Adding upstream version 1.37.1.upstream/1.37.1upstream

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

1 files changed, 1079 insertions, 0 deletions

diff --git a/database/sqlite/sqlite_aclk_alert.c b/database/sqlite/sqlite_aclk_alert.c
new file mode 100644
index 0000000..47663a8
--- /dev/null
+++ b/database/sqlite/sqlite_aclk_alert.c
@@ -0,0 +1,1079 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "sqlite_functions.h"
+#include "sqlite_aclk_alert.h"
+
+#ifdef ENABLE_ACLK
+#include "../../aclk/aclk_alarm_api.h"
+#include "../../aclk/aclk.h"
+#endif
+
+time_t removed_when(uint32_t alarm_id, uint32_t before_unique_id, uint32_t after_unique_id, char *uuid_str) {
+    sqlite3_stmt *res = NULL;
+    int rc = 0;
+    time_t when = 0;
+    char sql[ACLK_SYNC_QUERY_SIZE];
+
+    snprintfz(sql,ACLK_SYNC_QUERY_SIZE-1, "select when_key from health_log_%s where alarm_id = %u " \
+                                          "and unique_id > %u and unique_id < %u " \
+                                          "and new_status = -2;", uuid_str, alarm_id, after_unique_id, before_unique_id);
+
+    rc = sqlite3_prepare_v2(db_meta, sql, -1, &res, 0);
+    if (rc != SQLITE_OK) {
+        error_report("Failed to prepare statement when trying to find removed gap.");
+        return 0;
+    }
+
+    rc = sqlite3_step_monitored(res);
+    if (likely(rc == SQLITE_ROW)) {
+        when = (time_t) sqlite3_column_int64(res, 0);
+    }
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize statement when trying to find removed gap, rc = %d", rc);
+
+    return when;
+}
+
+void update_filtered(ALARM_ENTRY *ae, uint32_t unique_id, char *uuid_str) {
+    char sql[ACLK_SYNC_QUERY_SIZE];
+    snprintfz(sql, ACLK_SYNC_QUERY_SIZE-1, "UPDATE aclk_alert_%s SET filtered_alert_unique_id = %u where filtered_alert_unique_id = %u", uuid_str, ae->unique_id, unique_id);
+    sqlite3_exec_monitored(db_meta, sql, 0, 0, NULL);
+    ae->flags |= HEALTH_ENTRY_FLAG_ACLK_QUEUED;
+}
+
+#define MAX_REMOVED_PERIOD 86400
+//decide if some events should be sent or not
+int should_send_to_cloud(RRDHOST *host, ALARM_ENTRY *ae)
+{
+    sqlite3_stmt *res = NULL;
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+    int send = 1, rc = 0;
+
+    if (ae->new_status == RRDCALC_STATUS_REMOVED || ae->new_status == RRDCALC_STATUS_UNINITIALIZED) {
+        return 0;
+    }
+
+    if (unlikely(uuid_is_null(ae->config_hash_id))) 
+        return 0;
+
+    char sql[ACLK_SYNC_QUERY_SIZE];
+    uuid_t config_hash_id;
+    RRDCALC_STATUS status;
+    uint32_t unique_id;
+
+    //get the previous sent event of this alarm_id
+    //base the search on the last filtered event
+    snprintfz(sql,ACLK_SYNC_QUERY_SIZE-1, "select hl.new_status, hl.config_hash_id, hl.unique_id from health_log_%s hl, aclk_alert_%s aa \
+                         where hl.unique_id = aa.filtered_alert_unique_id \
+                         and hl.alarm_id = %u \
+                         order by alarm_event_id desc LIMIT 1;", uuid_str, uuid_str, ae->alarm_id);
+
+    rc = sqlite3_prepare_v2(db_meta, sql, -1, &res, 0);
+    if (rc != SQLITE_OK) {
+        error_report("Failed to prepare statement when trying to filter alert events.");
+        send = 1;
+        return send;
+    }
+
+    rc = sqlite3_step_monitored(res);
+    if (likely(rc == SQLITE_ROW)) {
+        status  = (RRDCALC_STATUS) sqlite3_column_int(res, 0);
+        if (sqlite3_column_type(res, 1) != SQLITE_NULL)
+            uuid_copy(config_hash_id, *((uuid_t *) sqlite3_column_blob(res, 1)));
+        unique_id = (uint32_t) sqlite3_column_int64(res, 2);
+        
+    } else {
+        send = 1;
+        goto done;
+    }
+
+    if (ae->new_status != (RRDCALC_STATUS)status) {
+        send = 1;
+        goto done;
+    }
+
+    if (uuid_compare(ae->config_hash_id, config_hash_id)) {
+        send = 1;
+        goto done;
+    }
+
+    //same status, same config
+    if (ae->new_status == RRDCALC_STATUS_CLEAR || ae->new_status == RRDCALC_STATUS_UNDEFINED) {
+        send = 0;
+        update_filtered(ae, unique_id, uuid_str);
+        goto done;
+    }
+
+    //detect a long off period of the agent, TODO make global
+    if (ae->new_status == RRDCALC_STATUS_WARNING || ae->new_status == RRDCALC_STATUS_CRITICAL) {
+        time_t when = removed_when(ae->alarm_id, ae->unique_id, unique_id, uuid_str);
+
+        if (when && (when + (time_t)MAX_REMOVED_PERIOD) < ae->when) {
+            send = 1;
+            goto done;
+        } else {
+            send = 0;
+            update_filtered(ae, unique_id, uuid_str);
+            goto done;
+        }
+    }
+     
+done:
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize statement when trying to filter alert events, rc = %d", rc);
+
+    return send;
+}
+
+// will replace call to aclk_update_alarm in health/health_log.c
+// and handle both cases
+int sql_queue_alarm_to_aclk(RRDHOST *host, ALARM_ENTRY *ae, int skip_filter)
+{
+    if (!claimed())
+        return 0;
+
+    if (ae->flags & HEALTH_ENTRY_FLAG_ACLK_QUEUED) {
+        return 0;
+    }
+
+    CHECK_SQLITE_CONNECTION(db_meta);
+
+    if (!skip_filter) {
+        if (!should_send_to_cloud(host, ae)) {
+            return 0;
+        }
+    }
+
+    int rc = 0;
+    sqlite3_stmt *res_alert = NULL;
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    BUFFER *sql = buffer_create(1024);
+
+    buffer_sprintf(
+        sql,
+        "INSERT INTO aclk_alert_%s (alert_unique_id, date_created, filtered_alert_unique_id) "
+        "VALUES (@alert_unique_id, unixepoch(), @alert_unique_id) on conflict (alert_unique_id) do nothing; ",
+        uuid_str);
+
+    rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res_alert, 0);
