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/*
** Zabbix
** Copyright (C) 2001-2022 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "dbconfig.h"
#include "zbxnix.h"
#include "zbxself.h"
#include "log.h"
#include "dbcache.h"
#include "zbxrtc.h"
#include "zbxtime.h"
#include "zbx_rtc_constants.h"
#include "valuecache.h"
extern int CONFIG_CONFSYNCER_FREQUENCY;
extern unsigned char program_type;
/******************************************************************************
* *
* Purpose: periodically synchronises database data with memory cache *
* *
* Comments: never returns *
* *
******************************************************************************/
ZBX_THREAD_ENTRY(dbconfig_thread, args)
{
double sec = 0.0;
int nextcheck = 0, sleeptime, secrets_reload = 0, cache_reload = 0;
zbx_ipc_async_socket_t rtc;
const zbx_thread_info_t *info = &((zbx_thread_args_t *)args)->info;
int server_num = ((zbx_thread_args_t *)args)->info.server_num;
int process_num = ((zbx_thread_args_t *)args)->info.process_num;
unsigned char process_type = ((zbx_thread_args_t *)args)->info.process_type;
zabbix_log(LOG_LEVEL_INFORMATION, "%s #%d started [%s #%d]", get_program_type_string(program_type),
server_num, get_process_type_string(process_type), process_num);
zbx_update_selfmon_counter(info, ZBX_PROCESS_STATE_BUSY);
zbx_rtc_subscribe(&rtc, process_type, process_num);
zbx_setproctitle("%s [connecting to the database]", get_process_type_string(process_type));
DBconnect(ZBX_DB_CONNECT_NORMAL);
sec = zbx_time();
zbx_setproctitle("%s [syncing configuration]", get_process_type_string(process_type));
DCsync_configuration(ZBX_DBSYNC_INIT, ZBX_SYNCED_NEW_CONFIG_NO, NULL);
DCsync_kvs_paths(NULL);
zbx_setproctitle("%s [synced configuration in " ZBX_FS_DBL " sec, idle %d sec]",
get_process_type_string(process_type), (sec = zbx_time() - sec), CONFIG_CONFSYNCER_FREQUENCY);
zbx_rtc_notify_config_sync(&rtc);
nextcheck = (int)time(NULL) + CONFIG_CONFSYNCER_FREQUENCY;
while (ZBX_IS_RUNNING())
{
zbx_uint32_t rtc_cmd;
unsigned char *rtc_data;
sleeptime = nextcheck - (int)time(NULL);
while (SUCCEED == zbx_rtc_wait(&rtc, info, &rtc_cmd, &rtc_data, sleeptime) && 0 != rtc_cmd)
{
if (ZBX_RTC_CONFIG_CACHE_RELOAD == rtc_cmd)
{
if (0 == cache_reload)
{
zabbix_log(LOG_LEVEL_WARNING, "forced reloading of the configuration cache");
cache_reload = 1;
}
else
zabbix_log(LOG_LEVEL_WARNING, "configuration cache reloading is already in progress");
}
else if (ZBX_RTC_SECRETS_RELOAD == rtc_cmd)
{
if (0 == secrets_reload)
{
zabbix_log(LOG_LEVEL_WARNING, "forced reloading of the secrets");
secrets_reload = 1;
}
else
zabbix_log(LOG_LEVEL_WARNING, "configuration cache reloading is already in progress");
}
else if (ZBX_RTC_SHUTDOWN == rtc_cmd)
goto stop;
sleeptime = 0;
}
zbx_setproctitle("%s [synced configuration in " ZBX_FS_DBL " sec, syncing configuration]",
get_process_type_string(process_type), sec);
sec = zbx_time();
zbx_update_env(sec);
if (0 == secrets_reload)
{
zbx_vector_uint64_t deleted_itemids;
zbx_vector_uint64_create(&deleted_itemids);
DCsync_configuration(ZBX_DBSYNC_UPDATE, ZBX_SYNCED_NEW_CONFIG_YES, &deleted_itemids);
DCsync_kvs_paths(NULL);
DCupdate_interfaces_availability();
nextcheck = (int)time(NULL) + CONFIG_CONFSYNCER_FREQUENCY;
zbx_vc_remove_items_by_ids(&deleted_itemids);
zbx_vector_uint64_destroy(&deleted_itemids);
if (0 != cache_reload)
{
cache_reload = 0;
zabbix_log(LOG_LEVEL_WARNING, "finished forced reloading of the configuration cache");
}
}
else
{
DCsync_kvs_paths(NULL);
secrets_reload = 0;
zabbix_log(LOG_LEVEL_WARNING, "finished forced reloading of the secrets");
}
sec = zbx_time() - sec;
zbx_setproctitle("%s [synced configuration in " ZBX_FS_DBL " sec, idle %d sec]",
get_process_type_string(process_type), sec, CONFIG_CONFSYNCER_FREQUENCY);
}
stop:
zbx_setproctitle("%s #%d [terminated]", get_process_type_string(process_type), process_num);
while (1)
zbx_sleep(SEC_PER_MIN);
}
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