Merging upstream version 1.46.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 532 deletions

diff --git a/database/engine/rrdengine.h b/database/engine/rrdengine.h
deleted file mode 100644
index cd3352f12..000000000
--- a/database/engine/rrdengine.h
+++ /dev/null
@@ -1,532 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#ifndef NETDATA_RRDENGINE_H
-#define NETDATA_RRDENGINE_H
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#include <fcntl.h>
-#include <lz4.h>
-#include <Judy.h>
-#include <openssl/sha.h>
-#include <openssl/evp.h>
-#include "daemon/common.h"
-#include "../rrd.h"
-#include "rrddiskprotocol.h"
-#include "rrdenginelib.h"
-#include "datafile.h"
-#include "journalfile.h"
-#include "rrdengineapi.h"
-#include "pagecache.h"
-#include "metric.h"
-#include "cache.h"
-#include "pdc.h"
-#include "page.h"
-
-extern unsigned rrdeng_pages_per_extent;
-
-/* Forward declarations */
-struct rrdengine_instance;
-struct rrdeng_cmd;
-
-#define MAX_PAGES_PER_EXTENT (64) /* TODO: can go higher only when journal supports bigger than 4KiB transactions */
-
-#define RRDENG_FILE_NUMBER_SCAN_TMPL "%1u-%10u"
-#define RRDENG_FILE_NUMBER_PRINT_TMPL "%1.1u-%10.10u"
-
-typedef enum __attribute__ ((__packed__)) {
-    // final status for all pages
-    // if a page does not have one of these, it is considered unroutable
-    PDC_PAGE_READY     = (1 << 0),                  // ready to be processed (pd->page is not null)
-    PDC_PAGE_FAILED    = (1 << 1),                  // failed to be loaded (pd->page is null)
-    PDC_PAGE_SKIP      = (1 << 2),                  // don't use this page, it is not good for us
-    PDC_PAGE_INVALID   = (1 << 3),                  // don't use this page, it is invalid
-    PDC_PAGE_EMPTY     = (1 << 4),                  // the page is empty, does not have any data
-
-    // other statuses for tracking issues
-    PDC_PAGE_PREPROCESSED              = (1 << 5),  // used during preprocessing
-    PDC_PAGE_PROCESSED                 = (1 << 6),  // processed by the query caller
-    PDC_PAGE_RELEASED                  = (1 << 7),  // already released
-
-    // data found in cache (preloaded) or on disk?
-    PDC_PAGE_PRELOADED                 = (1 << 8),  // data found in memory
-    PDC_PAGE_DISK_PENDING              = (1 << 9),  // data need to be loaded from disk
-
-    // worker related statuses
-    PDC_PAGE_FAILED_INVALID_EXTENT     = (1 << 10),
-    PDC_PAGE_FAILED_NOT_IN_EXTENT      = (1 << 11),
-    PDC_PAGE_FAILED_TO_MAP_EXTENT      = (1 << 12),
-    PDC_PAGE_FAILED_TO_ACQUIRE_DATAFILE= (1 << 13),
-
-    PDC_PAGE_EXTENT_FROM_CACHE         = (1 << 14),
-    PDC_PAGE_EXTENT_FROM_DISK          = (1 << 15),
-
-    PDC_PAGE_CANCELLED                 = (1 << 16), // the query thread had left when we try to load the page
-
-    PDC_PAGE_SOURCE_MAIN_CACHE         = (1 << 17),
-    PDC_PAGE_SOURCE_OPEN_CACHE         = (1 << 18),
-    PDC_PAGE_SOURCE_JOURNAL_V2         = (1 << 19),
-    PDC_PAGE_PRELOADED_PASS4           = (1 << 20),
-
-    // datafile acquired
-    PDC_PAGE_DATAFILE_ACQUIRED         = (1 << 30),
-} PDC_PAGE_STATUS;
-
-#define PDC_PAGE_QUERY_GLOBAL_SKIP_LIST (PDC_PAGE_FAILED | PDC_PAGE_SKIP | PDC_PAGE_INVALID | PDC_PAGE_RELEASED)
-
-typedef struct page_details_control {
