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poller_recovery.php
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#!/usr/bin/env php
<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2024 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/ |
+-------------------------------------------------------------------------+
*/
if (function_exists('pcntl_async_signals')) {
pcntl_async_signals(true);
} else {
declare(ticks = 100);
}
ini_set('output_buffering', 'Off');
require(__DIR__ . '/include/cli_check.php');
require_once(CACTI_PATH_LIBRARY . '/poller.php');
require_once(CACTI_PATH_LIBRARY . '/boost.php');
require_once(CACTI_PATH_LIBRARY . '/dsstats.php');
/* display_version - displays version information */
function display_version() {
$version = get_cacti_cli_version();
print "Cacti Boost RRD Update Poller, Version $version " . COPYRIGHT_YEARS . "\n";
}
/* display_help - displays the usage of the function */
function display_help() {
display_version();
print "\nusage: poller_recovery.php [--verbose] [--force] [--debug]\n\n";
print "Cacti's Remote Poller Recovery Script. This poller will transfer all offline boost records\n";
print "to the Main Cacti Pollers boost table\n";
print "Optional:\n";
print " --verbose - Show details logs at the command line\n";
print " --force - Force the execution of a update process\n";
print " --debug - Display verbose output during execution\n\n";
}
function sig_handler($si
8000
gno) {
switch ($signo) {
case SIGTERM:
case SIGINT:
cacti_log('RECOVERY WARNING: Recovery Poller terminated by user', false, 'POLLER');
/* tell the main poller that we are done */
db_execute("REPLACE INTO settings (name, value) VALUES ('boost_poller_status', 'terminated - end time:" . date('Y-m-d G:i:s') ."')");
exit;
break;
default:
/* ignore all other signals */
}
}
function debug($string) {
global $debug;
if ($debug) {
print trim($string) . "\n";
}
}
global $local_db_cnn_id, $remote_db_cnn_id;
$recovery_pid = db_fetch_cell("SELECT value FROM settings WHERE name='recovery_pid'", '', true, $local_db_cnn_id);
$packet_data = db_fetch_row("SHOW GLOBAL VARIABLES LIKE 'max_allowed_packet'", true, $remote_db_cnn_id);
if (isset($packet_data['Value'])) {
$max_allowed_packet = $packet_data['Value'];
} else {
$max_allowed_packet = 1E6;
}
/* process calling arguments */
$parms = $_SERVER['argv'];
array_shift($parms);
$debug = false;
$forcerun = false;
$verbose = false;
$poller_id = $config['poller_id'];
if (cacti_sizeof($parms)) {
foreach ($parms as $parameter) {
if (strpos($parameter, '=')) {
list($arg, $value) = explode('=', $parameter);
} else {
$arg = $parameter;
$value = '';
}
switch ($arg) {
case '-d':
case '--debug':
$debug = true;
break;
case '-f':
case '--force':
$forcerun = true;
break;
case '--verbose':
$verbose = true;
break;
case '--version':
case '-V':
case '-v':
display_version();
exit;
case '--help':
case '-H':
case '-h':
display_help();
exit;
default:
print 'ERROR: Invalid Parameter ' . $parameter . "\n\n";
display_help();
exit;
}
}
}
/* check for an invalid run location */
if ($poller_id == 1) {
print "ERROR: This command is only to be run on remote Cacti Data Collectors\n";
exit(1);
}
/* install signal handlers for UNIX only */
if (function_exists('pcntl_signal')) {
pcntl_signal(SIGTERM, 'sig_handler');
pcntl_signal(SIGINT, 'sig_handler');
}
/* take time and log performance data */
$start = microtime(true);
/* configuration variables */
$record_limit = 150000;
$sleep_time = 1;
/* global counter variables */
$records_inserted = 0;
