src/database/sqlite/sqlite_metadata.c
// SPDX-License-Identifier: GPL-3.0-or-later
#include "sqlite_metadata.h"
#include "sqlite3recover.h"
//#include "sqlite_db_migration.h"
#define DB_METADATA_VERSION 18
const char *database_config[] = {
"CREATE TABLE IF NOT EXISTS host(host_id BLOB PRIMARY KEY, hostname TEXT NOT NULL, "
"registry_hostname TEXT NOT NULL default 'unknown', update_every INT NOT NULL default 1, "
"os TEXT NOT NULL default 'unknown', timezone TEXT NOT NULL default 'unknown', tags TEXT NOT NULL default '',"
"hops INT NOT NULL DEFAULT 0,"
"memory_mode INT DEFAULT 0, abbrev_timezone TEXT DEFAULT '', utc_offset INT NOT NULL DEFAULT 0,"
"program_name TEXT NOT NULL DEFAULT 'unknown', program_version TEXT NOT NULL DEFAULT 'unknown', "
"entries INT NOT NULL DEFAULT 0,"
"health_enabled INT NOT NULL DEFAULT 0, last_connected INT NOT NULL DEFAULT 0)",
"CREATE TABLE IF NOT EXISTS chart(chart_id blob PRIMARY KEY, host_id blob, type text, id text, name text, "
"family text, context text, title text, unit text, plugin text, module text, priority int, update_every int, "
"chart_type int, memory_mode int, history_entries)",
"CREATE TABLE IF NOT EXISTS dimension(dim_id blob PRIMARY KEY, chart_id blob, id text, name text, "
"multiplier int, divisor int , algorithm int, options text)",
"CREATE TABLE IF NOT EXISTS metadata_migration(filename text, file_size, date_created int)",
"CREATE TABLE IF NOT EXISTS chart_label(chart_id blob, source_type int, label_key text, "
"label_value text, date_created int, PRIMARY KEY (chart_id, label_key))",
"CREATE TRIGGER IF NOT EXISTS del_chart_label AFTER DELETE ON chart "
"BEGIN DELETE FROM chart_label WHERE chart_id = old.chart_id; END",
"CREATE TRIGGER IF NOT EXISTS del_chart "
"AFTER DELETE ON dimension "
"FOR EACH ROW "
"BEGIN"
" DELETE FROM chart WHERE chart_id = OLD.chart_id "
" AND NOT EXISTS (SELECT 1 FROM dimension WHERE chart_id = OLD.chart_id);"
"END",
"CREATE TABLE IF NOT EXISTS node_instance (host_id blob PRIMARY KEY, claim_id, node_id, date_created)",
"CREATE TABLE IF NOT EXISTS alert_hash(hash_id blob PRIMARY KEY, date_updated int, alarm text, template text, "
"on_key text, class text, component text, type text, os text, hosts text, lookup text, "
"every text, units text, calc text, families text, plugin text, module text, charts text, green text, "
"red text, warn text, crit text, exec text, to_key text, info text, delay text, options text, "
"repeat text, host_labels text, p_db_lookup_dimensions text, p_db_lookup_method text, p_db_lookup_options int, "
"p_db_lookup_after int, p_db_lookup_before int, p_update_every int, source text, chart_labels text, "
"summary text, time_group_condition INT, time_group_value DOUBLE, dims_group INT, data_source INT)",
"CREATE TABLE IF NOT EXISTS host_info(host_id blob, system_key text NOT NULL, system_value text NOT NULL, "
"date_created INT, PRIMARY KEY(host_id, system_key))",
"CREATE TABLE IF NOT EXISTS host_label(host_id blob, source_type int, label_key text NOT NULL, "
"label_value text NOT NULL, date_created INT, PRIMARY KEY (host_id, label_key))",
"CREATE TRIGGER IF NOT EXISTS ins_host AFTER INSERT ON host BEGIN INSERT INTO node_instance (host_id, date_created)"
" SELECT new.host_id, unixepoch() WHERE new.host_id NOT IN (SELECT host_id FROM node_instance); END",
"CREATE TABLE IF NOT EXISTS health_log (health_log_id INTEGER PRIMARY KEY, host_id blob, alarm_id int, "
"config_hash_id blob, name text, chart text, family text, recipient text, units text, exec text, "
"chart_context text, last_transition_id blob, chart_name text, UNIQUE (host_id, alarm_id))",
"CREATE TABLE IF NOT EXISTS health_log_detail (health_log_id int, unique_id int, alarm_id int, alarm_event_id int, "
"updated_by_id int, updates_id int, when_key int, duration int, non_clear_duration int, "
"flags int, exec_run_timestamp int, delay_up_to_timestamp int, "
"info text, exec_code int, new_status real, old_status real, delay int, "
"new_value double, old_value double, last_repeat int, transition_id blob, global_id int, summary text)",
"CREATE INDEX IF NOT EXISTS ind_d2 on dimension (chart_id)",
"CREATE INDEX IF NOT EXISTS ind_c3 on chart (host_id)",
"CREATE INDEX IF NOT EXISTS health_log_ind_1 ON health_log (host_id)",
"CREATE INDEX IF NOT EXISTS health_log_d_ind_2 ON health_log_detail (global_id)",
"CREATE INDEX IF NOT EXISTS health_log_d_ind_3 ON health_log_detail (transition_id)",
"CREATE INDEX IF NOT EXISTS health_log_d_ind_9 ON health_log_detail (unique_id DESC, health_log_id)",
"CREATE INDEX IF NOT EXISTS health_log_d_ind_6 on health_log_detail (health_log_id, when_key)",
"CREATE INDEX IF NOT EXISTS health_log_d_ind_7 on health_log_detail (alarm_id)",
"CREATE INDEX IF NOT EXISTS health_log_d_ind_8 on health_log_detail (new_status, updated_by_id)",
"CREATE TABLE IF NOT EXISTS alert_queue "
" (host_id BLOB, health_log_id INT, unique_id INT, alarm_id INT, status INT, date_scheduled INT, "
" UNIQUE(host_id, health_log_id, alarm_id))",
"CREATE TABLE IF NOT EXISTS alert_version (health_log_id INTEGER PRIMARY KEY, unique_id INT, status INT, "
"version INT, date_submitted INT)",
"CREATE TABLE IF NOT EXISTS aclk_queue (sequence_id INTEGER PRIMARY KEY, host_id blob, health_log_id INT, "
"unique_id INT, date_created INT, UNIQUE(host_id, health_log_id))",
NULL
};
const char *database_cleanup[] = {
"DELETE FROM host WHERE host_id NOT IN (SELECT host_id FROM chart)",
"DELETE FROM node_instance WHERE host_id NOT IN (SELECT host_id FROM host)",
"DELETE FROM host_info WHERE host_id NOT IN (SELECT host_id FROM host)",
"DELETE FROM host_label WHERE host_id NOT IN (SELECT host_id FROM host)",
"DROP TRIGGER IF EXISTS tr_dim_del",
"DROP INDEX IF EXISTS ind_d1",
"DROP INDEX IF EXISTS ind_c1",
"DROP INDEX IF EXISTS ind_c2",
"DROP INDEX IF EXISTS alert_hash_index",
"DROP INDEX IF EXISTS health_log_d_ind_4",
"DROP INDEX IF EXISTS health_log_d_ind_1",
"DROP INDEX IF EXISTS health_log_d_ind_5",
NULL
};
sqlite3 *db_meta = NULL;
// SQL statements
#define SQL_STORE_CLAIM_ID \
"INSERT INTO node_instance " \
"(host_id, claim_id, date_created) VALUES (@host_id, @claim_id, UNIXEPOCH()) " \
"ON CONFLICT(host_id) DO UPDATE SET claim_id = excluded.claim_id"
#define SQL_DELETE_HOST_LABELS "DELETE FROM host_label WHERE host_id = @uuid"
#define STORE_HOST_LABEL \
"INSERT INTO host_label (host_id, source_type, label_key, label_value, date_created) VALUES "
#define STORE_CHART_LABEL \
"INSERT INTO chart_label (chart_id, source_type, label_key, label_value, date_created) VALUES "
#define STORE_HOST_OR_CHART_LABEL_VALUE "(u2h('%s'), %d,'%s','%s', unixepoch())"
#define DELETE_DIMENSION_UUID "DELETE FROM dimension WHERE dim_id = @uuid"
#define SQL_STORE_HOST_INFO \
"INSERT OR REPLACE INTO host (host_id, hostname, registry_hostname, update_every, os, timezone, tags, hops, " \
"memory_mode, abbrev_timezone, utc_offset, program_name, program_version, entries, health_enabled, last_connected) " \
"VALUES (@host_id, @hostname, @registry_hostname, @update_every, @os, @timezone, @tags, @hops, " \
"@memory_mode, @abbrev_tz, @utc_offset, @prog_name, @prog_version, @entries, @health_enabled, @last_connected)"
#define SQL_STORE_CHART \
"INSERT INTO chart (chart_id, host_id, type, id, name, family, context, title, unit, plugin, module, priority, " \
"update_every, chart_type, memory_mode, history_entries) " \
"values (@chart_id, @host_id, @type, @id, @name, @family, @context, @title, @unit, @plugin, @module, @priority, " \
"@update_every, @chart_type, @memory_mode, @history_entries) " \
"ON CONFLICT(chart_id) DO UPDATE SET type=excluded.type, id=excluded.id, name=excluded.name, " \
"family=excluded.family, context=excluded.context, title=excluded.title, unit=excluded.unit, " \
"plugin=excluded.plugin, module=excluded.module, priority=excluded.priority, update_every=excluded.update_every, " \
"chart_type=excluded.chart_type, memory_mode = excluded.memory_mode, history_entries = excluded.history_entries"
#define SQL_STORE_DIMENSION \
"INSERT INTO dimension (dim_id, chart_id, id, name, multiplier, divisor , algorithm, options) " \
"VALUES (@dim_id, @chart_id, @id, @name, @multiplier, @divisor, @algorithm, @options) " \
"ON CONFLICT(dim_id) DO UPDATE SET id=excluded.id, name=excluded.name, multiplier=excluded.multiplier, " \
"divisor=excluded.divisor, algorithm=excluded.algorithm, options=excluded.options"
#define SELECT_DIMENSION_LIST "SELECT dim_id, rowid FROM dimension WHERE rowid > @row_id"
#define SELECT_CHART_LIST "SELECT chart_id, rowid FROM chart WHERE rowid > @row_id"
#define SELECT_CHART_LABEL_LIST "SELECT chart_id, rowid FROM chart_label WHERE rowid > @row_id"
#define SQL_STORE_HOST_SYSTEM_INFO_VALUES \
"INSERT OR REPLACE INTO host_info (host_id, system_key, system_value, date_created) VALUES " \
"(@uuid, @name, @value, UNIXEPOCH())"
#define CONVERT_EXISTING_LOCALHOST "UPDATE host SET hops = 1 WHERE hops = 0 AND host_id <> @host_id"
#define DELETE_MISSING_NODE_INSTANCES "DELETE FROM node_instance WHERE host_id NOT IN (SELECT host_id FROM host)"
#define METADATA_MAINTENANCE_FIRST_CHECK (1800) // Maintenance first run after agent startup in seconds
