<?php
-
use Friendica\App;
-use Friendica\Core\System;
+use Friendica\Core\Worker;
use Friendica\Core\Config;
-use Friendica\Util\Lock;
if (!file_exists("boot.php") && (sizeof($_SERVER["argv"]) != 0)) {
$directory = dirname($_SERVER["argv"][0]);
require_once("boot.php");
-function poller_run($argv, $argc){
- global $a, $db, $poller_up_start, $poller_db_duration;
-
- $poller_up_start = microtime(true);
+function poller_run($argv, $argc) {
+ global $a;
- $a = new App(dirname(__DIR__));
+ if (empty($a)) {
+ $a = new App(dirname(__DIR__));
+ }
- @include(".htconfig.php");
- require_once("include/dba.php");
- $db = new dba($db_host, $db_user, $db_pass, $db_data);
+ require_once ".htconfig.php";
+ require_once "include/dba.php";
+ dba::connect($db_host, $db_user, $db_pass, $db_data);
unset($db_host, $db_user, $db_pass, $db_data);
Config::load();
+ // Check the database structure and possibly fixes it
+ check_db(true);
+
// Quit when in maintenance
if (Config::get('system', 'maintenance', true)) {
return;
// We now start the process. This is done after the load check since this could increase the load.
$a->start_process();
- // Kill stale processes every 5 minutes
- $last_cleanup = Config::get('system', 'poller_last_cleaned', 0);
- if (time() > ($last_cleanup + 300)) {
- Config::set('system', 'poller_last_cleaned', time());
- poller_kill_stale_workers();
- }
-
- // Count active workers and compare them with a maximum value that depends on the load
- if (poller_too_much_workers()) {
- logger('Pre check: Active worker limit reached, quitting.', LOGGER_DEBUG);
- return;
- }
-
- // Do we have too few memory?
- if ($a->min_memory_reached()) {
- logger('Pre check: Memory limit reached, quitting.', LOGGER_DEBUG);
- return;
- }
-
- // Possibly there are too much database connections
- if (poller_max_connections_reached()) {
- logger('Pre check: maximum connections reached, quitting.', LOGGER_DEBUG);
- return;
- }
-
- // Possibly there are too much database processes that block the system
- if ($a->max_processes_reached()) {
- logger('Pre check: maximum processes reached, quitting.', LOGGER_DEBUG);
- return;
- }
-
- // Now we start additional cron processes if we should do so
- if (($argc <= 1) || ($argv[1] != "no_cron")) {
- poller_run_cron();
- }
-
- $starttime = time();
-
- // We fetch the next queue entry that is about to be executed
- while ($r = poller_worker_process($passing_slow)) {
-
- // When we are processing jobs with a lower priority, we don't refetch new jobs
- // Otherwise fast jobs could wait behind slow ones and could be blocked.
