#include "libnetdata/libnetdata.h" + +// non-existing structs instead of voids +// to enable type checking at compile time +typedef struct storage_instance STORAGE_INSTANCE; +typedef struct storage_metric_handle STORAGE_METRIC_HANDLE; +typedef struct storage_alignment STORAGE_METRICS_GROUP; + +// forward typedefs +typedef struct rrdhost RRDHOST; +typedef struct rrddim RRDDIM; +typedef struct rrdset RRDSET; +typedef struct rrdcalc RRDCALC; +typedef struct rrdcalctemplate RRDCALCTEMPLATE; +typedef struct alarm_entry ALARM_ENTRY; + +typedef struct rrdlabels RRDLABELS; + +typedef struct rrdfamily_acquired RRDFAMILY_ACQUIRED; +typedef struct rrdvar_acquired RRDVAR_ACQUIRED; +typedef struct rrdsetvar_acquired RRDSETVAR_ACQUIRED; +typedef struct rrdcalc_acquired RRDCALC_ACQUIRED; + +typedef struct rrdhost_acquired RRDHOST_ACQUIRED; +typedef struct rrdset_acquired RRDSET_ACQUIRED; +typedef struct rrddim_acquired RRDDIM_ACQUIRED; + +typedef struct ml_host rrd_ml_host_t; +typedef struct ml_chart rrd_ml_chart_t; +typedef struct ml_dimension rrd_ml_dimension_t; + +typedef enum __attribute__ ((__packed__)) { + QUERY_SOURCE_UNKNOWN = 0, + QUERY_SOURCE_API_DATA, + QUERY_SOURCE_API_BADGE, + QUERY_SOURCE_API_WEIGHTS, + QUERY_SOURCE_HEALTH, + QUERY_SOURCE_ML, + QUERY_SOURCE_UNITTEST, +} QUERY_SOURCE; + +typedef enum __attribute__ ((__packed__)) storage_priority { + STORAGE_PRIORITY_INTERNAL_DBENGINE = 0, + STORAGE_PRIORITY_INTERNAL_QUERY_PREP, + + // query priorities + STORAGE_PRIORITY_HIGH, + STORAGE_PRIORITY_NORMAL, + STORAGE_PRIORITY_LOW, + STORAGE_PRIORITY_BEST_EFFORT, + + // synchronous query, not to be dispatched to workers or queued + STORAGE_PRIORITY_SYNCHRONOUS, + + STORAGE_PRIORITY_INTERNAL_MAX_DONT_USE, +} STORAGE_PRIORITY; + +// forward declarations +struct rrddim_tier; + +#ifdef ENABLE_DBENGINE +struct rrdeng_page_descr; +struct rrdengine_instance; +struct pg_cache_page_index; +#endif + +// ---------------------------------------------------------------------------- +// memory mode + +typedef enum __attribute__ ((__packed__)) rrd_memory_mode { + RRD_MEMORY_MODE_NONE = 0, + RRD_MEMORY_MODE_RAM = 1, + RRD_MEMORY_MODE_MAP = 2, + RRD_MEMORY_MODE_SAVE = 3, + RRD_MEMORY_MODE_ALLOC = 4, + RRD_MEMORY_MODE_DBENGINE = 5, + + // this is 8-bit +} RRD_MEMORY_MODE; + +#define RRD_MEMORY_MODE_NONE_NAME "none" +#define RRD_MEMORY_MODE_RAM_NAME "ram" +#define RRD_MEMORY_MODE_MAP_NAME "map" +#define RRD_MEMORY_MODE_SAVE_NAME "save" +#define RRD_MEMORY_MODE_ALLOC_NAME "alloc" +#define RRD_MEMORY_MODE_DBENGINE_NAME "dbengine" + +extern RRD_MEMORY_MODE default_rrd_memory_mode; + +const char *rrd_memory_mode_name(RRD_MEMORY_MODE id); +RRD_MEMORY_MODE rrd_memory_mode_id(const char *name); + +struct ml_metrics_statistics { + size_t anomalous; + size_t normal; + size_t trained; + size_t pending; + size_t silenced; +}; + +#include "daemon/common.h" +#include "web/api/queries/query.h" +#include "web/api/queries/rrdr.h" +#include "rrdvar.h" +#include "rrdsetvar.h" +#include "rrddimvar.h" +#include "rrdcalc.h" +#include "rrdcalctemplate.h" +#include "rrdlabels.h" +#include "streaming/rrdpush.h" +#include "aclk/aclk_rrdhost_state.h" +#include "sqlite/sqlite_health.h" + +typedef struct storage_query_handle STORAGE_QUERY_HANDLE; + +typedef enum __attribute__ ((__packed__)) { + STORAGE_ENGINE_BACKEND_RRDDIM = 1, + STORAGE_ENGINE_BACKEND_DBENGINE = 2, +} STORAGE_ENGINE_BACKEND; + +#define is_valid_backend(backend) ((backend) >= STORAGE_ENGINE_BACKEND_RRDDIM && (backend) <= STORAGE_ENGINE_BACKEND_DBENGINE) + +// iterator state for RRD dimension data queries +struct storage_engine_query_handle { + time_t start_time_s; + time_t end_time_s; + STORAGE_PRIORITY priority; + STORAGE_ENGINE_BACKEND backend; + STORAGE_QUERY_HANDLE *handle; +}; + +// ---------------------------------------------------------------------------- +// chart types + +typedef enum __attribute__ ((__packed__)) rrdset_type { + RRDSET_TYPE_LINE = 0, + RRDSET_TYPE_AREA = 1, + RRDSET_TYPE_STACKED = 2, +} RRDSET_TYPE; + +#define RRDSET_TYPE_LINE_NAME "line" +#define RRDSET_TYPE_AREA_NAME "area" +#define RRDSET_TYPE_STACKED_NAME "stacked" + +RRDSET_TYPE rrdset_type_id(const char *name); +const char *rrdset_type_name(RRDSET_TYPE chart_type); + +#include "contexts/rrdcontext.h" + +extern bool unittest_running; +extern bool dbengine_enabled; +extern size_t storage_tiers; +extern bool use_direct_io; +extern size_t storage_tiers_grouping_iterations[RRD_STORAGE_TIERS]; + +typedef enum __attribute__ ((__packed__)) { + RRD_BACKFILL_NONE = 0, + RRD_BACKFILL_FULL, + RRD_BACKFILL_NEW +} RRD_BACKFILL; + +extern RRD_BACKFILL storage_tiers_backfill[RRD_STORAGE_TIERS]; + +#define UPDATE_EVERY 1 +#define UPDATE_EVERY_MAX 3600 + +#define RRD_DEFAULT_HISTORY_ENTRIES 3600 +#define RRD_HISTORY_ENTRIES_MAX (86400*365) + +extern int default_rrd_update_every; +extern int default_rrd_history_entries; +extern int gap_when_lost_iterations_above; +extern time_t rrdset_free_obsolete_time_s; + +#if defined(ENV32BIT) +#define MIN_LIBUV_WORKER_THREADS 8 +#define MAX_LIBUV_WORKER_THREADS 128 +#define RESERVED_LIBUV_WORKER_THREADS 3 +#else +#define MIN_LIBUV_WORKER_THREADS 16 +#define MAX_LIBUV_WORKER_THREADS 1024 +#define RESERVED_LIBUV_WORKER_THREADS 6 +#endif + +extern int libuv_worker_threads; +extern bool ieee754_doubles; + +#define RRD_ID_LENGTH_MAX 1000 + +typedef long long total_number; +#define TOTAL_NUMBER_FORMAT "%lld" + +// ---------------------------------------------------------------------------- +// algorithms types + +typedef enum __attribute__ ((__packed__)) rrd_algorithm { + RRD_ALGORITHM_ABSOLUTE = 0, + RRD_ALGORITHM_INCREMENTAL = 1, + RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL = 2, + RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL = 3, + + // this is 8-bit +} RRD_ALGORITHM; + +#define RRD_ALGORITHM_ABSOLUTE_NAME "absolute" +#define RRD_ALGORITHM_INCREMENTAL_NAME "incremental" +#define RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL_NAME "percentage-of-incremental-row" +#define RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL_NAME "percentage-of-absolute-row" + +RRD_ALGORITHM rrd_algorithm_id(const char *name); +const char *rrd_algorithm_name(RRD_ALGORITHM algorithm); + +// ---------------------------------------------------------------------------- +// RRD FAMILY + +const RRDFAMILY_ACQUIRED *rrdfamily_add_and_acquire(RRDHOST *host, const char *id); +void rrdfamily_release(RRDHOST *host, const RRDFAMILY_ACQUIRED *rfa); +void rrdfamily_index_init(RRDHOST *host); +void rrdfamily_index_destroy(RRDHOST *host); +DICTIONARY *rrdfamily_rrdvars_dict(const RRDFAMILY_ACQUIRED *rf); + + +// ---------------------------------------------------------------------------- +// flags & options + +// options are permanent configuration options (no atomics to alter/access them) +typedef enum __attribute__ ((__packed__)) rrddim_options { + RRDDIM_OPTION_NONE = 0, + RRDDIM_OPTION_HIDDEN = (1 << 0), // this dimension will not be offered to callers + RRDDIM_OPTION_DONT_DETECT_RESETS_OR_OVERFLOWS = (1 << 1), // do not offer RESET or OVERFLOW info to callers + RRDDIM_OPTION_BACKFILLED_HIGH_TIERS = (1 << 2), // when set, we have backfilled higher tiers + RRDDIM_OPTION_UPDATED = (1 << 3), // single-threaded collector updated flag + + // this is 8-bit +} RRDDIM_OPTIONS; + +#define rrddim_option_check(rd, option) ((rd)->collector.options & (option)) +#define rrddim_option_set(rd, option) (rd)->collector.options |= (option) +#define rrddim_option_clear(rd, option) (rd)->collector.options &= ~(option) + +// flags are runtime changing status flags (atomics are required to alter/access them) +typedef enum __attribute__ ((__packed__)) rrddim_flags { + RRDDIM_FLAG_NONE = 0, + RRDDIM_FLAG_PENDING_HEALTH_INITIALIZATION = (1 << 0), + + RRDDIM_FLAG_OBSOLETE = (1 << 1), // this is marked by the collector/module as obsolete + // No new values have been collected for this dimension since agent start, or it was marked RRDDIM_FLAG_OBSOLETE at + // least rrdset_free_obsolete_time seconds ago. + RRDDIM_FLAG_ARCHIVED = (1 << 2), + RRDDIM_FLAG_METADATA_UPDATE = (1 << 3), // Metadata needs to go to the database + + RRDDIM_FLAG_META_HIDDEN = (1 << 4), // Status of hidden option in the metadata database + RRDDIM_FLAG_ML_MODEL_LOAD = (1 << 5), // Do ML LOAD for this dimension + + // this is 8 bit +} RRDDIM_FLAGS; + +#define rrddim_flag_get(rd) __atomic_load_n(&((rd)->flags), __ATOMIC_ACQUIRE) +#define rrddim_flag_check(rd, flag) (__atomic_load_n(&((rd)->flags), __ATOMIC_ACQUIRE) & (flag)) +#define rrddim_flag_set(rd, flag) __atomic_or_fetch(&((rd)->flags), (flag), __ATOMIC_RELEASE) +#define rrddim_flag_clear(rd, flag) __atomic_and_fetch(&((rd)->flags), ~(flag), __ATOMIC_RELEASE) + +// ---------------------------------------------------------------------------- +// engine-specific iterator state for dimension data collection +typedef struct storage_collect_handle { + STORAGE_ENGINE_BACKEND backend; +} STORAGE_COLLECT_HANDLE; + +// ---------------------------------------------------------------------------- +// Storage tier data for every dimension + +struct rrddim_tier { + STORAGE_POINT virtual_point; + STORAGE_ENGINE_BACKEND backend; + uint32_t tier_grouping; + time_t next_point_end_time_s; + STORAGE_METRIC_HANDLE *db_metric_handle; // the metric handle inside the database + STORAGE_COLLECT_HANDLE *db_collection_handle; // the data collection handle +}; + +void rrdr_fill_tier_gap_from_smaller_tiers(RRDDIM *rd, size_t tier, time_t now_s); + +// ---------------------------------------------------------------------------- +// RRD DIMENSION - this is a metric + +struct rrddim { + uuid_t metric_uuid; // global UUID for this metric (unique_across hosts) + + // ------------------------------------------------------------------------ + // dimension definition + + STRING *id; // the id of this dimension (for internal identification) + STRING *name; // the name of this dimension (as presented to user) + + RRD_ALGORITHM algorithm; // the algorithm that is applied to add new collected values + RRD_MEMORY_MODE rrd_memory_mode; // the memory mode for this dimension + RRDDIM_FLAGS flags; // run time changing status flags + + int32_t multiplier; // the multiplier of the collected values + int32_t divisor; // the divider of the collected values + + // ------------------------------------------------------------------------ + // operational state members + + struct rrdset *rrdset; + rrd_ml_dimension_t *ml_dimension; // machine learning data about this dimension + + struct { + RRDMETRIC_ACQUIRED *rrdmetric; // the rrdmetric of this dimension + bool collected; + } rrdcontexts; + +#ifdef NETDATA_LOG_COLLECTION_ERRORS + usec_t rrddim_store_metric_last_ut; // the timestamp we last called rrddim_store_metric() + size_t rrddim_store_metric_count; // the rrddim_store_metric() counter + const char *rrddim_store_metric_last_caller; // the name of the function that last called rrddim_store_metric() +#endif + + // ------------------------------------------------------------------------ + // db mode RAM, SAVE, MAP, ALLOC, NONE specifics + // TODO - they should be managed by storage engine + // (RRDDIM_DB_STATE ptr to an undefined structure, and a call to clean this up during destruction) + + struct { + size_t memsize; // the memory allocated for this dimension (without RRDDIM) + void *rd_on_file; // pointer to the header written on disk + storage_number *data; // the array of values + } db; + + // ------------------------------------------------------------------------ + // streaming + + struct { + struct { + uint32_t sent_version; + uint32_t dim_slot; + } sender; + } rrdpush; + + // ------------------------------------------------------------------------ + // data collection members + + struct { + RRDDIM_OPTIONS options; // permanent configuration options + + uint32_t counter; // the number of times we added values to this rrddim + + collected_number collected_value; // the current value, as collected - resets to 0 after being used + collected_number collected_value_max; // the absolute maximum of the collected value + collected_number last_collected_value; // the last value that was collected, after being processed + + struct timeval last_collected_time; // when was this dimension last updated + // this is actual date time we updated the last_collected_value + // THIS IS DIFFERENT FROM THE SAME MEMBER OF RRDSET + + NETDATA_DOUBLE calculated_value; // the current calculated value, after applying the algorithm - resets to zero after being used + NETDATA_DOUBLE last_calculated_value; // the last calculated value processed + + NETDATA_DOUBLE last_stored_value; // the last value as stored in the database (after interpolation) + } collector; + + // ------------------------------------------------------------------------ + + struct rrddim_tier tiers[]; // our tiers of databases +}; + +size_t rrddim_size(void); + +#define rrddim_id(rd) string2str((rd)->id) +#define rrddim_name(rd) string2str((rd) ->name) + +#define rrddim_check_updated(rd) ((rd)->collector.options & RRDDIM_OPTION_UPDATED) +#define rrddim_set_updated(rd) (rd)->collector.options |= RRDDIM_OPTION_UPDATED +#define rrddim_clear_updated(rd) (rd)->collector.options &= ~RRDDIM_OPTION_UPDATED + +// returns the RRDDIM cache filename, or NULL if it does not exist +const char *rrddim_cache_filename(RRDDIM *rd); + +// updated the header with the latest RRDDIM value, for memory mode MAP and SAVE +void rrddim_memory_file_update(RRDDIM *rd); + +// free the memory file structures for memory mode MAP and SAVE +void rrddim_memory_file_free(RRDDIM *rd); + +bool rrddim_memory_load_or_create_map_save(RRDSET *st, RRDDIM *rd, RRD_MEMORY_MODE memory_mode); + +// return the v019 header size of RRDDIM files +size_t rrddim_memory_file_header_size(void); + +void rrddim_memory_file_save(RRDDIM *rd); + +// ------------------------------------------------------------------------ +// DATA COLLECTION STORAGE OPS + +STORAGE_METRICS_GROUP *rrdeng_metrics_group_get(STORAGE_INSTANCE *db_instance, uuid_t *uuid); +STORAGE_METRICS_GROUP *rrddim_metrics_group_get(STORAGE_INSTANCE *db_instance, uuid_t *uuid); +static inline STORAGE_METRICS_GROUP *storage_engine_metrics_group_get(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_INSTANCE *db_instance, uuid_t *uuid) { + internal_fatal(!is_valid_backend(backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_metrics_group_get(db_instance, uuid); +#endif + return rrddim_metrics_group_get(db_instance, uuid); +} + +void rrdeng_metrics_group_release(STORAGE_INSTANCE *db_instance, STORAGE_METRICS_GROUP *smg); +void rrddim_metrics_group_release(STORAGE_INSTANCE *db_instance, STORAGE_METRICS_GROUP *smg); +static inline void storage_engine_metrics_group_release(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_INSTANCE *db_instance, STORAGE_METRICS_GROUP *smg) { + internal_fatal(!is_valid_backend(backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + rrdeng_metrics_group_release(db_instance, smg); + else +#endif + rrddim_metrics_group_release(db_instance, smg); +} + +STORAGE_COLLECT_HANDLE *rrdeng_store_metric_init(STORAGE_METRIC_HANDLE *db_metric_handle, uint32_t update_every, STORAGE_METRICS_GROUP *smg); +STORAGE_COLLECT_HANDLE *rrddim_collect_init(STORAGE_METRIC_HANDLE *db_metric_handle, uint32_t update_every, STORAGE_METRICS_GROUP *smg); +static inline STORAGE_COLLECT_HANDLE *storage_metric_store_init(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_METRIC_HANDLE *db_metric_handle, uint32_t update_every, STORAGE_METRICS_GROUP *smg) { + internal_fatal(!is_valid_backend(backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_store_metric_init(db_metric_handle, update_every, smg); +#endif + return rrddim_collect_init(db_metric_handle, update_every, smg); +} + +void rrdeng_store_metric_next( + STORAGE_COLLECT_HANDLE *collection_handle, usec_t point_in_time_ut, + NETDATA_DOUBLE n, NETDATA_DOUBLE min_value, NETDATA_DOUBLE max_value, + uint16_t count, uint16_t anomaly_count, SN_FLAGS flags); + +void rrddim_collect_store_metric( + STORAGE_COLLECT_HANDLE *collection_handle, usec_t point_in_time_ut, + NETDATA_DOUBLE n, NETDATA_DOUBLE min_value, NETDATA_DOUBLE max_value, + uint16_t count, uint16_t anomaly_count, SN_FLAGS flags); + +static inline void storage_engine_store_metric( + STORAGE_COLLECT_HANDLE *collection_handle, usec_t point_in_time_ut, + NETDATA_DOUBLE n, NETDATA_DOUBLE min_value, NETDATA_DOUBLE max_value, + uint16_t count, uint16_t anomaly_count, SN_FLAGS flags) { + internal_fatal(!is_valid_backend(collection_handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(collection_handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_store_metric_next(collection_handle, point_in_time_ut, + n, min_value, max_value, + count, anomaly_count, flags); +#endif + return rrddim_collect_store_metric(collection_handle, point_in_time_ut, + n, min_value, max_value, + count, anomaly_count, flags); +} + +uint64_t rrdeng_disk_space_max(STORAGE_INSTANCE *db_instance); +static inline uint64_t storage_engine_disk_space_max(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_INSTANCE *db_instance __maybe_unused) { +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_disk_space_max(db_instance); +#endif + + return 0; +} + +uint64_t rrdeng_disk_space_used(STORAGE_INSTANCE *db_instance); +static inline uint64_t storage_engine_disk_space_used(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_INSTANCE *db_instance __maybe_unused) { +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_disk_space_used(db_instance); +#endif + + // TODO - calculate the total host disk space for memory mode save and map + return 0; +} + +time_t rrdeng_global_first_time_s(STORAGE_INSTANCE *db_instance); +static inline time_t storage_engine_global_first_time_s(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_INSTANCE *db_instance __maybe_unused) { +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_global_first_time_s(db_instance); +#endif + + return now_realtime_sec() - (time_t)(default_rrd_history_entries * default_rrd_update_every); +} + +size_t rrdeng_currently_collected_metrics(STORAGE_INSTANCE *db_instance); +static inline size_t storage_engine_collected_metrics(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_INSTANCE *db_instance __maybe_unused) { +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_currently_collected_metrics(db_instance); +#endif + + // TODO - calculate the total host disk space for memory mode save and map + return 0; +} + +void rrdeng_store_metric_flush_current_page(STORAGE_COLLECT_HANDLE *collection_handle); +void rrddim_store_metric_flush(STORAGE_COLLECT_HANDLE *collection_handle); +static inline void storage_engine_store_flush(STORAGE_COLLECT_HANDLE *collection_handle) { + if(unlikely(!collection_handle)) + return; + + internal_fatal(!is_valid_backend(collection_handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(collection_handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + rrdeng_store_metric_flush_current_page(collection_handle); + else +#endif + rrddim_store_metric_flush(collection_handle); +} + +int rrdeng_store_metric_finalize(STORAGE_COLLECT_HANDLE *collection_handle); +int rrddim_collect_finalize(STORAGE_COLLECT_HANDLE *collection_handle); +// a finalization function to run after collection is over +// returns 1 if it's safe to delete the dimension +static inline int storage_engine_store_finalize(STORAGE_COLLECT_HANDLE *collection_handle) { + internal_fatal(!is_valid_backend(collection_handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(collection_handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_store_metric_finalize(collection_handle); +#endif + + return rrddim_collect_finalize(collection_handle); +} + +void rrdeng_store_metric_change_collection_frequency(STORAGE_COLLECT_HANDLE *collection_handle, int update_every); +void rrddim_store_metric_change_collection_frequency(STORAGE_COLLECT_HANDLE *collection_handle, int update_every); +static inline void storage_engine_store_change_collection_frequency(STORAGE_COLLECT_HANDLE *collection_handle, int update_every) { + internal_fatal(!is_valid_backend(collection_handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(collection_handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + rrdeng_store_metric_change_collection_frequency(collection_handle, update_every); + else +#endif + rrddim_store_metric_change_collection_frequency(collection_handle, update_every); +} + + +// ---------------------------------------------------------------------------- +// STORAGE ENGINE QUERY OPS + +time_t rrdeng_metric_oldest_time(STORAGE_METRIC_HANDLE *db_metric_handle); +time_t rrddim_query_oldest_time_s(STORAGE_METRIC_HANDLE *db_metric_handle); +static inline time_t storage_engine_oldest_time_s(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_METRIC_HANDLE *db_metric_handle) { + internal_fatal(!is_valid_backend(backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_metric_oldest_time(db_metric_handle); +#endif + return rrddim_query_oldest_time_s(db_metric_handle); +} + +time_t rrdeng_metric_latest_time(STORAGE_METRIC_HANDLE *db_metric_handle); +time_t rrddim_query_latest_time_s(STORAGE_METRIC_HANDLE *db_metric_handle); +static inline time_t storage_engine_latest_time_s(STORAGE_ENGINE_BACKEND backend __maybe_unused, STORAGE_METRIC_HANDLE *db_metric_handle) { + internal_fatal(!is_valid_backend(backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_metric_latest_time(db_metric_handle); +#endif + return rrddim_query_latest_time_s(db_metric_handle); +} + +void rrdeng_load_metric_init( + STORAGE_METRIC_HANDLE *db_metric_handle, struct storage_engine_query_handle *rrddim_handle, + time_t start_time_s, time_t end_time_s, STORAGE_PRIORITY priority); + +void rrddim_query_init( + STORAGE_METRIC_HANDLE *db_metric_handle, struct storage_engine_query_handle *handle, + time_t start_time_s, time_t end_time_s, STORAGE_PRIORITY priority); + +static inline void storage_engine_query_init( + STORAGE_ENGINE_BACKEND backend __maybe_unused, + STORAGE_METRIC_HANDLE *db_metric_handle, struct storage_engine_query_handle *handle, + time_t start_time_s, time_t end_time_s, STORAGE_PRIORITY priority) { + internal_fatal(!is_valid_backend(backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + rrdeng_load_metric_init(db_metric_handle, handle, start_time_s, end_time_s, priority); + else +#endif + rrddim_query_init(db_metric_handle, handle, start_time_s, end_time_s, priority); +} + +STORAGE_POINT rrdeng_load_metric_next(struct storage_engine_query_handle *rrddim_handle); +STORAGE_POINT rrddim_query_next_metric(struct storage_engine_query_handle *handle); +static inline STORAGE_POINT storage_engine_query_next_metric(struct storage_engine_query_handle *handle) { + internal_fatal(!is_valid_backend(handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_load_metric_next(handle); +#endif + return rrddim_query_next_metric(handle); +} + +int rrdeng_load_metric_is_finished(struct storage_engine_query_handle *rrddim_handle); +int rrddim_query_is_finished(struct storage_engine_query_handle *handle); +static inline int storage_engine_query_is_finished(struct storage_engine_query_handle *handle) { + internal_fatal(!is_valid_backend(handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_load_metric_is_finished(handle); +#endif + return rrddim_query_is_finished(handle); +} + +void rrdeng_load_metric_finalize(struct storage_engine_query_handle *rrddim_handle); +void rrddim_query_finalize(struct storage_engine_query_handle *handle); +static inline void storage_engine_query_finalize(struct storage_engine_query_handle *handle) { + internal_fatal(!is_valid_backend(handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + rrdeng_load_metric_finalize(handle); + else +#endif + rrddim_query_finalize(handle); +} + +time_t rrdeng_load_align_to_optimal_before(struct storage_engine_query_handle *rrddim_handle); +time_t rrddim_query_align_to_optimal_before(struct storage_engine_query_handle *rrddim_handle); +static inline time_t storage_engine_align_to_optimal_before(struct storage_engine_query_handle *handle) { + internal_fatal(!is_valid_backend(handle->backend), "STORAGE: invalid backend"); + +#ifdef ENABLE_DBENGINE + if(likely(handle->backend == STORAGE_ENGINE_BACKEND_DBENGINE)) + return rrdeng_load_align_to_optimal_before(handle); +#endif + return rrddim_query_align_to_optimal_before(handle); +} + +// ------------------------------------------------------------------------ +// function pointers for all APIs provided by a storage engine +typedef struct storage_engine_api { + // metric management + STORAGE_METRIC_HANDLE *(*metric_get)(STORAGE_INSTANCE *instance, uuid_t *uuid); + STORAGE_METRIC_HANDLE *(*metric_get_or_create)(RRDDIM *rd, STORAGE_INSTANCE *instance); + void (*metric_release)(STORAGE_METRIC_HANDLE *); + STORAGE_METRIC_HANDLE *(*metric_dup)(STORAGE_METRIC_HANDLE *); + bool (*metric_retention_by_uuid)(STORAGE_INSTANCE *db_instance, uuid_t *uuid, time_t *first_entry_s, time_t *last_entry_s); +} STORAGE_ENGINE_API; + +typedef struct storage_engine { + STORAGE_ENGINE_BACKEND backend; + RRD_MEMORY_MODE id; + const char* name; + STORAGE_ENGINE_API api; +} STORAGE_ENGINE; + +STORAGE_ENGINE* storage_engine_get(RRD_MEMORY_MODE mmode); +STORAGE_ENGINE* storage_engine_find(const char* name); + +// ---------------------------------------------------------------------------- +// these loop macros make sure the linked list is accessed with the right lock + +#define rrddim_foreach_read(rd, st) \ + dfe_start_read((st)->rrddim_root_index, rd) +#define rrddim_foreach_done(rd) \ + dfe_done(rd) + +// ---------------------------------------------------------------------------- +// RRDSET - this is a chart + +// use this for configuration flags, not for state control +// flags are set/unset in a manner that is not thread safe +// and may lead to missing information. + +typedef enum __attribute__ ((__packed__)) rrdset_flags { + RRDSET_FLAG_DETAIL = (1 << 1), // if set, the data set should be considered as a detail of another + // (the master data set should be the one that has the same family and is not detail) + RRDSET_FLAG_DEBUG = (1 << 2), // enables or disables debugging for a chart + RRDSET_FLAG_OBSOLETE = (1 << 3), // this is marked by the collector/module as obsolete + RRDSET_FLAG_EXPORTING_SEND = (1 << 4), // if set, this chart should be sent to Prometheus web API and external databases + RRDSET_FLAG_EXPORTING_IGNORE = (1 << 5), // if set, this chart should not be sent to Prometheus web API and external databases + + RRDSET_FLAG_UPSTREAM_SEND = (1 << 6), // if set, this chart should be sent upstream (streaming) + RRDSET_FLAG_UPSTREAM_IGNORE = (1 << 7), // if set, this chart should not be sent upstream (streaming) + + RRDSET_FLAG_STORE_FIRST = (1 << 8), // if set, do not eliminate the first collection during interpolation + RRDSET_FLAG_HETEROGENEOUS = (1 << 9), // if set, the chart is not homogeneous (dimensions in it have multiple algorithms, multipliers or dividers) + RRDSET_FLAG_HOMOGENEOUS_CHECK = (1 << 10), // if set, the chart should be checked to determine if the dimensions are homogeneous + RRDSET_FLAG_HIDDEN = (1 << 11), // if set, do not show this chart on the dashboard, but use it for exporting + RRDSET_FLAG_SYNC_CLOCK = (1 << 12), // if set, microseconds on next data collection will be ignored (the chart will be synced to now) + RRDSET_FLAG_OBSOLETE_DIMENSIONS = (1 << 13), // this is marked by the collector/module when a chart has obsolete dimensions + + RRDSET_FLAG_METADATA_UPDATE = (1 << 14), // Mark that metadata needs to be stored + RRDSET_FLAG_ANOMALY_DETECTION = (1 << 15), // flag to identify anomaly detection charts. + RRDSET_FLAG_INDEXED_ID = (1 << 16), // the rrdset is indexed by its id + RRDSET_FLAG_INDEXED_NAME = (1 << 17), // the rrdset is indexed by its name + + RRDSET_FLAG_PENDING_HEALTH_INITIALIZATION = (1 << 18), + + RRDSET_FLAG_SENDER_REPLICATION_IN_PROGRESS = (1 << 19), // the sending side has replication in progress + RRDSET_FLAG_SENDER_REPLICATION_FINISHED = (1 << 20), // the sending side has completed replication + RRDSET_FLAG_RECEIVER_REPLICATION_IN_PROGRESS = (1 << 21), // the receiving side has replication in progress + RRDSET_FLAG_RECEIVER_REPLICATION_FINISHED = (1 << 22), // the receiving side has completed replication + + RRDSET_FLAG_UPSTREAM_SEND_VARIABLES = (1 << 23), // a custom variable has been updated and needs to be exposed to parent + + RRDSET_FLAG_COLLECTION_FINISHED = (1 << 24), // when set, data collection is not available for this chart + + RRDSET_FLAG_HAS_RRDCALC_LINKED = (1 << 25), // this chart has at least one rrdcal linked +} RRDSET_FLAGS; + +#define rrdset_flag_get(st) __atomic_load_n(&((st)->flags), __ATOMIC_ACQUIRE) +#define rrdset_flag_check(st, flag) (__atomic_load_n(&((st)->flags), __ATOMIC_ACQUIRE) & (flag)) +#define rrdset_flag_set(st, flag) __atomic_or_fetch(&((st)->flags), flag, __ATOMIC_RELEASE) +#define rrdset_flag_clear(st, flag) __atomic_and_fetch(&((st)->flags), ~(flag), __ATOMIC_RELEASE) + +#define rrdset_is_replicating(st) (rrdset_flag_check(st, RRDSET_FLAG_SENDER_REPLICATION_IN_PROGRESS|RRDSET_FLAG_RECEIVER_REPLICATION_IN_PROGRESS) \ + && !rrdset_flag_check(st, RRDSET_FLAG_SENDER_REPLICATION_FINISHED|RRDSET_FLAG_RECEIVER_REPLICATION_FINISHED)) + +struct pluginsd_rrddim { + RRDDIM_ACQUIRED *rda; + RRDDIM *rd; + const char *id; +}; + +struct rrdset { + uuid_t chart_uuid; // the global UUID for this chart + + // ------------------------------------------------------------------------ + // chart configuration + + struct { + STRING *type; // the type of {type}.{id} + STRING *id; // the id of {type}.{id} + STRING *name; // the name of {type}.{name} + } parts; + + STRING *id; // the unique ID of the rrdset as {type}.{id} + STRING *name; // the unique name of the rrdset as {type}.{name} + STRING *family; // grouping sets under the same family + STRING *title; // title shown to user + STRING *units; // units of measurement + STRING *context; // the template of this data set + STRING *plugin_name; // the name of the plugin that generated this + STRING *module_name; // the name of the plugin module that generated this + + int32_t priority; // the sorting priority of this chart + int32_t update_every; // data collection frequency + + RRDLABELS *rrdlabels; // chart labels + DICTIONARY *rrdsetvar_root_index; // chart variables + DICTIONARY *rrddimvar_root_index; // dimension variables + // we use this dictionary to manage their allocation + + uint32_t version; // the metadata version (auto-increment) + + RRDSET_TYPE chart_type; // line, area, stacked + + // ------------------------------------------------------------------------ + // operational state members + + RRDSET_FLAGS flags; // flags + RRD_MEMORY_MODE rrd_memory_mode; // the db mode of this rrdset + + DICTIONARY *rrddim_root_index; // dimensions index + + rrd_ml_chart_t *ml_chart; + + STORAGE_METRICS_GROUP *storage_metrics_groups[RRD_STORAGE_TIERS]; + + // ------------------------------------------------------------------------ + // linking to siblings and parents + + RRDHOST *rrdhost; // pointer to RRDHOST this chart belongs to + + struct { + RRDINSTANCE_ACQUIRED *rrdinstance; // the rrdinstance of this chart + RRDCONTEXT_ACQUIRED *rrdcontext; // the rrdcontext this chart belongs to + bool collected; + } rrdcontexts; + + // ------------------------------------------------------------------------ + // data collection members + + SPINLOCK data_collection_lock; + + uint32_t counter; // the number of times we added values to this database + uint32_t counter_done; // the number of times rrdset_done() has been called + + time_t last_accessed_time_s; // the last time this RRDSET has been accessed + usec_t usec_since_last_update; // the time in microseconds since the last collection of data + + struct timeval last_updated; // when this data set was last updated (updated every time the rrd_stats_done() function) + struct timeval last_collected_time; // when did this data set last collected values + + size_t rrdlabels_last_saved_version; + + DICTIONARY *functions_view; // collector functions this rrdset supports, can be NULL + + // ------------------------------------------------------------------------ + // data collection - streaming to parents, temp variables + + struct { + struct { + uint32_t sent_version; + uint32_t chart_slot; + uint32_t dim_last_slot_used; + + time_t resync_time_s; // the timestamp up to which we should resync clock upstream + } sender; + } rrdpush; + + // ------------------------------------------------------------------------ + // db mode SAVE, MAP specifics + // TODO - they should be managed by storage engine + // (RRDSET_DB_STATE ptr to an undefined structure, and a call to clean this up during destruction) + + struct { + char *cache_dir; // the directory to store dimensions + void *st_on_file; // compatibility with V019 RRDSET files + + int32_t entries; // total number of entries in the data set + + int32_t current_entry; // the entry that is currently being updated + // it goes around in a round-robin fashion + } db; + + // ------------------------------------------------------------------------ + // exporting to 3rd party time-series members + // TODO - they should be managed by exporting engine + // (RRDSET_EXPORTING_STATE