Adding upstream version 1.32.0.upstream/1.32.0

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

1 files changed, 944 insertions, 0 deletions

diff --git a/database/sqlite/sqlite_health.c b/database/sqlite/sqlite_health.c
new file mode 100644
index 000000000..116cb4f3e
--- /dev/null
+++ b/database/sqlite/sqlite_health.c
@@ -0,0 +1,944 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "sqlite_health.h"
+#include "sqlite_functions.h"
+
+#define MAX_HEALTH_SQL_SIZE 2048
+
+/* Health related SQL queries
+   Creates a health log table in sqlite, one per host guid
+*/
+#define SQL_CREATE_HEALTH_LOG_TABLE(guid) "CREATE TABLE IF NOT EXISTS health_log_%s(hostname text, unique_id int, alarm_id int, alarm_event_id int, config_hash_id blob, 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, name text, chart text, family text, exec text, recipient text, source text, units text, info text, exec_code int, new_status real, old_status real, delay int, new_value double, old_value double, last_repeat int, class text, component text, type text);", guid
+int sql_create_health_log_table(RRDHOST *host) {
+    int rc;
+    char *err_msg = NULL, command[MAX_HEALTH_SQL_SIZE + 1];
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)
+            error_report("HEALTH [%s]: Database has not been initialized", host->hostname);
+        return 1;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, SQL_CREATE_HEALTH_LOG_TABLE(uuid_str));
+
+    rc = sqlite3_exec(db_meta, command, 0, 0, &err_msg);
+    if (rc != SQLITE_OK) {
+        error_report("HEALTH [%s]: SQLite error during creation of health log table, rc = %d (%s)", host->hostname, rc, err_msg);
+        sqlite3_free(err_msg);
+        return 1;
+    }
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, "CREATE INDEX IF NOT EXISTS "
+            "health_log_index_%s ON health_log_%s (unique_id); ", uuid_str, uuid_str);
+    db_execute(command);
+
+    return 0;
+}
+
+/* Health related SQL queries
+   Updates an entry in the table
+*/
+#define SQL_UPDATE_HEALTH_LOG(guid) "UPDATE health_log_%s set updated_by_id = ?, flags = ?, exec_run_timestamp = ?, exec_code = ? where unique_id = ?;", guid
+void sql_health_alarm_log_update(RRDHOST *host, ALARM_ENTRY *ae) {
+    sqlite3_stmt *res = NULL;
+    int rc;
+    char command[MAX_HEALTH_SQL_SIZE + 1];
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)
+            error_report("HEALTH [%s]: Database has not been initialized", host->hostname);
+        return;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, SQL_UPDATE_HEALTH_LOG(uuid_str));
+
+    rc = sqlite3_prepare_v2(db_meta, command, -1, &res, 0);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("HEALTH [%s]: Failed to prepare statement for SQL_UPDATE_HEALTH_LOG", host->hostname);
+        return;
+    }
+
+    rc = sqlite3_bind_int64(res, 1, (sqlite3_int64) ae->updated_by_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind updated_by_id parameter for SQL_UPDATE_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 2, (sqlite3_int64) ae->flags);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind flags parameter for SQL_UPDATE_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 3, (sqlite3_int64) ae->exec_run_timestamp);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind exec_run_timestamp parameter for SQL_UPDATE_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int(res, 4, ae->exec_code);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind exec_code parameter for SQL_UPDATE_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 5, (sqlite3_int64) ae->unique_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind unique_id parameter for SQL_UPDATE_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = execute_insert(res);
+    if (unlikely(rc != SQLITE_DONE)) {
+        error_report("HEALTH [%s]: Failed to update health log, rc = %d", host->hostname, rc);
+    }
+
+    failed:
+    if (unlikely(sqlite3_finalize(res) != SQLITE_OK))
+        error_report("HEALTH [%s]: Failed to finalize the prepared statement for updating health log.", host->hostname);
+
+    return;
+}
+
+/* Health related SQL queries
+   Inserts an entry in the table
+*/
+#define SQL_INSERT_HEALTH_LOG(guid) "INSERT INTO health_log_%s(hostname, unique_id, alarm_id, alarm_event_id, " \
+    "config_hash_id, updated_by_id, updates_id, when_key, duration, non_clear_duration, flags, " \
+    "exec_run_timestamp, delay_up_to_timestamp, name, chart, family, exec, recipient, source, " \
+    "units, info, exec_code, new_status, old_status, delay, new_value, old_value, last_repeat, " \
+    "class, component, type) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?);", guid
+
+void sql_health_alarm_log_insert(RRDHOST *host, ALARM_ENTRY *ae) {
+    sqlite3_stmt *res = NULL;
+    int rc;
+    char command[MAX_HEALTH_SQL_SIZE + 1];
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)
+            error_report("HEALTH [%s]: Database has not been initialized", host->hostname);
+        return;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, SQL_INSERT_HEALTH_LOG(uuid_str));
+
+    rc = sqlite3_prepare_v2(db_meta, command, -1, &res, 0);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("HEALTH [%s]: Failed to prepare statement for SQL_INSERT_HEALTH_LOG", host->hostname);
+        return;
+    }
+
