include/poller.php

   1 <?php
   2 if (!file_exists("boot.php") AND (sizeof($_SERVER["argv"]) != 0)) {
   3         $directory = dirname($_SERVER["argv"][0]);
   4
   5         if (substr($directory, 0, 1) != "/")
   6                 $directory = $_SERVER["PWD"]."/".$directory;
   7
   8         $directory = realpath($directory."/..");
   9
  10         chdir($directory);
  11 }
  12
  13 use \Friendica\Core\Config;
  14
  15 require_once("boot.php");
  16
  17 function poller_run($argv, $argc){
  18         global $a, $db;
  19
  20         if(is_null($a)) {
  21                 $a = new App;
  22         }
  23
  24         if(is_null($db)) {
  25                 @include(".htconfig.php");
  26                 require_once("include/dba.php");
  27                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
  28                 unset($db_host, $db_user, $db_pass, $db_data);
  29         };
  30
  31         Config::load();
  32
  33         // Quit when in maintenance
  34         if (Config::get('system', 'maintenance', true)) {
  35                 return;
  36         }
  37
  38         $a->set_baseurl(Config::get('system', 'url'));
  39
  40         load_hooks();
  41
  42         $a->start_process();
  43
  44         if (poller_max_connections_reached()) {
  45                 return;
  46         }
  47
  48         if ($a->maxload_reached()) {
  49                 return;
  50         }
  51
  52         if(($argc <= 1) OR ($argv[1] != "no_cron")) {
  53                 poller_run_cron();
  54         }
  55
  56         if ($a->max_processes_reached()) {
  57                 return;
  58         }
  59
  60         // Checking the number of workers
  61         if (poller_too_much_workers()) {
  62                 poller_kill_stale_workers();
  63                 return;
  64         }
  65
  66         $starttime = time();
  67
  68         while ($r = poller_worker_process()) {
  69
  70                 // Count active workers and compare them with a maximum value that depends on the load
  71                 if (poller_too_much_workers()) {
  72                         return;
  73                 }
  74
  75                 if (!poller_execute($r[0])) {
  76                         return;
  77                 }
  78
  79                 // Quit the poller once every hour
  80                 if (time() > ($starttime + 3600))
  81                         return;
  82         }
  83
  84 }
  85
  86 /**
  87  * @brief Execute a worker entry
  88  *
  89  * @param array $queue Workerqueue entry
  90  *
  91  * @return boolean "true" if further processing should be stopped
  92  */
  93 function poller_execute($queue) {
  94
  95         $a = get_app();
  96
  97         $mypid = getmypid();
  98
  99         // Quit when in maintenance
 100         if (Config::get('system', 'maintenance', true)) {
 101                 return false;
 102         }
 103
 104         // Constantly check the number of parallel database processes
 105         if ($a->max_processes_reached()) {
 106                 return false;
 107         }
 108
 109         // Constantly check the number of available database connections to let the frontend be accessible at any time
 110         if (poller_max_connections_reached()) {
 111                 return false;
 112         }
 113
 114         $upd = q("UPDATE `workerqueue` SET `executed` = '%s', `pid` = %d WHERE `id` = %d AND `pid` = 0",
 115                 dbesc(datetime_convert()),
 116                 intval($mypid),
 117                 intval($queue["id"]));
 118
 119         if (!$upd) {
 120                 logger("Couldn't update queue entry ".$queue["id"]." - skip this execution", LOGGER_DEBUG);
 121                 q("COMMIT");
 122                 return true;
 123         }
 124
 125         // Assure that there are no tasks executed twice
 126         $id = q("SELECT `pid`, `executed` FROM `workerqueue` WHERE `id` = %d", intval($queue["id"]));
 127         if (!$id) {
 128                 logger("Queue item ".$queue["id"]." vanished - skip this execution", LOGGER_DEBUG);
 129                 q("COMMIT");
 130                 return true;
 131         } elseif ((strtotime($id[0]["executed"]) <= 0) OR ($id[0]["pid"] == 0)) {
 132                 logger("Entry for queue item ".$queue["id"]." wasn't stored - skip this execution", LOGGER_DEBUG);
 133                 q("COMMIT");
 134                 return true;
 135         } elseif ($id[0]["pid"] != $mypid) {
 136                 logger("Queue item ".$queue["id"]." is to be executed by process ".$id[0]["pid"]." and not by me (".$mypid.") - skip this execution", LOGGER_DEBUG);
 137                 q("COMMIT");
 138                 return true;
 139         }
 140         q("COMMIT");
 141
 142         $argv = json_decode($queue["parameter"]);
 143
 144         // Check for existance and validity of the include file
 145         $include = $argv[0];
 146
 147         if (!validate_include($include)) {
 148                 logger("Include file ".$argv[0]." is not valid!");
 149                 q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($queue["id"]));
 150                 return true;
 151         }
 152
 153         require_once($include);
 154
 155         $funcname = str_replace(".php", "", basename($argv[0]))."_run";