ptr to an undefined structure, and a call to clean this up during destruction) + + RRDSET_FLAGS *exporting_flags; // array of flags for exporting connector instances + + // ------------------------------------------------------------------------ + // health monitoring members + // TODO - they should be managed by health + // (RRDSET_HEALTH_STATE ptr to an undefined structure, and a call to clean this up during destruction) + + NETDATA_DOUBLE green; // green threshold for this chart + NETDATA_DOUBLE red; // red threshold for this chart + + DICTIONARY *rrdvars; // RRDVAR index for this chart + const RRDFAMILY_ACQUIRED *rrdfamily; // pointer to RRDFAMILY dictionary item, this chart belongs to + + struct { + RW_SPINLOCK spinlock; // protection for RRDCALC *base + RRDCALC *base; // double linked list of RRDCALC related to this RRDSET + } alerts; + + struct { + SPINLOCK spinlock; // used only for cleanup + pid_t collector_tid; + bool dims_with_slots; + bool set; + uint32_t pos; + int32_t last_slot; + uint32_t size; + struct pluginsd_rrddim *prd_array; + } pluginsd; + +#ifdef NETDATA_LOG_REPLICATION_REQUESTS + struct { + bool log_next_data_collection; + bool start_streaming; + time_t after; + time_t before; + } replay; +#endif // NETDATA_LOG_REPLICATION_REQUESTS +}; + +#define rrdset_plugin_name(st) string2str((st)->plugin_name) +#define rrdset_module_name(st) string2str((st)->module_name) +#define rrdset_units(st) string2str((st)->units) +#define rrdset_parts_type(st) string2str((st)->parts.type) +#define rrdset_family(st) string2str((st)->family) +#define rrdset_title(st) string2str((st)->title) +#define rrdset_context(st) string2str((st)->context) +#define rrdset_name(st) string2str((st)->name) +#define rrdset_id(st) string2str((st)->id) + +static inline uint32_t rrdset_metadata_version(RRDSET *st) { + return __atomic_load_n(&st->version, __ATOMIC_RELAXED); +} + +static inline uint32_t rrdset_metadata_upstream_version(RRDSET *st) { + return __atomic_load_n(&st->rrdpush.sender.sent_version, __ATOMIC_RELAXED); +} + +void rrdset_metadata_updated(RRDSET *st); + +static inline void rrdset_metadata_exposed_upstream(RRDSET *st, uint32_t version) { + __atomic_store_n(&st->rrdpush.sender.sent_version, version, __ATOMIC_RELAXED); +} + +static inline bool rrdset_check_upstream_exposed(RRDSET *st) { + return rrdset_metadata_version(st) == rrdset_metadata_upstream_version(st); +} + +static inline uint32_t rrddim_metadata_version(RRDDIM *rd) { + // the metadata version of the dimension, is the version of the chart + return rrdset_metadata_version(rd->rrdset); +} + +static inline uint32_t rrddim_metadata_upstream_version(RRDDIM *rd) { + return __atomic_load_n(&rd->rrdpush.sender.sent_version, __ATOMIC_RELAXED); +} + +void rrddim_metadata_updated(RRDDIM *rd); + +static inline void rrddim_metadata_exposed_upstream(RRDDIM *rd, uint32_t version) { + __atomic_store_n(&rd->rrdpush.sender.sent_version, version, __ATOMIC_RELAXED); +} + +static inline void rrddim_metadata_exposed_upstream_clear(RRDDIM *rd) { + __atomic_store_n(&rd->rrdpush.sender.sent_version, 0, __ATOMIC_RELAXED); +} + +static inline bool rrddim_check_upstream_exposed(RRDDIM *rd) { + return rrddim_metadata_upstream_version(rd) != 0; +} + +// the collector sets the exposed flag, but anyone can remove it +// still, it can be removed, after the collector has finished +// so, it is safe to check it without atomics +static inline bool rrddim_check_upstream_exposed_collector(RRDDIM *rd) { + return rd->rrdset->version == rd->rrdpush.sender.sent_version; +} + +STRING *rrd_string_strdupz(const char *s); + +// ---------------------------------------------------------------------------- +// these loop macros make sure the linked list is accessed with the right lock + +#define rrdset_foreach_read(st, host) \ + dfe_start_read((host)->rrdset_root_index, st) + +#define rrdset_foreach_write(st, host) \ + dfe_start_write((host)->rrdset_root_index, st) + +#define rrdset_foreach_reentrant(st, host) \ + dfe_start_reentrant((host)->rrdset_root_index, st) + +#define rrdset_foreach_done(st) \ + dfe_done(st) + +#define rrdset_number_of_dimensions(st) \ + dictionary_entries((st)->rrddim_root_index) + +void rrdset_memory_file_save(RRDSET *st); +void rrdset_memory_file_free(RRDSET *st); +void rrdset_memory_file_update(RRDSET *st); +const char *rrdset_cache_filename(RRDSET *st); +bool rrdset_memory_load_or_create_map_save(RRDSET *st_on_file, RRD_MEMORY_MODE memory_mode); + +#include "rrdfunctions.h" + +// ---------------------------------------------------------------------------- +// RRDHOST flags +// use this for configuration flags, not for state control +// flags are set/unset in a manner that is not thread safe +// and may lead to missing information. + +typedef enum __attribute__ ((__packed__)) rrdhost_flags { + + // Careful not to overlap with rrdhost_options to avoid bugs if + // rrdhost_flags_xxx is used instead of rrdhost_option_xxx or vice-versa + // Orphan, Archived and Obsolete flags + RRDHOST_FLAG_ORPHAN = (1 << 8), // this host is orphan (not receiving data) + RRDHOST_FLAG_ARCHIVED = (1 << 9), // The host is archived, no collected charts yet + RRDHOST_FLAG_PENDING_OBSOLETE_CHARTS = (1 << 10), // the host has pending chart obsoletions + RRDHOST_FLAG_PENDING_OBSOLETE_DIMENSIONS = (1 << 11), // the host has pending dimension obsoletions + + // Streaming sender + RRDHOST_FLAG_RRDPUSH_SENDER_INITIALIZED = (1 << 12), // the host has initialized rrdpush structures + RRDHOST_FLAG_RRDPUSH_SENDER_SPAWN = (1 << 13), // When set, the sender thread is running + RRDHOST_FLAG_RRDPUSH_SENDER_CONNECTED = (1 << 14), // When set, the host is connected to a parent + RRDHOST_FLAG_RRDPUSH_SENDER_READY_4_METRICS = (1 << 15), // when set, rrdset_done() should push metrics to parent + RRDHOST_FLAG_RRDPUSH_SENDER_LOGGED_STATUS = (1 << 16), // when set, we have logged the status of metrics streaming + + // Health + RRDHOST_FLAG_PENDING_HEALTH_INITIALIZATION = (1 << 17), // contains charts and dims with uninitialized variables + RRDHOST_FLAG_INITIALIZED_HEALTH = (1 << 18), // the host has initialized health structures + + // Exporting + RRDHOST_FLAG_EXPORTING_SEND = (1 << 19), // send it to external databases + RRDHOST_FLAG_EXPORTING_DONT_SEND = (1 << 20), // don't send it to external databases + + // ACLK + RRDHOST_FLAG_ACLK_STREAM_CONTEXTS = (1 << 21), // when set, we should send ACLK stream context updates + RRDHOST_FLAG_ACLK_STREAM_ALERTS = (1 << 22), // set when the receiver part is disconnected + + // Metadata + RRDHOST_FLAG_METADATA_UPDATE = (1 << 23), // metadata needs to be stored in the database + RRDHOST_FLAG_METADATA_LABELS = (1 << 24), // metadata needs to be stored in the database + RRDHOST_FLAG_METADATA_INFO = (1 << 25), // metadata needs to be stored in the database + RRDHOST_FLAG_PENDING_CONTEXT_LOAD = (1 << 26), // metadata needs to be stored in the database + RRDHOST_FLAG_CONTEXT_LOAD_IN_PROGRESS = (1 << 27), // metadata needs to be stored in the database + + RRDHOST_FLAG_METADATA_CLAIMID = (1 << 28), // metadata needs to be stored in the database + RRDHOST_FLAG_RRDPUSH_RECEIVER_DISCONNECTED = (1 << 29), // set when the receiver part is disconnected + + RRDHOST_FLAG_GLOBAL_FUNCTIONS_UPDATED = (1 << 30), // set when the host has updated global functions +} RRDHOST_FLAGS; + +#define rrdhost_flag_check(host, flag) (__atomic_load_n(&((host)->flags), __ATOMIC_SEQ_CST) & (flag)) +#define rrdhost_flag_set(host, flag) __atomic_or_fetch(&((host)->flags), flag, __ATOMIC_SEQ_CST) +#define rrdhost_flag_clear(host, flag) __atomic_and_fetch(&((host)->flags), ~(flag), __ATOMIC_SEQ_CST) + +#ifdef NETDATA_INTERNAL_CHECKS +#define rrdset_debug(st, fmt, args...) do { if(unlikely(debug_flags & D_RRD_STATS && rrdset_flag_check(st, RRDSET_FLAG_DEBUG))) \ + netdata_logger(NDLS_DEBUG, NDLP_DEBUG, __FILE__, __FUNCTION__, __LINE__, "%s: " fmt, rrdset_name(st), ##args); } while(0) +#else +#define rrdset_debug(st, fmt, args...) debug_dummy() +#endif + +typedef enum __attribute__ ((__packed__)) { + // Indexing + RRDHOST_OPTION_INDEXED_MACHINE_GUID = (1 << 0), // when set, we have indexed its machine guid + RRDHOST_OPTION_INDEXED_HOSTNAME = (1 << 1), // when set, we have indexed its hostname + + // Streaming configuration + RRDHOST_OPTION_SENDER_ENABLED = (1 << 2), // set when the host is