+    rc = sqlite3_bind_text(res, 1, host->hostname, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind hostname parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 2, (sqlite3_int64) ae->unique_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind unique_id parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 3, (sqlite3_int64) ae->alarm_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind alarm_id parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 4, (sqlite3_int64) ae->alarm_event_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind alarm_event_id parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_blob(res, 5, &ae->config_hash_id, sizeof(ae->config_hash_id), SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind config_hash_id parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 6, (sqlite3_int64) ae->updated_by_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind updated_by_id parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 7, (sqlite3_int64) ae->updates_id);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind updates_id parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 8, (sqlite3_int64) ae->when);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind when parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 9, (sqlite3_int64) ae->duration);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind duration parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 10, (sqlite3_int64) ae->non_clear_duration);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind non_clear_duration parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 11, (sqlite3_int64) ae->flags);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind flags parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 12, (sqlite3_int64) ae->exec_run_timestamp);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind exec_run_timestamp parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 13, (sqlite3_int64) ae->delay_up_to_timestamp);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind delay_up_to_timestamp parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 14, ae->name, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind name parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 15, ae->chart, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind chart parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 16, ae->family, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind family parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 17, ae->exec, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind exec parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 18, ae->recipient, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind recipient parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 19, ae->source, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind source parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 20, ae->units, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind host_id parameter to store node instance information");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 21, ae->info, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind info parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int(res, 22, ae->exec_code);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind exec_code parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int(res, 23, ae->new_status);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind new_status parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int(res, 24, ae->old_status);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind old_status parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int(res, 25, ae->delay);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind delay parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_double(res, 26, ae->new_value);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind new_value parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_double(res, 27, ae->old_value);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind old_value parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_int64(res, 28, (sqlite3_int64) ae->last_repeat);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind last_repeat parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 29, ae->classification, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind classification parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 30, ae->component, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind component parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = sqlite3_bind_text(res, 31, ae->type, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to bind type parameter for SQL_INSERT_HEALTH_LOG");
+        goto failed;
+    }
+
+    rc = execute_insert(res);
+    if (unlikely(rc != SQLITE_DONE)) {
+        error_report("HEALTH [%s]: Failed to execute SQL_INSERT_HEALTH_LOG, rc = %d", host->hostname, rc);
+        goto failed;
+    }
+
+    ae->flags |= HEALTH_ENTRY_FLAG_SAVED;
+    host->health_log_entries_written++;
+
+    failed:
+    if (unlikely(sqlite3_finalize(res) != SQLITE_OK))
+        error_report("HEALTH [%s]: Failed to finalize the prepared statement for inserting to health log.", host->hostname);
+
+    return;
+}
+
+void sql_health_alarm_log_save(RRDHOST *host, ALARM_ENTRY *ae)
+{
+    if (ae->flags & HEALTH_ENTRY_FLAG_SAVED)
+        sql_health_alarm_log_update(host, ae);
+    else
+        sql_health_alarm_log_insert(host, ae);
+}
+
+/* Health related SQL queries
+   Cleans up the health_log table.