- $refetched = $passing_slow;
-
- foreach ($r AS $entry) {
- // Assure that the priority is an integer value
- $entry['priority'] = (int)$entry['priority'];
-
- // The work will be done
- if (!poller_execute($entry)) {
- logger('Process execution failed, quitting.', LOGGER_DEBUG);
- return;
- }
-
- // If possible we will fetch new jobs for this worker
- if (!$refetched && Lock::set('poller_worker_process', 0)) {
- $stamp = (float)microtime(true);
- $refetched = find_worker_processes($passing_slow);
- $poller_db_duration += (microtime(true) - $stamp);
- Lock::remove('poller_worker_process');
- }
- }
-
- // To avoid the quitting of multiple pollers only one poller at a time will execute the check
- if (Lock::set('poller_worker', 0)) {
- $stamp = (float)microtime(true);
- // Count active workers and compare them with a maximum value that depends on the load
- if (poller_too_much_workers()) {
- logger('Active worker limit reached, quitting.', LOGGER_DEBUG);
- return;
- }
-
- // Check free memory
- if ($a->min_memory_reached()) {
- logger('Memory limit reached, quitting.', LOGGER_DEBUG);
- return;
- }
- Lock::remove('poller_worker');
- $poller_db_duration += (microtime(true) - $stamp);
- }
-
- // Quit the poller once every 5 minutes
- if (time() > ($starttime + 300)) {
- logger('Process lifetime reached, quitting.', LOGGER_DEBUG);
- return;
- }
- }
- logger("Couldn't select a workerqueue entry, quitting.", LOGGER_DEBUG);
-}
-
-/**
- * @brief Returns the number of non executed entries in the worker queue
- *
- * @return integer Number of non executed entries in the worker queue
- */
-function poller_total_entries() {
- $s = q("SELECT COUNT(*) AS `total` FROM `workerqueue` WHERE `executed` <= '%s' AND NOT `done`", dbesc(NULL_DATE));
- if (dbm::is_result($s)) {
- return $s[0]["total"];
- } else {
- return 0;
- }
-}
-
-/**
- * @brief Returns the highest priority in the worker queue that isn't executed
- *
- * @return integer Number of active poller processes
- */
-function poller_highest_priority() {
- $s = q("SELECT `priority` FROM `workerqueue` WHERE `executed` <= '%s' AND NOT `done` ORDER BY `priority` LIMIT 1", dbesc(NULL_DATE));
- if (dbm::is_result($s)) {
- return $s[0]["priority"];
- } else {
- return 0;
- }
-}
-
-/**
- * @brief Returns if a process with the given priority is running
- *
- * @param integer $priority The priority that should be checked
- *
- * @return integer Is there a process running with that priority?
- */
-function poller_process_with_priority_active($priority) {
- $s = q("SELECT `id` FROM `workerqueue` WHERE `priority` <= %d AND `executed` > '%s' AND NOT `done` LIMIT 1",
- intval($priority), dbesc(NULL_DATE));
- return dbm::is_result($s);
-}
-
-/**
- * @brief Execute a worker entry
- *
- * @param array $queue Workerqueue entry
- *