+    if (unlikely(rc != SQLITE_OK)) {
+        error_report("Failed to prepare statement to store alert event");
+        buffer_free(sql);
+        return 1;
+    }
+
+    rc = sqlite3_bind_int(res_alert, 1, ae->unique_id);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    rc = execute_insert(res_alert);
+    if (unlikely(rc != SQLITE_DONE)) {
+        error_report("Failed to store alert event %u, rc = %d", ae->unique_id, rc);
+        goto bind_fail;
+    }
+
+    ae->flags |= HEALTH_ENTRY_FLAG_ACLK_QUEUED;
+    struct aclk_database_worker_config *wc  = (struct aclk_database_worker_config *)host->dbsync_worker;
+    if (wc) {
+        wc->pause_alert_updates = 0;
+    }
+
+bind_fail:
+    if (unlikely(sqlite3_finalize(res_alert) != SQLITE_OK))
+        error_report("Failed to reset statement in store alert event, rc = %d", rc);
+
+    buffer_free(sql);
+    return 0;
+}
+
+int rrdcalc_status_to_proto_enum(RRDCALC_STATUS status)
+{
+#ifdef ENABLE_ACLK
+    switch(status) {
+        case RRDCALC_STATUS_REMOVED:
+            return ALARM_STATUS_REMOVED;
+
+        case RRDCALC_STATUS_UNDEFINED:
+            return ALARM_STATUS_NOT_A_NUMBER;
+
+        case RRDCALC_STATUS_CLEAR:
+            return ALARM_STATUS_CLEAR;
+
+        case RRDCALC_STATUS_WARNING:
+            return ALARM_STATUS_WARNING;
+
+        case RRDCALC_STATUS_CRITICAL:
+            return ALARM_STATUS_CRITICAL;
+
+        default:
+            return ALARM_STATUS_UNKNOWN;
+    }
+#else
+    UNUSED(status);
+    return 1;
+#endif
+}
+
+void aclk_push_alert_event(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
+{
+#ifndef ENABLE_ACLK
+    UNUSED(wc);
+    UNUSED(cmd);
+#else
+    int rc;
+
+    if (unlikely(!wc->alert_updates)) {
+        log_access("ACLK STA [%s (%s)]: Ignoring alert push event, updates have been turned off for this node.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A");
+        return;
+    }
+
+    char *claim_id = get_agent_claimid();
+    if (unlikely(!claim_id))
+        return;
+
+    if (unlikely(!wc->host)) {
+        freez(claim_id);
+        return;
+    }
+
+    BUFFER *sql = buffer_create(1024);
+
+    if (wc->alerts_start_seq_id != 0) {
+        buffer_sprintf(
+            sql,
+            "UPDATE aclk_alert_%s SET date_submitted = NULL, date_cloud_ack = NULL WHERE sequence_id >= %"PRIu64
+            "; UPDATE aclk_alert_%s SET date_cloud_ack = unixepoch() WHERE sequence_id < %"PRIu64
+            " and date_cloud_ack is null "
+            "; UPDATE aclk_alert_%s SET date_submitted = unixepoch() WHERE sequence_id < %"PRIu64
+            " and date_submitted is null",
+            wc->uuid_str,
+            wc->alerts_start_seq_id,
+            wc->uuid_str,
+            wc->alerts_start_seq_id,
+            wc->uuid_str,
+            wc->alerts_start_seq_id);
+        db_execute(buffer_tostring(sql));
+        buffer_reset(sql);
+        wc->alerts_start_seq_id = 0;
+    }
+
+    int limit = cmd.count > 0 ? cmd.count : 1;
+
+    sqlite3_stmt *res = NULL;
+
+    buffer_sprintf(sql, "select aa.sequence_id, hl.unique_id, hl.alarm_id, hl.config_hash_id, hl.updated_by_id, hl.when_key, \
+                   hl.duration, hl.non_clear_duration, hl.flags, hl.exec_run_timestamp, hl.delay_up_to_timestamp, hl.name, \
+                   hl.chart, hl.family, hl.exec, hl.recipient, hl.source, hl.units, hl.info, hl.exec_code, hl.new_status, \
+                   hl.old_status, hl.delay, hl.new_value, hl.old_value, hl.last_repeat, hl.chart_context \
+                         from health_log_%s hl, aclk_alert_%s aa \
+                         where hl.unique_id = aa.alert_unique_id and aa.date_submitted is null \
+                         order by aa.sequence_id asc limit %d;", wc->uuid_str, wc->uuid_str, limit);
+
+    rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);
+    if (rc != SQLITE_OK) {
+        error_report("Failed to prepare statement when trying to send an alert update via ACLK");
+        buffer_free(sql);
+        freez(claim_id);
+        return;
+    }
+
+    char uuid_str[GUID_LEN + 1];
+    uint64_t  first_sequence_id = 0;
+    uint64_t  last_sequence_id = 0;
+    static __thread uint64_t log_first_sequence_id = 0;
+    static __thread uint64_t log_last_sequence_id = 0;
+
+    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
+        struct alarm_log_entry alarm_log;
+        char old_value_string[100 + 1];
+        char new_value_string[100 + 1];
+
+        alarm_log.node_id = wc->node_id;
+        alarm_log.claim_id = claim_id;
+
+        alarm_log.chart = strdupz((char *)sqlite3_column_text(res, 12));
+        alarm_log.name = strdupz((char *)sqlite3_column_text(res, 11));
+        alarm_log.family = sqlite3_column_bytes(res, 13) > 0 ? strdupz((char *)sqlite3_column_text(res, 13)) : NULL;
+
+        alarm_log.batch_id = wc->alerts_batch_id;
+        alarm_log.sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
+        alarm_log.when = (time_t) sqlite3_column_int64(res, 5);
+
+        uuid_unparse_lower(*((uuid_t *) sqlite3_column_blob(res, 3)), uuid_str);
+        alarm_log.config_hash = strdupz((char *)uuid_str);
+
+        alarm_log.utc_offset = wc->host->utc_offset;
+        alarm_log.timezone = strdupz(rrdhost_abbrev_timezone(wc->host));
+        alarm_log.exec_path = sqlite3_column_bytes(res, 14) > 0 ? strdupz((char *)sqlite3_column_text(res, 14)) :
+                                                                  strdupz((char *)string2str(wc->host->health_default_exec));
+        alarm_log.conf_source = strdupz((char *)sqlite3_column_text(res, 16));
+
+        char *edit_command = sqlite3_column_bytes(res, 16) > 0 ?
