poller_commands.php

<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2016 The Cacti Group                                 |
 |                                                                         |
 | 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.                            |
 +-------------------------------------------------------------------------+
 | Cacti: The Complete RRDTool-based Graphing Solution                     |
 +-------------------------------------------------------------------------+
 | This code is designed, written, and maintained by the Cacti Group. See  |
 | about.php and/or the AUTHORS file for specific developer information.   |
 +-------------------------------------------------------------------------+
 | http://www.cacti.net/                                                   |
 +-------------------------------------------------------------------------+
*/

/* we are not talking to the browser */
$no_http_headers = true;

define('MAX_RECACHE_RUNTIME', 296);

/* do NOT run this script through a web browser */
if (!isset($_SERVER['argv'][0]) || isset($_SERVER['REQUEST_METHOD'])  || isset($_SERVER['REMOTE_ADDR'])) {
	die('<br><strong>This script is only meant to run at the command line.</strong>');
}

/* Start Initialization Section */
include(dirname(__FILE__) . '/include/global.php');
include_once($config['base_path'] . '/lib/poller.php');
include_once($config['base_path'] . '/lib/data_query.php');
include_once($config['base_path'] . '/lib/rrd.php');

/* Record Start Time */
$start = microtime(true);

$poller_commands = db_fetch_assoc('SELECT poller_command.action, poller_command.command FROM poller_command WHERE poller_command.poller_id = 0');

$last_host_id = 0;
$first_host = true;
$recached_hosts = 0;

if (sizeof($poller_commands) > 0) {
	foreach ($poller_commands as $command) {
		switch ($command['action']) {
		case POLLER_COMMAND_REINDEX:
			list($host_id, $data_query_id) = explode(':', $command['command']);
				if ($last_host_id != $host_id) {
				$last_host_id = $host_id;
				$first_host = true;
				$recached_hosts++;
			} else {
				$first_host = false;
			}

			if ($first_host) {
				cacti_log("Device[$host_id] WARNING: Recache Event Detected for Device", true, 'PCOMMAND');
			}

			if (read_config_option('log_verbosity') >= POLLER_VERBOSITY_DEBUG) {
				cacti_log("Device[$host_id] RECACHE: Recache for Device, data query #$data_query_id", true, 'PCOMMAND');
			}

			run_data_query($host_id, $data_query_id);

			if (read_config_option('log_verbosity') >= POLLER_VERBOSITY_DEBUG) {
				cacti_log("Device[$host_id] RECACHE: Recache successful.", true, 'PCOMMAND');
			}
			break;
		default:
			cacti_log('ERROR: Unknown poller command issued', true, 'PCOMMAND');
		}

		/* record current_time */
		$current = microtime(true);

		/* end if runtime has been exceeded */
		if (($current-$start) > MAX_RECACHE_RUNTIME) {
			cacti_log("ERROR: Poller Command processing timed out after processing '" . $command . "'",true,'PCOMMAND');
			break;
		}
	}

	db_execute('DELETE FROM poller_command WHERE poller_id = 0');
}

/* take time to log performance data */
$recache = microtime(true);

$recache_stats = sprintf('RecacheTime:%01.4f DevicesRecached:%s',	round($recache - $start, 4), $recached_hosts);

if ($recached_hosts > 0) {
	cacti_log('STATS: ' . $recache_stats, true, 'RECACHE');
}

/* insert poller stats into the settings table */
db_execute("REPLACE INTO settings (name, value) VALUES ('stats_recache', '$recache_stats')");