X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=src%2FCore%2FWorker.php;h=c64b0ebc6bdaa681e631e46e25dddb8526aa5bf2;hb=cbe435bb708ccf17a4b5bea1e20c3258c9524700;hp=3f55aede33d9dd0734f37887d819c3813e427139;hpb=2d91d5c3d903d84832a0b8dc2abdc8471649bde7;p=friendica.git diff --git a/src/Core/Worker.php b/src/Core/Worker.php index 3f55aede33..c64b0ebc6b 100644 --- a/src/Core/Worker.php +++ b/src/Core/Worker.php @@ -5,6 +5,7 @@ namespace Friendica\Core; use Friendica\BaseObject; +use Friendica\Core; use Friendica\Database\DBA; use Friendica\Model\Process; use Friendica\Util\DateTimeFormat; @@ -21,6 +22,14 @@ use Friendica\Util\Network; */ class Worker { + const STATE_STARTUP = 1; // Worker is in startup. This takes most time. + const STATE_LONG_LOOP = 2; // Worker is processing the whole - long - loop. + const STATE_REFETCH = 3; // Worker had refetched jobs in the execution loop. + const STATE_SHORT_LOOP = 4; // Worker is processing preassigned jobs, thus saving much time. + + const FAST_COMMANDS = ['APDelivery', 'Delivery', 'CreateShadowEntry']; + + private static $up_start; private static $db_duration = 0; private static $db_duration_count = 0; @@ -28,6 +37,7 @@ class Worker private static $db_duration_stat = 0; private static $lock_duration = 0; private static $last_update; + private static $state; /** * @brief Processes the tasks that are in the workerqueue table @@ -91,9 +101,11 @@ class Worker } $starttime = time(); + self::$state = self::STATE_STARTUP; // We fetch the next queue entry that is about to be executed while ($r = self::workerProcess()) { + $refetched = false; foreach ($r as $entry) { // Assure that the priority is an integer value $entry['priority'] = (int)$entry['priority']; @@ -104,34 +116,43 @@ class Worker return; } - // If possible we will fetch new jobs for this worker - if (!self::getWaitingJobForPID() && Lock::acquire('worker_process', 0)) { + // Trying to fetch new processes - but only once when successful + if (!$refetched && Lock::acquire('worker_process', 0)) { self::findWorkerProcesses(); Lock::release('worker_process'); + self::$state = self::STATE_REFETCH; + $refetched = true; + } else { + self::$state = self::STATE_SHORT_LOOP; } } // To avoid the quitting of multiple workers only one worker at a time will execute the check - if (Lock::acquire('worker', 0)) { + if (!self::getWaitingJobForPID()) { + self::$state = self::STATE_LONG_LOOP; + + if (Lock::acquire('worker', 0)) { // Count active workers and compare them with a maximum value that depends on the load - if (self::tooMuchWorkers()) { - Logger::log('Active worker limit reached, quitting.', Logger::DEBUG); - Lock::release('worker'); - return; - } + if (self::tooMuchWorkers()) { + Logger::log('Active worker limit reached, quitting.', Logger::DEBUG); + Lock::release('worker'); + return; + } - // Check free memory - if ($a->isMinMemoryReached()) { - Logger::log('Memory limit reached, quitting.', Logger::DEBUG); + // Check free memory + if ($a->isMinMemoryReached()) { + Logger::log('Memory limit reached, quitting.', Logger::DEBUG); + Lock::release('worker'); + return; + } Lock::release('worker'); - return; } - Lock::release('worker'); } - // Quit the worker once every 5 minutes - if (time() > ($starttime + 300)) { - Logger::log('Process lifetime reached, quitting.', Logger::DEBUG); + // Quit the worker once every cron interval + if (time() > ($starttime + (Config::get('system', 'cron_interval') * 60))) { + Logger::info('Process lifetime reached, respawning.'); + self::spawnWorker(); return; } } @@ -166,7 +187,7 @@ class Worker private static function deferredEntries() { $stamp = (float)microtime(true); - $count = DBA::count('workerqueue', ["NOT `done` AND `pid` = 0 AND `next_try` > ?", DateTimeFormat::utcNow()]); + $count = DBA::count('workerqueue', ["NOT `done` AND `pid` = 0 AND `retrial` > ?", 0]); self::$db_duration += (microtime(true) - $stamp); self::$db_duration_count += (microtime(true) - $stamp); return $count; @@ -355,15 +376,11 @@ class Worker { $a = \get_app(); - $mypid = getmypid(); - $argc = count($argv); - // Currently deactivated, since the new logger doesn't support this - //$new_process_id = System::processID("wrk"); - $new_process_id = ''; + Logger::enableWorker($funcname); - Logger::log("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." ".