+                                 health_edit_command_from_source((char *)sqlite3_column_text(res, 16)) :
+                                 strdupz("UNKNOWN=0=UNKNOWN");
+        alarm_log.command = strdupz(edit_command);
+
+        alarm_log.duration = (time_t) sqlite3_column_int64(res, 6);
+        alarm_log.non_clear_duration = (time_t) sqlite3_column_int64(res, 7);
+        alarm_log.status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS) sqlite3_column_int(res, 20));
+        alarm_log.old_status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS) sqlite3_column_int(res, 21));
+        alarm_log.delay = (int) sqlite3_column_int(res, 22);
+        alarm_log.delay_up_to_timestamp = (time_t) sqlite3_column_int64(res, 10);
+        alarm_log.last_repeat = (time_t) sqlite3_column_int64(res, 25);
+
+        alarm_log.silenced = ((sqlite3_column_int64(res, 8) & HEALTH_ENTRY_FLAG_SILENCED) ||
+                              (sqlite3_column_type(res, 15) != SQLITE_NULL &&
+                               !strncmp((char *)sqlite3_column_text(res, 15), "silent", 6))) ?
+                                 1 :
+                                 0;
+
+        alarm_log.value_string =
+            sqlite3_column_type(res, 23) == SQLITE_NULL ?
+                strdupz((char *)"-") :
+                strdupz((char *)format_value_and_unit(
+                    new_value_string, 100, sqlite3_column_double(res, 23), (char *)sqlite3_column_text(res, 17), -1));
+
+        alarm_log.old_value_string =
+            sqlite3_column_type(res, 24) == SQLITE_NULL ?
+                strdupz((char *)"-") :
+                strdupz((char *)format_value_and_unit(
+                    old_value_string, 100, sqlite3_column_double(res, 24), (char *)sqlite3_column_text(res, 17), -1));
+
+        alarm_log.value = (NETDATA_DOUBLE) sqlite3_column_double(res, 23);
+        alarm_log.old_value = (NETDATA_DOUBLE) sqlite3_column_double(res, 24);
+
+        alarm_log.updated = (sqlite3_column_int64(res, 8) & HEALTH_ENTRY_FLAG_UPDATED) ? 1 : 0;
+        alarm_log.rendered_info = sqlite3_column_type(res, 18) == SQLITE_NULL ?
+                                      strdupz((char *)"") :
+                                      strdupz((char *)sqlite3_column_text(res, 18));
+
+        alarm_log.chart_context = sqlite3_column_type(res, 26) == SQLITE_NULL ?
+                                      strdupz((char *)"") :
+                                      strdupz((char *)sqlite3_column_text(res, 26));
+
+        aclk_send_alarm_log_entry(&alarm_log);
+
+        if (first_sequence_id == 0)
+            first_sequence_id  = (uint64_t) sqlite3_column_int64(res, 0);
+
+        if (log_first_sequence_id == 0)
+            log_first_sequence_id  = (uint64_t) sqlite3_column_int64(res, 0);
+
+        last_sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
+        log_last_sequence_id = (uint64_t) sqlite3_column_int64(res, 0);
+
+        destroy_alarm_log_entry(&alarm_log);
+        freez(edit_command);
+    }
+
+    if (first_sequence_id) {
+        buffer_flush(sql);
+        buffer_sprintf(sql, "UPDATE aclk_alert_%s SET date_submitted=unixepoch() "
+                            "WHERE date_submitted IS NULL AND sequence_id BETWEEN %" PRIu64 " AND %" PRIu64 ";",
+                       wc->uuid_str, first_sequence_id, last_sequence_id);
+        db_execute(buffer_tostring(sql));
+    } else {
+        if (log_first_sequence_id)
+            log_access(
+                "ACLK RES [%s (%s)]: ALERTS SENT from %" PRIu64 " to %" PRIu64 " batch=%" PRIu64,
+                wc->node_id,
+                wc->host ? rrdhost_hostname(wc->host) : "N/A",
+                log_first_sequence_id,
+                log_last_sequence_id,
+                wc->alerts_batch_id);
+        log_first_sequence_id = 0;
+        log_last_sequence_id = 0;
+        wc->pause_alert_updates = 1;
+    }
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize statement to send alert entries from the database, rc = %d", rc);
+
+    freez(claim_id);
+    buffer_free(sql);
+#endif
+
+    return;
+}
+
+void sql_queue_existing_alerts_to_aclk(RRDHOST *host)
+{
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+    BUFFER *sql = buffer_create(1024);
+
+    buffer_sprintf(sql,"delete from aclk_alert_%s; " \
+                       "insert into aclk_alert_%s (alert_unique_id, date_created, filtered_alert_unique_id) " \
+                       "select unique_id alert_unique_id, unixepoch(), unique_id alert_unique_id from health_log_%s " \
+                       "where new_status <> 0 and new_status <> -2 and config_hash_id is not null and updated_by_id = 0 " \
+                       "order by unique_id asc on conflict (alert_unique_id) do nothing;", uuid_str, uuid_str, uuid_str);
+
+    db_execute(buffer_tostring(sql));
+
+    buffer_free(sql);
+
+    struct aclk_database_worker_config *wc  = (struct aclk_database_worker_config *)host->dbsync_worker;
+    if (wc) {
+        wc->pause_alert_updates = 0;
