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https://github.com/Cacti/cacti.git
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376 lines
12 KiB
PHP
376 lines
12 KiB
PHP
<?php
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/*
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+-------------------------------------------------------------------------+
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| Copyright (C) 2004-2023 The Cacti Group |
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| This program is free software; you can redistribute it and/or |
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| modify it under the terms of the GNU General Public License |
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| as published by the Free Software Foundation; either version 2 |
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| of the License, or (at your option) any later version. |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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+-------------------------------------------------------------------------+
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| Cacti: The Complete RRDtool-based Graphing Solution |
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+-------------------------------------------------------------------------+
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| This code is designed, written, and maintained by the Cacti Group. See |
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| about.php and/or the AUTHORS file for specific developer information. |
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+-------------------------------------------------------------------------+
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| http://www.cacti.net/ |
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+-------------------------------------------------------------------------+
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*/
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/* dsstats_debug - this simple routine print's a standard message to the console
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when running in debug mode.
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@returns - NULL */
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function dsdebug_debug($message) {
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global $debug;
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if ($debug) {
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print 'DSDEBUG: ' . $message . "\n";
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}
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}
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/* log_dsstats_statistics - provides generic timing message to both the Cacti log and the settings
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table so that the statistics can be graphed as well.
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@arg $type - (string) the type of statistics to log, either 'HOURLY', 'DAILY' or 'MAJOR'.
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@returns - null */
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function log_dsdebug_statistics($type, $checks, $issues) {
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global $start;
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/* take time and log performance data */
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$end = microtime(true);
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$cacti_stats = sprintf('ChecksPerformed:%d, TotalIssues:%d, Time:%01.4f ', $checks, $issues, round($end-$start,4));
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/* log to the database */
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set_config_option('stats_dsdebug_' . $type, $cacti_stats);
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/* log to the logfile */
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cacti_log('DSDEBUG STATS: Type:' . $type . ', ' . $cacti_stats , true, 'SYSTEM');
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}
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/* dsstats_error_handler - this routine logs all PHP error transactions
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to make sure they are properly logged.
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@arg $errno - (int) The errornum reported by the system
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@arg $errmsg - (string) The error message provides by the error
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@arg $filename - (string) The filename that encountered the error
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@arg $linenum - (int) The line number where the error occurred
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@arg $vars - (mixed) The current state of PHP variables.
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@returns - (bool) always returns true for some reason */
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function dsdebug_error_handler($errno, $errmsg, $filename, $linenum, $vars = []) {
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if (read_config_option('log_verbosity') >= POLLER_VERBOSITY_DEBUG) {
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/* define all error types */
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$errortype = array(
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E_ERROR => 'Error',
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E_WARNING => 'Warning',
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E_PARSE => 'Parsing Error',
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E_NOTICE => 'Notice',
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E_CORE_ERROR => 'Core Error',
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E_CORE_WARNING => 'Core Warning',
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E_COMPILE_ERROR => 'Compile Error',
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E_COMPILE_WARNING => 'Compile Warning',
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E_USER_ERROR => 'User Error',
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E_USER_WARNING => 'User Warning',
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E_USER_NOTICE => 'User Notice',
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E_STRICT => 'Runtime Notice'
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);
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if (defined('E_RECOVERABLE_ERROR')) {
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$errortype[E_RECOVERABLE_ERROR] = 'Catchable Fatal Error';
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}
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/* create an error string for the log */
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$err = "ERRNO:'" . $errno . "' TYPE:'" . $errortype[$errno] .
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"' MESSAGE:'" . $errmsg . "' IN FILE:'" . $filename .