- * @return boolean "true" if further processing should be stopped
- */
-function poller_execute($queue) {
- global $poller_db_duration, $poller_last_update;
-
- $a = get_app();
-
- $mypid = getmypid();
-
- // Quit when in maintenance
- if (Config::get('system', 'maintenance', true)) {
- logger("Maintenance mode - quit process ".$mypid, LOGGER_DEBUG);
- return false;
- }
-
- // Constantly check the number of parallel database processes
- if ($a->max_processes_reached()) {
- logger("Max processes reached for process ".$mypid, LOGGER_DEBUG);
- return false;
- }
-
- // Constantly check the number of available database connections to let the frontend be accessible at any time
- if (poller_max_connections_reached()) {
- logger("Max connection reached for process ".$mypid, LOGGER_DEBUG);
- return false;
- }
-
- $argv = json_decode($queue["parameter"]);
-
- // Check for existance and validity of the include file
- $include = $argv[0];
-
- if (!validate_include($include)) {
- logger("Include file ".$argv[0]." is not valid!");
- dba::delete('workerqueue', array('id' => $queue["id"]));
- return true;
- }
-
- require_once($include);
-
- $funcname = str_replace(".php", "", basename($argv[0]))."_run";
-
- if (function_exists($funcname)) {
-
- // We constantly update the "executed" date every minute to avoid being killed too soon
- if (!isset($poller_last_update)) {
- $poller_last_update = strtotime($queue["executed"]);
- }
-
- $age = (time() - $poller_last_update) / 60;
- $poller_last_update = time();
-
- if ($age > 1) {
- $stamp = (float)microtime(true);
- dba::update('workerqueue', array('executed' => datetime_convert()), array('pid' => $mypid, 'done' => false));
- $poller_db_duration += (microtime(true) - $stamp);
- }
-
- poller_exec_function($queue, $funcname, $argv);
-
- $stamp = (float)microtime(true);
- dba::update('workerqueue', array('done' => true), array('id' => $queue["id"]));
- $poller_db_duration = (microtime(true) - $stamp);
- } else {
- logger("Function ".$funcname." does not exist");
- dba::delete('workerqueue', array('id' => $queue["id"]));
- }
-
- return true;
-}
-
-/**
- * @brief Execute a function from the queue
- *
- * @param array $queue Workerqueue entry
- * @param string $funcname name of the function
- * @param array $argv Array of values to be passed to the function
- */
-function poller_exec_function($queue, $funcname, $argv) {
- global $poller_up_start, $poller_db_duration, $poller_lock_duration;
-
- $a = get_app();
-
- $mypid = getmypid();
-
- $argc = count($argv);
-
- $new_process_id = uniqid("wrk", true);
-
- logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." ".$queue["parameter"]." - Process PID: ".$new_process_id);
-
- $stamp = (float)microtime(true);
-
- // We use the callstack here to analyze the performance of executed worker entries.