+    }
+}
+
+void aclk_send_alarm_health_log(char *node_id)
+{
+    if (unlikely(!node_id))
+        return;
+
+    struct aclk_database_worker_config *wc = find_inactive_wc_by_node_id(node_id);
+
+    if (likely(!wc)) {
+        RRDHOST *host = find_host_by_node_id(node_id);
+        if (likely(host))
+            wc = (struct aclk_database_worker_config *)host->dbsync_worker;
+    }
+
+    if (!wc) {
+        log_access("ACLK REQ [%s (N/A)]: HEALTH LOG REQUEST RECEIVED FOR INVALID NODE", node_id);
+        return;
+    }
+
+    log_access("ACLK REQ [%s (%s)]: HEALTH LOG REQUEST RECEIVED", node_id, wc->hostname ? wc->hostname : "N/A");
+
+    struct aclk_database_cmd cmd;
+    memset(&cmd, 0, sizeof(cmd));
+    cmd.opcode = ACLK_DATABASE_ALARM_HEALTH_LOG;
+
+    aclk_database_enq_cmd(wc, &cmd);
+    return;
+}
+
+void aclk_push_alarm_health_log(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
+{
+    UNUSED(cmd);
+#ifndef ENABLE_ACLK
+    UNUSED(wc);
+#else
+    int rc;
+
+    char *claim_id = get_agent_claimid();
+    if (unlikely(!claim_id))
+        return;
+
+    RRDHOST *host = wc->host;
+    if (unlikely(!host)) {
+        host = find_host_by_node_id(wc->node_id);
+
+        if (unlikely(!host)) {
+            log_access(
+                "AC [%s (N/A)]: ACLK synchronization thread for %s is not yet linked to HOST.",
+                wc->node_id,
+                wc->host_guid);
+            freez(claim_id);
+            return;
+        }
+    }
+
+    uint64_t first_sequence = 0;
+    uint64_t last_sequence = 0;
+    struct timeval first_timestamp;
+    struct timeval last_timestamp;
+
+    BUFFER *sql = buffer_create(1024);
+
+    sqlite3_stmt *res = NULL;
+
+    //TODO: make this better: include info from health log too
+    buffer_sprintf(sql, "SELECT MIN(sequence_id), MIN(date_created), MAX(sequence_id), MAX(date_created) " \
+         "FROM aclk_alert_%s;", wc->uuid_str);
+
+    rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);
+    if (rc != SQLITE_OK) {
+        error_report("Failed to prepare statement to get health log statistics from the database");
+        buffer_free(sql);
+        freez(claim_id);
+        return;
+    }
+
+    first_timestamp.tv_sec = 0;
+    first_timestamp.tv_usec = 0;
+    last_timestamp.tv_sec = 0;
+    last_timestamp.tv_usec = 0;
+
+    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
+        first_sequence = sqlite3_column_bytes(res, 0) > 0 ? (uint64_t) sqlite3_column_int64(res, 0) : 0;
+        if (sqlite3_column_bytes(res, 1) > 0) {
+            first_timestamp.tv_sec = sqlite3_column_int64(res, 1);
+        }
+
+        last_sequence = sqlite3_column_bytes(res, 2) > 0 ? (uint64_t) sqlite3_column_int64(res, 2) : 0;
+        if (sqlite3_column_bytes(res, 3) > 0) {
+            last_timestamp.tv_sec = sqlite3_column_int64(res, 3);
+        }
+    }
+
+    struct alarm_log_entries log_entries;
+    log_entries.first_seq_id = first_sequence;
+    log_entries.first_when = first_timestamp;
+    log_entries.last_seq_id = last_sequence;
+    log_entries.last_when = last_timestamp;
+
+    struct alarm_log_health alarm_log;
+    alarm_log.claim_id = claim_id;
+    alarm_log.node_id =  wc->node_id;
+    alarm_log.log_entries = log_entries;
+    alarm_log.status = wc->alert_updates == 0 ? 2 : 1;
+    alarm_log.enabled = (int)host->health_enabled;
+
+    wc->alert_sequence_id = last_sequence;
+
+    aclk_send_alarm_log_health(&alarm_log);
+    log_access("ACLK RES [%s (%s)]: HEALTH LOG SENT from %"PRIu64" to %"PRIu64, wc->node_id, wc->hostname ? wc->hostname : "N/A", first_sequence, last_sequence);
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to reset statement to get health log statistics from the database, rc = %d", rc);
+
+    freez(claim_id);
+    buffer_free(sql);
+#endif
+
+    return;
+}
+
+void aclk_send_alarm_configuration(char *config_hash)
+{
+    if (unlikely(!config_hash))
+        return;
+
+    struct aclk_database_worker_config *wc = (struct aclk_database_worker_config *) localhost->dbsync_worker;
+
+    if (unlikely(!wc)) {
+        return;
+    }
+
+    log_access("ACLK REQ [%s (%s)]: Request to send alert config %s.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", config_hash);
+
+    struct aclk_database_cmd cmd;
+    memset(&cmd, 0, sizeof(cmd));
+    cmd.opcode = ACLK_DATABASE_PUSH_ALERT_CONFIG;
+    cmd.data_param = (void *) strdupz(config_hash);
+    cmd.completion = NULL;
+    aclk_database_enq_cmd(wc, &cmd);
+
+    return;
+}
+
+#define SQL_SELECT_ALERT_CONFIG "SELECT alarm, template, on_key, class, type, component, os, hosts, plugin," \
+    "module, charts, families, lookup, every, units, green, red, calc, warn, crit, to_key, exec, delay, repeat, info," \
+    "options, 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 FROM alert_hash WHERE hash_id = @hash_id;"
+
+int aclk_push_alert_config_event(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
+{
+    UNUSED(wc);
+#ifndef ENABLE_ACLK
+    UNUSED(cmd);
+#else
