public static function High_Load_Monitor()
{
//--
if (is_array(self::$HighLoadMonitorStats)) {
return (array) self::$HighLoadMonitorStats;
// avoid re-run and serve from cache
}
//end if
//--
$tmp_sysload_avg = array();
//--
if (defined('SMART_FRAMEWORK_NETSERVER_MAXLOAD')) {
$tmp_max_load = (int) SMART_FRAMEWORK_NETSERVER_MAXLOAD;
} else {
$tmp_max_load = 0;
}
//end if
if ($tmp_max_load > 0) {
// run only if set to a value > 0
if (function_exists('sys_getloadavg')) {
$tmp_sysload_avg = (array) @sys_getloadavg();
$tmp_sysload_avg[0] = (int) $tmp_sysload_avg[0];
if ($tmp_sysload_avg[0] > $tmp_max_load) {
// protect against system overload over max
if (!headers_sent()) {
http_response_code(503);
} else {
Smart::log_notice('#SMART-FRAMEWORK-HIGH-LOAD-PROTECT#' . "\n" . 'SmartFramework // Web :: System Overload Protection: The System is Too Busy ... Try Again Later. The Load Averages reached the maximum allowed value by current settings ... [' . $tmp_sysload_avg[0] . ' of ' . $tmp_max_load . ']');
}
//end if else
die(SmartComponents::http_message_503_serviceunavailable('<h1>503 Service Unavailable - Too busy, try again later</h1><br><b>SmartFramework // Web :: System Overload Protection</b><br>The Load Averages reached the maximum allowed value by current settings ...'));
}
//end if
}
//end if
}
//end if
//--
self::$HighLoadMonitorStats = (array) $tmp_sysload_avg;
//--
return (array) self::$HighLoadMonitorStats;
//--
}
public static final function Raise503Error($y_msg)
{
//--
if (!headers_sent()) {
http_response_code(503);
} else {
Smart::log_warning('Headers Already Sent before 503 ...');
}
//end if else
die(SmartComponents::http_message_503_serviceunavailable(Smart::escape_html((string) $y_msg)));
//--
}