- // For this reason the variables have to be initialized.
- if (Config::get("system", "profiler")) {
- $a->performance["start"] = microtime(true);
- $a->performance["database"] = 0;
- $a->performance["database_write"] = 0;
- $a->performance["network"] = 0;
- $a->performance["file"] = 0;
- $a->performance["rendering"] = 0;
- $a->performance["parser"] = 0;
- $a->performance["marktime"] = 0;
- $a->performance["markstart"] = microtime(true);
- $a->callstack = array();
- }
-
- // For better logging create a new process id for every worker call
- // But preserve the old one for the worker
- $old_process_id = $a->process_id;
- $a->process_id = $new_process_id;
- $a->queue = $queue;
-
- $up_duration = number_format(microtime(true) - $poller_up_start, 3);
-
- // Reset global data to avoid interferences
- unset($_SESSION);
-
- $funcname($argv, $argc);
-
- $a->process_id = $old_process_id;
- unset($a->queue);
-
- $duration = number_format(microtime(true) - $stamp, 3);
-
- $poller_up_start = microtime(true);
-
- /* With these values we can analyze how effective the worker is.
- * The database and rest time should be low since this is the unproductive time.
- * The execution time is the productive time.
- * By changing parameters like the maximum number of workers we can check the effectivness.
- */
- logger('DB: '.number_format($poller_db_duration, 2).
- ' - Lock: '.number_format($poller_lock_duration, 2).
- ' - Rest: '.number_format($up_duration - $poller_db_duration - $poller_lock_duration, 2).
- ' - Execution: '.number_format($duration, 2), LOGGER_DEBUG);
- $poller_lock_duration = 0;
-
- if ($duration > 3600) {
- logger("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 1 hour (".round($duration/60, 3).")", LOGGER_DEBUG);
- } elseif ($duration > 600) {
- logger("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 10 minutes (".round($duration/60, 3).")", LOGGER_DEBUG);
- } elseif ($duration > 300) {
- logger("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 5 minutes (".round($duration/60, 3).")", LOGGER_DEBUG);
- } elseif ($duration > 120) {
- logger("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 2 minutes (".round($duration/60, 3).")", LOGGER_DEBUG);
- }
-
- logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - done in ".$duration." seconds. Process PID: ".$new_process_id);
-
- // Write down the performance values into the log
- if (Config::get("system", "profiler")) {
- $duration = microtime(true)-$a->performance["start"];
-
- if (Config::get("rendertime", "callstack")) {
- if (isset($a->callstack["database"])) {
- $o = "\nDatabase Read:\n";
- foreach ($a->callstack["database"] AS $func => $time) {
- $time = round($time, 3);
- if ($time > 0) {
- $o .= $func.": ".$time."\n";
- }
- }
- }
- if (isset($a->callstack["database_write"])) {
- $o .= "\nDatabase Write:\n";
- foreach ($a->callstack["database_write"] AS $func => $time) {
- $time = round($time, 3);
- if ($time > 0) {
- $o .= $func.": ".$time."\n";
- }
- }
- }
- if (isset($a->callstack["network"])) {
- $o .= "\nNetwork:\n";
- foreach ($a->callstack["network"] AS $func => $time) {
- $time = round($time, 3);
- if ($time > 0) {
- $o .= $func.": ".$time."\n";
- }
- }
- }
- } else {
- $o = '';
- }
-
- logger("ID ".$queue["id"].": ".$funcname.": ".sprintf("DB: %s/%s, Net: %s, I/O: %s, Other: %s, Total: %s".$o,
- number_format($a->performance["database"] - $a->performance["database_write"], 2),
- number_format($a->performance["database_write"], 2),
- number_format($a->performance["network"], 2),
- number_format($a->performance["file"], 2),
- number_format($duration - ($a->performance["database"] + $a->performance["network"] + $a->performance["file"]), 2),
- number_format($duration, 2)),
- LOGGER_DEBUG);
- }
-
- $cooldown = Config::get("system", "worker_cooldown", 0);
-
- if ($cooldown > 0) {
- logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - in cooldown for ".$cooldown." seconds");
- sleep($cooldown);
- }
-}
-
-/**
- * @brief Checks if the number of database connections has reached a critical limit.
- *
- * @return bool Are more than 3/4 of the maximum connections used?
- */
-function poller_max_connections_reached() {
-
- // Fetch the max value from the config. This is needed when the system cannot detect the correct value by itself.
- $max = Config::get("system", "max_connections");
-
- // Fetch the percentage level where the poller will get active
- $maxlevel = Config::get("system", "max_connections_level", 75);
-
- if ($max == 0) {
- // the maximum number of possible user connections can be a system variable
- $r = q("SHOW VARIABLES WHERE `variable_name` = 'max_user_connections'");
- if (dbm::is_result($r)) {
- $max = $r[0]["Value"];
- }
- // Or it can be granted. This overrides the system variable
- $r = q("SHOW GRANTS");
- if (dbm::is_result($r)) {
- foreach ($r AS $grants) {
- $grant = array_pop($grants);
- if (stristr($grant, "GRANT USAGE ON")) {
- if (preg_match("/WITH MAX_USER_CONNECTIONS (\d*)/", $grant, $match)) {
- $max = $match[1];
- }
- }
- }
- }
- }
-
- // If $max is set we will use the processlist to determine the current number of connections
- // The processlist only shows entries of the current user
- if ($max != 0) {
- $r = q("SHOW PROCESSLIST");
- if (!dbm::is_result($r)) {
- return false;
- }
- $used = count($r);
-
- logger("Connection usage (user values): ".$used."/".$max, LOGGER_DEBUG);
-
- $level = ($used / $max) * 100;
-
- if ($level >= $maxlevel) {
- logger("Maximum level (".$maxlevel."%) of user connections reached: ".$used."/".$max);
- return true;
- }
- }
-
- // We will now check for the system values.
- // This limit could be reached although the user limits are fine.