+    int rc = 0;
+
+    CHECK_SQLITE_CONNECTION(db_meta);
+
+    sqlite3_stmt *res = NULL;
+
+    char *config_hash = (char *) cmd.data_param;
+
+    rc = sqlite3_prepare_v2(db_meta, SQL_SELECT_ALERT_CONFIG, -1, &res, 0);
+    if (rc != SQLITE_OK) {
+        error_report("Failed to prepare statement when trying to fetch an alarm hash configuration");
+        return 1;
+    }
+
+    uuid_t hash_uuid;
+    if (uuid_parse(config_hash, hash_uuid))
+        return 1;
+
+    rc = sqlite3_bind_blob(res, 1, &hash_uuid , sizeof(hash_uuid), SQLITE_STATIC);
+    if (unlikely(rc != SQLITE_OK))
+        goto bind_fail;
+
+    struct aclk_alarm_configuration alarm_config;
+    struct provide_alarm_configuration p_alarm_config;
+    p_alarm_config.cfg_hash = NULL;
+
+    if (sqlite3_step_monitored(res) == SQLITE_ROW) {
+
+        alarm_config.alarm = sqlite3_column_bytes(res, 0) > 0 ? strdupz((char *)sqlite3_column_text(res, 0)) : NULL;
+        alarm_config.tmpl = sqlite3_column_bytes(res, 1) > 0 ? strdupz((char *)sqlite3_column_text(res, 1)) : NULL;
+        alarm_config.on_chart = sqlite3_column_bytes(res, 2) > 0 ? strdupz((char *)sqlite3_column_text(res, 2)) : NULL;
+        alarm_config.classification = sqlite3_column_bytes(res, 3) > 0 ? strdupz((char *)sqlite3_column_text(res, 3)) : NULL;
+        alarm_config.type = sqlite3_column_bytes(res, 4) > 0 ? strdupz((char *)sqlite3_column_text(res, 4)) : NULL;
+        alarm_config.component = sqlite3_column_bytes(res, 5) > 0 ? strdupz((char *)sqlite3_column_text(res, 5)) : NULL;
+
+        alarm_config.os = sqlite3_column_bytes(res, 6) > 0 ? strdupz((char *)sqlite3_column_text(res, 6)) : NULL;
+        alarm_config.hosts = sqlite3_column_bytes(res, 7) > 0 ? strdupz((char *)sqlite3_column_text(res, 7)) : NULL;
+        alarm_config.plugin = sqlite3_column_bytes(res, 8) > 0 ? strdupz((char *)sqlite3_column_text(res, 8)) : NULL;
+        alarm_config.module = sqlite3_column_bytes(res, 9) > 0 ? strdupz((char *)sqlite3_column_text(res, 9)) : NULL;
+        alarm_config.charts = sqlite3_column_bytes(res, 10) > 0 ? strdupz((char *)sqlite3_column_text(res, 10)) : NULL;
+        alarm_config.families = sqlite3_column_bytes(res, 11) > 0 ? strdupz((char *)sqlite3_column_text(res, 11)) : NULL;
+        alarm_config.lookup = sqlite3_column_bytes(res, 12) > 0 ? strdupz((char *)sqlite3_column_text(res, 12)) : NULL;
+        alarm_config.every = sqlite3_column_bytes(res, 13) > 0 ? strdupz((char *)sqlite3_column_text(res, 13)) : NULL;
+        alarm_config.units = sqlite3_column_bytes(res, 14) > 0 ? strdupz((char *)sqlite3_column_text(res, 14)) : NULL;
+
+        alarm_config.green = sqlite3_column_bytes(res, 15) > 0 ? strdupz((char *)sqlite3_column_text(res, 15)) : NULL;
+        alarm_config.red = sqlite3_column_bytes(res, 16) > 0 ? strdupz((char *)sqlite3_column_text(res, 16)) : NULL;
+
+        alarm_config.calculation_expr = sqlite3_column_bytes(res, 17) > 0 ? strdupz((char *)sqlite3_column_text(res, 17)) : NULL;
+        alarm_config.warning_expr = sqlite3_column_bytes(res, 18) > 0 ? strdupz((char *)sqlite3_column_text(res, 18)) : NULL;
+        alarm_config.critical_expr = sqlite3_column_bytes(res, 19) > 0 ? strdupz((char *)sqlite3_column_text(res, 19)) : NULL;
+
+        alarm_config.recipient = sqlite3_column_bytes(res, 20) > 0 ? strdupz((char *)sqlite3_column_text(res, 20)) : NULL;
+        alarm_config.exec = sqlite3_column_bytes(res, 21) > 0 ? strdupz((char *)sqlite3_column_text(res, 21)) : NULL;
+        alarm_config.delay = sqlite3_column_bytes(res, 22) > 0 ? strdupz((char *)sqlite3_column_text(res, 22)) : NULL;
+        alarm_config.repeat = sqlite3_column_bytes(res, 23) > 0 ? strdupz((char *)sqlite3_column_text(res, 23)) : NULL;
+        alarm_config.info = sqlite3_column_bytes(res, 24) > 0 ? strdupz((char *)sqlite3_column_text(res, 24)) : NULL;
+        alarm_config.options = sqlite3_column_bytes(res, 25) > 0 ? strdupz((char *)sqlite3_column_text(res, 25)) : NULL;
+        alarm_config.host_labels = sqlite3_column_bytes(res, 26) > 0 ? strdupz((char *)sqlite3_column_text(res, 26)) : NULL;
+
+        alarm_config.p_db_lookup_dimensions = NULL;
+        alarm_config.p_db_lookup_method = NULL;
+        alarm_config.p_db_lookup_options = NULL;
+        alarm_config.p_db_lookup_after = 0;
+        alarm_config.p_db_lookup_before = 0;
+
+        if (sqlite3_column_bytes(res, 30) > 0) {
+
+            alarm_config.p_db_lookup_dimensions = sqlite3_column_bytes(res, 27) > 0 ? strdupz((char *)sqlite3_column_text(res, 27)) : NULL;
+            alarm_config.p_db_lookup_method = sqlite3_column_bytes(res, 28) > 0 ? strdupz((char *)sqlite3_column_text(res, 28)) : NULL;
+
+            BUFFER *tmp_buf = buffer_create(1024);
+            buffer_data_options2string(tmp_buf, sqlite3_column_int(res, 29));
+            alarm_config.p_db_lookup_options = strdupz((char *)buffer_tostring(tmp_buf));
+            buffer_free(tmp_buf);
+
+            alarm_config.p_db_lookup_after = sqlite3_column_int(res, 30);