-    struct rrdengine_instance *ctx;
-    struct metric *metric;
-
-    struct completion prep_completion;
-    struct completion page_completion;   // sync between the query thread and the workers
-
-    Pvoid_t page_list_JudyL;        // the list of page details
-    unsigned completed_jobs;        // the number of jobs completed last time the query thread checked
-    bool workers_should_stop;       // true when the query thread left and the workers should stop
-    bool prep_done;
-
-    PDC_PAGE_STATUS common_status;
-    size_t pages_to_load_from_disk;
-
-    SPINLOCK refcount_spinlock;     // spinlock to protect refcount
-    int32_t refcount;               // the number of workers currently working on this request + 1 for the query thread
-    size_t executed_with_gaps;
-
-    time_t start_time_s;
-    time_t end_time_s;
-    STORAGE_PRIORITY priority;
-
-    time_t optimal_end_time_s;
-} PDC;
-
-PDC *pdc_get(void);
-
-struct page_details {
-    struct {
-        struct rrdengine_datafile *ptr;
-        uv_file file;
-        unsigned fileno;
-
-        struct {
-            uint64_t pos;
-            uint32_t bytes;
-        } extent;
-    } datafile;
-
-    struct pgc_page *page;
-    Word_t metric_id;
-    time_t first_time_s;
-    time_t last_time_s;
-    uint32_t update_every_s;
-    PDC_PAGE_STATUS status;
-
-    struct {
-        struct page_details *prev;
-        struct page_details *next;
-    } load;
-};
-
-struct page_details *page_details_get(void);
-
-#define pdc_page_status_check(pd, flag) (__atomic_load_n(&((pd)->status), __ATOMIC_ACQUIRE) & (flag))
-#define pdc_page_status_set(pd, flag)   __atomic_or_fetch(&((pd)->status), flag, __ATOMIC_RELEASE)
-#define pdc_page_status_clear(pd, flag) __atomic_and_fetch(&((od)->status), ~(flag), __ATOMIC_RELEASE)
-
-struct jv2_extents_info {
-    size_t index;
-    uint64_t pos;
-    unsigned bytes;
-    size_t number_of_pages;
-};
-
-struct jv2_metrics_info {
-    uuid_t *uuid;
-    uint32_t page_list_header;
-    time_t first_time_s;
-    time_t last_time_s;
-    size_t number_of_pages;
-    Pvoid_t JudyL_pages_by_start_time;
-};
-
-struct jv2_page_info {
-    time_t start_time_s;
-    time_t end_time_s;
-    time_t update_every_s;
-    size_t page_length;
-    uint32_t extent_index;
-    void *custom_data;
-
-    // private
-    struct pgc_page *page;
-};
-
-typedef enum __attribute__ ((__packed__)) {
-    RRDENG_1ST_METRIC_WRITER    = (1 << 0),
-} RRDENG_COLLECT_HANDLE_OPTIONS;
-
-typedef enum __attribute__ ((__packed__)) {
-    RRDENG_PAGE_PAST_COLLECTION       = (1 << 0),
-    RRDENG_PAGE_REPEATED_COLLECTION   = (1 << 1),
-    RRDENG_PAGE_BIG_GAP               = (1 << 2),
-    RRDENG_PAGE_GAP                   = (1 << 3),
-    RRDENG_PAGE_FUTURE_POINT          = (1 << 4),
-    RRDENG_PAGE_CREATED_IN_FUTURE     = (1 << 5),
-    RRDENG_PAGE_COMPLETED_IN_FUTURE   = (1 << 6),
-    RRDENG_PAGE_UNALIGNED             = (1 << 7),
-    RRDENG_PAGE_CONFLICT              = (1 << 8),
-    RRDENG_PAGE_FULL                  = (1 << 9),
-    RRDENG_PAGE_COLLECT_FINALIZE      = (1 << 10),
-    RRDENG_PAGE_UPDATE_EVERY_CHANGE   = (1 << 11),
-    RRDENG_PAGE_STEP_TOO_SMALL        = (1 << 12),
-    RRDENG_PAGE_STEP_UNALIGNED        = (1 << 13),