 156
 157         if (function_exists($funcname)) {
 158
 159                 poller_exec_function($queue, $funcname, $argv);
 160
 161                 q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($queue["id"]));
 162         } else {
 163                 logger("Function ".$funcname." does not exist");
 164         }
 165
 166         return true;
 167 }
 168
 169 /**
 170  * @brief Execute a function from the queue
 171  *
 172  * @param array $queue Workerqueue entry
 173  * @param string $funcname name of the function
 174  * @param array $argv Array of values to be passed to the function
 175  */
 176 function poller_exec_function($queue, $funcname, $argv) {
 177
 178         $a = get_app();
 179
 180         $mypid = getmypid();
 181
 182         $argc = count($argv);
 183
 184         logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." ".$queue["parameter"]);
 185
 186         $stamp = (float)microtime(true);
 187
 188         // We use the callstack here to analyze the performance of executed worker entries.
 189         // For this reason the variables have to be initialized.
 190         if (Config::get("system", "profiler")) {
 191                 $a->performance["start"] = microtime(true);
 192                 $a->performance["database"] = 0;
 193                 $a->performance["database_write"] = 0;
 194                 $a->performance["network"] = 0;
 195                 $a->performance["file"] = 0;
 196                 $a->performance["rendering"] = 0;
 197                 $a->performance["parser"] = 0;
 198                 $a->performance["marktime"] = 0;
 199                 $a->performance["markstart"] = microtime(true);
 200                 $a->callstack = array();
 201         }
 202
 203         // For better logging create a new process id for every worker call
 204         // But preserve the old one for the worker
 205         $old_process_id = $a->process_id;
 206         $a->process_id = uniqid("wrk", true);
 207
 208         $funcname($argv, $argc);
 209
 210         $a->process_id = $old_process_id;
 211
 212         $duration = number_format(microtime(true) - $stamp, 3);
 213
 214         logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - done in ".$duration." seconds.");
 215
 216         // Write down the performance values into the log
 217         if (Config::get("system", "profiler")) {
 218                 $duration = microtime(true)-$a->performance["start"];
 219
 220                 if (Config::get("rendertime", "callstack")) {
 221                         if (isset($a->callstack["database"])) {
 222                                 $o = "\nDatabase Read:\n";
 223                                 foreach ($a->callstack["database"] AS $func => $time) {
 224                                         $time = round($time, 3);
 225                                         if ($time > 0)
 226                                                 $o .= $func.": ".$time."\n";
 227                                 }
 228                         }
 229                         if (isset($a->callstack["database_write"])) {
 230                                 $o .= "\nDatabase Write:\n";
 231                                 foreach ($a->callstack["database_write"] AS $func => $time) {
 232                                         $time = round($time, 3);
 233                                         if ($time > 0)
 234                                                 $o .= $func.": ".$time."\n";
 235                                 }
 236                         }
 237                         if (isset($a->callstack["network"])) {
 238                                 $o .= "\nNetwork:\n";
 239                                 foreach ($a->callstack["network"] AS $func => $time) {
 240                                         $time = round($time, 3);
 241                                         if ($time > 0)
 242                                                 $o .= $func.": ".$time."\n";
 243                                 }
 244                         }
 245                 } else {
 246                         $o = '';
 247                 }
 248
 249                 logger("ID ".$queue["id"].": ".$funcname.": ".sprintf("DB: %s/%s, Net: %s, I/O: %s, Other: %s, Total: %s".$o,
 250                         number_format($a->performance["database"] - $a->performance["database_write"], 2),
 251                         number_format($a->performance["database_write"], 2),
 252                         number_format($a->performance["network"], 2),
 253                         number_format($a->performance["file"], 2),
 254                         number_format($duration - ($a->performance["database"] + $a->performance["network"] + $a->performance["file"]), 2),
 255                         number_format($duration, 2)),
 256                         LOGGER_DEBUG);
 257         }
 258
 259         $cooldown = Config::get("system", "worker_cooldown", 0);
 260
 261         if ($cooldown > 0) {
 262                 logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - in cooldown for ".$cooldown." seconds");
 263                 sleep($cooldown);
 264         }
 265 }
 266
 267 /**
 268  * @brief Checks if the number of database connections has reached a critical limit.