- $r = q("SHOW VARIABLES WHERE `variable_name` = 'max_connections'");
- if (!dbm::is_result($r)) {
- return false;
- }
- $max = intval($r[0]["Value"]);
- if ($max == 0) {
- return false;
- }
- $r = q("SHOW STATUS WHERE `variable_name` = 'Threads_connected'");
- if (!dbm::is_result($r)) {
- return false;
- }
- $used = intval($r[0]["Value"]);
- if ($used == 0) {
- return false;
- }
- logger("Connection usage (system values): ".$used."/".$max, LOGGER_DEBUG);
-
- $level = $used / $max * 100;
-
- if ($level < $maxlevel) {
- return false;
- }
- logger("Maximum level (".$level."%) of system connections reached: ".$used."/".$max);
- return true;
-}
-
-/**
- * @brief fix the queue entry if the worker process died
- *
- */
-function poller_kill_stale_workers() {
- $entries = dba::select('workerqueue', array('id', 'pid', 'executed', 'priority', 'parameter'),
- array('`executed` > ? AND NOT `done` AND `pid` != 0', NULL_DATE),
- array('order' => array('priority', 'created')));
- while ($entry = dba::fetch($entries)) {
- if (!posix_kill($entry["pid"], 0)) {
- dba::update('workerqueue', array('executed' => NULL_DATE, 'pid' => 0),
- array('id' => $entry["id"]));
- } else {
- // Kill long running processes
- // Check if the priority is in a valid range
- if (!in_array($entry["priority"], array(PRIORITY_CRITICAL, PRIORITY_HIGH, PRIORITY_MEDIUM, PRIORITY_LOW, PRIORITY_NEGLIGIBLE))) {
- $entry["priority"] = PRIORITY_MEDIUM;
- }
-
- // Define the maximum durations
- $max_duration_defaults = array(PRIORITY_CRITICAL => 720, PRIORITY_HIGH => 10, PRIORITY_MEDIUM => 60, PRIORITY_LOW => 180, PRIORITY_NEGLIGIBLE => 720);
- $max_duration = $max_duration_defaults[$entry["priority"]];
-
- $argv = json_decode($entry["parameter"]);
- $argv[0] = basename($argv[0]);
-
- // How long is the process already running?
- $duration = (time() - strtotime($entry["executed"])) / 60;
- if ($duration > $max_duration) {
- logger("Worker process ".$entry["pid"]." (".implode(" ", $argv).") took more than ".$max_duration." minutes. It will be killed now.");
- posix_kill($entry["pid"], SIGTERM);
-
- // We killed the stale process.
- // To avoid a blocking situation we reschedule the process at the beginning of the queue.
- // Additionally we are lowering the priority. (But not PRIORITY_CRITICAL)
- if ($entry["priority"] == PRIORITY_HIGH) {
- $new_priority = PRIORITY_MEDIUM;
- } elseif ($entry["priority"] == PRIORITY_MEDIUM) {
- $new_priority = PRIORITY_LOW;
- } elseif ($entry["priority"] != PRIORITY_CRITICAL) {
- $new_priority = PRIORITY_NEGLIGIBLE;
- }
- dba::update('workerqueue',
- array('executed' => NULL_DATE, 'created' => datetime_convert(), 'priority' => $new_priority, 'pid' => 0),
- array('id' => $entry["id"]));
- } else {
- logger("Worker process ".$entry["pid"]." (".implode(" ", $argv).") now runs for ".round($duration)." of ".$max_duration." allowed minutes. That's okay.", LOGGER_DEBUG);
- }
- }
- }
-}
-
-/**
- * @brief Checks if the number of active workers exceeds the given limits
- *
- * @return bool Are there too much workers running?