-} RRDENG_COLLECT_PAGE_FLAGS;
-
-struct rrdeng_collect_handle {
-    struct storage_collect_handle common; // has to be first item
-
-    RRDENG_COLLECT_PAGE_FLAGS page_flags;
-    RRDENG_COLLECT_HANDLE_OPTIONS options;
-    uint8_t type;
-
-    struct rrdengine_instance *ctx;
-    struct metric *metric;
-    struct pgc_page *pgc_page;
-    struct pgd *page_data;
-    size_t page_data_size;
-    struct pg_alignment *alignment;
-    uint32_t page_entries_max;
-    uint32_t page_position;                   // keep track of the current page size, to make sure we don't exceed it
-    usec_t page_start_time_ut;
-    usec_t page_end_time_ut;
-    usec_t update_every_ut;
-};
-
-struct rrdeng_query_handle {
-    struct metric *metric;
-    struct pgc_page *page;
-    struct rrdengine_instance *ctx;
-    struct pgd_cursor pgdc;
-    struct page_details_control *pdc;
-
-    // the request
-    time_t start_time_s;
-    time_t end_time_s;
-    STORAGE_PRIORITY priority;
-
-    // internal data
-    time_t now_s;
-    time_t dt_s;
-
-    unsigned position;
-    unsigned entries;
-
-#ifdef NETDATA_INTERNAL_CHECKS
-    usec_t started_time_s;
-    pid_t query_pid;
-    struct rrdeng_query_handle *prev, *next;
-#endif
-};
-
-struct rrdeng_query_handle *rrdeng_query_handle_get(void);
-void rrdeng_query_handle_release(struct rrdeng_query_handle *handle);
-
-enum rrdeng_opcode {
-    /* can be used to return empty status or flush the command queue */
-    RRDENG_OPCODE_NOOP = 0,
-
-    RRDENG_OPCODE_QUERY,
-    RRDENG_OPCODE_EXTENT_WRITE,
-    RRDENG_OPCODE_EXTENT_READ,
-    RRDENG_OPCODE_FLUSHED_TO_OPEN,
-    RRDENG_OPCODE_DATABASE_ROTATE,
-    RRDENG_OPCODE_JOURNAL_INDEX,
-    RRDENG_OPCODE_FLUSH_INIT,
-    RRDENG_OPCODE_EVICT_INIT,
-    RRDENG_OPCODE_CTX_SHUTDOWN,
-    RRDENG_OPCODE_CTX_QUIESCE,
-    RRDENG_OPCODE_CTX_POPULATE_MRG,
-    RRDENG_OPCODE_SHUTDOWN_EVLOOP,
-    RRDENG_OPCODE_CLEANUP,
-
-    RRDENG_OPCODE_MAX
-};
-
-// WORKERS IDS:
-// RRDENG_MAX_OPCODE                     : reserved for the cleanup
-// RRDENG_MAX_OPCODE + opcode            : reserved for the callbacks of each opcode
-// RRDENG_MAX_OPCODE + RRDENG_MAX_OPCODE : reserved for the timer
-#define RRDENG_TIMER_CB (RRDENG_OPCODE_MAX + RRDENG_OPCODE_MAX)
-#define RRDENG_FLUSH_TRANSACTION_BUFFER_CB (RRDENG_TIMER_CB + 1)
-#define RRDENG_OPCODES_WAITING             (RRDENG_TIMER_CB + 2)
-#define RRDENG_WORKS_DISPATCHED            (RRDENG_TIMER_CB + 3)
-#define RRDENG_WORKS_EXECUTING             (RRDENG_TIMER_CB + 4)
-
-struct extent_io_data {
-    unsigned fileno;
-    uv_file file;
-    uint64_t pos;
-    unsigned bytes;
-    uint16_t page_length;
-};
-
-struct extent_io_descriptor {
-    struct rrdengine_instance *ctx;
-    uv_fs_t uv_fs_request;
-    uv_buf_t iov;
-    uv_file file;
-    void *buf;
-    struct wal *wal;
-    uint64_t pos;
-    unsigned bytes;
-    struct completion *completion;
-    unsigned descr_count;
-    struct page_descr_with_data *descr_array[MAX_PAGES_PER_EXTENT];
-    struct rrdengine_datafile *datafile;
-    struct extent_io_descriptor *next; /* multiple requests to be served by the same cached extent */
-};
-
-struct generic_io_descriptor {
-    struct rrdengine_instance *ctx;
-    uv_fs_t req;