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"' LINE NO:'" . $linenum . "'";
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/* let's ignore some lesser issues */
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if (substr_count($errmsg, 'date_default_timezone')) return;
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if (substr_count($errmsg, 'Only variables')) return;
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/* log the error to the Cacti log */
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cacti_log('PROGERR: ' . $err, false, 'DSDEBUG');
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}
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return;
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}
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function dsdebug_poller_output(&$rrd_update_array) {
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global $config, $ds_types, $ds_last, $ds_steps, $ds_multi;
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/* suppress warnings */
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if (defined('E_DEPRECATED')) {
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error_reporting(E_ALL ^ E_DEPRECATED);
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} else {
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error_reporting(E_ALL);
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}
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/* install the dsstats error handler */
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set_error_handler('dsdebug_error_handler');
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/* do not make any calculations unless enabled */
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$checks = db_fetch_assoc('SELECT * FROM data_debug WHERE `done` = 0');
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if (cacti_sizeof($checks)) {
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if (cacti_sizeof($rrd_update_array)) {
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foreach ($checks as $c) {
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foreach($rrd_update_array as $item) {
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if ($c['datasource'] == $item['local_data_id']) {
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if (isset($item['times'][key($item['times'])])) {
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$c['info'] = cacti_unserialize($c['info']);
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$c['info']['last_result'] = $item['times'][key($item['times'])];
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$c['info'] = serialize($c['info']);
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db_execute_prepared('UPDATE data_debug SET `info` = ? WHERE `id` = ?', array($c['info'], $c['id']));
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}
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}
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}
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}
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}
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}
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/* restore original error handler */
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restore_error_handler();
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}
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function dsdebug_poller_bottom() {
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global $config, $start;
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/* install the dsstats error handler */
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set_error_handler('dsdebug_error_handler');
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/* take time and log performance data */
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$start = microtime(true);
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if (!db_table_exists('data_debug')) {
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return true;
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}
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$checks = db_fetch_assoc('SELECT *
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FROM data_debug
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WHERE `done` = 0');
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if (!empty($checks)) {
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clearstatcache();
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$total_issues = 0;
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foreach ($checks as $c) {
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$c['issue'] = array();
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$info = cacti_unserialize($c['info']);
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$dtd = db_fetch_row_prepared('SELECT *
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FROM data_template_data
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WHERE local_data_id = ?',
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array($c['datasource']));
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if (!isset($dtd['local_data_id'])) {
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$c['issue'][] = __('Data Source ID %s does not exist', $c['datasource']);
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$c['done'] = 1;
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$total_issues++;
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} else {
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if (read_config_option('boost_rrd_update_enable') == 'on') {
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boost_process_poller_output($c['datasource']);
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}
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$real_path = str_replace('<path_rra>', $config['rra_path'], $dtd['data_source_path']);
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// rrd_folder_writable
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$info['rrd_folder_writable'] = (is_resource_writable(dirname($real_path) . '/') ? 1 : 0);
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// rrd_exists
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$info['rrd_exists'] = (file_exists($real_path) ? 1 : 0);
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// rrd_writable
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$info['rrd_writable'] = (is_resource_writable($real_path) ? 1 : 0);
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// active
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$info['active'] = $dtd['active'];
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// owner
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if ($config['cacti_server_os'] == 'win32') {
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$info['owner'] = '<unable to determine on windows>';
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} else {
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$o = posix_getpwuid(fileowner($real_path));
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$o = $o['name'];
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$g = posix_getgrgid(filegroup($real_path));
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$g = $g['name'];
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$info['owner'] = $o . ':' . $g;
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}
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// poller_runas
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$info['runas_poller'] = get_running_user();
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// convert_name
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$info['convert_name'] = (strpos('|', get_data_source_title($c['datasource'])) === false ? 1 : 0);
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// last_result (processed by hook)
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if (is_array($info['last_result']) && !empty($info['last_result']) && $info['valid_data'] == '') {
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$info['valid_data'] = 1;
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foreach ($info['last_result'] as $k => $l) {
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if ($l == 'U') {
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cacti_log('Bad Data Found for Data Source ID ' . $c['datasource'], false, 'DSDEBUG');
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$info['valid_data'] = 0;
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$total_issues++;
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}
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}
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}
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// rrd_match
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$rrdinfo = rrdtool_function_info($c['datasource']);
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if (cacti_sizeof($rrdinfo)) {
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$comp = rrdtool_cacti_compare($c['datasource'], $rrdinfo);
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$info['rrd_match'] = (is_array($comp) && empty($comp) ? 1 : 0);
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$info['rrd_match_array'] = $comp;
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$info['rrd_info'] = $rrdinfo;
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// rra_timestamp
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if ($info['rra_timestamp'] != ''
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&& isset($rrdinfo['last_update'])