- */
-function poller_too_much_workers() {
- $queues = Config::get("system", "worker_queues", 4);
-
- $maxqueues = $queues;
-
- $active = poller_active_workers();
-
- // Decrease the number of workers at higher load
- $load = current_load();
- if ($load) {
- $maxsysload = intval(Config::get("system", "maxloadavg", 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));
-
- if (Config::get('system', 'worker_debug')) {
- // Create a list of queue entries grouped by their priority
- $listitem = array();
-
- // Adding all processes with no workerqueue entry
- $processes = dba::p("SELECT COUNT(*) AS `running` FROM `process` WHERE NOT EXISTS
- (SELECT id FROM `workerqueue`
- WHERE `workerqueue`.`pid` = `process`.`pid` AND NOT `done` AND `pid` != ?)", getmypid());
- if ($process = dba::fetch($processes)) {
- $listitem[0] = "0:".$process["running"];
- }
- dba::close($processes);
-
- // Now adding all processes with workerqueue entries
- $entries = dba::p("SELECT COUNT(*) AS `entries`, `priority` FROM `workerqueue` WHERE NOT `done` GROUP BY `priority`");
- while ($entry = dba::fetch($entries)) {
- $processes = dba::p("SELECT COUNT(*) AS `running` FROM `process` INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid` AND NOT `done` WHERE `priority` = ?", $entry["priority"]);
- if ($process = dba::fetch($processes)) {
- $listitem[$entry["priority"]] = $entry["priority"].":".$process["running"]."/".$entry["entries"];
- }
- dba::close($processes);
- }
- dba::close($entries);
-
- $intervals = array(1, 10, 60);
- $jobs_per_minute = array();
- foreach ($intervals AS $interval) {
- $jobs = dba::p("SELECT COUNT(*) AS `jobs` FROM `workerqueue` WHERE `done` AND `executed` > UTC_TIMESTAMP() - INTERVAL ".intval($interval)." MINUTE");
- if ($job = dba::fetch($jobs)) {
- $jobs_per_minute[$interval] = number_format($job['jobs'] / $interval, 0);
- }
- dba::close($jobs);
- }
- $processlist = ' - jpm: '.implode('/', $jobs_per_minute).' ('.implode(', ', $listitem).')';
- }
-
- $entries = poller_total_entries();
-
- if (Config::get("system", "worker_fastlane", false) && ($queues > 0) && ($entries > 0) && ($active >= $queues)) {
- $top_priority = poller_highest_priority();
- $high_running = poller_process_with_priority_active($top_priority);
-
- if (!$high_running && ($top_priority > PRIORITY_UNDEFINED) && ($top_priority < PRIORITY_NEGLIGIBLE)) {
- logger("There are jobs with priority ".$top_priority." waiting but none is executed. Open a fastlane.", LOGGER_DEBUG);
- $queues = $active + 1;
- }
- }
-
- logger("Load: ".$load."/".$maxsysload." - processes: ".$active."/".$entries.$processlist." - maximum: ".$queues."/".$maxqueues, LOGGER_DEBUG);
-
- // Are there fewer workers running as possible? Then fork a new one.
- if (!Config::get("system", "worker_dont_fork") && ($queues > ($active + 1)) && ($entries > 1)) {
- logger("Active workers: ".$active."/".$queues." Fork a new worker.", LOGGER_DEBUG);
- $args = array("include/poller.php", "no_cron");
- get_app()->proc_run($args);
- }
- }
-
- return $active >= $queues;
-}
-
-/**
- * @brief Returns the number of active poller processes
- *
- * @return integer Number of active poller processes
- */
-function poller_active_workers() {
- $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'poller.php'");
-
- return $workers[0]["processes"];
-}
-
-/**
- * @brief Check if we should pass some slow processes
- *
- * When the active processes of the highest priority are using more than 2/3
- * of all processes, we let pass slower processes.
- *
- * @param string $highest_priority Returns the currently highest priority
- * @return bool We let pass a slower process than $highest_priority
- */
-function poller_passing_slow(&$highest_priority) {
-
- $highest_priority = 0;
-
- $r = q("SELECT `priority`
- FROM `process`
- INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid` AND NOT `done`");
-
- // No active processes at all? Fine
- if (!dbm::is_result($r)) {
- return false;
- }
- $priorities = array();
- foreach ($r AS $line) {
- $priorities[] = $line["priority"];
- }
- // Should not happen
- if (count($priorities) == 0) {
- return false;
- }
- $highest_priority = min($priorities);
-
- // The highest process is already the slowest one?