+            alarm_config.p_db_lookup_before = sqlite3_column_int(res, 31);
+        }
+
+        alarm_config.p_update_every = sqlite3_column_int(res, 32);
+
+        p_alarm_config.cfg_hash = strdupz((char *) config_hash);
+        p_alarm_config.cfg = alarm_config;
+    }
+
+    if (likely(p_alarm_config.cfg_hash)) {
+        log_access("ACLK RES [%s (%s)]: Sent alert config %s.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", config_hash);
+        aclk_send_provide_alarm_cfg(&p_alarm_config);
+        freez((char *) cmd.data_param);
+        freez(p_alarm_config.cfg_hash);
+        destroy_aclk_alarm_configuration(&alarm_config);
+    }
+    else
+        log_access("ACLK STA [%s (%s)]: Alert config for %s not found.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", config_hash);
+
+bind_fail:
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to reset statement when pushing alarm config hash, rc = %d", rc);
+
+    return rc;
+#endif
+    return 0;
+}
+
+
+// Start streaming alerts
+void aclk_start_alert_streaming(char *node_id, uint64_t batch_id, uint64_t start_seq_id)
+{
+    if (unlikely(!node_id))
+        return;
+
+    //log_access("ACLK REQ [%s (N/A)]: ALERTS STREAM from %"PRIu64" batch=%"PRIu64".", node_id, start_seq_id, batch_id);
+
+    uuid_t node_uuid;
+    if (uuid_parse(node_id, node_uuid))
+        return;
+
+    struct aclk_database_worker_config *wc  = NULL;
+    RRDHOST *host = find_host_by_node_id(node_id);
+    if (likely(host)) {
+        wc = (struct aclk_database_worker_config *)host->dbsync_worker ?
+                 (struct aclk_database_worker_config *)host->dbsync_worker :
+                 (struct aclk_database_worker_config *)find_inactive_wc_by_node_id(node_id);
+
+        if (unlikely(!host->health_enabled)) {
+            log_access("ACLK STA [%s (N/A)]: Ignoring request to stream alert state changes, health is disabled.", node_id);
+            return;
+        }
+
+        if (unlikely(batch_id == 1) && unlikely(start_seq_id == 1))
+            sql_queue_existing_alerts_to_aclk(host);
+    } else
+        wc = (struct aclk_database_worker_config *)find_inactive_wc_by_node_id(node_id);
+
+    if (likely(wc)) {
+        log_access("ACLK REQ [%s (%s)]: ALERTS STREAM from %"PRIu64" batch=%"PRIu64, node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", start_seq_id, batch_id);
+        __sync_synchronize();
+        wc->alerts_batch_id = batch_id;
+        wc->alerts_start_seq_id = start_seq_id;
+        wc->alert_updates = 1;
+        wc->pause_alert_updates = 0;
+        __sync_synchronize();
+    }
+    else
+        log_access("ACLK STA [%s (N/A)]: ACLK synchronization thread is not active.", node_id);
+
+    return;
+}
+
+void sql_process_queue_removed_alerts_to_aclk(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
+{
+    UNUSED(cmd);
+
+    BUFFER *sql = buffer_create(1024);
+
+    buffer_sprintf(sql,"insert into aclk_alert_%s (alert_unique_id, date_created, filtered_alert_unique_id) " \
+        "select unique_id alert_unique_id, unixepoch(), unique_id alert_unique_id from health_log_%s " \
+        "where new_status = -2 and updated_by_id = 0 and unique_id not in " \
+        "(select alert_unique_id from aclk_alert_%s) order by unique_id asc " \
+        "on conflict (alert_unique_id) do nothing;", wc->uuid_str, wc->uuid_str, wc->uuid_str);
+
+    db_execute(buffer_tostring(sql));
+
+    log_access("ACLK STA [%s (%s)]: QUEUED REMOVED ALERTS", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A");
+
+    buffer_free(sql);
+
+    wc->pause_alert_updates = 0;
+    return;
+}
+
+void sql_queue_removed_alerts_to_aclk(RRDHOST *host)
+{
+    if (unlikely(!host->dbsync_worker))
+        return;
+
+    if (!claimed())
+        return;
+
+    struct aclk_database_cmd cmd;
+    memset(&cmd, 0, sizeof(cmd));
+    cmd.opcode = ACLK_DATABASE_QUEUE_REMOVED_ALERTS;
+    cmd.data = NULL;
+    cmd.data_param = NULL;
+    cmd.completion = NULL;
+    aclk_database_enq_cmd((struct aclk_database_worker_config *) host->dbsync_worker, &cmd);
+}
+
+void aclk_process_send_alarm_snapshot(char *node_id, char *claim_id, uint64_t snapshot_id, uint64_t sequence_id)
+{
+    UNUSED(claim_id);
+    if (unlikely(!node_id))
+        return;
+
+    uuid_t node_uuid;
+    if (uuid_parse(node_id, node_uuid))
+        return;
+
+    struct aclk_database_worker_config *wc = NULL;
+    RRDHOST *host = find_host_by_node_id(node_id);
+    if (likely(host))
+        wc = (struct aclk_database_worker_config *)host->dbsync_worker;
+
+    if (likely(wc)) {
+        log_access(
+            "IN [%s (%s)]: Request to send alerts snapshot, snapshot_id %" PRIu64 " and ack_sequence_id %" PRIu64,
+            wc->node_id,
+            wc->host ? rrdhost_hostname(wc->host) : "N/A",
+            snapshot_id,
+            sequence_id);
+        if (wc->alerts_snapshot_id == snapshot_id)
+            return;
+        __sync_synchronize();
+        wc->alerts_snapshot_id = snapshot_id;
+        wc->alerts_ack_sequence_id = sequence_id;