 269  *
 270  * @return bool Are more than 3/4 of the maximum connections used?
 271  */
 272 function poller_max_connections_reached() {
 273
 274         // Fetch the max value from the config. This is needed when the system cannot detect the correct value by itself.
 275         $max = Config::get("system", "max_connections");
 276
 277         // Fetch the percentage level where the poller will get active
 278         $maxlevel = Config::get("system", "max_connections_level", 75);
 279
 280         if ($max == 0) {
 281                 // the maximum number of possible user connections can be a system variable
 282                 $r = q("SHOW VARIABLES WHERE `variable_name` = 'max_user_connections'");
 283                 if ($r)
 284                         $max = $r[0]["Value"];
 285
 286                 // Or it can be granted. This overrides the system variable
 287                 $r = q("SHOW GRANTS");
 288                 if ($r)
 289                         foreach ($r AS $grants) {
 290                                 $grant = array_pop($grants);
 291                                 if (stristr($grant, "GRANT USAGE ON"))
 292                                         if (preg_match("/WITH MAX_USER_CONNECTIONS (\d*)/", $grant, $match))
 293                                                 $max = $match[1];
 294                         }
 295         }
 296
 297         // If $max is set we will use the processlist to determine the current number of connections
 298         // The processlist only shows entries of the current user
 299         if ($max != 0) {
 300                 $r = q("SHOW PROCESSLIST");
 301                 if (!dbm::is_result($r))
 302                         return false;
 303
 304                 $used = count($r);
 305
 306                 logger("Connection usage (user values): ".$used."/".$max, LOGGER_DEBUG);
 307
 308                 $level = ($used / $max) * 100;
 309
 310                 if ($level >= $maxlevel) {
 311                         logger("Maximum level (".$maxlevel."%) of user connections reached: ".$used."/".$max);
 312                         return true;
 313                 }
 314         }
 315
 316         // We will now check for the system values.
 317         // This limit could be reached although the user limits are fine.
 318         $r = q("SHOW VARIABLES WHERE `variable_name` = 'max_connections'");
 319         if (!$r)
 320                 return false;
 321
 322         $max = intval($r[0]["Value"]);
 323         if ($max == 0)
 324                 return false;
 325
 326         $r = q("SHOW STATUS WHERE `variable_name` = 'Threads_connected'");
 327         if (!$r)
 328                 return false;
 329
 330         $used = intval($r[0]["Value"]);
 331         if ($used == 0)
 332                 return false;
 333
 334         logger("Connection usage (system values): ".$used."/".$max, LOGGER_DEBUG);
 335
 336         $level = $used / $max * 100;
 337
 338         if ($level < $maxlevel)
 339                 return false;
 340
 341         logger("Maximum level (".$level."%) of system connections reached: ".$used."/".$max);
 342         return true;
 343 }
 344
 345 /**
 346  * @brief fix the queue entry if the worker process died
 347  *
 348  */
 349 function poller_kill_stale_workers() {
 350         $r = q("SELECT `pid`, `executed`, `priority`, `parameter` FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
 351
 352         if (!dbm::is_result($r)) {
 353                 // No processing here needed
 354                 return;
 355         }
 356
 357         foreach($r AS $pid)
 358                 if (!posix_kill($pid["pid"], 0))
 359                         q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `pid` = 0 WHERE `pid` = %d",
 360                                 intval($pid["pid"]));
 361                 else {
 362                         // Kill long running processes
 363
 364                         // Check if the priority is in a valid range
 365                         if (!in_array($pid["priority"], array(PRIORITY_CRITICAL, PRIORITY_HIGH, PRIORITY_MEDIUM, PRIORITY_LOW, PRIORITY_NEGLIGIBLE)))
 366                                 $pid["priority"] = PRIORITY_MEDIUM;
 367
 368                         // Define the maximum durations
 369                         $max_duration_defaults = array(PRIORITY_CRITICAL => 360, PRIORITY_HIGH => 10, PRIORITY_MEDIUM => 60, PRIORITY_LOW => 180, PRIORITY_NEGLIGIBLE => 360);
 370                         $max_duration = $max_duration_defaults[$pid["priority"]];
 371
 372                         $argv = json_decode($pid["parameter"]);
 373                         $argv[0] = basename($argv[0]);
 374
 375                         // How long is the process already running?