+*/
+#define SQL_CLEANUP_HEALTH_LOG(guid,guid2,limit) "DELETE from health_log_%s where unique_id in (SELECT unique_id from health_log_%s order by unique_id asc LIMIT %lu);", guid, guid2, limit
+void sql_health_alarm_log_cleanup(RRDHOST *host) {
+    sqlite3_stmt *res = NULL;
+    static size_t rotate_every = 0;
+    int rc;
+    char command[MAX_HEALTH_SQL_SIZE + 1];
+
+    if(unlikely(rotate_every == 0)) {
+        rotate_every = (size_t)config_get_number(CONFIG_SECTION_HEALTH, "rotate log every lines", 2000);
+        if(rotate_every < 100) rotate_every = 100;
+    }
+
+    if(likely(host->health_log_entries_written < rotate_every)) {
+        return;
+    }
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)
+            error_report("Database has not been initialized");
+        return;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, SQL_CLEANUP_HEALTH_LOG(uuid_str, uuid_str, host->health_log_entries_written - rotate_every));
+
+    rc = sqlite3_prepare_v2(db_meta, command, -1, &res, 0);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to prepare statement to cleanup health log table");
+        return;
+    }
+
+    rc = sqlite3_step(res);
+    if (unlikely(rc != SQLITE_DONE))
+        error_report("Failed to cleanup health log table, rc = %d", rc);
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize the prepared statement to cleanup health log table");
+
+    host->health_log_entries_written = rotate_every;
+
+    sql_aclk_alert_clean_dead_entries(host);
+}
+
+/* Health related SQL queries
+   Get a count of rows from health log table
+*/
+#define SQL_COUNT_HEALTH_LOG(guid) "SELECT count(1) FROM health_log_%s;", guid
+void sql_health_alarm_log_count(RRDHOST *host) {
+    sqlite3_stmt *res = NULL;
+    int rc;
+    char command[MAX_HEALTH_SQL_SIZE + 1];
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)
+            error_report("Database has not been initialized");
+        return;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, SQL_COUNT_HEALTH_LOG(uuid_str));
+
+    rc = sqlite3_prepare_v2(db_meta, command, -1, &res, 0);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to prepare statement to count health log entries from db");
+        return;
+    }
+
+    rc = sqlite3_step(res);
+    if (likely(rc == SQLITE_ROW))
+        host->health_log_entries_written = (size_t) sqlite3_column_int64(res, 0);
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize the prepared statement to count health log entries from db");
+
+    info("HEALTH [%s]: Table health_log_%s, contains %lu entries.", host->hostname, uuid_str, host->health_log_entries_written);
+}
+
+/* Health related SQL queries
+   Load from the health log table
+*/
+#define SQL_LOAD_HEALTH_LOG(guid,limit) "SELECT hostname, unique_id, alarm_id, alarm_event_id, config_hash_id, updated_by_id, updates_id, when_key, duration, non_clear_duration, flags, exec_run_timestamp, delay_up_to_timestamp, name, chart, family, exec, recipient, source, units, info, exec_code, new_status, old_status, delay, new_value, old_value, last_repeat, class, component, type FROM (SELECT hostname, unique_id, alarm_id, alarm_event_id, config_hash_id, updated_by_id, updates_id, when_key, duration, non_clear_duration, flags, exec_run_timestamp, delay_up_to_timestamp, name, chart, family, exec, recipient, source, units, info, exec_code, new_status, old_status, delay, new_value, old_value, last_repeat, class, component, type FROM health_log_%s order by unique_id desc limit %u) order by unique_id asc;", guid, limit