$queue["parameter"]." - Process PID: ".$new_process_id); + Logger::info("Process start.", ['priority' => $queue["priority"], 'id' => $queue["id"]]); $stamp = (float)microtime(true); @@ -371,10 +388,6 @@ class Worker // For this reason the variables have to be initialized. $a->getProfiler()->reset(); - // 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; $up_duration = microtime(true) - self::$up_start; @@ -382,13 +395,15 @@ class Worker // Reset global data to avoid interferences unset($_SESSION); + // Set the workerLogger as new default logger if ($method_call) { call_user_func_array(sprintf('Friendica\Worker\%s::execute', $funcname), $argv); } else { $funcname($argv, $argc); } - $a->process_id = $old_process_id; + Logger::disableWorker(); + unset($a->queue); $duration = (microtime(true) - $stamp); @@ -398,15 +413,16 @@ class Worker * The execution time is the productive time. * By changing parameters like the maximum number of workers we can check the effectivness. */ - $dbtotal = number_format(self::$db_duration - (self::$db_duration_count + self::$db_duration_write + self::$db_duration_stat), 4); - $dbcount = number_format(self::$db_duration_count, 4); - $dbstat = number_format(self::$db_duration_stat, 4); - $dbwrite = number_format(self::$db_duration_write, 4); - $dblock = number_format(self::$lock_duration, 4); - $rest = number_format(max(0, $up_duration - (self::$db_duration + self::$lock_duration)), 4); - $exec = number_format($duration, 4); + $dbtotal = round(self::$db_duration, 2); + $dbread = round(self::$db_duration - (self::$db_duration_count + self::$db_duration_write + self::$db_duration_stat), 2); + $dbcount = round(self::$db_duration_count, 2); + $dbstat = round(self::$db_duration_stat, 2); + $dbwrite = round(self::$db_duration_write, 2); + $dblock = round(self::$lock_duration, 2); + $rest = round(max(0, $up_duration - (self::$db_duration + self::$lock_duration)), 2); + $exec = round($duration, 2); - Logger::info('Performance:', ['total' => $dbtotal, 'count' => $dbcount, 'stat' => $dbstat, 'write' => $dbwrite, 'block' => $dblock, 'rest' => $rest, 'exec' => $exec]); + Logger::info('Performance:', ['state' => self::$state, 'count' => $dbcount, 'stat' => $dbstat, 'write' => $dbwrite, 'lock' => $dblock, 'total' => $dbtotal, 'rest' => $rest, 'exec' => $exec]); self::$up_start = microtime(true); self::$db_duration = 0; @@ -416,23 +432,23 @@ class Worker self::$lock_duration = 0; if ($duration > 3600) { - Logger::log("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 1 hour (".round($duration/60, 3).")", Logger::DEBUG); + Logger::info('Longer than 1 hour.', ['priority' => $queue["priority"], 'id' => $queue["id"], 'duration' => round($duration/60, 3)]); } elseif ($duration > 600) { - Logger::log("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 10 minutes (".round($duration/60, 3).")", Logger::DEBUG); + Logger::info('Longer than 10 minutes.', ['priority' => $queue["priority"], 'id' => $queue["id"], 'duration' => round($duration/60, 3)]); } elseif ($duration > 300) { - Logger::log("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 5 minutes (".round($duration/60, 3).")", Logger::DEBUG); + Logger::info('Longer than 5 minutes.', ['priority' => $queue["priority"], 'id' => $queue["id"], 'duration' => round($duration/60, 3)]); } elseif ($duration > 120) { - Logger::log("Prio ".$queue["priority"].": ".$queue["parameter"]." - longer than 2 minutes (".round($duration/60, 3).")", Logger::DEBUG); + Logger::info('Longer than 2 minutes.', ['priority' => $queue["priority"], 'id' => $queue["id"], 'duration' => round($duration/60, 3)]); } - Logger::log("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - done in ".number_format($duration, 4)." seconds. Process PID: ".