configured to send metrics to a parent + + // Configuration options + RRDHOST_OPTION_DELETE_OBSOLETE_CHARTS = (1 << 3), // delete files of obsolete charts + RRDHOST_OPTION_DELETE_ORPHAN_HOST = (1 << 4), // delete the entire host when orphan + + RRDHOST_OPTION_REPLICATION = (1 << 5), // when set, we support replication for this host + + RRDHOST_OPTION_VIRTUAL_HOST = (1 << 6), // when set, this host is a virtual one + RRDHOST_OPTION_EPHEMERAL_HOST = (1 << 7), // when set, this host is an ephemeral one +} RRDHOST_OPTIONS; + +#define rrdhost_option_check(host, flag) ((host)->options & (flag)) +#define rrdhost_option_set(host, flag) (host)->options |= flag +#define rrdhost_option_clear(host, flag) (host)->options &= ~(flag) + +#define rrdhost_has_rrdpush_sender_enabled(host) (rrdhost_option_check(host, RRDHOST_OPTION_SENDER_ENABLED) && (host)->sender) + +#define rrdhost_can_send_definitions_to_parent(host) (rrdhost_has_rrdpush_sender_enabled(host) && rrdhost_flag_check(host, RRDHOST_FLAG_RRDPUSH_SENDER_CONNECTED)) + +// ---------------------------------------------------------------------------- +// Health data + +struct alarm_entry { + uint32_t unique_id; + uint32_t alarm_id; + uint32_t alarm_event_id; + usec_t global_id; + uuid_t config_hash_id; + uuid_t transition_id; + + time_t when; + time_t duration; + time_t non_clear_duration; + + STRING *name; + STRING *chart; + STRING *chart_context; + STRING *chart_name; + + STRING *classification; + STRING *component; + STRING *type; + + STRING *exec; + STRING *recipient; + time_t exec_run_timestamp; + int exec_code; + uint64_t exec_spawn_serial; + + STRING *source; + STRING *units; + STRING *summary; + STRING *info; + + NETDATA_DOUBLE old_value; + NETDATA_DOUBLE new_value; + + STRING *old_value_string; + STRING *new_value_string; + + RRDCALC_STATUS old_status; + RRDCALC_STATUS new_status; + + uint32_t flags; + + int delay; + time_t delay_up_to_timestamp; + + uint32_t updated_by_id; + uint32_t updates_id; + + time_t last_repeat; + + struct alarm_entry *next; + struct alarm_entry *next_in_progress; + struct alarm_entry *prev_in_progress; +}; + +#define ae_name(ae) string2str((ae)->name) +#define ae_chart_id(ae) string2str((ae)->chart) +#define ae_chart_name(ae) string2str((ae)->chart_name) +#define ae_chart_context(ae) string2str((ae)->chart_context) +#define ae_classification(ae) string2str((ae)->classification) +#define ae_exec(ae) string2str((ae)->exec) +#define ae_recipient(ae) string2str((ae)->recipient) +#define ae_source(ae) string2str((ae)->source) +#define ae_units(ae) string2str((ae)->units) +#define ae_summary(ae) string2str((ae)->summary) +#define ae_info(ae) string2str((ae)->info) +#define ae_old_value_string(ae) string2str((ae)->old_value_string) +#define ae_new_value_string(ae) string2str((ae)->new_value_string) + +typedef struct alarm_log { + uint32_t next_log_id; + uint32_t next_alarm_id; + unsigned int count; + unsigned int max; + uint32_t health_log_history; // the health log history in seconds to be kept in db + ALARM_ENTRY *alarms; + RW_SPINLOCK spinlock; +} ALARM_LOG; + +typedef struct health { + time_t health_delay_up_to; // a timestamp to delay alarms processing up to + STRING *health_default_exec; // the full path of the alarms notifications program + STRING *health_default_recipient; // the default recipient for all alarms + uint32_t health_default_warn_repeat_every; // the default value for the interval between repeating warning notifications + uint32_t health_default_crit_repeat_every; // the default value for the interval between repeating critical notifications + unsigned int health_enabled; // 1 when this host has health enabled + bool use_summary_for_notifications; // whether or not to use the summary field as a subject for notifications +} HEALTH; + +// ---------------------------------------------------------------------------- +// RRD HOST + +struct rrdhost_system_info { + char *cloud_provider_type; + char *cloud_instance_type; + char *cloud_instance_region; + + char *host_os_name; + char *host_os_id; + char *host_os_id_like; + char *host_os_version; + char *host_os_version_id; + char *host_os_detection; + char *host_cores; + char *host_cpu_freq; + char *host_ram_total; + char *host_disk_space; + char *container_os_name; + char *container_os_id; + char *container_os_id_like; + char *container_os_version; + char *container_os_version_id; + char *container_os_detection; + char *kernel_name; + char *kernel_version; + char *architecture; + char *virtualization; + char *virt_detection; + char *container; + char *container_detection; + char *is_k8s_node; + uint16_t hops; + bool ml_capable; + bool ml_enabled; + char *install_type; + char *prebuilt_arch; + char *prebuilt_dist; + int mc_version; +}; + +struct rrdhost_system_info *rrdhost_labels_to_system_info(RRDLABELS *labels); + +struct rrdhost { + char machine_guid[GUID_LEN + 1]; // the unique ID of this host + + // ------------------------------------------------------------------------ + // host information + + STRING *hostname; // the hostname of this host + STRING *registry_hostname; // the registry hostname for this host + STRING *os; // the O/S type of the host + STRING *tags; // tags for this host + STRING *timezone; // the timezone of the host + STRING *abbrev_timezone; // the abbriviated timezone of the host + STRING *program_name; // the program name that collects metrics for this host + STRING *program_version; // the program version that collects metrics for this host + + int32_t utc_offset; // the offset in seconds from utc + + RRDHOST_OPTIONS options; // configuration option for this RRDHOST (no atomics on this) + RRDHOST_FLAGS flags; // runtime flags about this RRDHOST (atomics on this) + RRDHOST_FLAGS *exporting_flags; // array of flags for exporting connector instances + + int32_t rrd_update_every; // the update frequency of the host + int32_t rrd_history_entries; // the number of history entries for the host's charts + + RRD_MEMORY_MODE rrd_memory_mode; // the configured memory more for the charts of this host + // the actual per tier is at .db[tier].mode + + char *cache_dir; // the directory to save RRD cache files + + struct { + RRD_MEMORY_MODE mode; // the db mode for this tier + STORAGE_ENGINE *eng; // the storage engine API for this tier + STORAGE_INSTANCE *instance; // the db instance for this tier + uint32_t tier_grouping; // tier 0 iterations aggregated on this tier + } db[RRD_STORAGE_TIERS]; + + struct rrdhost_system_info *system_info; // information collected from the host environment + + // ------------------------------------------------------------------------ + // streaming of data to remote hosts - rrdpush sender + + struct { + struct { + struct { + struct { + SPINLOCK spinlock; + + bool ignore; // when set, freeing slots will not put them in the available + uint32_t used; + uint32_t size; + uint32_t *array; + } available; // keep track of the available chart slots per host + + uint32_t last_used; // the last slot we used for a chart (increments only) + } pluginsd_chart_slots; + } send; + + struct { + struct { + SPINLOCK spinlock; // lock for the management of the allocation + uint32_t size; + RRDSET **array; + } pluginsd_chart_slots; + } receive; + } rrdpush; + + char *rrdpush_send_destination; // where to send metrics to + char *rrdpush_send_api_key; // the api key at the receiving netdata + struct rrdpush_destinations *destinations; // a linked list of possible destinations + struct rrdpush_destinations *destination; // the current destination from the above list + SIMPLE_PATTERN *rrdpush_send_charts_matching; // pattern to match the charts to be sent + + int32_t rrdpush_last_receiver_exit_reason; + time_t rrdpush_seconds_to_replicate; // max time we want to replicate from the child + time_t rrdpush_replication_step; // seconds per replication step + size_t rrdpush_receiver_replicating_charts; // the number of charts currently being replicated from a child + NETDATA_DOUBLE rrdpush_receiver_replication_percent; // the % of replication completion + + // the following are state information for the threading + // streaming metrics from this netdata to an upstream netdata + struct sender_state *sender; + netdata_thread_t rrdpush_sender_thread; // the sender thread + size_t rrdpush_sender_replicating_charts; // the number of charts currently