+void sql_health_alarm_log_load(RRDHOST *host) {
+    sqlite3_stmt *res = NULL;
+    int rc;
+    ssize_t errored = 0, loaded = 0;
+    char command[MAX_HEALTH_SQL_SIZE + 1];
+
+    host->health_log_entries_written = 0;
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)
+            error_report("HEALTH [%s]: Database has not been initialized", host->hostname);
+        return;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    snprintfz(command, MAX_HEALTH_SQL_SIZE, SQL_LOAD_HEALTH_LOG(uuid_str, host->health_log.max));
+
+    rc = sqlite3_prepare_v2(db_meta, command, -1, &res, 0);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("HEALTH [%s]: Failed to prepare sql statement to load health log.", host->hostname);
+        return;
+    }
+
+    netdata_rwlock_rdlock(&host->health_log.alarm_log_rwlock);
+
+    while (sqlite3_step(res) == SQLITE_ROW) {
+        ALARM_ENTRY *ae = NULL;
+
+        // check that we have valid ids
+        uint32_t unique_id = (uint32_t) sqlite3_column_int64(res, 1);
+        if(!unique_id) {
+            error_report("HEALTH [%s]: Got invalid unique id. Ignoring it.", host->hostname);
+            errored++;
+            continue;
+        }
+
+        uint32_t alarm_id = (uint32_t) sqlite3_column_int64(res, 2);
+        if(!alarm_id) {
+            error_report("HEALTH [%s]: Got invalid alarm id. Ignoring it.", host->hostname);
+            errored++;
+            continue;
+        }
+
+        //need name, chart and family
+        if (sqlite3_column_type(res, 13) == SQLITE_NULL) {
+            error_report("HEALTH [%s]: Got null name field. Ignoring it.", host->hostname);
+            errored++;
+            continue;
+        }
+
+        if (sqlite3_column_type(res, 14) == SQLITE_NULL) {
+            error_report("HEALTH [%s]: Got null chart field. Ignoring it.", host->hostname);
+            errored++;
+            continue;
+        }
+
+        if (sqlite3_column_type(res, 15) == SQLITE_NULL) {
+            error_report("HEALTH [%s]: Got null family field. Ignoring it.", host->hostname);
+            errored++;
+            continue;
+        }
+
+        // Check if we got last_repeat field
+        time_t last_repeat = 0;
+        last_repeat = (time_t)sqlite3_column_int64(res, 27);
+
+        RRDCALC *rc = alarm_max_last_repeat(host, (char *) sqlite3_column_text(res, 14), simple_hash((char *) sqlite3_column_text(res, 14)));
+        if (!rc) {
+            for(rc = host->alarms; rc ; rc = rc->next) {
+                RRDCALC *rdcmp  = (RRDCALC *) avl_insert_lock(&(host)->alarms_idx_name, (avl_t *)rc);
+                if(rdcmp != rc) {
+                    error("Cannot insert the alarm index ID using log %s", rc->name);
+                }
+            }
+
+            rc = alarm_max_last_repeat(host, (char *) sqlite3_column_text(res, 14), simple_hash((char *) sqlite3_column_text(res, 14)));
+        }
+
+        if(unlikely(rc)) {
+            if (rrdcalc_isrepeating(rc)) {
+                rc->last_repeat = last_repeat;
+                // We iterate through repeating alarm entries only to
+                // find the latest last_repeat timestamp. Otherwise,
+                // there is no need to keep them in memory.