#define METADATA_MAINTENANCE_REPEAT (60) // Repeat if last run for dimensions, charts, labels needs more work
#define METADATA_HEALTH_LOG_INTERVAL (3600) // Repeat maintenance for health
#define METADATA_DIM_CHECK_INTERVAL (3600) // Repeat maintenance for dimensions
#define METADATA_CHART_CHECK_INTERVAL (3600) // Repeat maintenance for charts
#define METADATA_LABEL_CHECK_INTERVAL (3600) // Repeat maintenance for labels
#define METADATA_RUNTIME_THRESHOLD (5) // Run time threshold for cleanup task
#define METADATA_HOST_CHECK_FIRST_CHECK (5) // First check for pending metadata
#define METADATA_HOST_CHECK_INTERVAL (30) // Repeat check for pending metadata
#define METADATA_HOST_CHECK_IMMEDIATE (5) // Repeat immediate run because we have more metadata to write
#define MAX_METADATA_CLEANUP (500) // Maximum metadata write operations (e.g deletes before retrying)
#define METADATA_MAX_BATCH_SIZE (512) // Maximum commands to execute before running the event loop
#define DATABASE_FREE_PAGES_THRESHOLD_PC (5) // Percentage of free pages to trigger vacuum
#define DATABASE_FREE_PAGES_VACUUM_PC (10) // Percentage of free pages to vacuum
enum metadata_opcode {
METADATA_DATABASE_NOOP = 0,
METADATA_DATABASE_TIMER,
METADATA_DEL_DIMENSION,
METADATA_STORE_CLAIM_ID,
METADATA_ADD_HOST_INFO,
METADATA_SCAN_HOSTS,
METADATA_LOAD_HOST_CONTEXT,
METADATA_DELETE_HOST_CHART_LABELS,
METADATA_MAINTENANCE,
METADATA_SYNC_SHUTDOWN,
METADATA_UNITTEST,
// leave this last
// we need it to check for worker utilization
METADATA_MAX_ENUMERATIONS_DEFINED
};
#define MAX_PARAM_LIST (2)
struct metadata_cmd {
enum metadata_opcode opcode;
struct completion *completion;
const void *param[MAX_PARAM_LIST];
struct metadata_cmd *prev, *next;
};
typedef enum {
METADATA_FLAG_PROCESSING = (1 << 0), // store or cleanup
METADATA_FLAG_SHUTDOWN = (1 << 1), // Shutting down
} METADATA_FLAG;
struct metadata_wc {
uv_thread_t thread;
uv_loop_t *loop;
uv_async_t async;
uv_timer_t timer_req;
time_t metadata_check_after;
METADATA_FLAG flags;
struct completion start_stop_complete;
struct completion *scan_complete;
/* FIFO command queue */
SPINLOCK cmd_queue_lock;
struct metadata_cmd *cmd_base;
};
#define metadata_flag_check(target_flags, flag) (__atomic_load_n(&((target_flags)->flags), __ATOMIC_SEQ_CST) & (flag))
#define metadata_flag_set(target_flags, flag) __atomic_or_fetch(&((target_flags)->flags), (flag), __ATOMIC_SEQ_CST)
#define metadata_flag_clear(target_flags, flag) __atomic_and_fetch(&((target_flags)->flags), ~(flag), __ATOMIC_SEQ_CST)
struct metadata_wc metasync_worker = {.loop = NULL};
//
// For unittest
//
struct thread_unittest {
int join;
unsigned added;
unsigned processed;
unsigned *done;
};
int sql_metadata_cache_stats(int op)
{
int count, dummy;
if (!REQUIRE_DB(db_meta))
return 0;
sqlite3_db_status(db_meta, op, &count, &dummy, 0);
return count;
}
static inline void set_host_node_id(RRDHOST *host, nd_uuid_t *node_id)
{
if (unlikely(!host))
return;
if (unlikely(!node_id)) {
host->node_id = UUID_ZERO;
return;
}
struct aclk_sync_cfg_t *wc = host->aclk_config;
uuid_copy(host->node_id.uuid, *node_id);
if (unlikely(!wc))
create_aclk_config(host, &host->host_id.uuid, node_id);
else
uuid_unparse_lower(*node_id, wc->node_id);
rrdpush_receiver_send_node_and_claim_id_to_child(host);
stream_path_node_id_updated(host);
}
#define SQL_SET_HOST_LABEL \
"INSERT INTO host_label (host_id, source_type, label_key, label_value, date_created) " \
"VALUES (@host_id, @source_type, @label_key, @label_value, UNIXEPOCH()) ON CONFLICT (host_id, label_key) " \
" DO UPDATE SET source_type = excluded.source_type, label_value=excluded.label_value, date_created=UNIXEPOCH()"
bool sql_set_host_label(nd_uuid_t *host_id, const char *label_key, const char *label_value)
{
sqlite3_stmt *res = NULL;
bool status = false;
if (!label_key || !label_value || !host_id)
return false;
if (!PREPARE_STATEMENT(db_meta, SQL_SET_HOST_LABEL, &res))
return 1;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
SQLITE_BIND_FAIL(done, sqlite3_bind_int(res, ++param, RRDLABEL_SRC_AUTO));
SQLITE_BIND_FAIL(done, sqlite3_bind_text(res, ++param, label_key, -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(done, sqlite3_bind_text(res, ++param, label_value, -1, SQLITE_STATIC));
param = 0;
int rc = execute_insert(res);
status = (rc == SQLITE_DONE);
if (false == status)
error_report("Failed to store node instance information, rc = %d", rc);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return status;
}
#define SQL_UPDATE_NODE_ID "UPDATE node_instance SET node_id = @node_id WHERE host_id = @host_id"
int sql_update_node_id(nd_uuid_t *host_id, nd_uuid_t *node_id)
{
sqlite3_stmt *res = NULL;
RRDHOST *host = NULL;
int rc = 2;
char host_guid[GUID_LEN + 1];
uuid_unparse_lower(*host_id, host_guid);
rrd_wrlock();
host = rrdhost_find_by_guid(host_guid);
if (likely(host))
set_host_node_id(host, node_id);
rrd_wrunlock();
if (!REQUIRE_DB(db_meta))
return 1;
if (!PREPARE_STATEMENT(db_meta, SQL_UPDATE_NODE_ID, &res))
return 1;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, node_id, sizeof(*node_id), SQLITE_STATIC));
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
param = 0;
rc = execute_insert(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to store node instance information, rc = %d", rc);
rc = sqlite3_changes(db_meta);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return rc - 1;
}
#define SQL_SELECT_NODE_ID "SELECT node_id FROM node_instance WHERE host_id = @host_id AND node_id IS NOT NULL"
int get_node_id(nd_uuid_t *host_id, nd_uuid_t *node_id)
{
sqlite3_stmt *res = NULL;
if (!REQUIRE_DB(db_meta))
return 1;
if (!PREPARE_STATEMENT(db_meta, SQL_SELECT_NODE_ID, &res))
return 1;
int param = 0, rc = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
param = 0;
rc = sqlite3_step_monitored(res);
if (likely(rc == SQLITE_ROW && node_id))
uuid_copy(*node_id, *((nd_uuid_t *) sqlite3_column_blob(res, 0)));
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return (rc == SQLITE_ROW) ? 0 : -1;
}
#define SQL_INVALIDATE_NODE_INSTANCES \
"UPDATE node_instance SET node_id = NULL WHERE EXISTS " \
"(SELECT host_id FROM node_instance WHERE host_id = @host_id AND (@claim_id IS NULL OR claim_id <> @claim_id))"
void invalidate_node_instances(nd_uuid_t *host_id, nd_uuid_t *claim_id)
{
sqlite3_stmt *res = NULL;
if (!REQUIRE_DB(db_meta))
return;
if (!PREPARE_STATEMENT(db_meta, SQL_INVALIDATE_NODE_INSTANCES, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
if (claim_id)
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, claim_id, sizeof(*claim_id), SQLITE_STATIC));
else
SQLITE_BIND_FAIL(done, sqlite3_bind_null(res, ++param));
param = 0;
int rc = execute_insert(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to invalidate node instance information, rc = %d", rc);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
}
#define SQL_GET_NODE_INSTANCE_LIST \
"SELECT ni.node_id, ni.host_id, h.hostname " \
"FROM node_instance ni, host h WHERE ni.host_id = h.host_id AND h.hops >=0"
struct node_instance_list *get_node_list(void)
{
struct node_instance_list *node_list = NULL;
sqlite3_stmt *res = NULL;
if (!REQUIRE_DB(db_meta))
return NULL;
if (!PREPARE_STATEMENT(db_meta, SQL_GET_NODE_INSTANCE_LIST, &res))
return NULL;
int row = 0;
char host_guid[UUID_STR_LEN];
while (sqlite3_step_monitored(res) == SQLITE_ROW)
row++;
if (sqlite3_reset(res) != SQLITE_OK) {
error_report("Failed to reset the prepared statement while fetching node instance information");
goto failed;
}
node_list = callocz(row + 1, sizeof(*node_list));
int max_rows = row;
row = 0;
// TODO: Check to remove lock
rrd_rdlock();
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
if (sqlite3_column_bytes(res, 0) == sizeof(nd_uuid_t))
uuid_copy(node_list[row].node_id, *((nd_uuid_t *)sqlite3_column_blob(res, 0)));
if (sqlite3_column_bytes(res, 1) == sizeof(nd_uuid_t)) {
nd_uuid_t *host_id = (nd_uuid_t *)sqlite3_column_blob(res, 1);
uuid_unparse_lower(*host_id, host_guid);
RRDHOST *host = rrdhost_find_by_guid(host_guid);
if (!host)
continue;
if (rrdhost_flag_check(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD)) {
netdata_log_info(
"ACLK: 'host:%s' skipping get node list because context is initializing", rrdhost_hostname(host));
continue;
}
uuid_copy(node_list[row].host_id, *host_id);
node_list[row].queryable = 1;
node_list[row].live =
(host == localhost || host->receiver || !(rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN))) ? 1 : 0;
node_list[row].hops = host->system_info ? host->system_info->hops :
uuid_eq(*host_id, localhost->host_id.uuid) ? 0 : 1;
node_list[row].hostname =
sqlite3_column_bytes(res, 2) ? strdupz((char *)sqlite3_column_text(res, 2)) : NULL;
}
row++;
if (row == max_rows)
break;
}
rrd_rdunlock();
failed:
SQLITE_FINALIZE(res);
return node_list;
}
#define SQL_GET_HOST_NODE_ID "SELECT node_id FROM node_instance WHERE host_id = @host_id"
void sql_load_node_id(RRDHOST *host)
{
sqlite3_stmt *res = NULL;
if (!REQUIRE_DB(db_meta))
return;
if (!PREPARE_STATEMENT(db_meta, SQL_GET_HOST_NODE_ID, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, &host->host_id.uuid, sizeof(host->host_id.uuid), SQLITE_STATIC));
param = 0;