 376                         $duration = (time() - strtotime($pid["executed"])) / 60;
 377                         if ($duration > $max_duration) {
 378                                 logger("Worker process ".$pid["pid"]." (".implode(" ", $argv).") took more than ".$max_duration." minutes. It will be killed now.");
 379                                 posix_kill($pid["pid"], SIGTERM);
 380
 381                                 // We killed the stale process.
 382                                 // To avoid a blocking situation we reschedule the process at the beginning of the queue.
 383                                 // Additionally we are lowering the priority.
 384                                 q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `created` = '%s',
 385                                                         `priority` = %d, `pid` = 0 WHERE `pid` = %d",
 386                                         dbesc(datetime_convert()),
 387                                         intval(PRIORITY_NEGLIGIBLE),
 388                                         intval($pid["pid"]));
 389                         } else
 390                                 logger("Worker process ".$pid["pid"]." (".implode(" ", $argv).") now runs for ".round($duration)." of ".$max_duration." allowed minutes. That's okay.", LOGGER_DEBUG);
 391                 }
 392 }
 393
 394 /**
 395  * @brief Checks if the number of active workers exceeds the given limits
 396  *
 397  * @return bool Are there too much workers running?
 398  */
 399 function poller_too_much_workers() {
 400         $queues = Config::get("system", "worker_queues", 4);
 401
 402         $maxqueues = $queues;
 403
 404         $active = poller_active_workers();
 405
 406         // Decrease the number of workers at higher load
 407         $load = current_load();
 408         if($load) {
 409                 $maxsysload = intval(Config::get("system", "maxloadavg", 50));
 410
 411                 $maxworkers = $queues;
 412
 413                 // Some magical mathemathics to reduce the workers
 414                 $exponent = 3;
 415                 $slope = $maxworkers / pow($maxsysload, $exponent);
 416                 $queues = ceil($slope * pow(max(0, $maxsysload - $load), $exponent));
 417
 418                 $s = q("SELECT COUNT(*) AS `total` FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00'");
 419                 $entries = $s[0]["total"];
 420
 421                 if (Config::get("system", "worker_fastlane", false) AND ($queues > 0) AND ($entries > 0) AND ($active >= $queues)) {
 422                         $s = q("SELECT `priority` FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `priority` LIMIT 1");
 423                         $top_priority = $s[0]["priority"];
 424
 425                         $s = q("SELECT `id` FROM `workerqueue` WHERE `priority` <= %d AND `executed` != '0000-00-00 00:00:00' LIMIT 1",
 426                                 intval($top_priority));
 427                         $high_running = dbm::is_result($s);
 428
 429                         if (!$high_running AND ($top_priority > PRIORITY_UNDEFINED) AND ($top_priority < PRIORITY_NEGLIGIBLE)) {
 430                                 logger("There are jobs with priority ".$top_priority." waiting but none is executed. Open a fastlane.", LOGGER_DEBUG);
 431                                 $queues = $active + 1;
 432                         }
 433                 }
 434
 435                 // Create a list of queue entries grouped by their priority
 436                 $running = array(PRIORITY_CRITICAL => 0,
 437                                 PRIORITY_HIGH => 0,
 438                                 PRIORITY_MEDIUM => 0,
 439                                 PRIORITY_LOW => 0,
 440                                 PRIORITY_NEGLIGIBLE => 0);
 441
 442                 $r = q("SELECT COUNT(*) AS `running`, `priority` FROM `process` INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid` GROUP BY `priority`");
 443                 if (dbm::is_result($r))