+                continue;
+            }
+        }
+
+        ae = callocz(1, sizeof(ALARM_ENTRY));
+
+        ae->unique_id = unique_id;
+        ae->alarm_id = alarm_id;
+
+        if (sqlite3_column_type(res, 4) != SQLITE_NULL)
+            uuid_copy(ae->config_hash_id, *((uuid_t *) sqlite3_column_blob(res, 4)));
+
+        ae->alarm_event_id = (uint32_t) sqlite3_column_int64(res, 3);
+        ae->updated_by_id = (uint32_t) sqlite3_column_int64(res, 5);
+        ae->updates_id = (uint32_t) sqlite3_column_int64(res, 6);
+
+        ae->when = (time_t) sqlite3_column_int64(res, 7);
+        ae->duration = (time_t) sqlite3_column_int64(res, 8);
+        ae->non_clear_duration = (time_t) sqlite3_column_int64(res, 9);
+
+        ae->flags = (uint32_t) sqlite3_column_int64(res, 10);
+        ae->flags |= HEALTH_ENTRY_FLAG_SAVED;
+
+        ae->exec_run_timestamp = (time_t) sqlite3_column_int64(res, 11);
+        ae->delay_up_to_timestamp = (time_t) sqlite3_column_int64(res, 12);
+
+        ae->name = strdupz((char *) sqlite3_column_text(res, 13));
+        ae->hash_name = simple_hash(ae->name);
+
+        ae->chart = strdupz((char *) sqlite3_column_text(res, 14));
+        ae->hash_chart = simple_hash(ae->chart);
+
+        ae->family = strdupz((char *) sqlite3_column_text(res, 15));
+
+        if (sqlite3_column_type(res, 16) != SQLITE_NULL)
+            ae->exec = strdupz((char *) sqlite3_column_text(res, 16));
+        else
+            ae->exec = NULL;
+
+        if (sqlite3_column_type(res, 17) != SQLITE_NULL)
+            ae->recipient = strdupz((char *) sqlite3_column_text(res, 17));
+        else
+            ae->recipient = NULL;
+
+        if (sqlite3_column_type(res, 18) != SQLITE_NULL)
+            ae->source = strdupz((char *) sqlite3_column_text(res, 18));
+        else
+            ae->source = NULL;
+
+        if (sqlite3_column_type(res, 19) != SQLITE_NULL)
+            ae->units = strdupz((char *) sqlite3_column_text(res, 19));
+        else
+            ae->units = NULL;
+
+        if (sqlite3_column_type(res, 20) != SQLITE_NULL)
+            ae->info = strdupz((char *) sqlite3_column_text(res, 20));
+        else
+            ae->info = NULL;
+
+        ae->exec_code   = (int) sqlite3_column_int(res, 21);
+        ae->new_status  = (RRDCALC_STATUS) sqlite3_column_int(res, 22);
+        ae->old_status  = (RRDCALC_STATUS)sqlite3_column_int(res, 23);
+        ae->delay       = (int) sqlite3_column_int(res, 24);
+
+        ae->new_value   = (calculated_number) sqlite3_column_double(res, 25);
+        ae->old_value   = (calculated_number) sqlite3_column_double(res, 26);
+
+        ae->last_repeat = last_repeat;
+
+        if (sqlite3_column_type(res, 28) != SQLITE_NULL)
+            ae->classification = strdupz((char *) sqlite3_column_text(res, 28));
+        else
+            ae->classification = NULL;
+
+        if (sqlite3_column_type(res, 29) != SQLITE_NULL)
+            ae->component = strdupz((char *) sqlite3_column_text(res, 29));
+        else
+            ae->component = NULL;
+
+        if (sqlite3_column_type(res, 30) != SQLITE_NULL)
+            ae->type = strdupz((char *) sqlite3_column_text(res, 30));
+        else
+            ae->type = NULL;
+
+        char value_string[100 + 1];
+        freez(ae->old_value_string);
+        freez(ae->new_value_string);
+        ae->old_value_string = strdupz(format_value_and_unit(value_string, 100, ae->old_value, ae->units, -1));
+        ae->new_value_string = strdupz(format_value_and_unit(value_string, 100, ae->new_value, ae->units, -1));
+
+        ae->next = host->health_log.alarms;
+        host->health_log.alarms = ae;
+
+        if(unlikely(ae->unique_id > host->health_max_unique_id))
+            host->health_max_unique_id = ae->unique_id;
+
+        if(unlikely(ae->alarm_id >= host->health_max_alarm_id))
+            host->health_max_alarm_id = ae->alarm_id;
+
+        loaded++;
+    }
+
+    netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock);
+
+    if(!host->health_max_unique_id) host->health_max_unique_id = (uint32_t)now_realtime_sec();
+    if(!host->health_max_alarm_id)  host->health_max_alarm_id  = (uint32_t)now_realtime_sec();