+        __sync_synchronize();
+
+        struct aclk_database_cmd cmd;
+        memset(&cmd, 0, sizeof(cmd));
+        cmd.opcode = ACLK_DATABASE_PUSH_ALERT_SNAPSHOT;
+        cmd.data_param = NULL;
+        cmd.completion = NULL;
+        aclk_database_enq_cmd(wc, &cmd);
+    } else
+        log_access("ACLK STA [%s (N/A)]: ACLK synchronization thread is not active.", node_id);
+
+    return;
+}
+
+void aclk_mark_alert_cloud_ack(char *uuid_str, uint64_t alerts_ack_sequence_id)
+{
+    BUFFER *sql = buffer_create(1024);
+
+    if (alerts_ack_sequence_id != 0) {
+        buffer_sprintf(
+            sql,
+            "UPDATE aclk_alert_%s SET date_cloud_ack = unixepoch() WHERE sequence_id <= %" PRIu64 "",
+            uuid_str,
+            alerts_ack_sequence_id);
+        db_execute(buffer_tostring(sql));
+    }
+
+    buffer_free(sql);
+}
+
+#ifdef ENABLE_ACLK
+void health_alarm_entry2proto_nolock(struct alarm_log_entry *alarm_log, ALARM_ENTRY *ae, RRDHOST *host)
+{
+    char *edit_command = ae->source ? health_edit_command_from_source(ae_source(ae)) : strdupz("UNKNOWN=0=UNKNOWN");
+    char config_hash_id[GUID_LEN + 1];
+    uuid_unparse_lower(ae->config_hash_id, config_hash_id);
+
+    alarm_log->chart = strdupz(ae_chart_name(ae));
+    alarm_log->name = strdupz(ae_name(ae));
+    alarm_log->family = strdupz(ae_family(ae));
+
+    alarm_log->batch_id = 0;
+    alarm_log->sequence_id = 0;
+    alarm_log->when = (time_t)ae->when;
+
+    alarm_log->config_hash = strdupz((char *)config_hash_id);
+
+    alarm_log->utc_offset = host->utc_offset;
+    alarm_log->timezone = strdupz(rrdhost_abbrev_timezone(host));
+    alarm_log->exec_path = ae->exec ? strdupz(ae_exec(ae)) : strdupz((char *)string2str(host->health_default_exec));
+    alarm_log->conf_source = ae->source ? strdupz(ae_source(ae)) : strdupz((char *)"");
+
+    alarm_log->command = strdupz((char *)edit_command);
+
+    alarm_log->duration = (time_t)ae->duration;
+    alarm_log->non_clear_duration = (time_t)ae->non_clear_duration;
+    alarm_log->status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS)ae->new_status);
+    alarm_log->old_status = rrdcalc_status_to_proto_enum((RRDCALC_STATUS)ae->old_status);
+    alarm_log->delay = (int)ae->delay;
+    alarm_log->delay_up_to_timestamp = (time_t)ae->delay_up_to_timestamp;
+    alarm_log->last_repeat = (time_t)ae->last_repeat;
+
+    alarm_log->silenced =
+        ((ae->flags & HEALTH_ENTRY_FLAG_SILENCED) || (ae->recipient && !strncmp(ae_recipient(ae), "silent", 6))) ?
+            1 :
+            0;
+
+    alarm_log->value_string = strdupz(ae_new_value_string(ae));
+    alarm_log->old_value_string = strdupz(ae_old_value_string(ae));
+
+    alarm_log->value = (!isnan(ae->new_value)) ? (NETDATA_DOUBLE)ae->new_value : 0;
+    alarm_log->old_value = (!isnan(ae->old_value)) ? (NETDATA_DOUBLE)ae->old_value : 0;
+
+    alarm_log->updated = (ae->flags & HEALTH_ENTRY_FLAG_UPDATED) ? 1 : 0;
+    alarm_log->rendered_info = strdupz(ae_info(ae));
+    alarm_log->chart_context = strdupz(ae_chart_context(ae));
+
+    freez(edit_command);
+}
+#endif
+
+#ifdef ENABLE_ACLK
+static int have_recent_alarm(RRDHOST *host, uint32_t alarm_id, uint32_t mark)
+{
+    ALARM_ENTRY *ae = host->health_log.alarms;
+
+    while (ae) {
+        if (ae->alarm_id == alarm_id && ae->unique_id >mark &&
+            (ae->new_status != RRDCALC_STATUS_WARNING && ae->new_status != RRDCALC_STATUS_CRITICAL))
+            return 1;
+        ae = ae->next;
+    }
+
+    return 0;
+}
+#endif
+
+#define ALARM_EVENTS_PER_CHUNK 10
+void aclk_push_alert_snapshot_event(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)
+{
+#ifndef ENABLE_ACLK
+    UNUSED(wc);
+    UNUSED(cmd);
+#else
+    UNUSED(cmd);
+    // we perhaps we don't need this for snapshots
+    if (unlikely(!wc->alert_updates)) {
+        log_access("ACLK STA [%s (%s)]: Ignoring alert snapshot event, updates have been turned off for this node.", wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A");
+        return;
+    }
+
+    if (unlikely(!wc->host)) {
+        error_report("ACLK synchronization thread for %s is not linked to HOST", wc->host_guid);
+        return;
+    }
+
+    if (unlikely(!wc->alerts_snapshot_id))
+        return;
+
+    char *claim_id = get_agent_claimid();
+    if (unlikely(!claim_id))
+        return;
+
+    log_access("ACLK REQ [%s (%s)]: Sending alerts snapshot, snapshot_id %" PRIu64, wc->node_id, wc->host ? rrdhost_hostname(wc->host) : "N/A", wc->alerts_snapshot_id);
+
+    aclk_mark_alert_cloud_ack(wc->uuid_str, wc->alerts_ack_sequence_id);
+
+    RRDHOST *host = wc->host;
+    uint32_t cnt = 0;
+
+    netdata_rwlock_rdlock(&host->health_log.alarm_log_rwlock);
+
+    ALARM_ENTRY *ae = host->health_log.alarms;
+
+    for (; ae; ae = ae->next) {
+        if (likely(ae->updated_by_id))
+            continue;
+
+        if (unlikely(ae->new_status == RRDCALC_STATUS_UNINITIALIZED))
+            continue;
+