 444                         foreach ($r AS $process)
 445                                 $running[$process["priority"]] = $process["running"];
 446
 447                 $processlist = "";
 448                 $r = q("SELECT COUNT(*) AS `entries`, `priority` FROM `workerqueue` GROUP BY `priority`");
 449                 if (dbm::is_result($r))
 450                         foreach ($r as $entry) {
 451                                 if ($processlist != "")
 452                                         $processlist .= ", ";
 453                                 $processlist .= $entry["priority"].":".$running[$entry["priority"]]."/".$entry["entries"];
 454                         }
 455
 456                 logger("Load: ".$load."/".$maxsysload." - processes: ".$active."/".$entries." (".$processlist.") - maximum: ".$queues."/".$maxqueues, LOGGER_DEBUG);
 457
 458                 // Are there fewer workers running as possible? Then fork a new one.
 459                 if (!Config::get("system", "worker_dont_fork") AND ($queues > ($active + 1)) AND ($entries > 1)) {
 460                         logger("Active workers: ".$active."/".$queues." Fork a new worker.", LOGGER_DEBUG);
 461                         $args = array("include/poller.php", "no_cron");
 462                         $a = get_app();
 463                         $a->proc_run($args);
 464                 }
 465         }
 466
 467         return($active >= $queues);
 468 }
 469
 470 /**
 471  * @brief Returns the number of active poller processes
 472  *
 473  * @return integer Number of active poller processes
 474  */
 475 function poller_active_workers() {
 476         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'poller.php'");
 477
 478         return($workers[0]["processes"]);
 479 }
 480
 481 /**
 482  * @brief Check if we should pass some slow processes
 483  *
 484  * When the active processes of the highest priority are using more than 2/3
 485  * of all processes, we let pass slower processes.
 486  *
 487  * @param string $highest_priority Returns the currently highest priority
 488  * @return bool We let pass a slower process than $highest_priority
 489  */
 490 function poller_passing_slow(&$highest_priority) {
 491
 492         $highest_priority = 0;
 493
 494         $r = q("SELECT `priority`
 495                 FROM `process`
 496                 INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid`");
 497
 498         // No active processes at all? Fine
 499         if (!dbm::is_result($r))
 500                 return(false);
 501
 502         $priorities = array();
 503         foreach ($r AS $line)
 504                 $priorities[] = $line["priority"];
 505
 506         // Should not happen
 507         if (count($priorities) == 0)
 508                 return(false);
 509
 510         $highest_priority = min($priorities);
 511
 512         // The highest process is already the slowest one?
 513         // Then we quit
 514         if ($highest_priority == PRIORITY_NEGLIGIBLE)
 515                 return(false);
 516
 517         $high = 0;
 518         foreach ($priorities AS $priority)
 519                 if ($priority == $highest_priority)
 520                         ++$high;
 521
 522         logger("Highest priority: ".$highest_priority." Total processes: ".count($priorities)." Count high priority processes: ".$high, LOGGER_DEBUG);
 523         $passing_slow = (($high/count($priorities)) > (2/3));
 524
 525         if ($passing_slow)
 526                 logger("Passing slower processes than priority ".$highest_priority, LOGGER_DEBUG);
 527
 528         return($passing_slow);
 529 }
 530
 531 /**
 532  * @brief Returns the next worker process
 533  *
 534  * @return string SQL statement
 535  */
 536 function poller_worker_process() {
 537
 538         q("START TRANSACTION;");
 539
 540         // Check if we should pass some low priority process
 541         $highest_priority = 0;
 542
 543         if (poller_passing_slow($highest_priority)) {
 544                 // Are there waiting processes with a higher priority than the currently highest?