being replicated to a parent + struct aclk_sync_cfg_t *aclk_config; + + uint32_t rrdpush_receiver_connection_counter; // the number of times this receiver has connected + uint32_t rrdpush_sender_connection_counter; // the number of times this sender has connected + + // ------------------------------------------------------------------------ + // streaming of data from remote hosts - rrdpush receiver + + time_t last_connected; // last time child connected (stored in db) + time_t child_connect_time; // the time the last sender was connected + time_t child_last_chart_command; // the time of the last CHART streaming command + time_t child_disconnected_time; // the time the last sender was disconnected + int connected_children_count; // number of senders currently streaming + + struct receiver_state *receiver; + netdata_mutex_t receiver_lock; + int trigger_chart_obsoletion_check; // set when child connects, will instruct parent to + // trigger a check for obsoleted charts since previous connect + + // ------------------------------------------------------------------------ + // health monitoring options + + // health variables + HEALTH health; + + // all RRDCALCs are primarily allocated and linked here + DICTIONARY *rrdcalc_root_index; + + // templates of alarms + DICTIONARY *rrdcalctemplate_root_index; + + ALARM_LOG health_log; // alarms historical events (event log) + uint32_t health_last_processed_id; // the last processed health id from the log + uint32_t health_max_unique_id; // the max alarm log unique id given for the host + uint32_t health_max_alarm_id; // the max alarm id given for the host + size_t health_transitions; // the number of times an alert changed state + + // ------------------------------------------------------------------------ + // locks + + SPINLOCK rrdhost_update_lock; + + // ------------------------------------------------------------------------ + // ML handle + rrd_ml_host_t *ml_host; + + // ------------------------------------------------------------------------ + // Support for host-level labels + RRDLABELS *rrdlabels; + + // ------------------------------------------------------------------------ + // Support for functions + DICTIONARY *functions; // collector functions this rrdset supports, can be NULL + + // ------------------------------------------------------------------------ + // indexes + + DICTIONARY *rrdset_root_index; // the host's charts index (by id) + DICTIONARY *rrdset_root_index_name; // the host's charts index (by name) + + DICTIONARY *rrdfamily_root_index; // the host's chart families index + DICTIONARY *rrdvars; // the host's chart variables index + // this includes custom host variables + + struct { + DICTIONARY *contexts; + DICTIONARY *hub_queue; + DICTIONARY *pp_queue; + uint32_t metrics; + uint32_t instances; + } rrdctx; + + struct { + SPINLOCK spinlock; + time_t first_time_s; + time_t last_time_s; + } retention; + + uuid_t host_uuid; // Global GUID for this host + uuid_t *node_id; // Cloud node_id + + netdata_mutex_t aclk_state_lock; + aclk_rrdhost_state aclk_state; + + DICTIONARY *configurable_plugins; // configurable plugins for this host + + struct rrdhost *next; + struct rrdhost *prev; +}; +extern RRDHOST *localhost; + +#define rrdhost_hostname(host) string2str((host)->hostname) +#define rrdhost_registry_hostname(host) string2str((host)->registry_hostname) +#define rrdhost_os(host) string2str((host)->os) +#define rrdhost_tags(host) string2str((host)->tags) +#define rrdhost_timezone(host) string2str((host)->timezone) +#define rrdhost_abbrev_timezone(host) string2str((host)->abbrev_timezone) +#define rrdhost_program_name(host) string2str((host)->program_name) +#define rrdhost_program_version(host) string2str((host)->program_version) + +#define rrdhost_aclk_state_lock(host) netdata_mutex_lock(&((host)->aclk_state_lock)) +#define rrdhost_aclk_state_unlock(host) netdata_mutex_unlock(&((host)->aclk_state_lock)) + +#define rrdhost_receiver_replicating_charts(host) (__atomic_load_n(&((host)->rrdpush_receiver_replicating_charts), __ATOMIC_RELAXED)) +#define rrdhost_receiver_replicating_charts_plus_one(host) (__atomic_add_fetch(&((host)->rrdpush_receiver_replicating_charts), 1, __ATOMIC_RELAXED)) +#define rrdhost_receiver_replicating_charts_minus_one(host) (__atomic_sub_fetch(&((host)->rrdpush_receiver_replicating_charts), 1, __ATOMIC_RELAXED)) +#define rrdhost_receiver_replicating_charts_zero(host) (__atomic_store_n(&((host)->rrdpush_receiver_replicating_charts), 0, __ATOMIC_RELAXED)) + +#define rrdhost_sender_replicating_charts(host) (__atomic_load_n(&((host)->rrdpush_sender_replicating_charts), __ATOMIC_RELAXED)) +#define rrdhost_sender_replicating_charts_plus_one(host) (__atomic_add_fetch(&((host)->rrdpush_sender_replicating_charts), 1, __ATOMIC_RELAXED)) +#define rrdhost_sender_replicating_charts_minus_one(host) (__atomic_sub_fetch(&((host)->rrdpush_sender_replicating_charts), 1, __ATOMIC_RELAXED)) +#define rrdhost_sender_replicating_charts_zero(host) (__atomic_store_n(&((host)->rrdpush_sender_replicating_charts), 0, __ATOMIC_RELAXED)) + +#define rrdhost_is_online(host) ((host) == localhost || rrdhost_option_check(host, RRDHOST_OPTION_VIRTUAL_HOST) || !rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN | RRDHOST_FLAG_RRDPUSH_RECEIVER_DISCONNECTED)) +bool rrdhost_matches_window(RRDHOST *host, time_t after, time_t before, time_t now); + +extern DICTIONARY *rrdhost_root_index; +size_t rrdhost_hosts_available(void); + +RRDHOST_ACQUIRED *rrdhost_find_and_acquire(const char *machine_guid); +RRDHOST *rrdhost_acquired_to_rrdhost(RRDHOST_ACQUIRED *rha); +void rrdhost_acquired_release(RRDHOST_ACQUIRED *rha); + +// ---------------------------------------------------------------------------- + +#define rrdhost_foreach_read(var) \ + for((var) = localhost; var ; (var) = (var)->next) + +#define rrdhost_foreach_write(var) \ + for((var) = localhost; var ; (var) = (var)->next) + + +// ---------------------------------------------------------------------------- +// global lock for all RRDHOSTs + +extern netdata_rwlock_t rrd_rwlock; + +#define rrd_rdlock() netdata_rwlock_rdlock(&rrd_rwlock) +#define rrd_wrlock() netdata_rwlock_wrlock(&rrd_rwlock) +#define rrd_unlock() netdata_rwlock_unlock(&rrd_rwlock) + +// ---------------------------------------------------------------------------- + +bool is_storage_engine_shared(STORAGE_INSTANCE *engine); +void rrdset_index_init(RRDHOST *host); +void rrdset_index_destroy(RRDHOST *host); + +void rrddim_index_init(RRDSET *st); +void rrddim_index_destroy(RRDSET *st); + +// ---------------------------------------------------------------------------- + +extern time_t rrdhost_free_orphan_time_s; +extern time_t rrdhost_free_ephemeral_time_s; + +int rrd_init(char *hostname, struct rrdhost_system_info *system_info, bool unittest); + +RRDHOST *rrdhost_find_by_hostname(const char *hostname); +RRDHOST *rrdhost_find_by_guid(const char *guid); +RRDHOST *find_host_by_node_id(char *node_id); + +RRDHOST *rrdhost_find_or_create( + const char *hostname, + const char *registry_hostname, + const char *guid, + const char *os, + const char *timezone, + const char *abbrev_timezone, + int32_t utc_offset, + const char *tags, + const char *program_name, + const char *program_version, + int update_every, + long history, + RRD_MEMORY_MODE mode, + unsigned int health_enabled, + unsigned int rrdpush_enabled, + char *rrdpush_destination, + char *rrdpush_api_key, + char *rrdpush_send_charts_matching, + bool rrdpush_enable_replication, + time_t rrdpush_seconds_to_replicate, + time_t rrdpush_replication_step, + struct rrdhost_system_info *system_info, + bool is_archived); + +int rrdhost_set_system_info_variable(struct rrdhost_system_info *system_info, char *name, char *value); + +// ---------------------------------------------------------------------------- +// RRDSET functions + +int rrdset_reset_name(RRDSET *st, const char *name); + +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); + +#define rrdset_create(host, type, id, name, family, context, title, units, plugin, module, priority, update_every, chart_type) \ + rrdset_create_custom(host, type, id, name, family, context, title, units, plugin, module, priority, update_every, chart_type, (host)->rrd_memory_mode, (host)->rrd_history_entries) + +#define