+
+    host->health_log.next_log_id = host->health_max_unique_id + 1;
+    if (unlikely(!host->health_log.next_alarm_id || host->health_log.next_alarm_id <= host->health_max_alarm_id))
+        host->health_log.next_alarm_id = host->health_max_alarm_id + 1;
+
+    info("HEALTH [%s]: Table health_log_%s, loaded %zd alarm entries, errors in %zd entries.", host->hostname, uuid_str, loaded, errored);
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize the health log read statement");
+
+    sql_health_alarm_log_count(host);
+}
+
+/*
+ * Store an alert config hash in the database
+ */
+#define SQL_STORE_ALERT_CONFIG_HASH "insert or replace into alert_hash (hash_id, date_updated, alarm, template, " \
+    "on_key, class, component, type, os, hosts, lookup, every, units, calc, families, plugin, module, " \
+    "charts, green, red, warn, crit, exec, to_key, info, delay, options, repeat, host_labels, " \
+    "p_db_lookup_dimensions, p_db_lookup_method, p_db_lookup_options, p_db_lookup_after, " \
+    "p_db_lookup_before, p_update_every) values (?1,strftime('%s'),?2,?3,?4,?5,?6,?7,?8,?9,?10,?11,?12," \
+    "?13,?14,?15,?16,?17,?18,?19,?20,?21,?22,?23,?24,?25,?26,?27,?28,?29,?30,?31,?32,?33,?34);"
+
+int sql_store_alert_config_hash(uuid_t *hash_id, struct alert_config *cfg)
+{
+    static __thread sqlite3_stmt *res = NULL;
+    int rc, param = 0;
+
+    if (unlikely(!db_meta)) {
+        if (default_rrd_memory_mode != RRD_MEMORY_MODE_DBENGINE)
+            return 0;
+        error_report("Database has not been initialized");
+        return 1;
+    }
+
+    if (unlikely(!res)) {
+        rc = prepare_statement(db_meta, SQL_STORE_ALERT_CONFIG_HASH, &res);
+        if (unlikely(rc != SQLITE_OK)) {
+            error_report("Failed to prepare statement to store alert configuration, rc = %d", rc);
+            return 1;
+        }
+    }
+
+    param++;
+    rc = sqlite3_bind_blob(res, 1, hash_id, sizeof(*hash_id), SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    if (cfg->alarm && *cfg->alarm)
+        rc = sqlite3_bind_text(res, 2, cfg->alarm, -1, SQLITE_STATIC);
+    else
+        rc = sqlite3_bind_null(res, 2);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    if (cfg->template_key && *cfg->template_key)
+        rc = sqlite3_bind_text(res, 3, cfg->template_key, -1, SQLITE_STATIC);
+    else
+        rc = sqlite3_bind_null(res, 3);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 4, cfg->on, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 5, cfg->classification, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 6, cfg->component, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 7, cfg->type, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 8, cfg->os, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 9, cfg->host, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 10, cfg->lookup, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 11, cfg->every, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 12, cfg->units, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 13, cfg->calc, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 14, cfg->families, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 15, cfg->plugin, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 16, cfg->module, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 17, cfg->charts, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 18, cfg->green, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 19, cfg->red, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 20, cfg->warn, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 21, cfg->crit, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 22, cfg->exec, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 23, cfg->to, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 24, cfg->info, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 25, cfg->delay, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 26, cfg->options, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 27, cfg->repeat, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    param++;