$new_process_id); + Logger::info('Process done.', ['priority' => $queue["priority"], 'id' => $queue["id"], 'duration' => round($duration, 3)]); $a->getProfiler()->saveLog($a->getLogger(), "ID " . $queue["id"] . ": " . $funcname); $cooldown = Config::get("system", "worker_cooldown", 0); if ($cooldown > 0) { - Logger::log("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - in cooldown for ".$cooldown." seconds"); + Logger::info('Cooldown.', ['priority' => $queue["priority"], 'id' => $queue["id"], 'cooldown' => $cooldown]); sleep($cooldown); } } @@ -600,7 +616,7 @@ class Worker */ private static function tooMuchWorkers() { - $queues = Config::get("system", "worker_queues", 4); + $queues = Config::get("system", "worker_queues", 10); $maxqueues = $queues; @@ -609,7 +625,7 @@ class Worker // Decrease the number of workers at higher load $load = System::currentLoad(); if ($load) { - $maxsysload = intval(Config::get("system", "maxloadavg", 50)); + $maxsysload = intval(Config::get("system", "maxloadavg", 20)); /* Default exponent 3 causes queues to rapidly decrease as load increases. * If you have 20 max queues at idle, then you get only 5 queues at 37.1% of $maxsysload. @@ -655,7 +671,7 @@ class Worker $waiting_processes = 0; // Now adding all processes with workerqueue entries $stamp = (float)microtime(true); - $jobs = DBA::p("SELECT COUNT(*) AS `entries`, `priority` FROM `workerqueue` WHERE NOT `done` AND `next_try` < ? GROUP BY `priority`", DateTimeFormat::utcNow()); + $jobs = DBA::p("SELECT COUNT(*) AS `entries`, `priority` FROM `workerqueue` WHERE NOT `done` GROUP BY `priority`"); self::$db_duration += (microtime(true) - $stamp); self::$db_duration_stat += (microtime(true) - $stamp); while ($entry = DBA::fetch($jobs)) { @@ -671,10 +687,8 @@ class Worker DBA::close($processes); } DBA::close($jobs); - $entries = $deferred + $waiting_processes; } else { - $entries = self::totalEntries(); - $waiting_processes = max(0, $entries - $deferred); + $waiting_processes = self::totalEntries(); $stamp = (float)microtime(true); $jobs = DBA::p("SELECT COUNT(*) AS `running`, `priority` FROM `process` INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid` AND NOT `done` GROUP BY `priority` ORDER BY `priority`"); self::$db_duration += (microtime(true) - $stamp); @@ -687,11 +701,13 @@ class Worker DBA::close($jobs); } + $waiting_processes -= $deferred; + $listitem[0] = "0:" . max(0, $idle_workers); $processlist .= ' ('.implode(', ', $listitem).')'; - if (Config::get("system", "worker_fastlane", false) && ($queues > 0) && self::entriesExists() && ($active >= $queues)) { + if (Config::get("system", "worker_fastlane", false) && ($queues > 0) && ($active >= $queues) && self::entriesExists()) { $top_priority = self::highestPriority(); $high_running = self::processWithPriorityActive($top_priority); @@ -704,7 +720,7 @@ class Worker Logger::log("Load: " . $load ."/" . $maxsysload . " - processes: " . $deferred . "/" . $active . "/" . $waiting_processes . $processlist . " - maximum: " . $queues . "/" . $maxqueues, Logger::DEBUG); // Are there fewer workers running as possible? Then fork a new one. - if (!Config::get("system", "worker_dont_fork", false) && ($queues > ($active + 1)) && ($entries > 1)) { + if (!Config::get("system", "worker_dont_fork", false) && ($queues > ($active + 1)) && self::entriesExists()) { Logger::log("Active workers: ".$active."/".$queues." Fork a new worker.", Logger::DEBUG); if (Config::get('system', 'worker_daemon_mode', false)) { self::IPCSetJobState(true); @@ -769,23 +785,24 @@ class Worker return []; } - if ($priority <= PRIORITY_MEDIUM) { - $limit = Config::get('system', 'worker_fetch_limit', 1); - } else { - $limit = 1; - } + $limit = Config::get('system', 'worker_fetch_limit', 1); $ids = []; $stamp = (float)microtime(true); $condition = ["`priority` = ? AND `pid` = 0 AND NOT `done` AND `next_try` < ?", $priority, DateTimeFormat::utcNow()]; - $tasks = DBA::select('workerqueue', ['id'], $condition, ['limit' => $limit, 'order' => ['created']]); + $tasks = DBA::select('workerqueue', ['id', 'parameter'], $condition, ['limit' => $limit, 