int rc = sqlite3_step_monitored(res);
if (likely(rc == SQLITE_ROW)) {
if (likely(sqlite3_column_bytes(res, 0) == sizeof(nd_uuid_t)))
set_host_node_id(host, (nd_uuid_t *)sqlite3_column_blob(res, 0));
else
set_host_node_id(host, NULL);
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
}
#define SELECT_HOST_INFO "SELECT system_key, system_value FROM host_info WHERE host_id = @host_id"
void sql_build_host_system_info(nd_uuid_t *host_id, struct rrdhost_system_info *system_info)
{
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, SELECT_HOST_INFO, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
param = 0;
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
rrdhost_set_system_info_variable(
system_info, (char *)sqlite3_column_text(res, 0), (char *)sqlite3_column_text(res, 1));
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
}
#define SELECT_HOST_LABELS "SELECT label_key, label_value, source_type FROM host_label WHERE host_id = @host_id " \
"AND label_key IS NOT NULL AND label_value IS NOT NULL"
RRDLABELS *sql_load_host_labels(nd_uuid_t *host_id)
{
RRDLABELS *labels = NULL;
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, SELECT_HOST_LABELS, &res))
return NULL;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
param = 0;
labels = rrdlabels_create();
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
rrdlabels_add(
labels,
(const char *)sqlite3_column_text(res, 0),
(const char *)sqlite3_column_text(res, 1),
sqlite3_column_int(res, 2));
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return labels;
}
static int exec_statement_with_uuid(const char *sql, nd_uuid_t *uuid)
{
int result = 1;
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, sql, &res)) {
error_report("Failed to prepare statement %s", sql);
return 1;
}
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, uuid, sizeof(*uuid), SQLITE_STATIC));
param = 0;
int rc = execute_insert(res);
if (likely(rc == SQLITE_DONE))
result = SQLITE_OK;
else
error_report("Failed to execute %s, rc = %d", sql, rc);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return result;
}
static void recover_database(const char *sqlite_database, const char *new_sqlite_database)
{
sqlite3 *database;
int rc = sqlite3_open(sqlite_database, &database);
if (rc != SQLITE_OK)
return;
netdata_log_info("Recover %s", sqlite_database);
netdata_log_info(" to %s", new_sqlite_database);
// This will remove the -shm and -wal files when we close the database
(void) db_execute(database, "select count(*) from sqlite_master limit 0");
sqlite3_recover *recover = sqlite3_recover_init(database, "main", new_sqlite_database);
if (recover) {
rc = sqlite3_recover_run(recover);
if (rc == SQLITE_OK)
netdata_log_info("Recover complete");
else
netdata_log_error("Recover encountered an error but the database may be usable");
rc = sqlite3_recover_finish(recover);
(void) sqlite3_close(database);
if (rc == SQLITE_OK) {
rc = rename(new_sqlite_database, sqlite_database);
if (rc == 0) {
netdata_log_info("Renamed %s", new_sqlite_database);
netdata_log_info(" to %s", sqlite_database);
}
}
else
netdata_log_error("Recover failed to free resources");
}
else
(void) sqlite3_close(database);
}
static void sqlite_uuid_parse(sqlite3_context *context, int argc, sqlite3_value **argv)
{
nd_uuid_t uuid;
if ( argc != 1 ){
sqlite3_result_null(context);
return ;
}
int rc = uuid_parse((const char *) sqlite3_value_text(argv[0]), uuid);
if (rc == -1) {
sqlite3_result_null(context);
return ;
}
sqlite3_result_blob(context, &uuid, sizeof(nd_uuid_t), SQLITE_TRANSIENT);
}
void sqlite_now_usec(sqlite3_context *context, int argc, sqlite3_value **argv)
{
if (argc != 1 ){
sqlite3_result_null(context);
return ;
}
if (sqlite3_value_int(argv[0]) != 0) {
struct timespec req = {.tv_sec = 0, .tv_nsec = 1};
nanosleep(&req, NULL);
}
sqlite3_result_int64(context, (sqlite_int64) now_realtime_usec());
}
void sqlite_uuid_random(sqlite3_context *context, int argc, sqlite3_value **argv)
{
(void)argc;
(void)argv;
nd_uuid_t uuid;
uuid_generate_random(uuid);
sqlite3_result_blob(context, &uuid, sizeof(nd_uuid_t), SQLITE_TRANSIENT);
}
// Init
/*
* Initialize the SQLite database
* Return 0 on success
*/
int sql_init_meta_database(db_check_action_type_t rebuild, int memory)
{
char *err_msg = NULL;
char sqlite_database[FILENAME_MAX + 1];
int rc;
if (likely(!memory)) {
snprintfz(sqlite_database, sizeof(sqlite_database) - 1, "%s/.netdata-meta.db.recover", netdata_configured_cache_dir);
rc = unlink(sqlite_database);
snprintfz(sqlite_database, FILENAME_MAX, "%s/netdata-meta.db", netdata_configured_cache_dir);
if (rc == 0 || (rebuild & DB_CHECK_RECOVER)) {
char new_sqlite_database[FILENAME_MAX + 1];
snprintfz(new_sqlite_database, sizeof(new_sqlite_database) - 1, "%s/netdata-meta-recover.db", netdata_configured_cache_dir);
recover_database(sqlite_database, new_sqlite_database);
if (rebuild & DB_CHECK_RECOVER)
return 0;
}
snprintfz(sqlite_database, sizeof(sqlite_database) - 1, "%s/.netdata-meta.db.delete", netdata_configured_cache_dir);
rc = unlink(sqlite_database);
snprintfz(sqlite_database, FILENAME_MAX, "%s/netdata-meta.db", netdata_configured_cache_dir);
if (rc == 0) {
char new_sqlite_database[FILENAME_MAX + 1];
snprintfz(new_sqlite_database, sizeof(new_sqlite_database) - 1, "%s/netdata-meta.bad", netdata_configured_cache_dir);
rc = rename(sqlite_database, new_sqlite_database);
if (rc)
error_report("Failed to rename %s to %s", sqlite_database, new_sqlite_database);
}
// note: sqlite_database contains the right name
}
else
strncpyz(sqlite_database, ":memory:", sizeof(sqlite_database) - 1);
rc = sqlite3_open(sqlite_database, &db_meta);
if (rc != SQLITE_OK) {
error_report("Failed to initialize database at %s, due to \"%s\"", sqlite_database, sqlite3_errstr(rc));
char *error_str = get_database_extented_error(db_meta, 0, "meta_open");
if (error_str)
analytics_set_data_str(&analytics_data.netdata_fail_reason, error_str);
freez(error_str);
sqlite3_close(db_meta);
db_meta = NULL;
return 1;
}
if (rebuild & DB_CHECK_RECLAIM_SPACE) {
netdata_log_info("Reclaiming space of %s", sqlite_database);
rc = sqlite3_exec_monitored(db_meta, "VACUUM", 0, 0, &err_msg);
if (rc != SQLITE_OK) {
error_report("Failed to execute VACUUM rc = %d (%s)", rc, err_msg);
sqlite3_free(err_msg);
}
else {
(void) db_execute(db_meta, "select count(*) from sqlite_master limit 0");
(void) sqlite3_close(db_meta);
}
return 1;
}
if (rebuild & DB_CHECK_ANALYZE) {
errno_clear();
netdata_log_info("Running ANALYZE on %s", sqlite_database);
rc = sqlite3_exec_monitored(db_meta, "ANALYZE", 0, 0, &err_msg);
if (rc != SQLITE_OK) {
error_report("Failed to execute ANALYZE rc = %d (%s)", rc, err_msg);
sqlite3_free(err_msg);
}
else {
(void) db_execute(db_meta, "select count(*) from sqlite_master limit 0");
(void) sqlite3_close(db_meta);
}
return 1;
}
errno_clear();
netdata_log_info("SQLite database %s initialization", sqlite_database);
rc = sqlite3_create_function(db_meta, "u2h", 1, SQLITE_ANY | SQLITE_DETERMINISTIC, 0, sqlite_uuid_parse, 0, 0);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to register internal u2h function");
rc = sqlite3_create_function(db_meta, "now_usec", 1, SQLITE_ANY, 0, sqlite_now_usec, 0, 0);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to register internal now_usec function");
rc = sqlite3_create_function(db_meta, "uuid_random", 0, SQLITE_ANY, 0, sqlite_uuid_random, 0, 0);
if (unlikely(rc != SQLITE_OK))
error_report("Failed to register internal uuid_random function");
int target_version = DB_METADATA_VERSION;
if (likely(!memory))
target_version = perform_database_migration(db_meta, DB_METADATA_VERSION);
if (configure_sqlite_database(db_meta, target_version, "meta_config"))
return 1;
if (init_database_batch(db_meta, &database_config[0], "meta_init"))
return 1;
if (init_database_batch(db_meta, &database_cleanup[0], "meta_cleanup"))
return 1;
netdata_log_info("SQLite database initialization completed");
return 0;
}
// Metadata functions
struct query_build {
BUFFER *sql;
int count;
char uuid_str[UUID_STR_LEN];
};
#define SQL_DELETE_CHART_LABELS_BY_HOST \
"DELETE FROM chart_label WHERE chart_id in (SELECT chart_id FROM chart WHERE host_id = @host_id)"
static void delete_host_chart_labels(nd_uuid_t *host_uuid)
{
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, SQL_DELETE_CHART_LABELS_BY_HOST, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));
param = 0;
int rc = sqlite3_step_monitored(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to execute command to remove chart labels, rc = %d", rc);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
}
static int host_label_store_to_sql_callback(const char *name, const char *value, RRDLABEL_SRC ls, void *data) {
struct query_build *lb = data;
if (unlikely(!lb->count))
buffer_sprintf(lb->sql, STORE_HOST_LABEL);
else
buffer_strcat(lb->sql, ", ");
buffer_sprintf(lb->sql, STORE_HOST_OR_CHART_LABEL_VALUE, lb->uuid_str, (int) (ls & ~(RRDLABEL_FLAG_INTERNAL)), name, value);
lb->count++;
return 1;
}
static int chart_label_store_to_sql_callback(const char *name, const char *value, RRDLABEL_SRC ls, void *data) {
struct query_build *lb = data;
if (unlikely(!lb->count))