+    rc = sqlite3_bind_text(res, 28, cfg->host_labels, -1, SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    if (cfg->p_db_lookup_after) {
+        param++;
+        rc = sqlite3_bind_text(res, 29, cfg->p_db_lookup_dimensions, -1, SQLITE_STATIC);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+
+        param++;
+        rc = sqlite3_bind_text(res, 30, cfg->p_db_lookup_method, -1, SQLITE_STATIC);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+
+        param++;
+        rc = sqlite3_bind_int(res, 31, cfg->p_db_lookup_options);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+
+        param++;
+        rc = sqlite3_bind_int(res, 32, cfg->p_db_lookup_after);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+
+        param++;
+        rc = sqlite3_bind_int(res, 33, cfg->p_db_lookup_before);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+    } else {
+        param++;
+        rc = sqlite3_bind_null(res, 29);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+        param++;
+        rc = sqlite3_bind_null(res, 30);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+        param++;
+        rc = sqlite3_bind_null(res, 31);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+        param++;
+        rc = sqlite3_bind_null(res, 32);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+        param++;
+        rc = sqlite3_bind_null(res, 33);
+        if (unlikely(rc != SQLITE_OK))
+            goto bind_fail;
+    }
+
+    param++;
+    rc = sqlite3_bind_int(res, 34, cfg->p_update_every);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    rc = execute_insert(res);
+    if (unlikely(rc != SQLITE_DONE))
+        error_report("Failed to store alert config, rc = %d", rc);
+
+    rc = sqlite3_reset(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to reset statement in alert hash_id store function, rc = %d", rc);
+
+    return 0;
+
+    bind_fail:
+    error_report("Failed to bind parameter %d to store alert hash_id, rc = %d", param, rc);
+    rc = sqlite3_reset(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to reset statement in alert hash_id store function, rc = %d", rc);
+    return 1;
+}
+
+#define DIGEST_ALERT_CONFIG_VAL(v) ((v) ? EVP_DigestUpdate(evpctx, (v), strlen((v))) : EVP_DigestUpdate(evpctx, "", 1))
+int alert_hash_and_store_config(
+    uuid_t hash_id,
+    struct alert_config *cfg)
+{
+    EVP_MD_CTX *evpctx;
+    unsigned char hash_value[EVP_MAX_MD_SIZE];
+    unsigned int hash_len;
+    evpctx = EVP_MD_CTX_create();
+    EVP_DigestInit_ex(evpctx, EVP_sha256(), NULL);
+
+    DIGEST_ALERT_CONFIG_VAL(cfg->alarm);
+    DIGEST_ALERT_CONFIG_VAL(cfg->template_key);
+    DIGEST_ALERT_CONFIG_VAL(cfg->os);
+    DIGEST_ALERT_CONFIG_VAL(cfg->host);
+    DIGEST_ALERT_CONFIG_VAL(cfg->on);
+    DIGEST_ALERT_CONFIG_VAL(cfg->families);
+    DIGEST_ALERT_CONFIG_VAL(cfg->plugin);
+    DIGEST_ALERT_CONFIG_VAL(cfg->module);
+    DIGEST_ALERT_CONFIG_VAL(cfg->charts);
+    DIGEST_ALERT_CONFIG_VAL(cfg->lookup);
+    DIGEST_ALERT_CONFIG_VAL(cfg->calc);
+    DIGEST_ALERT_CONFIG_VAL(cfg->every);
+    DIGEST_ALERT_CONFIG_VAL(cfg->green);
+    DIGEST_ALERT_CONFIG_VAL(cfg->red);
+    DIGEST_ALERT_CONFIG_VAL(cfg->warn);
+    DIGEST_ALERT_CONFIG_VAL(cfg->crit);
+    DIGEST_ALERT_CONFIG_VAL(cfg->exec);
+    DIGEST_ALERT_CONFIG_VAL(cfg->to);
+    DIGEST_ALERT_CONFIG_VAL(cfg->units);
+    DIGEST_ALERT_CONFIG_VAL(cfg->info);
+    DIGEST_ALERT_CONFIG_VAL(cfg->classification);
+    DIGEST_ALERT_CONFIG_VAL(cfg->component);
+    DIGEST_ALERT_CONFIG_VAL(cfg->type);
+    DIGEST_ALERT_CONFIG_VAL(cfg->delay);
+    DIGEST_ALERT_CONFIG_VAL(cfg->options);
+    DIGEST_ALERT_CONFIG_VAL(cfg->repeat);
+    DIGEST_ALERT_CONFIG_VAL(cfg->host_labels);
+
+    EVP_DigestFinal_ex(evpctx, hash_value, &hash_len);
+    EVP_MD_CTX_destroy(evpctx);
+    fatal_assert(hash_len > sizeof(uuid_t));
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower(*((uuid_t *)&hash_value), uuid_str);
+    uuid_copy(hash_id, *((uuid_t *)&hash_value));
+
+    /* store everything, so it can be recreated when not in memory or just a subset ? */
+    (void)sql_store_alert_config_hash( (uuid_t *)&hash_value, cfg);
+
+    return 1;
+}