'order' => ['created']]); self::$db_duration += (microtime(true) - $stamp); while ($task = DBA::fetch($tasks)) { $ids[] = $task['id']; + // Only continue that loop while we are storing commands that can be processed quickly + $command = json_decode($task['parameter'])[0]; + if (!in_array($command, self::FAST_COMMANDS)) { + break; + } } DBA::close($tasks); - Logger::info('Found:', ['id' => $ids, 'priority' => $priority]); + Logger::info('Found:', ['priority' => $priority, 'id' => $ids]); return $ids; } @@ -854,7 +871,7 @@ class Worker } if (!empty($waiting)) { - $priority = array_shift(array_keys($waiting)); + $priority = array_keys($waiting)[0]; Logger::info('No underassigned priority found, now taking the highest priority.', ['priority' => $priority]); return $priority; } @@ -876,15 +893,22 @@ class Worker // If there is no result we check without priority limit if (empty($ids)) { + $limit = Config::get('system', 'worker_fetch_limit', 1); + $stamp = (float)microtime(true); $condition = ["`pid` = 0 AND NOT `done` AND `next_try` < ?", DateTimeFormat::utcNow()]; - $result = DBA::select('workerqueue', ['id'], $condition, ['limit' => 1, 'order' => ['priority', 'created']]); + $tasks = DBA::select('workerqueue', ['id', 'parameter'], $condition, ['limit' => $limit, 'order' => ['priority', 'created']]); self::$db_duration += (microtime(true) - $stamp); - while ($id = DBA::fetch($result)) { - $ids[] = $id["id"]; + while ($task = DBA::fetch($tasks)) { + $ids[] = $task['id']; + // Only continue that loop while we are storing commands that can be processed quickly + $command = json_decode($task['parameter'])[0]; + if (!in_array($command, self::FAST_COMMANDS)) { + break; + } } - DBA::close($result); + DBA::close($tasks); } if (!empty($ids)) { @@ -958,7 +982,7 @@ class Worker } $url = System::baseUrl()."/worker"; - Network::fetchUrl($url, false, $redirects, 1); + Network::fetchUrl($url, false, 1); } /** @@ -1061,7 +1085,9 @@ class Worker $args = ['no_cron' => !$do_cron]; - get_app()->proc_run($command, $args); + $a = get_app(); + $process = new Core\Process($a->getLogger(), $a->getMode(), $a->getConfig(), $a->getBasePath()); + $process->run($command, $args); // after spawning we have to remove the flag. if (Config::get('system', 'worker_daemon_mode', false)) { @@ -1075,10 +1101,10 @@ class Worker * @param (integer|array) priority or parameter array, strings are deprecated and are ignored * * next args are passed as $cmd command line - * or: Worker::add(PRIORITY_HIGH, "Notifier", "drop", $drop_id); + * or: Worker::add(PRIORITY_HIGH, "Notifier", Delivery::DELETION, $drop_id); * or: Worker::add(array('priority' => PRIORITY_HIGH, 'dont_fork' => true), "CreateShadowEntry", $post_id); * - * @return boolean "false" if proc_run couldn't be executed + * @return boolean "false" if worker queue entry already existed or there had been an error * @throws \Friendica\Network\HTTPException\InternalServerErrorException * @note $cmd and string args are surrounded with "" * @@ -1102,7 +1128,8 @@ class Worker } $priority = PRIORITY_MEDIUM; - $dont_fork = Config::get("system", "worker_dont_fork", false); + // Don't fork from frontend tasks by default + $dont_fork = Config::get("system", "worker_dont_fork", false) || !\get_app()->getMode()->isBackend(); $created = DateTimeFormat::utcNow(); $force_priority = false; @@ -1127,6 +1154,7 @@ class Worker $parameters = json_encode($args); $found = DBA::exists('workerqueue', ['parameter' => $parameters, 'done' => false]); + $added = false; // Quit if there was a database error - a precaution for the update process to 3.5.3 if (DBA::errorNo() != 0) { @@ -1134,19 +1162,22 @@ class Worker } if (!$found) { - DBA::insert('workerqueue', ['parameter' => $parameters, 'created' => $created, 'priority' => $priority]); + $added = DBA::insert('workerqueue', ['parameter' => $parameters, 'created' => $created, 'priority' => $priority]); + if (!