buffer_sprintf(lb->sql, STORE_CHART_LABEL);
else
buffer_strcat(lb->sql, ", ");
buffer_sprintf(lb->sql, STORE_HOST_OR_CHART_LABEL_VALUE, lb->uuid_str, (int) (ls & ~(RRDLABEL_FLAG_INTERNAL)), name, value);
lb->count++;
return 1;
}
#define SQL_DELETE_CHART_LABEL "DELETE FROM chart_label WHERE chart_id = @chart_id"
#define SQL_DELETE_CHART_LABEL_HISTORY "DELETE FROM chart_label WHERE date_created < %ld AND chart_id = @chart_id"
static void clean_old_chart_labels(RRDSET *st)
{
char sql[512];
time_t first_time_s = rrdset_first_entry_s(st);
if (unlikely(!first_time_s))
snprintfz(sql, sizeof(sql) - 1, SQL_DELETE_CHART_LABEL);
else
snprintfz(sql, sizeof(sql) - 1, SQL_DELETE_CHART_LABEL_HISTORY, first_time_s);
int rc = exec_statement_with_uuid(sql, &st->chart_uuid);
if (unlikely(rc))
error_report("METADATA: 'host:%s' Failed to clean old labels for chart %s", rrdhost_hostname(st->rrdhost), rrdset_name(st));
}
static int check_and_update_chart_labels(RRDSET *st, BUFFER *work_buffer, size_t *query_counter)
{
size_t old_version = st->rrdlabels_last_saved_version;
size_t new_version = rrdlabels_version(st->rrdlabels);
if (new_version == old_version)
return 0;
struct query_build tmp = {.sql = work_buffer, .count = 0};
uuid_unparse_lower(st->chart_uuid, tmp.uuid_str);
rrdlabels_walkthrough_read(st->rrdlabels, chart_label_store_to_sql_callback, &tmp);
buffer_strcat(work_buffer, " ON CONFLICT (chart_id, label_key) DO UPDATE SET source_type = excluded.source_type, label_value=excluded.label_value, date_created=UNIXEPOCH()");
int rc = db_execute(db_meta, buffer_tostring(work_buffer));
if (likely(!rc)) {
st->rrdlabels_last_saved_version = new_version;
(*query_counter)++;
}
clean_old_chart_labels(st);
return rc;
}
// If the machine guid has changed, then existing one with hops 0 will be marked as hops 1 (child)
void detect_machine_guid_change(nd_uuid_t *host_uuid)
{
int rc;
rc = exec_statement_with_uuid(CONVERT_EXISTING_LOCALHOST, host_uuid);
if (!rc) {
if (unlikely(db_execute(db_meta, DELETE_MISSING_NODE_INSTANCES)))
error_report("Failed to remove deleted hosts from node instances");
}
}
static int store_claim_id(nd_uuid_t *host_id, nd_uuid_t *claim_id)
{
sqlite3_stmt *res = NULL;
int rc = 0;
if (!REQUIRE_DB(db_meta))
return 1;
if (!PREPARE_STATEMENT(db_meta, SQL_STORE_CLAIM_ID, &res))
return 1;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_id, sizeof(*host_id), SQLITE_STATIC));
if (claim_id)
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param,claim_id, sizeof(*claim_id), SQLITE_STATIC));
else
SQLITE_BIND_FAIL(done, sqlite3_bind_null(res, ++param));
param = 0;
rc = execute_insert(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to store host claim id rc = %d", rc);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return rc != SQLITE_DONE;
}
static void delete_dimension_uuid(nd_uuid_t *dimension_uuid, sqlite3_stmt **action_res __maybe_unused, bool flag __maybe_unused)
{
static __thread sqlite3_stmt *res = NULL;
int rc;
if (!PREPARE_COMPILED_STATEMENT(db_meta, DELETE_DIMENSION_UUID, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, dimension_uuid, sizeof(*dimension_uuid), SQLITE_STATIC));
param = 0;
rc = sqlite3_step_monitored(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to delete dimension uuid, rc = %d", rc);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
}
//
// Store host and host system info information in the database
static int store_host_metadata(RRDHOST *host)
{
static __thread sqlite3_stmt *res = NULL;
if (!PREPARE_COMPILED_STATEMENT(db_meta, SQL_STORE_HOST_INFO, &res))
return false;
int param = 0;
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_blob(res, ++param, &host->host_id.uuid, sizeof(host->host_id.uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_hostname(host), 0));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_registry_hostname(host), 1));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, host->rrd_update_every));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_os(host), 1));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_timezone(host), 1));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, "", 1));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, host->system_info ? host->system_info->hops : 0));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, host->rrd_memory_mode));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_abbrev_timezone(host), 1));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, host->utc_offset));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_program_name(host), 1));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, rrdhost_program_version(host), 1));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int64(res, ++param, host->rrd_history_entries));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, (int ) host->health.health_enabled));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int64(res, ++param, (sqlite3_int64) host->last_connected));
int store_rc = sqlite3_step_monitored(res);
if (unlikely(store_rc != SQLITE_DONE))
error_report("Failed to store host %s, rc = %d", rrdhost_hostname(host), store_rc);
SQLITE_RESET(res);
return store_rc != SQLITE_DONE;
bind_fail:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
return 1;
}
static int add_host_sysinfo_key_value(const char *name, const char *value, nd_uuid_t *uuid)
{
static __thread sqlite3_stmt *res = NULL;
if (!REQUIRE_DB(db_meta))
return 0;
if (!PREPARE_COMPILED_STATEMENT(db_meta, SQL_STORE_HOST_SYSTEM_INFO_VALUES, &res))
return 0;
int param = 0;
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_blob(res, ++param, uuid, sizeof(*uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, name, 0));
SQLITE_BIND_FAIL(bind_fail, bind_text_null(res, ++param, value ? value : "unknown", 0));
int store_rc = sqlite3_step_monitored(res);
if (unlikely(store_rc != SQLITE_DONE))
error_report("Failed to store host info value %s, rc = %d", name, store_rc);
SQLITE_RESET(res);
return store_rc == SQLITE_DONE;
bind_fail:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
return 0;
}
static bool store_host_systeminfo(RRDHOST *host)
{
struct rrdhost_system_info *system_info = host->system_info;
if (unlikely(!system_info))
return false;
int ret = 0;
ret += add_host_sysinfo_key_value("NETDATA_CONTAINER_OS_NAME", system_info->container_os_name, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_CONTAINER_OS_ID", system_info->container_os_id, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_CONTAINER_OS_ID_LIKE", system_info->container_os_id_like, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_CONTAINER_OS_VERSION", system_info->container_os_version, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_CONTAINER_OS_VERSION_ID", system_info->container_os_version_id, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_CONTAINER_OS_DETECTION", system_info->host_os_detection, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_OS_NAME", system_info->host_os_name, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_OS_ID", system_info->host_os_id, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_OS_ID_LIKE", system_info->host_os_id_like, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_OS_VERSION", system_info->host_os_version, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_OS_VERSION_ID", system_info->host_os_version_id, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_OS_DETECTION", system_info->host_os_detection, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_KERNEL_NAME", system_info->kernel_name, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_CPU_LOGICAL_CPU_COUNT", system_info->host_cores, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_CPU_FREQ", system_info->host_cpu_freq, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_TOTAL_RAM", system_info->host_ram_total, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_TOTAL_DISK_SIZE", system_info->host_disk_space, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_KERNEL_VERSION", system_info->kernel_version, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_ARCHITECTURE", system_info->architecture, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_VIRTUALIZATION", system_info->virtualization, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_VIRT_DETECTION", system_info->virt_detection, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_CONTAINER", system_info->container, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_SYSTEM_CONTAINER_DETECTION", system_info->container_detection, &host->host_id.uuid);
ret += add_host_sysinfo_key_value("NETDATA_HOST_IS_K8S_NODE", system_info->is_k8s_node, &host->host_id.uuid);
return !(24 == ret);
}
/*
* Store a chart in the database
*/
static int store_chart_metadata(RRDSET *st)
{
static __thread sqlite3_stmt *res = NULL;
if (!PREPARE_COMPILED_STATEMENT(db_meta, SQL_STORE_CHART, &res))
return 1;
int param = 0;
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_blob(res, ++param, &st->chart_uuid, sizeof(st->chart_uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_blob(res, ++param, &st->rrdhost->host_id.uuid, sizeof(st->rrdhost->host_id.uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, string2str(st->parts.type), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, string2str(st->parts.id), -1, SQLITE_STATIC));