-    uv_buf_t iov;
-    void *buf;
-    void *data;
-    uint64_t pos;
-    unsigned bytes;
-    struct completion *completion;
-};
-
-typedef struct wal {
-    uint64_t transaction_id;
-    void *buf;
-    size_t size;
-    size_t buf_size;
-    struct generic_io_descriptor io_descr;
-
-    struct {
-        struct wal *prev;
-        struct wal *next;
-    } cache;
-} WAL;
-
-WAL *wal_get(struct rrdengine_instance *ctx, unsigned size);
-void wal_release(WAL *wal);
-
-/*
- * Debug statistics not used by code logic.
- * They only describe operations since DB engine instance load time.
- */
-struct rrdengine_statistics {
-    rrdeng_stats_t before_decompress_bytes;
-    rrdeng_stats_t after_decompress_bytes;
-    rrdeng_stats_t before_compress_bytes;
-    rrdeng_stats_t after_compress_bytes;
-
-    rrdeng_stats_t io_write_bytes;
-    rrdeng_stats_t io_write_requests;
-    rrdeng_stats_t io_read_bytes;
-    rrdeng_stats_t io_read_requests;
-
-    rrdeng_stats_t datafile_creations;
-    rrdeng_stats_t datafile_deletions;
-    rrdeng_stats_t journalfile_creations;
-    rrdeng_stats_t journalfile_deletions;
-
-    rrdeng_stats_t io_errors;
-    rrdeng_stats_t fs_errors;
-};
-
-/* I/O errors global counter */
-extern rrdeng_stats_t global_io_errors;
-/* File-System errors global counter */
-extern rrdeng_stats_t global_fs_errors;
-/* number of File-Descriptors that have been reserved by dbengine */
-extern rrdeng_stats_t rrdeng_reserved_file_descriptors;
-/* inability to flush global counters */
-extern rrdeng_stats_t global_pg_cache_over_half_dirty_events;
-extern rrdeng_stats_t global_flushing_pressure_page_deletions; /* number of deleted pages */
-
-struct rrdengine_instance {
-    struct {
-        bool legacy;                                // true when the db is autonomous for a single host
-
-        int tier;                                   // the tier of this ctx
-        uint8_t page_type;                          // default page type for this context
-
-        uint64_t max_disk_space;                    // the max disk space this ctx is allowed to use
-        uint8_t global_compress_alg;                // the wanted compression algorithm
-
-        char dbfiles_path[FILENAME_MAX + 1];
-    } config;
-
-    struct {
-        uv_rwlock_t rwlock;                         // the linked list of datafiles is protected by this lock
-        struct rrdengine_datafile *first;           // oldest - the newest with ->first->prev
-    } datafiles;
-
-    struct {
-        RW_SPINLOCK spinlock;
-        Pvoid_t JudyL;
-    } njfv2idx;
-
-    struct {
-        unsigned last_fileno;                       // newest index of datafile and journalfile
-        unsigned last_flush_fileno;                 // newest index of datafile received data
-
-        size_t collectors_running;
-        size_t collectors_running_duplicate;
-        size_t inflight_queries;                    // the number of queries currently running
-        uint64_t current_disk_space;                // the current disk space size used
-
-        uint64_t transaction_id;                    // the transaction id of the next extent flushing
-
-        bool migration_to_v2_running;
-        bool now_deleting_files;