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&& $info['rra_timestamp'] != $rrdinfo['last_update']) {
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$info['rra_timestamp2'] = $rrdinfo['last_update'];
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}
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if (isset($rrdinfo['last_update']) && $info['rra_timestamp'] == '') {
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$info['rra_timestamp'] = $rrdinfo['last_update'];
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}
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$c['done'] = 1;
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$f = array();
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foreach ($info as $k => $v) {
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if ($v === '') {
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$c['done'] = 0;
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$f[] = $k;
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}
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}
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if ($c['started'] < time() - ($dtd['rrd_step'] * 5)) {
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$c['done'] = 1;
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$c['issue'][] = __('Debug not completed after 5 pollings');
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$c['issue'][] = __('Failed fields: ') . implode(', ', $f);
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$total_issues++;
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}
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// Try to determine issue
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// Not set as Active
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// Log permanent fails first
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if ($info['active'] != 'on') {
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$c['issue'][] = __('Data Source is not set as Active');
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$c['done'] = 1;
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$total_issues++;
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}
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// File Permissions
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if ((!$info['rrd_exists'] || !$info['rrd_writable']) && !$info['rrd_folder_writable']) {
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$c['issue'][] = __('RRDfile Folder (rra) is not writable by Poller. Folder owner: %s. Poller runs as: %s', $o, $info['runas_poller']);
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$c['done'] = 1;
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$total_issues++;
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} elseif (!$info['rrd_writable']) {
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$c['issue'][] = __('RRDfile is not writable by Poller. RRDfile owner: %s. Poller runs as %s', $o, $info['runas_poller']);
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$c['done'] = 1;
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$total_issues++;
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}
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// For errors that only appear after so many errors next
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if ($c['done'] == 1) {
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if ($info['rrd_match'] == 0) {
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$c['issue'][] = __('RRDfile does not match Data Source');
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$total_issues++;
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}
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if ($info['rra_timestamp2'] == '') {
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$c['issue'][] = __('RRDfile not updated after polling');
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$total_issues++;
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}
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if (is_array($info['last_result']) && !empty($info['last_result'])) {
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foreach ($info['last_result'] as $k => $l) {
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if ($l == 'U') {
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$c['issue'][] = __('Data Source returned Bad Results for ' . $k);
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$total_issues++;
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}
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}
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} elseif ($info['last_result'] == '') {
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$c['issue'][] = __('Data Source was not polled');
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$total_issues++;
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}
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if ($c['issue'] == '') {
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$c['issue'][] = __('No issues found');
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}
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}
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} else {
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$c['issue'][] = __('RRDfile not created yet');
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$total_issues++;
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}
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$info = serialize($info);
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db_execute_prepared('UPDATE data_debug
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SET `done` = ?, `info` = ?, `issue` = ?
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WHERE id = ?',
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array($c['done'], $info, trim(implode("\n", $c['issue'])), $c['id']));
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}
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}
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log_dsdebug_statistics('poller', cacti_sizeof($checks), $total_issues);
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}
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restore_error_handler();
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}
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function dsdebug_run_repair($id) {
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$check = db_fetch_row_prepared('SELECT *
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FROM data_debug
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WHERE datasource = ?',
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array($id));
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if (cacti_sizeof($check)) {
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$check['info'] = cacti_unserialize($check['info']);
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if (isset($check['info']['rrd_match_array']['tune'])) {
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$path = get_data_source_path($id, true);
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if (is_writeable($path)) {
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$rrdtool_path = read_config_option('path_rrdtool');
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$failures = 0;
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$failure_data = '';
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foreach($check['info']['rrd_match_array']['tune'] AS $options) {
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$command = $rrdtool_path . ' tune ' . $options;
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$output = rrdtool_execute('tune ' . $options, false, RRDTOOL_OUTPUT_RETURN_STDERR);
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if ($output == '') {
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cacti_log("RRDfile repair command succeeded for DS[$id] Command[$command]", false, 'DSDEBUG');
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} else {
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cacti_log("ERROR: RRDfile repair command failed for DS[$id] Command[$command] Output[$output]", false, 'DSDEBUG');
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$failures++;
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}
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}
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if ($failures == 0) {
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return true;
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}
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} else {
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cacti_log("ERROR: RRDfile Repair Command Failed for DS[$id] Output[Unable to write RRDfile]", false, 'DSDEBUG');
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}
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} else {
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cacti_log("ERROR: RRDfile Repair Command Could not be run for DS[$id] Output[No tune recommendation found]", false, 'DSDEBUG');
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}
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} else {
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cacti_log("ERROR: RRDfile Repair Command Could not be run for DS[$id] Output[No Data Source debug information found]", false, 'DSDEBUG');
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}
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return false;
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}
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