$added) { + return false; + } } elseif ($force_priority) { DBA::update('workerqueue', ['priority' => $priority], ['parameter' => $parameters, 'done' => false, 'pid' => 0]); } // Should we quit and wait for the worker to be called as a cronjob? if ($dont_fork) { - return true; + return $added; } // If there is a lock then we don't have to check for too much worker if (!Lock::acquire('worker', 0)) { - return true; + return $added; } // If there are already enough workers running, don't fork another one @@ -1154,28 +1185,55 @@ class Worker Lock::release('worker'); if ($quit) { - return true; + return $added; } // We tell the daemon that a new job entry exists if (Config::get('system', 'worker_daemon_mode', false)) { // We don't have to set the IPC flag - this is done in "tooMuchWorkers" - return true; + return $added; } // Now call the worker to execute the jobs that we just added to the queue self::spawnWorker(); - return true; + return $added; + } + + /** + * Returns the next retrial level for worker jobs. + * This function will skip levels when jobs are older. + * + * @param array $queue Worker queue entry + * @param integer $max_level maximum retrial level + * @return integer the next retrial level value + */ + private static function getNextRetrial($queue, $max_level) + { + $created = strtotime($queue['created']); + $retrial_time = time() - $created; + + $new_retrial = $queue['retrial'] + 1; + $total = 0; + for ($retrial = 0; $retrial <= $max_level + 1; ++$retrial) { + $delay = (($retrial + 3) ** 4) + (rand(1, 30) * ($retrial + 1)); + $total += $delay; + if (($total < $retrial_time) && ($retrial > $queue['retrial'])) { + $new_retrial = $retrial; + } + } + Logger::info('New retrial for task', ['id' => $queue['id'], 'created' => $queue['created'], 'old' => $queue['retrial'], 'new' => $new_retrial]); + return $new_retrial; } /** * Defers the current worker entry + * @return boolean had the entry been deferred? */ public static function defer() { if (empty(BaseObject::getApp()->queue)) { - return; + return false; } $queue = BaseObject::getApp()->queue; @@ -1184,30 +1242,36 @@ class Worker $id = $queue['id']; $priority = $queue['priority']; - if ($retrial > 14) { - Logger::log('Id ' . $id . ' had been tried 14 times. We stop now.', Logger::DEBUG); - return; + $max_level = Config::get('system', 'worker_defer_limit'); + + $new_retrial = self::getNextRetrial($queue, $max_level); + + if ($new_retrial > $max_level) { + Logger::info('The task exceeded the maximum retry count', ['id' => $id, 'created' => $queue['created'], 'old_prio' => $queue['priority'], 'old_retrial' => $queue['retrial'], 'max_level' => $max_level, 'retrial' => $new_retrial]); + return false; } // Calculate the delay until the next trial - $delay = (($retrial + 3) ** 4) + (rand(1, 30) * ($retrial + 1)); + $delay = (($new_retrial + 2) ** 4) + (rand(1, 30) * ($new_retrial)); $next = DateTimeFormat::utc('now + ' . $delay . ' seconds'); - if (($priority < PRIORITY_MEDIUM) && ($retrial > 2)) { + if (($priority < PRIORITY_MEDIUM) && ($new_retrial > 3)) { $priority = PRIORITY_MEDIUM; - } elseif (($priority < PRIORITY_LOW) && ($retrial > 5)) { + } elseif (($priority < PRIORITY_LOW) && ($new_retrial > 6)) { $priority = PRIORITY_LOW; - } elseif (($priority < PRIORITY_NEGLIGIBLE) && ($retrial > 7)) { + } elseif (($priority < PRIORITY_NEGLIGIBLE) && ($new_retrial > 8)) { $priority = PRIORITY_NEGLIGIBLE; } - Logger::log('Defer execution ' . $retrial . ' of id ' . $id . ' to ' . $next . ' - priority old/new: ' . $queue['priority'] . '/' . $priority, Logger::DEBUG); + Logger::info('Deferred task', ['id' => $id, 'retrial' => $new_retrial, 'created' => $queue['created'], 'next_execution' => $next, 'old_prio' => $queue['priority'], 'new_prio' => $priority]); $stamp = (float)microtime(true); - $fields = ['retrial' => $retrial + 1, 'next_try' => $next, 'executed' => DBA::NULL_DATETIME, 'pid' => 0, 'priority' => $priority]; + $fields = ['retrial' => $new_retrial, 'next_try' => $next, 'executed' => DBA::NULL_DATETIME, 'pid' => 0, 'priority' => $priority]; DBA::update('workerqueue', $fields, ['id' => $id]); self::$db_duration += (microtime(true) - $stamp); self::$db_duration_write += (microtime(true) - $stamp); + + return true; } /**