debug('About to start recovery processing');
if (!empty($recovery_pid)) {
$pid = posix_kill($recovery_pid, 0);
if ($pid === false) {
/* we found a stale PID, so we delete it from the table */
db_execute("DELETE FROM settings WHERE name='recovery_pid'", true, $local_db_cnn_id);
$run = true;
} else {
$run = false;
}
} else {
$run = true;
}
if ($run) {
$my_pid = getmypid();
cacti_log('RECOVERY: No pid exists, starting recovery process (PID=' . $my_pid . ')!', false, 'POLLER');
db_execute_prepared('REPLACE INTO settings
(name, value)
VALUES ("recovery_pid", ?)',
array($my_pid), true, $local_db_cnn_id);
/* let the console know you are in recovery mode */
db_execute_prepared('UPDATE poller
SET status = "5"
WHERE id = ?',
array($poller_id), true, $remote_db_cnn_id);
poller_push_reindex_data_to_poller(0, 0, true);
while (true) {
cacti_log('RECOVERY: Getting max_time for '. $record_limit . ' records.', false, 'POLLER');
$max_time = db_fetch_cell("SELECT MAX(time)
FROM (
SELECT time
FROM poller_output_boost
ORDER BY time ASC
LIMIT $record_limit
) AS rs", '', true, $local_db_cnn_id);
if (empty($max_time)) {
db_execute("DELETE FROM settings WHERE name='recovery_pid'", true, $local_db_cnn_id);
break;
} else {
cacti_log('RECOVERY: Fetching records till time: ' . $max_time . ' from poller DB', false, 'POLLER');
$rows = db_fetch_assoc_prepared('SELECT *
FROM poller_output_boost
WHERE time <= ?
ORDER BY time ASC, local_data_id ASC',
array($max_time));
if (cacti_sizeof($rows)) {
$packet_size = 0;
$sql_array = array();
foreach ($rows as $r) {
$sql = '(' . $r['local_data_id'] . ',' . db_qstr($r['rrd_name']) . ',' . db_qstr($r['time']) . ',' . db_qstr($r['output']) . ')';
$sql_size = strlen($sql);
/* if adding a new row would exceed max_allowed_packet, send the current frame to the main poller and start a new frame */
if (($packet_size + $sql_size) >= $max_allowed_packet) {
$record_count = cacti_sizeof($sql_array);
cacti_log('RECOVERY: Writing ' . $record_count . ' records (' . $packet_size . ' bytes) to main (partial).', false, 'POLLER');
db_execute('INSERT IGNORE INTO poller_output_boost
(local_data_id, rrd_name, time, output)
VALUES ' . implode(',', $sql_array), true, $remote_db_cnn_id);
$records_inserted += $record_count;
$sql_array = array();
$packet_size = 0;
}
$sql_array[] = $sql;
$packet_size += $sql_size;
}
/* if there is data in the last frame, send it to main poller as well and finalize */
if ($packet_size > 0) {
$record_count = cacti_sizeof($sql_array);
cacti_log('RECOVERY: Writing ' . $record_count . ' records (' . $packet_size . ' bytes) to main (last slice).', false, 'POLLER');
db_execute('INSERT IGNORE INTO poller_output_boost
(local_data_id, rrd_name, time, output)
VALUES ' . implode(',', $sql_array), true, $remote_db_cnn_id);
$records_inserted += $record_count;
}
/* remove the recovery records */
if (is_object($local_db_cnn_id)) {
db_execute_prepared('DELETE FROM poller_output_boost
WHERE time <= ?',
array($max_time), true, $local_db_cnn_id);
}
}
sleep($sleep_time);
}
}
/* let the console know you are in online mode */
db_execute_prepared('UPDATE poller
SET status="2"
WHERE id= ?', array($poller_id), false, $remote_db_cnn_id);
} else {
debug('Recovery process still running, exiting');
cacti_log('RECOVERY: Recovery process still running for Poller ' . $poller_id . '. PID is ' . $recovery_pid, false, 'POLLER');
exit(1);
}
$end = microtime(true);
cacti_log('RECOVERY STATS: Time:' . round($end - $start, 2) . ' Records:' . $records_inserted, false, 'SYSTEM');
exit(0);