friendica/src/Core/Worker/Cron.php

205 lines
6.9 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2010-2022, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Core\Worker;
use Friendica\Core\Logger;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Model\Post;
use Friendica\Protocol\ActivityPub;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Strings;
/**
* Contains the class for jobs that are executed in an interval
*/
class Cron
{
/**
* Runs the cron processes
*
* @return void
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function run()
{
Logger::info('Add cron entries');
// Check for spooled items
Worker::add(['priority' => PRIORITY_HIGH, 'force_priority' => true], 'SpoolPost');
// Run the cron job that calls all other jobs
Worker::add(['priority' => PRIORITY_MEDIUM, 'force_priority' => true], 'Cron');
// Cleaning dead processes
self::killStaleWorkers();
// Remove old entries from the workerqueue
self::cleanWorkerQueue();
// Directly deliver or requeue posts
self::deliverPosts();
}
/**
* fix the queue entry if the worker process died
*
* @return void
* @throws \Exception
*/
public static function killStaleWorkers()
{
$entries = DBA::select(
'workerqueue',
['id', 'pid', 'executed', 'priority', 'command', 'parameter'],
['NOT `done` AND `pid` != 0'],
['order' => ['priority', 'retrial', 'created']]
);
while ($entry = DBA::fetch($entries)) {
if (!posix_kill($entry["pid"], 0)) {
DBA::update('workerqueue', ['executed' => DBA::NULL_DATETIME, 'pid' => 0], ['id' => $entry["id"]]);
} else {
// Kill long running processes
// Define the maximum durations
$max_duration_defaults = [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'], true);
if (!empty($entry['command'])) {
$command = $entry['command'];
} elseif (!empty($argv)) {
$command = array_shift($argv);
} else {
return;
}
$command = basename($command);
// How long is the process already running?
$duration = (time() - strtotime($entry["executed"])) / 60;
if ($duration > $max_duration) {
Logger::warning('Worker process took too much time - killed', ['duration' => number_format($duration, 3), 'max' => $max_duration, 'id' => $entry["id"], 'pid' => $entry["pid"], 'command' => $command]);
posix_kill($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)
$new_priority = $entry['priority'];
if ($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', ['executed' => DBA::NULL_DATETIME, 'created' => DateTimeFormat::utcNow(), 'priority' => $new_priority, 'pid' => 0], ['id' => $entry["id"]]
);
} else {
Logger::info('Process runtime is okay', ['duration' => number_format($duration, 3), 'max' => $max_duration, 'id' => $entry["id"], 'pid' => $entry["pid"], 'command' => $command]);
}
}
}
DBA::close($entries);
}
/**
* Remove old entries from the workerqueue
*
* @return void
*/
private static function cleanWorkerQueue()
{
DBA::delete('workerqueue', ["`done` AND `executed` < ?", DateTimeFormat::utc('now - 1 hour')]);
// Optimizing this table only last seconds
if (DI::config()->get('system', 'optimize_tables')) {
// We are acquiring the two locks from the worker to avoid locking problems
if (DI::lock()->acquire(Worker::LOCK_PROCESS, 10)) {
if (DI::lock()->acquire(Worker::LOCK_WORKER, 10)) {
DBA::e("OPTIMIZE TABLE `workerqueue`");
DBA::e("OPTIMIZE TABLE `process`");
DI::lock()->release(Worker::LOCK_WORKER);
}
DI::lock()->release(Worker::LOCK_PROCESS);
}
}
}
/**
* Directly deliver AP messages or requeue them.
*
* This function is placed here as a safeguard. Even when the worker queue is completely blocked, messages will be delivered.
*/
private static function deliverPosts()
{
$deliveries = DBA::p("SELECT `item-uri`.`uri` AS `inbox`, MAX(`failed`) AS `failed` FROM `post-delivery` INNER JOIN `item-uri` ON `item-uri`.`id` = `post-delivery`.`inbox-id` GROUP BY `inbox`");
while ($delivery = DBA::fetch($deliveries)) {
if ($delivery['failed'] == 0) {
$result = ActivityPub\Delivery::deliver($delivery['inbox']);
Logger::info('Directly deliver inbox', ['inbox' => $delivery['inbox'], 'result' => $result['success']]);
continue;
} elseif ($delivery['failed'] < 3) {
$priority = PRIORITY_HIGH;
} elseif ($delivery['failed'] < 6) {
$priority = PRIORITY_MEDIUM;
} elseif ($delivery['failed'] < 8) {
$priority = PRIORITY_LOW;
} else {
$priority = PRIORITY_NEGLIGIBLE;
}
if ($delivery['failed'] >= DI::config()->get('system', 'worker_defer_limit')) {
Logger::info('Removing failed deliveries', ['inbox' => $delivery['inbox'], 'failed' => $delivery['failed']]);
Post\Delivery::removeFailed($delivery['inbox']);
}
if (Worker::add($priority, 'APDelivery', '', 0, $delivery['inbox'], 0)) {
Logger::info('Missing APDelivery worker added for inbox', ['inbox' => $delivery['inbox'], 'failed' => $delivery['failed'], 'priority' => $priority]);
}
}
}
/**
* Add missing "intro" records.
*
* @return void
*/
private static function addIntros()
{
$contacts = DBA::p("SELECT `uid`, `id`, `created` FROM `contact` WHERE `rel` = ? AND `pending` AND NOT EXISTS (SELECT `id` FROM `intro` WHERE `contact-id` = `contact`.`id`)", Contact::FOLLOWER);
while ($contact = DBA::fetch($contacts)) {
$fields = [
'uid' => $contact['uid'],
'contact-id' => $contact['id'],
'datetime' => $contact['created'],
'hash' => Strings::getRandomHex()
];
Logger::notice('Adding missing intro', ['fields' => $fields]);
DBA::insert('intro', $fields);
}
}
}