const char *name = string2str(st->parts.name);
if (name && *name)
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, name, -1, SQLITE_STATIC));
else
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_null(res, ++param));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, rrdset_family(st), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, rrdset_context(st), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, rrdset_title(st), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, rrdset_units(st), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, rrdset_plugin_name(st), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, rrdset_module_name(st), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, (int) st->priority));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, st->update_every));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, st->chart_type));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, st->rrd_memory_mode));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, (int) st->db.entries));
int store_rc = execute_insert(res);
if (unlikely(store_rc != SQLITE_DONE))
error_report("Failed to store chart, rc = %d", store_rc);
SQLITE_RESET(res);
return store_rc != SQLITE_DONE;
bind_fail:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
return 1;
}
/*
* Store a dimension
*/
static int store_dimension_metadata(RRDDIM *rd)
{
static __thread sqlite3_stmt *res = NULL;
int rc, param = 0;
if (!PREPARE_COMPILED_STATEMENT(db_meta, SQL_STORE_DIMENSION, &res))
return 1;
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_blob(res, ++param, &rd->metric_uuid, sizeof(rd->metric_uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_blob(res, ++param, &rd->rrdset->chart_uuid, sizeof(rd->rrdset->chart_uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, string2str(rd->id), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, string2str(rd->name), -1, SQLITE_STATIC));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, (int) rd->multiplier));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, (int ) rd->divisor));
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_int(res, ++param, rd->algorithm));
if (rrddim_option_check(rd, RRDDIM_OPTION_HIDDEN))
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_text(res, ++param, "hidden", -1, SQLITE_STATIC));
else
SQLITE_BIND_FAIL(bind_fail, sqlite3_bind_null(res, ++param));
rc = execute_insert(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to store dimension, rc = %d", rc);
SQLITE_RESET(res);
return 0;
bind_fail:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
return 1;
}
static bool dimension_can_be_deleted(nd_uuid_t *dim_uuid __maybe_unused, sqlite3_stmt **res __maybe_unused, bool flag __maybe_unused)
{
#ifdef ENABLE_DBENGINE
if(dbengine_enabled) {
bool no_retention = true;
for (size_t tier = 0; tier < storage_tiers; tier++) {
if (!multidb_ctx[tier])
continue;
time_t first_time_t = 0, last_time_t = 0;
if (rrdeng_metric_retention_by_uuid((void *) multidb_ctx[tier], dim_uuid, &first_time_t, &last_time_t)) {
if (first_time_t > 0) {
no_retention = false;
break;
}
}
}
return no_retention;
}
else
return false;
#else
return false;
#endif
}
static bool run_cleanup_loop(
sqlite3_stmt *res,
struct metadata_wc *wc,
bool (*check_cb)(nd_uuid_t *, sqlite3_stmt **, bool),
void (*action_cb)(nd_uuid_t *, sqlite3_stmt **, bool),
uint32_t *total_checked,
uint32_t *total_deleted,
uint64_t *row_id,
sqlite3_stmt **check_stmt,
sqlite3_stmt **action_stmt,
bool check_flag,
bool action_flag)
{
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
return true;
int rc = sqlite3_bind_int64(res, 1, (sqlite3_int64) *row_id);
if (unlikely(rc != SQLITE_OK))
return true;
time_t start_running = now_monotonic_sec();
bool time_expired = false;
while (!time_expired && sqlite3_step_monitored(res) == SQLITE_ROW &&
(*total_deleted < MAX_METADATA_CLEANUP && *total_checked < MAX_METADATA_CLEANUP)) {
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
break;
*row_id = sqlite3_column_int64(res, 1);
rc = check_cb((nd_uuid_t *)sqlite3_column_blob(res, 0), check_stmt, check_flag);
if (rc == true) {
action_cb((nd_uuid_t *)sqlite3_column_blob(res, 0), action_stmt, action_flag);
(*total_deleted)++;
}
(*total_checked)++;
time_expired = ((now_monotonic_sec() - start_running) > METADATA_RUNTIME_THRESHOLD);
}
return time_expired || (*total_checked == MAX_METADATA_CLEANUP) || (*total_deleted == MAX_METADATA_CLEANUP);
}
#define SQL_CHECK_CHART_EXISTENCE_IN_DIMENSION "SELECT count(1) FROM dimension WHERE chart_id = @chart_id"
#define SQL_CHECK_CHART_EXISTENCE_IN_CHART "SELECT count(1) FROM chart WHERE chart_id = @chart_id"
static bool chart_can_be_deleted(nd_uuid_t *chart_uuid, sqlite3_stmt **check_res, bool check_in_dimension)
{
int rc, result = 1;
sqlite3_stmt *res = check_res ? *check_res : NULL;
if (!res) {
if (!PREPARE_STATEMENT(
db_meta,
check_in_dimension ? SQL_CHECK_CHART_EXISTENCE_IN_DIMENSION : SQL_CHECK_CHART_EXISTENCE_IN_CHART,
&res))
return 0;
if (check_res)
*check_res = res;
}
rc = sqlite3_bind_blob(res, 1, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC);
if (unlikely(rc != SQLITE_OK)) {
error_report("Failed to bind chart uuid parameter, rc = %d", rc);
goto skip;
}
rc = sqlite3_step_monitored(res);
if (likely(rc == SQLITE_ROW))
result = sqlite3_column_int(res, 0);
skip:
if (check_res)
SQLITE_RESET(res);
else
SQLITE_FINALIZE(res);
return result == 0;
}
#define SQL_DELETE_CHART_BY_UUID "DELETE FROM chart WHERE chart_id = @chart_id"
#define SQL_DELETE_CHART_LABEL_BY_UUID "DELETE FROM chart_label WHERE chart_id = @chart_id"
static void delete_chart_uuid(nd_uuid_t *chart_uuid, sqlite3_stmt **action_res, bool label_only)
{
int rc;
sqlite3_stmt *res = action_res ? *action_res : NULL;
if (!res) {
if (!PREPARE_STATEMENT(db_meta, label_only ? SQL_DELETE_CHART_LABEL_BY_UUID : SQL_DELETE_CHART_BY_UUID, &res))
return;
if (action_res)
*action_res = res;
}
rc = sqlite3_bind_blob(res, 1, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC);
if (unlikely(rc != SQLITE_OK)) {
error_report("Failed to bind chart uuid parameter, rc = %d", rc);
goto skip;
}
rc = sqlite3_step_monitored(res);
if (unlikely(rc != SQLITE_DONE))
error_report("Failed to delete a chart uuid from the %s table, rc = %d", label_only ? "labels" : "chart", rc);
skip:
if (action_res)
SQLITE_RESET(res);
else
SQLITE_FINALIZE(res);
}
static void check_dimension_metadata(struct metadata_wc *wc)
{
static time_t next_execution_t = 0;
static uint64_t last_row_id = 0;
time_t now = now_realtime_sec();
if (!next_execution_t)
next_execution_t = now + METADATA_MAINTENANCE_FIRST_CHECK;
if (next_execution_t && next_execution_t > now)
return;
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, SELECT_DIMENSION_LIST, &res))
return;
uint32_t total_checked = 0;
uint32_t total_deleted = 0;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Checking dimensions starting after row %" PRIu64, last_row_id);
bool more_to_do = run_cleanup_loop(
res,
wc,
dimension_can_be_deleted,
delete_dimension_uuid,
&total_checked,
&total_deleted,
&last_row_id,
NULL,
NULL,
false,
false);
now = now_realtime_sec();
if (more_to_do)
next_execution_t = now + METADATA_MAINTENANCE_REPEAT;
else {
last_row_id = 0;
next_execution_t = now + METADATA_DIM_CHECK_INTERVAL;
}
nd_log(
NDLS_DAEMON,
NDLP_DEBUG,
"Dimensions checked %u, deleted %u. Checks will %s in %lld seconds",
total_checked,
total_deleted,
last_row_id ? "resume" : "restart",
(long long)(next_execution_t - now));
SQLITE_FINALIZE(res);
}
static void check_chart_metadata(struct metadata_wc *wc)
{
static time_t next_execution_t = 0;
static uint64_t last_row_id = 0;
time_t now = now_realtime_sec();
if (!next_execution_t)
next_execution_t = now + METADATA_MAINTENANCE_FIRST_CHECK;
if (next_execution_t && next_execution_t > now)
return;
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, SELECT_CHART_LIST, &res))
return;
uint32_t total_checked = 0;
uint32_t total_deleted = 0;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Checking charts starting after row %" PRIu64, last_row_id);
sqlite3_stmt *check_res = NULL;
sqlite3_stmt *action_res = NULL;
bool more_to_do = run_cleanup_loop(
res,
wc,
chart_can_be_deleted,
delete_chart_uuid,
&total_checked,
&total_deleted,
&last_row_id,
&check_res,
&action_res,
true,
false);
SQLITE_FINALIZE(check_res);
SQLITE_FINALIZE(action_res);
now = now_realtime_sec();
if (more_to_do)
next_execution_t = now + METADATA_MAINTENANCE_REPEAT;
else {
last_row_id = 0;
next_execution_t = now + METADATA_CHART_CHECK_INTERVAL;
}
nd_log(
NDLS_DAEMON,
NDLP_DEBUG,
"Charts checked %u, deleted %u. Checks will %s in %lld seconds",
total_checked,
total_deleted,
last_row_id ? "resume" : "restart",
(long long)(next_execution_t - now));
SQLITE_FINALIZE(res);
}
static void check_label_metadata(struct metadata_wc *wc)
{
static time_t next_execution_t = 0;
static uint64_t last_row_id = 0;
time_t now = now_realtime_sec();
if (!next_execution_t)