-        unsigned extents_currently_being_flushed;   // non-zero until we commit data to disk (both datafile and journal file)
-
-        time_t first_time_s;
-    } atomic;
-
-    struct {
-        bool exit_mode;
-        bool enabled;                               // when set (before shutdown), queries are prohibited
-        struct completion completion;
-    } quiesce;
-
-    struct {
-        struct {
-            size_t size;
-            struct completion *array;
-        } populate_mrg;
-
-        bool create_new_datafile_pair;
-    } loading;
-
-    struct rrdengine_statistics stats;
-};
-
-#define ctx_current_disk_space_get(ctx) __atomic_load_n(&(ctx)->atomic.current_disk_space, __ATOMIC_RELAXED)
-#define ctx_current_disk_space_increase(ctx, size) __atomic_add_fetch(&(ctx)->atomic.current_disk_space, size, __ATOMIC_RELAXED)
-#define ctx_current_disk_space_decrease(ctx, size) __atomic_sub_fetch(&(ctx)->atomic.current_disk_space, size, __ATOMIC_RELAXED)
-
-static inline void ctx_io_read_op_bytes(struct rrdengine_instance *ctx, size_t bytes) {
-    __atomic_add_fetch(&ctx->stats.io_read_bytes, bytes, __ATOMIC_RELAXED);
-    __atomic_add_fetch(&ctx->stats.io_read_requests, 1, __ATOMIC_RELAXED);
-}
-
-static inline void ctx_io_write_op_bytes(struct rrdengine_instance *ctx, size_t bytes) {
-    __atomic_add_fetch(&ctx->stats.io_write_bytes, bytes, __ATOMIC_RELAXED);
-    __atomic_add_fetch(&ctx->stats.io_write_requests, 1, __ATOMIC_RELAXED);
-}
-
-static inline void ctx_io_error(struct rrdengine_instance *ctx) {
-    __atomic_add_fetch(&ctx->stats.io_errors, 1, __ATOMIC_RELAXED);
-    rrd_stat_atomic_add(&global_io_errors, 1);
-}
-
-static inline void ctx_fs_error(struct rrdengine_instance *ctx) {
-    __atomic_add_fetch(&ctx->stats.fs_errors, 1, __ATOMIC_RELAXED);
-    rrd_stat_atomic_add(&global_fs_errors, 1);
-}
-
-#define ctx_last_fileno_get(ctx) __atomic_load_n(&(ctx)->atomic.last_fileno, __ATOMIC_RELAXED)
-#define ctx_last_fileno_increment(ctx) __atomic_add_fetch(&(ctx)->atomic.last_fileno, 1, __ATOMIC_RELAXED)
-
-#define ctx_last_flush_fileno_get(ctx) __atomic_load_n(&(ctx)->atomic.last_flush_fileno, __ATOMIC_RELAXED)
-static inline void ctx_last_flush_fileno_set(struct rrdengine_instance *ctx, unsigned fileno) {
-    unsigned old_fileno = ctx_last_flush_fileno_get(ctx);
-
-    do {
-        if(old_fileno >= fileno)
-            return;
-
-    } while(!__atomic_compare_exchange_n(&ctx->atomic.last_flush_fileno, &old_fileno, fileno, false, __ATOMIC_RELAXED, __ATOMIC_RELAXED));
-}
-
-#define ctx_is_available_for_queries(ctx) (__atomic_load_n(&(ctx)->quiesce.enabled, __ATOMIC_RELAXED) == false && __atomic_load_n(&(ctx)->quiesce.exit_mode, __ATOMIC_RELAXED) == false)
-
-void *dbengine_extent_alloc(size_t size);
-void dbengine_extent_free(void *extent, size_t size);
-
-bool rrdeng_ctx_exceeded_disk_quota(struct rrdengine_instance *ctx);
-int init_rrd_files(struct rrdengine_instance *ctx);
-void finalize_rrd_files(struct rrdengine_instance *ctx);
-bool rrdeng_dbengine_spawn(struct rrdengine_instance *ctx);
-void dbengine_event_loop(void *arg);
-
-typedef void (*enqueue_callback_t)(struct rrdeng_cmd *cmd);
-typedef void (*dequeue_callback_t)(struct rrdeng_cmd *cmd);
-
-void rrdeng_enqueue_epdl_cmd(struct rrdeng_cmd *cmd);