 545                 $r = q("SELECT * FROM `workerqueue`
 546                                 WHERE `executed` = '0000-00-00 00:00:00' AND `priority` < %d
 547                                 ORDER BY `priority`, `created` LIMIT 1", dbesc($highest_priority));
 548                 if (dbm::is_result($r))
 549                         return $r;
 550
 551                 // Give slower processes some processing time
 552                 $r = q("SELECT * FROM `workerqueue`
 553                                 WHERE `executed` = '0000-00-00 00:00:00' AND `priority` > %d
 554                                 ORDER BY `priority`, `created` LIMIT 1", dbesc($highest_priority));
 555         }
 556
 557         // If there is no result (or we shouldn't pass lower processes) we check without priority limit
 558         if (($highest_priority == 0) OR !dbm::is_result($r))
 559                 $r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `priority`, `created` LIMIT 1");
 560
 561         return $r;
 562 }
 563
 564 /**
 565  * @brief Call the front end worker
 566  */
 567 function call_worker() {
 568         if (!Config::get("system", "frontend_worker")) {
 569                 return;
 570         }
 571
 572         $url = App::get_baseurl()."/worker";
 573         fetch_url($url, false, $redirects, 1);
 574 }
 575
 576 /**
 577  * @brief Call the front end worker if there aren't any active
 578  */
 579 function call_worker_if_idle() {
 580         if (!Config::get("system", "frontend_worker")) {
 581                 return;
 582         }
 583
 584         // Do we have "proc_open"? Then we can fork the poller
 585         if (function_exists("proc_open")) {
 586                 // When was the last time that we called the worker?
 587                 // Less than one minute? Then we quit
 588                 if ((time() - Config::get("system", "worker_started")) < 60) {
 589                         return;
 590                 }
 591
 592                 set_config("system", "worker_started", time());
 593
 594                 // Do we have enough running workers? Then we quit here.
 595                 if (poller_too_much_workers()) {
 596                         // Cleaning dead processes
 597                         poller_kill_stale_workers();
 598                         get_app()->remove_inactive_processes();
 599
 600                         return;
 601                 }
 602
 603                 poller_run_cron();
 604
 605                 logger('Call poller', LOGGER_DEBUG);
 606
 607                 $args = array("include/poller.php", "no_cron");
 608                 $a = get_app();
 609                 $a->proc_run($args);
 610                 return;
 611         }
 612
 613         // We cannot execute background processes.
 614         // We now run the processes from the frontend.
 615         // This won't work with long running processes.
 616         poller_run_cron();
 617
 618         clear_worker_processes();
 619
 620         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
 621
 622         if ($workers[0]["processes"] == 0) {
 623                 call_worker();
 624         }
 625 }
 626
 627 /**
 628  * @brief Removes long running worker processes
 629  */
 630 function clear_worker_processes() {
 631         $timeout = Config::get("system", "frontend_worker_timeout", 10);
 632
 633         /// @todo We should clean up the corresponding workerqueue entries as well
 634         q("DELETE FROM `process` WHERE `created` < '%s' AND `command` = 'worker.php'",
 635                 dbesc(datetime_convert('UTC','UTC',"now - ".$timeout." minutes")));
 636 }
 637
 638 /**
 639  * @brief Runs the cron processes
 640  */
 641 function poller_run_cron() {
 642         logger('Add cron entries', LOGGER_DEBUG);
 643
 644         // Check for spooled items
 645         proc_run(PRIORITY_HIGH, "include/spool_post.php");
 646
 647         // Run the cron job that calls all other jobs
 648         proc_run(PRIORITY_MEDIUM, "include/cron.php");
 649
 650         // Run the cronhooks job separately from cron for being able to use a different timing
 651         proc_run(PRIORITY_MEDIUM, "include/cronhooks.php");
 652
 653         // Cleaning dead processes
 654         poller_kill_stale_workers();
 655 }
 656
 657 if (array_search(__file__,get_included_files())===0){
 658         poller_run($_SERVER["argv"],$_SERVER["argc"]);
 659
 660         get_app()->end_process();
 661
 662         killme();
 663 }
 664 ?>