next_execution_t = now + METADATA_MAINTENANCE_FIRST_CHECK;
if (next_execution_t && next_execution_t > now)
return;
sqlite3_stmt *res = NULL;
if (!PREPARE_STATEMENT(db_meta, SELECT_CHART_LABEL_LIST, &res))
return;
uint32_t total_checked = 0;
uint32_t total_deleted = 0;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Checking charts labels starting after row %" PRIu64, last_row_id);
sqlite3_stmt *check_res = NULL;
sqlite3_stmt *action_res = NULL;
bool more_to_do = run_cleanup_loop(
res,
wc,
chart_can_be_deleted,
delete_chart_uuid,
&total_checked,
&total_deleted,
&last_row_id,
&check_res,
&action_res,
false,
true);
SQLITE_FINALIZE(check_res);
SQLITE_FINALIZE(action_res);
now = now_realtime_sec();
if (more_to_do)
next_execution_t = now + METADATA_MAINTENANCE_REPEAT;
else {
last_row_id = 0;
next_execution_t = now + METADATA_LABEL_CHECK_INTERVAL;
}
nd_log(
NDLS_DAEMON,
NDLP_DEBUG,
"Chart labels checked %u, deleted %u. Checks will %s in %lld seconds",
total_checked,
total_deleted,
last_row_id ? "resume" : "restart",
(long long)(next_execution_t - now));
SQLITE_FINALIZE(res);
}
static void cleanup_health_log(struct metadata_wc *wc)
{
static time_t next_execution_t = 0;
time_t now = now_realtime_sec();
if (!next_execution_t)
next_execution_t = now + METADATA_MAINTENANCE_FIRST_CHECK;
if (next_execution_t && next_execution_t > now)
return;
next_execution_t = now + METADATA_HEALTH_LOG_INTERVAL;
RRDHOST *host;
dfe_start_reentrant(rrdhost_root_index, host){
if (rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED))
continue;
sql_health_alarm_log_cleanup(host);
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
break;
}
dfe_done(host);
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
return;
(void) db_execute(db_meta,"DELETE FROM health_log WHERE host_id NOT IN (SELECT host_id FROM host)");
(void) db_execute(db_meta,"DELETE FROM health_log_detail WHERE health_log_id NOT IN (SELECT health_log_id FROM health_log)");
(void) db_execute(db_meta,"DELETE FROM alert_version WHERE health_log_id NOT IN (SELECT health_log_id FROM health_log)");
}
//
// EVENT LOOP STARTS HERE
//
static void metadata_free_cmd_queue(struct metadata_wc *wc)
{
spinlock_lock(&wc->cmd_queue_lock);
while(wc->cmd_base) {
struct metadata_cmd *t = wc->cmd_base;
DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(wc->cmd_base, t, prev, next);
freez(t);
}
spinlock_unlock(&wc->cmd_queue_lock);
}
static void metadata_enq_cmd(struct metadata_wc *wc, struct metadata_cmd *cmd)
{
if (cmd->opcode == METADATA_SYNC_SHUTDOWN) {
metadata_flag_set(wc, METADATA_FLAG_SHUTDOWN);
goto wakeup_event_loop;
}
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
goto wakeup_event_loop;
struct metadata_cmd *t = mallocz(sizeof(*t));
*t = *cmd;
t->prev = t->next = NULL;
spinlock_lock(&wc->cmd_queue_lock);
DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(wc->cmd_base, t, prev, next);
spinlock_unlock(&wc->cmd_queue_lock);
wakeup_event_loop:
(void) uv_async_send(&wc->async);
}
static struct metadata_cmd metadata_deq_cmd(struct metadata_wc *wc)
{
struct metadata_cmd ret;
spinlock_lock(&wc->cmd_queue_lock);
if(wc->cmd_base) {
struct metadata_cmd *t = wc->cmd_base;
DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(wc->cmd_base, t, prev, next);
ret = *t;
freez(t);
}
else {
ret.opcode = METADATA_DATABASE_NOOP;
ret.completion = NULL;
}
spinlock_unlock(&wc->cmd_queue_lock);
return ret;
}
static void async_cb(uv_async_t *handle)
{
uv_stop(handle->loop);
uv_update_time(handle->loop);
}
#define TIMER_INITIAL_PERIOD_MS (1000)
#define TIMER_REPEAT_PERIOD_MS (1000)
static void timer_cb(uv_timer_t* handle)
{
uv_stop(handle->loop);
uv_update_time(handle->loop);
struct metadata_wc *wc = handle->data;
struct metadata_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
if (wc->metadata_check_after < now_realtime_sec()) {
cmd.opcode = METADATA_SCAN_HOSTS;
metadata_enq_cmd(wc, &cmd);
}
}
void vacuum_database(sqlite3 *database, const char *db_alias, int threshold, int vacuum_pc)
{
int free_pages = get_free_page_count(database);
int total_pages = get_database_page_count(database);
if (!threshold)
threshold = DATABASE_FREE_PAGES_THRESHOLD_PC;
if (!vacuum_pc)
vacuum_pc = DATABASE_FREE_PAGES_VACUUM_PC;
if (free_pages > (total_pages * threshold / 100)) {
int do_free_pages = (int) (free_pages * vacuum_pc / 100);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "%s: Freeing %d database pages", db_alias, do_free_pages);
char sql[128];
snprintfz(sql, sizeof(sql) - 1, "PRAGMA incremental_vacuum(%d)", do_free_pages);
(void) db_execute(database, sql);
}
}
void run_metadata_cleanup(struct metadata_wc *wc)
{
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
return;
check_dimension_metadata(wc);
check_chart_metadata(wc);
check_label_metadata(wc);
cleanup_health_log(wc);
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN)))
return;
vacuum_database(db_meta, "METADATA", DATABASE_FREE_PAGES_THRESHOLD_PC, DATABASE_FREE_PAGES_VACUUM_PC);
(void) sqlite3_wal_checkpoint(db_meta, NULL);
}
struct scan_metadata_payload {
uv_work_t request;
struct metadata_wc *wc;
void *data;
BUFFER *work_buffer;
uint32_t max_count;
};
struct host_context_load_thread {
uv_thread_t thread;
RRDHOST *host;
bool busy;
bool finished;
};
static void restore_host_context(void *arg)
{
struct host_context_load_thread *hclt = arg;
RRDHOST *host = hclt->host;
usec_t started_ut = now_monotonic_usec(); (void)started_ut;
rrdhost_load_rrdcontext_data(host);
usec_t ended_ut = now_monotonic_usec(); (void)ended_ut;
rrdhost_flag_clear(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD);
aclk_queue_node_info(host, false);
nd_log(
NDLS_DAEMON,
NDLP_DEBUG,
"Contexts for host %s loaded in %0.2f ms",
rrdhost_hostname(host),
(double)(ended_ut - started_ut) / USEC_PER_MS);
__atomic_store_n(&hclt->finished, true, __ATOMIC_RELEASE);
}
// Callback after scan of hosts is done
static void after_start_host_load_context(uv_work_t *req, int status __maybe_unused)
{
struct scan_metadata_payload *data = req->data;
freez(data);
}
#define MAX_FIND_THREAD_RETRIES (10)
static void cleanup_finished_threads(struct host_context_load_thread *hclt, size_t max_thread_slots, bool wait)
{
if (!hclt)
return;
for (size_t index = 0; index < max_thread_slots; index++) {
if (__atomic_load_n(&(hclt[index].finished), __ATOMIC_RELAXED)
|| (wait && __atomic_load_n(&(hclt[index].busy), __ATOMIC_ACQUIRE))) {
int rc = uv_thread_join(&(hclt[index].thread));
if (rc)
nd_log(NDLS_DAEMON, NDLP_WARNING, "Failed to join thread, rc = %d", rc);
__atomic_store_n(&(hclt[index].busy), false, __ATOMIC_RELEASE);
__atomic_store_n(&(hclt[index].finished), false, __ATOMIC_RELEASE);
}
}
}
static size_t find_available_thread_slot(struct host_context_load_thread *hclt, size_t max_thread_slots, size_t *found_index)
{
size_t retries = MAX_FIND_THREAD_RETRIES;
while (retries--) {
size_t index = 0;
while (index < max_thread_slots) {
if (false == __atomic_load_n(&(hclt[index].busy), __ATOMIC_ACQUIRE)) {
*found_index = index;
return true;
}
index++;
}
sleep_usec(10 * USEC_PER_MS);
}
return false;
}
static void start_all_host_load_context(uv_work_t *req __maybe_unused)
{
register_libuv_worker_jobs();
struct scan_metadata_payload *data = req->data;
struct metadata_wc *wc = data->wc;
worker_is_busy(UV_EVENT_HOST_CONTEXT_LOAD);
usec_t started_ut = now_monotonic_usec(); (void)started_ut;
RRDHOST *host;
size_t max_threads = MIN(get_netdata_cpus() / 2, 6);
if (max_threads < 1)
max_threads = 1;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Using %zu threads for context loading", max_threads);
struct host_context_load_thread *hclt = max_threads > 1 ? callocz(max_threads, sizeof(*hclt)) : NULL;
size_t thread_index = 0;
dfe_start_reentrant(rrdhost_root_index, host) {
if (!rrdhost_flag_check(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD))
continue;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Loading context for host %s", rrdhost_hostname(host));
int rc = 0;
if (hclt) {
bool found_slot = false;
do {
if (metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN))
break;
cleanup_finished_threads(hclt, max_threads, false);
found_slot = find_available_thread_slot(hclt, max_threads, &thread_index);
} while (!found_slot);
if (metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN))
break;
__atomic_store_n(&hclt[thread_index].busy, true, __ATOMIC_RELAXED);
hclt[thread_index].host = host;
rc = uv_thread_create(&hclt[thread_index].thread, restore_host_context, &hclt[thread_index]);
}
// if single thread or thread creation failed
if (rc || !hclt) {
struct host_context_load_thread hclt_sync = {.host = host};
restore_host_context(&hclt_sync);
if (metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN))
break;
}
}
dfe_done(host);
cleanup_finished_threads(hclt, max_threads, true);
freez(hclt);
usec_t ended_ut = now_monotonic_usec(); (void)ended_ut;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Host contexts loaded in %0.2f ms", (double)(ended_ut - started_ut) / USEC_PER_MS);
worker_is_idle();
}
// Callback after scan of hosts is done
static void after_metadata_hosts(uv_work_t *req, int status __maybe_unused)
{
struct scan_metadata_payload *data = req->data;