-void rrdeng_dequeue_epdl_cmd(struct rrdeng_cmd *cmd);
-
-typedef struct rrdeng_cmd *(*requeue_callback_t)(void *data);
-void rrdeng_req_cmd(requeue_callback_t get_cmd_cb, void *data, STORAGE_PRIORITY priority);
-
-void rrdeng_enq_cmd(struct rrdengine_instance *ctx, enum rrdeng_opcode opcode, void *data,
-                struct completion *completion, enum storage_priority priority,
-                enqueue_callback_t enqueue_cb, dequeue_callback_t dequeue_cb);
-
-void pdc_route_asynchronously(struct rrdengine_instance *ctx, struct page_details_control *pdc);
-void pdc_route_synchronously(struct rrdengine_instance *ctx, struct page_details_control *pdc);
-
-void pdc_acquire(PDC *pdc);
-bool pdc_release_and_destroy_if_unreferenced(PDC *pdc, bool worker, bool router);
-
-uint64_t rrdeng_target_data_file_size(struct rrdengine_instance *ctx);
-
-struct page_descr_with_data *page_descriptor_get(void);
-
-typedef struct validated_page_descriptor {
-    time_t start_time_s;
-    time_t end_time_s;
-    time_t update_every_s;
-    size_t page_length;
-    size_t point_size;
-    size_t entries;
-    uint8_t type;
-    bool is_valid;
-} VALIDATED_PAGE_DESCRIPTOR;
-
-#define page_entries_by_time(start_time_s, end_time_s, update_every_s) \
-        ((update_every_s) ? (((end_time_s) - ((start_time_s) - (update_every_s))) / (update_every_s)) : 1)
-
-#define page_entries_by_size(page_length_in_bytes, point_size_in_bytes) \
-        ((page_length_in_bytes) / (point_size_in_bytes))
-
-VALIDATED_PAGE_DESCRIPTOR validate_page(uuid_t *uuid,
-                                        time_t start_time_s,
-                                        time_t end_time_s,
-                                        time_t update_every_s,
-                                        size_t page_length,
-                                        uint8_t page_type,
-                                        size_t entries,
-                                        time_t now_s,
-                                        time_t overwrite_zero_update_every_s,
-                                        bool have_read_error,
-                                        const char *msg,
-                                        RRDENG_COLLECT_PAGE_FLAGS flags);
-VALIDATED_PAGE_DESCRIPTOR validate_extent_page_descr(const struct rrdeng_extent_page_descr *descr, time_t now_s, time_t overwrite_zero_update_every_s, bool have_read_error);
-void collect_page_flags_to_buffer(BUFFER *wb, RRDENG_COLLECT_PAGE_FLAGS flags);
-
-typedef enum {
-    PAGE_IS_IN_THE_PAST   = -1,
-    PAGE_IS_IN_RANGE      =  0,
-    PAGE_IS_IN_THE_FUTURE =  1,
-} TIME_RANGE_COMPARE;
-
-TIME_RANGE_COMPARE is_page_in_time_range(time_t page_first_time_s, time_t page_last_time_s, time_t wanted_start_time_s, time_t wanted_end_time_s);
-
-static inline time_t max_acceptable_collected_time(void) {
-    return now_realtime_sec() + 1;
-}
-
-void datafile_delete(struct rrdengine_instance *ctx, struct rrdengine_datafile *datafile, bool update_retention, bool worker);
-
-static inline int journal_metric_uuid_compare(const void *key, const void *metric) {
-    return uuid_memcmp((uuid_t *)key, &(((struct journal_metric_list *) metric)->uuid));
-}
-
-#endif /* NETDATA_RRDENGINE_H */