rrdset_create_localhost(type, id, name, family, context, title, units, plugin, module, priority, update_every, chart_type) \ + rrdset_create(localhost, type, id, name, family, context, title, units, plugin, module, priority, update_every, chart_type) + +void rrdhost_free_all(void); +void rrdhost_save_all(void); +void rrdhost_cleanup_all(void); + +void rrdhost_system_info_free(struct rrdhost_system_info *system_info); +void rrdhost_free___while_having_rrd_wrlock(RRDHOST *host, bool force); +void rrdhost_save_charts(RRDHOST *host); +void rrdhost_delete_charts(RRDHOST *host); + +int rrdhost_should_be_removed(RRDHOST *host, RRDHOST *protected_host, time_t now_s); + +void rrdset_update_heterogeneous_flag(RRDSET *st); + +time_t rrdset_set_update_every_s(RRDSET *st, time_t update_every_s); + +RRDSET *rrdset_find(RRDHOST *host, const char *id); + +RRDSET_ACQUIRED *rrdset_find_and_acquire(RRDHOST *host, const char *id); +RRDSET *rrdset_acquired_to_rrdset(RRDSET_ACQUIRED *rsa); +void rrdset_acquired_release(RRDSET_ACQUIRED *rsa); + +#define rrdset_find_localhost(id) rrdset_find(localhost, id) +/* This will not return charts that are archived */ +static inline RRDSET *rrdset_find_active_localhost(const char *id) +{ + RRDSET *st = rrdset_find_localhost(id); + return st; +} + +RRDSET *rrdset_find_bytype(RRDHOST *host, const char *type, const char *id); +#define rrdset_find_bytype_localhost(type, id) rrdset_find_bytype(localhost, type, id) +/* This will not return charts that are archived */ +static inline RRDSET *rrdset_find_active_bytype_localhost(const char *type, const char *id) +{ + RRDSET *st = rrdset_find_bytype_localhost(type, id); + return st; +} + +RRDSET *rrdset_find_byname(RRDHOST *host, const char *name); +#define rrdset_find_byname_localhost(name) rrdset_find_byname(localhost, name) +/* This will not return charts that are archived */ +static inline RRDSET *rrdset_find_active_byname_localhost(const char *name) +{ + RRDSET *st = rrdset_find_byname_localhost(name); + return st; +} + +void rrdset_next_usec_unfiltered(RRDSET *st, usec_t microseconds); +void rrdset_next_usec(RRDSET *st, usec_t microseconds); +void rrdset_timed_next(RRDSET *st, struct timeval now, usec_t microseconds); +#define rrdset_next(st) rrdset_next_usec(st, 0ULL) + +void rrdset_timed_done(RRDSET *st, struct timeval now, bool pending_rrdset_next); +void rrdset_done(RRDSET *st); + +void rrdset_is_obsolete___safe_from_collector_thread(RRDSET *st); +void rrdset_isnot_obsolete___safe_from_collector_thread(RRDSET *st); + +// checks if the RRDSET should be offered to viewers +#define rrdset_is_available_for_viewers(st) (!rrdset_flag_check(st, RRDSET_FLAG_HIDDEN) && !rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE) && rrdset_number_of_dimensions(st) && (st)->rrd_memory_mode != RRD_MEMORY_MODE_NONE) +#define rrdset_is_available_for_exporting_and_alarms(st) (!rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE) && rrdset_number_of_dimensions(st)) + +time_t rrddim_first_entry_s(RRDDIM *rd); +time_t rrddim_first_entry_s_of_tier(RRDDIM *rd, size_t tier); +time_t rrddim_last_entry_s(RRDDIM *rd); +time_t rrddim_last_entry_s_of_tier(RRDDIM *rd, size_t tier); + +time_t rrdset_first_entry_s(RRDSET *st); +time_t rrdset_first_entry_s_of_tier(RRDSET *st, size_t tier); +time_t rrdset_last_entry_s(RRDSET *st); +time_t rrdset_last_entry_s_of_tier(RRDSET *st, size_t tier); + +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); + +void rrdset_update_rrdlabels(RRDSET *st, RRDLABELS *new_rrdlabels); + +// ---------------------------------------------------------------------------- +// RRD DIMENSION functions + +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 + ); + +#define rrddim_add(st, id, name, multiplier, divisor, algorithm) \ + rrddim_add_custom(st, id, name, multiplier, divisor, algorithm, (st)->rrd_memory_mode) + +int rrddim_reset_name(RRDSET *st, RRDDIM *rd, const char *name); +int rrddim_set_algorithm(RRDSET *st, RRDDIM *rd, RRD_ALGORITHM algorithm); +int rrddim_set_multiplier(RRDSET *st, RRDDIM *rd, int32_t multiplier); +int rrddim_set_divisor(RRDSET *st, RRDDIM *rd, int32_t divisor); + +RRDDIM *rrddim_find(RRDSET *st, const char *id); +RRDDIM_ACQUIRED *rrddim_find_and_acquire(RRDSET *st, const char *id); +RRDDIM *rrddim_acquired_to_rrddim(RRDDIM_ACQUIRED *rda); +void rrddim_acquired_release(RRDDIM_ACQUIRED *rda); +RRDDIM *rrddim_find_active(RRDSET *st, const char *id); + +int rrddim_hide(RRDSET *st, const char *id); +int rrddim_unhide(RRDSET *st, const char *id); + +void rrddim_is_obsolete___safe_from_collector_thread(RRDSET *st, RRDDIM *rd); +void rrddim_isnot_obsolete___safe_from_collector_thread(RRDSET *st, RRDDIM *rd); + +collected_number rrddim_timed_set_by_pointer(RRDSET *st, RRDDIM *rd, struct timeval collected_time, collected_number value); +collected_number rrddim_set_by_pointer(RRDSET *st, RRDDIM *rd, collected_number value); +collected_number rrddim_set(RRDSET *st, const char *id, collected_number value); + +bool rrddim_finalize_collection_and_check_retention(RRDDIM *rd); +void rrdset_finalize_collection(RRDSET *st, bool dimensions_too); +void rrdhost_finalize_collection(RRDHOST *host); +void rrd_finalize_collection_for_all_hosts(void); + +long align_entries_to_pagesize(RRD_MEMORY_MODE mode, long entries); + +#ifdef NETDATA_LOG_COLLECTION_ERRORS +#define rrddim_store_metric(rd, point_end_time_ut, n, flags) rrddim_store_metric_with_trace(rd, point_end_time_ut, n, flags, __FUNCTION__) +void rrddim_store_metric_with_trace(RRDDIM *rd, usec_t point_end_time_ut, NETDATA_DOUBLE n, SN_FLAGS flags, const char *function); +#else +void rrddim_store_metric(RRDDIM *rd, usec_t point_end_time_ut, NETDATA_DOUBLE n, SN_FLAGS flags); +#endif + +// ---------------------------------------------------------------------------- +// Miscellaneous functions + +char *rrdset_strncpyz_name(char *to, const char *from, size_t length); +void reload_host_labels(void); +void rrdhost_set_is_parent_label(void); + +// ---------------------------------------------------------------------------- +// RRD internal functions + +void rrdset_delete_files(RRDSET *st); +void rrdset_save(RRDSET *st); +void rrdset_free(RRDSET *st); + +void rrddim_free(RRDSET *st, RRDDIM *rd); + +#ifdef NETDATA_RRD_INTERNALS + +char *rrdhost_cache_dir_for_rrdset_alloc(RRDHOST *host, const char *id); +const char *rrdset_cache_dir(RRDSET *st); + +void rrdset_reset(RRDSET *st); +void rrdset_delete_obsolete_dimensions(RRDSET *st); + +#endif /* NETDATA_RRD_INTERNALS */ + +void set_host_properties( + RRDHOST *host, int update_every, RRD_MEMORY_MODE memory_mode, const char *registry_hostname, + const char *os, const char *tags, const char *tzone, const char *abbrev_tzone, int32_t utc_offset, + const char *program_name, const char *program_version); + +size_t get_tier_grouping(size_t tier); +void store_metric_collection_completed(void); + +static inline void rrdhost_retention(RRDHOST *host, time_t now, bool online, time_t *from, time_t *to) { + time_t first_time_s = 0, last_time_s = 0; + spinlock_lock(&host->retention.spinlock); + first_time_s = host->retention.first_time_s; + last_time_s = host->retention.last_time_s; + spinlock_unlock(&host->retention.spinlock); + + if(from) + *from = first_time_s; + + if(to) + *to = online ? now : last_time_s; +} + +void rrdhost_pluginsd_send_chart_slots_free(RRDHOST *host); +void rrdhost_pluginsd_receive_chart_slots_free(RRDHOST *host); +void rrdset_pluginsd_receive_unslot_and_cleanup(RRDSET *st); +void rrdset_pluginsd_receive_unslot(RRDSET *st); + +// ---------------------------------------------------------------------------- +static inline double rrddim_get_last_stored_value(RRDDIM *rd_dim, double *max_value, double div) { + if (!rd_dim) + return NAN; + + if (isnan(div) || div == 0.0) + div = 1.0; + + double value = rd_dim->collector.last_stored_value / div; + value = ABS(value); + + *max_value = MAX(*max_value, value); + + return value; +} + +// +// RRD DB engine declarations + +#ifdef ENABLE_DBENGINE +#include "database/engine/rrdengineapi.h" +#endif +#include "sqlite/sqlite_functions.h" +#include "sqlite/sqlite_context.h" +#include "sqlite/sqlite_metadata.h" +#include "sqlite/sqlite_aclk.h" +#include "sqlite/sqlite_aclk_alert.h" +#include "sqlite/sqlite_aclk_node.h" +#include "sqlite/sqlite_health.h" + +#ifdef __cplusplus +} +#endif + +#endif /* NETDATA_RRD_H */ |