struct metadata_wc *wc = data->wc;
metadata_flag_clear(wc, METADATA_FLAG_PROCESSING);
if (unlikely(wc->scan_complete))
completion_mark_complete(wc->scan_complete);
freez(data);
}
static bool metadata_scan_host(RRDHOST *host, uint32_t max_count, bool use_transaction, BUFFER *work_buffer, size_t *query_counter) {
RRDSET *st;
int rc;
bool more_to_do = false;
uint32_t scan_count = 1;
sqlite3_stmt *ml_load_stmt = NULL;
bool load_ml_models = max_count;
if (use_transaction)
(void)db_execute(db_meta, "BEGIN TRANSACTION");
rrdset_foreach_reentrant(st, host) {
if (scan_count == max_count) {
more_to_do = true;
break;
}
if(rrdset_flag_check(st, RRDSET_FLAG_METADATA_UPDATE)) {
(*query_counter)++;
rrdset_flag_clear(st, RRDSET_FLAG_METADATA_UPDATE);
scan_count++;
buffer_flush(work_buffer);
rc = check_and_update_chart_labels(st, work_buffer, query_counter);
if (unlikely(rc))
error_report("METADATA: 'host:%s': Failed to update labels for chart %s", rrdhost_hostname(host), rrdset_name(st));
else
(*query_counter)++;
rc = store_chart_metadata(st);
if (unlikely(rc))
error_report("METADATA: 'host:%s': Failed to store metadata for chart %s", rrdhost_hostname(host), rrdset_name(st));
}
RRDDIM *rd;
rrddim_foreach_read(rd, st) {
if(rrddim_flag_check(rd, RRDDIM_FLAG_METADATA_UPDATE)) {
(*query_counter)++;
rrddim_flag_clear(rd, RRDDIM_FLAG_METADATA_UPDATE);
if (rrddim_option_check(rd, RRDDIM_OPTION_HIDDEN))
rrddim_flag_set(rd, RRDDIM_FLAG_META_HIDDEN);
else
rrddim_flag_clear(rd, RRDDIM_FLAG_META_HIDDEN);
rc = store_dimension_metadata(rd);
if (unlikely(rc))
error_report("METADATA: 'host:%s': Failed to dimension metadata for chart %s. dimension %s",
rrdhost_hostname(host), rrdset_name(st),
rrddim_name(rd));
}
if(rrddim_flag_check(rd, RRDDIM_FLAG_ML_MODEL_LOAD)) {
rrddim_flag_clear(rd, RRDDIM_FLAG_ML_MODEL_LOAD);
if (likely(load_ml_models))
(void) ml_dimension_load_models(rd, &ml_load_stmt);
}
worker_is_idle();
}
rrddim_foreach_done(rd);
}
rrdset_foreach_done(st);
if (use_transaction)
(void)db_execute(db_meta, "COMMIT TRANSACTION");
SQLITE_FINALIZE(ml_load_stmt);
ml_load_stmt = NULL;
return more_to_do;
}
static void store_host_and_system_info(RRDHOST *host, size_t *query_counter)
{
if (unlikely(store_host_systeminfo(host))) {
error_report("METADATA: 'host:%s': Failed to store host updated system information in the database", rrdhost_hostname(host));
rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_INFO | RRDHOST_FLAG_METADATA_UPDATE);
}
else {
if (likely(query_counter))
(*query_counter)++;
}
if (unlikely(store_host_metadata(host))) {
error_report("METADATA: 'host:%s': Failed to store host info in the database", rrdhost_hostname(host));
rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_INFO | RRDHOST_FLAG_METADATA_UPDATE);
}
else {
if (likely(query_counter))
(*query_counter)++;
}
}
struct host_chart_label_cleanup {
Pvoid_t JudyL;
Word_t count;
};
static void do_chart_label_cleanup(struct host_chart_label_cleanup *cl_cleanup_data)
{
if (!cl_cleanup_data)
return;
Word_t Index = 0;
bool first = true;
Pvoid_t *PValue;
while ((PValue = JudyLFirstThenNext(cl_cleanup_data->JudyL, &Index, &first))) {
char *machine_guid = *PValue;
RRDHOST *host = rrdhost_find_by_guid(machine_guid);
if (likely(!host)) {
nd_uuid_t host_uuid;
if (!uuid_parse(machine_guid, host_uuid))
delete_host_chart_labels(&host_uuid);
}
freez(machine_guid);
}
JudyLFreeArray(&cl_cleanup_data->JudyL, PJE0);
freez(cl_cleanup_data);
}
// Worker thread to scan hosts for pending metadata to store
static void start_metadata_hosts(uv_work_t *req __maybe_unused)
{
register_libuv_worker_jobs();
RRDHOST *host;
int transaction_started = 0;
struct scan_metadata_payload *data = req->data;
struct metadata_wc *wc = data->wc;
BUFFER *work_buffer = data->work_buffer;
usec_t all_started_ut = now_monotonic_usec(); (void)all_started_ut;
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Checking all hosts started");
usec_t started_ut = now_monotonic_usec(); (void)started_ut;
do_chart_label_cleanup((struct host_chart_label_cleanup *) data->data);
bool run_again = false;
worker_is_busy(UV_EVENT_METADATA_STORE);
if (!data->max_count)
transaction_started = !db_execute(db_meta, "BEGIN TRANSACTION");
dfe_start_reentrant(rrdhost_root_index, host) {
if (rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED) || !rrdhost_flag_check(host, RRDHOST_FLAG_METADATA_UPDATE))
continue;
size_t query_counter = 0; (void)query_counter;
rrdhost_flag_clear(host,RRDHOST_FLAG_METADATA_UPDATE);
if (unlikely(rrdhost_flag_check(host, RRDHOST_FLAG_METADATA_LABELS))) {
rrdhost_flag_clear(host, RRDHOST_FLAG_METADATA_LABELS);
int rc = exec_statement_with_uuid(SQL_DELETE_HOST_LABELS, &host->host_id.uuid);
if (likely(!rc)) {
query_counter++;
buffer_flush(work_buffer);
struct query_build tmp = {.sql = work_buffer, .count = 0};
uuid_unparse_lower(host->host_id.uuid, tmp.uuid_str);
rrdlabels_walkthrough_read(host->rrdlabels, host_label_store_to_sql_callback, &tmp);
buffer_strcat(work_buffer, " ON CONFLICT (host_id, label_key) DO UPDATE SET source_type = excluded.source_type, label_value=excluded.label_value, date_created=UNIXEPOCH()");
rc = db_execute(db_meta, buffer_tostring(work_buffer));
if (unlikely(rc)) {
error_report("METADATA: 'host:%s': failed to update metadata host labels", rrdhost_hostname(host));
rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_LABELS | RRDHOST_FLAG_METADATA_UPDATE);
}
else
query_counter++;
} else {
error_report("METADATA: 'host:%s': failed to delete old host labels", rrdhost_hostname(host));
rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_LABELS | RRDHOST_FLAG_METADATA_UPDATE);
}
}
if (unlikely(rrdhost_flag_check(host, RRDHOST_FLAG_METADATA_CLAIMID))) {
rrdhost_flag_clear(host, RRDHOST_FLAG_METADATA_CLAIMID);
int rc;
ND_UUID uuid = claim_id_get_uuid();
if(!UUIDiszero(uuid))
rc = store_claim_id(&host->host_id.uuid, &uuid.uuid);
else
rc = store_claim_id(&host->host_id.uuid, NULL);
if (unlikely(rc))
rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_CLAIMID | RRDHOST_FLAG_METADATA_UPDATE);
else
query_counter++;
}
if (unlikely(rrdhost_flag_check(host, RRDHOST_FLAG_METADATA_INFO))) {
rrdhost_flag_clear(host, RRDHOST_FLAG_METADATA_INFO);
store_host_and_system_info(host, &query_counter);
}
// For clarity
bool use_transaction = data->max_count;
if (unlikely(metadata_scan_host(host, data->max_count, use_transaction, work_buffer, &query_counter))) {
run_again = true;
rrdhost_flag_set(host,RRDHOST_FLAG_METADATA_UPDATE);
}
usec_t ended_ut = now_monotonic_usec(); (void)ended_ut;
nd_log(
NDLS_DAEMON,
NDLP_DEBUG,
"Host %s saved metadata with %zu SQL statements, in %0.2f ms",
rrdhost_hostname(host),
query_counter,
(double)(ended_ut - started_ut) / USEC_PER_MS);
}
dfe_done(host);
if (!data->max_count && transaction_started)
transaction_started = db_execute(db_meta, "COMMIT TRANSACTION");
usec_t all_ended_ut = now_monotonic_usec(); (void)all_ended_ut;
nd_log(
NDLS_DAEMON,
NDLP_DEBUG,
"Checking all hosts completed in %0.2f ms",
(double)(all_ended_ut - all_started_ut) / USEC_PER_MS);
if (unlikely(run_again))
wc->metadata_check_after = now_realtime_sec() + METADATA_HOST_CHECK_IMMEDIATE;
else {
wc->metadata_check_after = now_realtime_sec() + METADATA_HOST_CHECK_INTERVAL;
run_metadata_cleanup(wc);
}
worker_is_idle();
}
static void metadata_event_loop(void *arg)
{
worker_register("METASYNC");
worker_register_job_name(METADATA_DATABASE_NOOP, "noop");
worker_register_job_name(METADATA_DATABASE_TIMER, "timer");
worker_register_job_name(METADATA_DEL_DIMENSION, "delete dimension");
worker_register_job_name(METADATA_STORE_CLAIM_ID, "add claim id");
worker_register_job_name(METADATA_ADD_HOST_INFO, "add host info");
worker_register_job_name(METADATA_MAINTENANCE, "maintenance");
int ret;
uv_loop_t *loop;
unsigned cmd_batch_size;
struct metadata_wc *wc = arg;
enum metadata_opcode opcode;
uv_thread_set_name_np("METASYNC");
loop = wc->loop = mallocz(sizeof(uv_loop_t));
ret = uv_loop_init(loop);
if (ret) {
netdata_log_error("uv_loop_init(): %s", uv_strerror(ret));
goto error_after_loop_init;
}
loop->data = wc;
ret = uv_async_init(wc->loop, &wc->async, async_cb);
if (ret) {
netdata_log_error("uv_async_init(): %s", uv_strerror(ret));
goto error_after_async_init;
}
wc->async.data = wc;
ret = uv_timer_init(loop, &wc->timer_req);
if (ret) {
netdata_log_error("uv_timer_init(): %s", uv_strerror(ret));
goto error_after_timer_init;
}
wc->timer_req.data = wc;
fatal_assert(0 == uv_timer_start(&wc->timer_req, timer_cb, TIMER_INITIAL_PERIOD_MS, TIMER_REPEAT_PERIOD_MS));
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Starting metadata sync thread");
struct metadata_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
metadata_flag_clear(wc, METADATA_FLAG_PROCESSING);
wc->metadata_check_after = now_realtime_sec() + METADATA_HOST_CHECK_FIRST_CHECK;
int shutdown = 0;
completion_mark_complete(&wc->start_stop_complete);
BUFFER *work_buffer = buffer_create(1024, &netdata_buffers_statistics.buffers_sqlite);
struct scan_metadata_payload *data;
struct host_chart_label_cleanup *cl_cleanup_data = NULL;
while (shutdown == 0 || (wc->flags & METADATA_FLAG_PROCESSING)) {
nd_uuid_t *uuid;