+        if (have_recent_alarm(host, ae->alarm_id, ae->unique_id))
+            continue;
+
+        cnt++;
+    }
+
+    if (cnt) {
+        uint32_t chunk = 1, chunks = 0;
+
+        chunks = (cnt / ALARM_EVENTS_PER_CHUNK) + (cnt % ALARM_EVENTS_PER_CHUNK != 0);
+        ae = host->health_log.alarms;
+
+        cnt = 0;
+        struct alarm_snapshot alarm_snap;
+        alarm_snap.node_id = wc->node_id;
+        alarm_snap.claim_id = claim_id;
+        alarm_snap.snapshot_id = wc->alerts_snapshot_id;
+        alarm_snap.chunks = chunks;
+        alarm_snap.chunk = chunk;
+
+        alarm_snapshot_proto_ptr_t snapshot_proto = NULL;
+
+        for (; ae; ae = ae->next) {
+            if (likely(ae->updated_by_id))
+                continue;
+
+            if (unlikely(ae->new_status == RRDCALC_STATUS_UNINITIALIZED))
+                continue;
+
+            if (have_recent_alarm(host, ae->alarm_id, ae->unique_id))
+                continue;
+
+            cnt++;
+
+            struct alarm_log_entry alarm_log;
+            alarm_log.node_id = wc->node_id;
+            alarm_log.claim_id = claim_id;
+
+            if (!snapshot_proto)
+                snapshot_proto = generate_alarm_snapshot_proto(&alarm_snap);
+
+            health_alarm_entry2proto_nolock(&alarm_log, ae, host);
+            add_alarm_log_entry2snapshot(snapshot_proto, &alarm_log);
+
+            if (cnt == ALARM_EVENTS_PER_CHUNK) {
+                aclk_send_alarm_snapshot(snapshot_proto);
+
+                cnt = 0;
+
+                if (chunk < chunks) {
+                    chunk++;
+
+                    struct alarm_snapshot alarm_snap;
+                    alarm_snap.node_id = wc->node_id;
+                    alarm_snap.claim_id = claim_id;
+                    alarm_snap.snapshot_id = wc->alerts_snapshot_id;
+                    alarm_snap.chunks = chunks;
+                    alarm_snap.chunk = chunk;
+
+                    snapshot_proto = generate_alarm_snapshot_proto(&alarm_snap);
+                }
+            }
+            destroy_alarm_log_entry(&alarm_log);
+        }
+        if (cnt)
+            aclk_send_alarm_snapshot(snapshot_proto);
+    }
+
+    netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock);
+    wc->alerts_snapshot_id = 0;
+
+    freez(claim_id);
+#endif
+    return;
+}
+
+void sql_aclk_alert_clean_dead_entries(RRDHOST *host)
+{
+    if (!claimed())
+        return;
+
+    char uuid_str[GUID_LEN + 1];
+    uuid_unparse_lower_fix(&host->host_uuid, uuid_str);
+
+    BUFFER *sql = buffer_create(1024);
+
+    buffer_sprintf(sql,"delete from aclk_alert_%s where filtered_alert_unique_id not in "
+                   " (select unique_id from health_log_%s); ", uuid_str, uuid_str);
+    
+    char *err_msg = NULL;
+    int rc = sqlite3_exec_monitored(db_meta, buffer_tostring(sql), NULL, NULL, &err_msg);
+    if (rc != SQLITE_OK) {
+        error_report("Failed when trying to clean stale ACLK alert entries from aclk_alert_%s, error message \"%s""",
+                     uuid_str, err_msg);
+        sqlite3_free(err_msg);
+    }
+    buffer_free(sql);
+}
+
+int get_proto_alert_status(RRDHOST *host, struct proto_alert_status *proto_alert_status)
+{
+    int rc;
+    struct aclk_database_worker_config *wc  = NULL;
+    wc = (struct aclk_database_worker_config *)host->dbsync_worker;
+    if (!wc)
+        return 1;
+
+    proto_alert_status->alert_updates = wc->alert_updates;
+    proto_alert_status->alerts_batch_id = wc->alerts_batch_id;
+
+    BUFFER *sql = buffer_create(1024);
+    sqlite3_stmt *res = NULL;
+
+    buffer_sprintf(sql, "SELECT MIN(sequence_id), MAX(sequence_id), " \
+                   "(select MAX(sequence_id) from aclk_alert_%s where date_cloud_ack is not NULL), " \
+                   "(select MAX(sequence_id) from aclk_alert_%s where date_submitted is not NULL) " \
+                   "FROM aclk_alert_%s where date_submitted is null;", wc->uuid_str, wc->uuid_str, wc->uuid_str);
+
+    rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);
+    if (rc != SQLITE_OK) {
+        error_report("Failed to prepare statement to get alert log status from the database.");
+        buffer_free(sql);
+        return 1;
+    }
+
+    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
+        proto_alert_status->pending_min_sequence_id = sqlite3_column_bytes(res, 0) > 0 ? (uint64_t) sqlite3_column_int64(res, 0) : 0;
+        proto_alert_status->pending_max_sequence_id = sqlite3_column_bytes(res, 1) > 0 ? (uint64_t) sqlite3_column_int64(res, 1) : 0;
+        proto_alert_status->last_acked_sequence_id = sqlite3_column_bytes(res, 2) > 0 ? (uint64_t) sqlite3_column_int64(res, 2) : 0;
+        proto_alert_status->last_submitted_sequence_id = sqlite3_column_bytes(res, 3) > 0 ? (uint64_t) sqlite3_column_int64(res, 3) : 0;
+    }
+
+    rc = sqlite3_finalize(res);
+    if (unlikely(rc != SQLITE_OK))
+        error_report("Failed to finalize statement to get alert log status from the database, rc = %d", rc);
+
+    buffer_free(sql);
+    return 0;
+}