- // Then we quit
- if ($highest_priority == PRIORITY_NEGLIGIBLE) {
- return false;
- }
- $high = 0;
- foreach ($priorities AS $priority) {
- if ($priority == $highest_priority) {
- ++$high;
- }
- }
- logger("Highest priority: ".$highest_priority." Total processes: ".count($priorities)." Count high priority processes: ".$high, LOGGER_DEBUG);
- $passing_slow = (($high/count($priorities)) > (2/3));
-
- if ($passing_slow) {
- logger("Passing slower processes than priority ".$highest_priority, LOGGER_DEBUG);
- }
- return $passing_slow;
-}
-
-/**
- * @brief Find and claim the next worker process for us
- *
- * @param boolean $passing_slow Returns if we had passed low priority processes
- * @return boolean Have we found something?
- */
-function find_worker_processes(&$passing_slow) {
-
- $mypid = getmypid();
-
- // Check if we should pass some low priority process
- $highest_priority = 0;
- $found = false;
- $passing_slow = false;
-
- // The higher the number of parallel workers, the more we prefetch to prevent concurring access
- // We decrease the limit with the number of entries left in the queue
- $worker_queues = Config::get("system", "worker_queues", 4);
- $queue_length = Config::get('system', 'worker_fetch_limit', 1);
- $lower_job_limit = $worker_queues * $queue_length * 2;
- $jobs = poller_total_entries();
-
- // Now do some magic
- $exponent = 2;
- $slope = $queue_length / pow($lower_job_limit, $exponent);
- $limit = min($queue_length, ceil($slope * pow($jobs, $exponent)));
-
- logger('Total: '.$jobs.' - Maximum: '.$queue_length.' - jobs per queue: '.$limit, LOGGER_DEBUG);
-
- if (poller_passing_slow($highest_priority)) {
- // Are there waiting processes with a higher priority than the currently highest?
- $result = dba::select('workerqueue', array('id'), array("`executed` <= ? AND `priority` < ? AND NOT `done`", NULL_DATE, $highest_priority),
- array('limit' => $limit, 'order' => array('priority', 'created'), 'only_query' => true));
-
- while ($id = dba::fetch($result)) {
- $ids[] = $id["id"];
- }
- dba::close($result);
-
- $found = (count($ids) > 0);
-
- if (!$found) {
- // Give slower processes some processing time
- $result = dba::select('workerqueue', array('id'), array("`executed` <= ? AND `priority` > ? AND NOT `done`", NULL_DATE, $highest_priority),
- array('limit' => $limit, 'order' => array('priority', 'created'), 'only_query' => true));
-
- while ($id = dba::fetch($result)) {
- $ids[] = $id["id"];
- }
- dba::close($result);
-
- $found = (count($ids) > 0);
- $passing_slow = $found;
- }
- }
-
- // If there is no result (or we shouldn't pass lower processes) we check without priority limit
- if (!$found) {
- $result = dba::select('workerqueue', array('id'), array("`executed` <= ? AND NOT `done`", NULL_DATE),
- array('limit' => $limit, 'order' => array('priority', 'created'), 'only_query' => true));
-
- while ($id = dba::fetch($result)) {
- $ids[] = $id["id"];
- }
- dba::close($result);
-
- $found = (count($ids) > 0);
- }
-
- if ($found) {
- $condition = "`id` IN (".substr(str_repeat("?, ", count($ids)), 0, -2).") AND `pid` = 0 AND NOT `done`";
- array_unshift($ids, $condition);
- dba::update('workerqueue', array('executed' => datetime_convert(), 'pid' => $mypid), $ids);
- }
-
- return $found;
-}
-
-/**
- * @brief Returns the next worker process
- *
- * @param boolean $passing_slow Returns if we had passed low priority processes
- * @return string SQL statement
- */
-function poller_worker_process(&$passing_slow) {
- global $poller_db_duration, $poller_lock_duration;
-
- $stamp = (float)microtime(true);
-
- // There can already be jobs for us in the queue.