RRDHOST *host = NULL;
worker_is_idle();
uv_run(loop, UV_RUN_DEFAULT);
/* wait for commands */
cmd_batch_size = 0;
do {
if (unlikely(cmd_batch_size >= METADATA_MAX_BATCH_SIZE))
break;
cmd = metadata_deq_cmd(wc);
opcode = cmd.opcode;
if (unlikely(opcode == METADATA_DATABASE_NOOP && metadata_flag_check(wc, METADATA_FLAG_SHUTDOWN))) {
shutdown = 1;
continue;
}
++cmd_batch_size;
if (likely(opcode != METADATA_DATABASE_NOOP))
worker_is_busy(opcode);
switch (opcode) {
case METADATA_DATABASE_NOOP:
case METADATA_DATABASE_TIMER:
break;
case METADATA_DEL_DIMENSION:
uuid = (nd_uuid_t *) cmd.param[0];
if (likely(dimension_can_be_deleted(uuid, NULL, false)))
delete_dimension_uuid(uuid, NULL, false);
freez(uuid);
break;
case METADATA_STORE_CLAIM_ID:
store_claim_id((nd_uuid_t *) cmd.param[0], (nd_uuid_t *) cmd.param[1]);
freez((void *) cmd.param[0]);
freez((void *) cmd.param[1]);
break;
case METADATA_ADD_HOST_INFO:
host = (RRDHOST *) cmd.param[0];
store_host_and_system_info(host, NULL);
break;
case METADATA_SCAN_HOSTS:
if (unlikely(metadata_flag_check(wc, METADATA_FLAG_PROCESSING)))
break;
if (unittest_running)
break;
data = mallocz(sizeof(*data));
data->request.data = data;
data->wc = wc;
data->data = cl_cleanup_data;
data->work_buffer = work_buffer;
cl_cleanup_data = NULL;
if (unlikely(cmd.completion)) {
data->max_count = 0; // 0 will process all pending updates
cmd.completion = NULL; // Do not complete after launching worker (worker will do)
}
else
data->max_count = 5000;
metadata_flag_set(wc, METADATA_FLAG_PROCESSING);
if (unlikely(
uv_queue_work(loop,&data->request,
start_metadata_hosts,
after_metadata_hosts))) {
// Failed to launch worker -- let the event loop handle completion
cmd.completion = wc->scan_complete;
cl_cleanup_data = data->data;
freez(data);
metadata_flag_clear(wc, METADATA_FLAG_PROCESSING);
}
break;
case METADATA_LOAD_HOST_CONTEXT:;
if (unittest_running)
break;
data = callocz(1,sizeof(*data));
data->request.data = data;
data->wc = wc;
if (unlikely(
uv_queue_work(loop,&data->request, start_all_host_load_context,
after_start_host_load_context))) {
freez(data);
}
break;
case METADATA_DELETE_HOST_CHART_LABELS:;
if (!cl_cleanup_data)
cl_cleanup_data = callocz(1,sizeof(*cl_cleanup_data));
Pvoid_t *PValue = JudyLIns(&cl_cleanup_data->JudyL, (Word_t) ++cl_cleanup_data->count, PJE0);
if (PValue)
*PValue = (void *) cmd.param[0];
break;
case METADATA_UNITTEST:;
struct thread_unittest *tu = (struct thread_unittest *) cmd.param[0];
sleep_usec(1000); // processing takes 1ms
__atomic_fetch_add(&tu->processed, 1, __ATOMIC_SEQ_CST);
break;
default:
break;
}
if (cmd.completion)
completion_mark_complete(cmd.completion);
} while (opcode != METADATA_DATABASE_NOOP);
}
if (!uv_timer_stop(&wc->timer_req))
uv_close((uv_handle_t *)&wc->timer_req, NULL);
uv_close((uv_handle_t *)&wc->async, NULL);
int rc;
do {
rc = uv_loop_close(loop);
} while (rc != UV_EBUSY);
buffer_free(work_buffer);
freez(loop);
worker_unregister();
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Shutting down metadata thread");
completion_mark_complete(&wc->start_stop_complete);
if (wc->scan_complete) {
completion_destroy(wc->scan_complete);
freez(wc->scan_complete);
}
metadata_free_cmd_queue(wc);
return;
error_after_timer_init:
uv_close((uv_handle_t *)&wc->async, NULL);
error_after_async_init:
fatal_assert(0 == uv_loop_close(loop));
error_after_loop_init:
freez(loop);
worker_unregister();
}
void metadata_sync_shutdown(void)
{
completion_init(&metasync_worker.start_stop_complete);
struct metadata_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Sending a shutdown command");
cmd.opcode = METADATA_SYNC_SHUTDOWN;
metadata_enq_cmd(&metasync_worker, &cmd);
/* wait for metadata thread to shut down */
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Waiting for shutdown ACK");
completion_wait_for(&metasync_worker.start_stop_complete);
completion_destroy(&metasync_worker.start_stop_complete);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Shutdown complete");
}
void metadata_sync_shutdown_prepare(void)
{
static bool running = false;
if (unlikely(!metasync_worker.loop || running))
return;
running = true;
struct metadata_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
struct metadata_wc *wc = &metasync_worker;
struct completion *compl = mallocz(sizeof(*compl));
completion_init(compl);
__atomic_store_n(&wc->scan_complete, compl, __ATOMIC_RELAXED);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Sending a scan host command");
uint32_t max_wait_iterations = 2000;
while (unlikely(metadata_flag_check(&metasync_worker, METADATA_FLAG_PROCESSING)) && max_wait_iterations--) {
if (max_wait_iterations == 1999)
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Current worker is running; waiting to finish");
sleep_usec(1000);
}
cmd.opcode = METADATA_SCAN_HOSTS;
metadata_enq_cmd(&metasync_worker, &cmd);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Waiting for host scan completion");
completion_wait_for(wc->scan_complete);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "METADATA: Host scan complete; can continue with shutdown");
}
// -------------------------------------------------------------
// Init function called on agent startup
void metadata_sync_init(void)
{
struct metadata_wc *wc = &metasync_worker;
memset(wc, 0, sizeof(*wc));
completion_init(&wc->start_stop_complete);
fatal_assert(0 == uv_thread_create(&(wc->thread), metadata_event_loop, wc));
completion_wait_for(&wc->start_stop_complete);
completion_destroy(&wc->start_stop_complete);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "SQLite metadata sync initialization complete");
}
// Helpers
static inline void queue_metadata_cmd(enum metadata_opcode opcode, const void *param0, const void *param1)
{
struct metadata_cmd cmd;
cmd.opcode = opcode;
cmd.param[0] = param0;
cmd.param[1] = param1;
cmd.completion = NULL;
metadata_enq_cmd(&metasync_worker, &cmd);
}
// Public
void metaqueue_delete_dimension_uuid(nd_uuid_t *uuid)
{
if (unlikely(!metasync_worker.loop))
return;
nd_uuid_t *use_uuid = mallocz(sizeof(*uuid));
uuid_copy(*use_uuid, *uuid);
queue_metadata_cmd(METADATA_DEL_DIMENSION, use_uuid, NULL);
}
void metaqueue_store_claim_id(nd_uuid_t *host_uuid, nd_uuid_t *claim_uuid)
{
if (unlikely(!host_uuid))
return;
nd_uuid_t *local_host_uuid = mallocz(sizeof(*host_uuid));
nd_uuid_t *local_claim_uuid = NULL;
uuid_copy(*local_host_uuid, *host_uuid);
if (likely(claim_uuid)) {
local_claim_uuid = mallocz(sizeof(*claim_uuid));
uuid_copy(*local_claim_uuid, *claim_uuid);
}
queue_metadata_cmd(METADATA_STORE_CLAIM_ID, local_host_uuid, local_claim_uuid);
}
void metaqueue_host_update_info(RRDHOST *host)
{
if (unlikely(!metasync_worker.loop))
return;
queue_metadata_cmd(METADATA_ADD_HOST_INFO, host, NULL);
}
void metaqueue_ml_load_models(RRDDIM *rd)
{
rrddim_flag_set(rd, RRDDIM_FLAG_ML_MODEL_LOAD);
}
void metadata_queue_load_host_context(RRDHOST *host)
{
if (unlikely(!metasync_worker.loop))
return;
queue_metadata_cmd(METADATA_LOAD_HOST_CONTEXT, host, NULL);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Queued command to load host contexts");
}
void metadata_delete_host_chart_labels(char *machine_guid)
{
if (unlikely(!metasync_worker.loop)) {
freez(machine_guid);
return;
}
// Node machine guid is already strdup-ed
queue_metadata_cmd(METADATA_DELETE_HOST_CHART_LABELS, machine_guid, NULL);
nd_log(NDLS_DAEMON, NDLP_DEBUG, "Queued command delete chart labels for host %s", machine_guid);
}
uint64_t sqlite_get_meta_space(void)
{
return sqlite_get_db_space(db_meta);
}
//
// unitests
//
static void *unittest_queue_metadata(void *arg) {
struct thread_unittest *tu = arg;
struct metadata_cmd cmd;
cmd.opcode = METADATA_UNITTEST;
cmd.param[0] = tu;
cmd.param[1] = NULL;
cmd.completion = NULL;
metadata_enq_cmd(&metasync_worker, &cmd);
do {
__atomic_fetch_add(&tu->added, 1, __ATOMIC_SEQ_CST);
metadata_enq_cmd(&metasync_worker, &cmd);
sleep_usec(10000);
} while (!__atomic_load_n(&tu->join, __ATOMIC_RELAXED));
return arg;
}
static void *metadata_unittest_threads(void)
{
unsigned done;
struct thread_unittest tu = {
.join = 0,
.added = 0,
.processed = 0,
.done = &done,
};
// Queue messages / Time it
time_t seconds_to_run = 5;
int threads_to_create = 4;
fprintf(
stderr,
"\nChecking metadata queue using %d threads for %lld seconds...\n",
threads_to_create,
(long long)seconds_to_run);
ND_THREAD *threads[threads_to_create];
tu.join = 0;
for (int i = 0; i < threads_to_create; i++) {
char buf[100 + 1];
snprintf(buf, sizeof(buf) - 1, "META[%d]", i);
threads[i] = nd_thread_create(
buf,
NETDATA_THREAD_OPTION_DONT_LOG | NETDATA_THREAD_OPTION_JOINABLE,
unittest_queue_metadata,
&tu);
}
(void) uv_async_send(&metasync_worker.async);
sleep_usec(seconds_to_run * USEC_PER_SEC);
__atomic_store_n(&tu.join, 1, __ATOMIC_RELAXED);
for (int i = 0; i < threads_to_create; i++) {
nd_thread_join(threads[i]);
}
sleep_usec(5 * USEC_PER_SEC);
fprintf(stderr, "Added %u elements, processed %u\n", tu.added, tu.processed);
return 0;
}
int metadata_unittest(void)
{
metadata_sync_init();
// Queue items for a specific period of time
metadata_unittest_threads();
metadata_sync_shutdown();
return 0;
}