165 lines
4.4 KiB
PHP
165 lines
4.4 KiB
PHP
<?php
|
|
if (!file_exists("boot.php") AND (sizeof($_SERVER["argv"]) != 0)) {
|
|
$directory = dirname($_SERVER["argv"][0]);
|
|
|
|
if (substr($directory, 0, 1) != "/")
|
|
$directory = $_SERVER["PWD"]."/".$directory;
|
|
|
|
$directory = realpath($directory."/..");
|
|
|
|
chdir($directory);
|
|
}
|
|
|
|
require_once("boot.php");
|
|
|
|
function poller_run(&$argv, &$argc){
|
|
global $a, $db;
|
|
|
|
if(is_null($a)) {
|
|
$a = new App;
|
|
}
|
|
|
|
if(is_null($db)) {
|
|
@include(".htconfig.php");
|
|
require_once("include/dba.php");
|
|
$db = new dba($db_host, $db_user, $db_pass, $db_data);
|
|
unset($db_host, $db_user, $db_pass, $db_data);
|
|
};
|
|
|
|
if(function_exists('sys_getloadavg')) {
|
|
$maxsysload = intval(get_config('system','maxloadavg'));
|
|
if($maxsysload < 1)
|
|
$maxsysload = 50;
|
|
|
|
$load = sys_getloadavg();
|
|
if(intval($load[0]) > $maxsysload) {
|
|
logger('system: load ' . $load[0] . ' too high. poller deferred to next scheduled run.');
|
|
return;
|
|
}
|
|
}
|
|
|
|
if(($argc <= 1) OR ($argv[1] != "no_cron")) {
|
|
// Run the cron job that calls all other jobs
|
|
proc_run("php","include/cron.php");
|
|
|
|
// Run the cronhooks job separately from cron for being able to use a different timing
|
|
proc_run("php","include/cronhooks.php");
|
|
|
|
// Cleaning dead processes
|
|
$r = q("SELECT DISTINCT(`pid`) FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
|
|
foreach($r AS $pid)
|
|
if (!posix_kill($pid["pid"], 0))
|
|
q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `pid` = 0 WHERE `pid` = %d",
|
|
intval($pid["pid"]));
|
|
else {
|
|
// To-Do: Kill long running processes
|
|
// But: Update processes (like the database update) mustn't be killed
|
|
}
|
|
|
|
} else
|
|
// Sleep two seconds before checking for running processes to avoid having too many workers
|
|
sleep(4);
|
|
|
|
// Checking number of workers
|
|
if (poller_too_much_workers())
|
|
return;
|
|
|
|
$starttime = time();
|
|
|
|
while ($r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `created` LIMIT 1")) {
|
|
|
|
q("UPDATE `workerqueue` SET `executed` = '%s', `pid` = %d WHERE `id` = %d AND `executed` = '0000-00-00 00:00:00'",
|
|
dbesc(datetime_convert()),
|
|
intval(getmypid()),
|
|
intval($r[0]["id"]));
|
|
|
|
// Assure that there are no tasks executed twice
|
|
$id = q("SELECT `id` FROM `workerqueue` WHERE `id` = %d AND `pid` = %d",
|
|
intval($r[0]["id"]),
|
|
intval(getmypid()));
|
|
if (!$id) {
|
|
logger("Queue item ".$r[0]["id"]." was executed multiple times - skip this execution", LOGGER_DEBUG);
|
|
continue;
|
|
}
|
|
|
|
$argv = json_decode($r[0]["parameter"]);
|
|
|
|
$argc = count($argv);
|
|
|
|
// Check for existance and validity of the include file
|
|
$include = $argv[0];
|
|
|
|
if (!validate_include($include)) {
|
|
logger("Include file ".$argv[0]." is not valid!");
|
|
q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
|
|
continue;
|
|
}
|
|
|
|
require_once($include);
|
|
|
|
$funcname=str_replace(".php", "", basename($argv[0]))."_run";
|
|
|
|
if (function_exists($funcname)) {
|
|
logger("Process ".getmypid().": ".$funcname." ".$r[0]["parameter"]);
|
|
$funcname($argv, $argc);
|
|
|
|
logger("Process ".getmypid().": ".$funcname." - done");
|
|
|
|
q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
|
|
} else
|
|
logger("Function ".$funcname." does not exist");
|
|
|
|
// Quit the poller once every hour
|
|
if (time() > ($starttime + 3600))
|
|
return;
|
|
|
|
// Count active workers and compare them with a maximum value that depends on the load
|
|
if (poller_too_much_workers())
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
function poller_too_much_workers() {
|
|
|
|
$queues = get_config("system", "worker_queues");
|
|
|
|
if ($queues == 0)
|
|
$queues = 4;
|
|
|
|
$active = poller_active_workers();
|
|
|
|
// Decrease the number of workers at higher load
|
|
if(function_exists('sys_getloadavg')) {
|
|
$load = max(sys_getloadavg());
|
|
|
|
$maxsysload = intval(get_config('system','maxloadavg'));
|
|
if($maxsysload < 1)
|
|
$maxsysload = 50;
|
|
|
|
$maxworkers = $queues;
|
|
|
|
// Some magical mathemathics to reduce the workers
|
|
$exponent = 3;
|
|
$slope = $maxworkers / pow($maxsysload, $exponent);
|
|
$queues = ceil($slope * pow(max(0, $maxsysload - $load), $exponent));
|
|
|
|
logger("Current load: ".$load." - maximum: ".$maxsysload." - current queues: ".$active." - maximum: ".$queues, LOGGER_DEBUG);
|
|
|
|
}
|
|
|
|
return($active >= $queues);
|
|
}
|
|
|
|
function poller_active_workers() {
|
|
$workers = q("SELECT COUNT(*) AS `workers` FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
|
|
|
|
return($workers[0]["workers"]);
|
|
}
|
|
|
|
if (array_search(__file__,get_included_files())===0){
|
|
poller_run($_SERVER["argv"],$_SERVER["argc"]);
|
|
killme();
|
|
}
|
|
?>
|