- $r = q("SELECT * FROM `workerqueue` WHERE `pid` = %d AND NOT `done`", intval(getmypid()));
- if (dbm::is_result($r)) {
- $poller_db_duration += (microtime(true) - $stamp);
- return $r;
- }
-
- $stamp = (float)microtime(true);
- if (!Lock::set('poller_worker_process')) {
- return false;
- }
- $poller_lock_duration = (microtime(true) - $stamp);
-
- $stamp = (float)microtime(true);
- $found = find_worker_processes($passing_slow);
- $poller_db_duration += (microtime(true) - $stamp);
-
- Lock::remove('poller_worker_process');
-
- if ($found) {
- $r = q("SELECT * FROM `workerqueue` WHERE `pid` = %d AND NOT `done`", intval(getmypid()));
- }
- return $r;
-}
-
-/**
- * @brief Removes a workerqueue entry from the current process
- */
-function poller_unclaim_process() {
- $mypid = getmypid();
-
- dba::update('workerqueue', array('executed' => NULL_DATE, 'pid' => 0), array('pid' => $mypid, 'done' => false));
-}
-
-/**
- * @brief Call the front end worker
- */
-function call_worker() {
- if (!Config::get("system", "frontend_worker")) {
- return;
- }
-
- $url = System::baseUrl()."/worker";
- fetch_url($url, false, $redirects, 1);
-}
-
-/**
- * @brief Call the front end worker if there aren't any active
- */
-function call_worker_if_idle() {
- if (!Config::get("system", "frontend_worker")) {
- return;
- }
-
- // Do we have "proc_open"? Then we can fork the poller
- if (function_exists("proc_open")) {
- // When was the last time that we called the worker?
- // Less than one minute? Then we quit
- if ((time() - Config::get("system", "worker_started")) < 60) {
- return;
- }
-
- set_config("system", "worker_started", time());
-
- // Do we have enough running workers? Then we quit here.
- if (poller_too_much_workers()) {
- // Cleaning dead processes
- poller_kill_stale_workers();
- get_app()->remove_inactive_processes();
-
- return;
- }
-
- poller_run_cron();
-
- logger('Call poller', LOGGER_DEBUG);
-
- $args = array("include/poller.php", "no_cron");
- get_app()->proc_run($args);
- return;
- }
-
- // We cannot execute background processes.
- // We now run the processes from the frontend.
- // This won't work with long running processes.
- poller_run_cron();
-
- clear_worker_processes();
-
- $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
-
- if ($workers[0]["processes"] == 0) {
- call_worker();
- }
-}
-
-/**
- * @brief Removes long running worker processes
- */
-function clear_worker_processes() {
- $timeout = Config::get("system", "frontend_worker_timeout", 10);
-
- /// @todo We should clean up the corresponding workerqueue entries as well
- q("DELETE FROM `process` WHERE `created` < '%s' AND `command` = 'worker.php'",
- dbesc(datetime_convert('UTC','UTC',"now - ".$timeout." minutes")));
-}
-
-/**
- * @brief Runs the cron processes
- */
-function poller_run_cron() {
- logger('Add cron entries', LOGGER_DEBUG);
-
- // Check for spooled items
- proc_run(PRIORITY_HIGH, "include/spool_post.php");
-
- // Run the cron job that calls all other jobs
- proc_run(PRIORITY_MEDIUM, "include/cron.php");
-
- // Run the cronhooks job separately from cron for being able to use a different timing
- proc_run(PRIORITY_MEDIUM, "include/cronhooks.php");
+ $run_cron = (($argc <= 1) || ($argv[1] != "no_cron"));
- // Cleaning dead processes
- poller_kill_stale_workers();
+ Worker::processQueue($run_cron);
+ return;
}
-if (array_search(__file__,get_included_files())===0){
- poller_run($_SERVER["argv"],$_SERVER["argc"]);
+if (array_search(__file__, get_included_files()) === 0) {
+ poller_run($_SERVER["argv"], $_SERVER["argc"]);
- poller_unclaim_process();
+ Worker::unclaimProcess();
get_app()->end_process();
projects / friendica.git / blobdiff