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Merge pull request #11917 from annando/cooldown

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More cooldown calls for worker processes
This commit is contained in:
Hypolite Petovan 2022-09-22 22:39:04 -04:00 committed by GitHub
commit be9bbe1709
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9 changed files with 111 additions and 37 deletions
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19
src/Core/System.php
View file

@ -442,17 +442,24 @@ class System
*/
public static function getLoadAvg(): array
{
$content = file_get_contents('/proc/loadavg');
$content = @file_get_contents('/proc/loadavg');
if (empty($content)) {
$content = shell_exec('cat /proc/loadavg');
}
if (empty($content)) {
return [];
if (empty($content) || !preg_match("#([.\d]+)\s([.\d]+)\s([.\d]+)\s(\d+)/(\d+)#", $content, $matches)) {
$load_arr = sys_getloadavg();
if (empty($load_arr)) {
return [];
}
return [
'average1' => $load_arr[0],
'average5' => $load_arr[1],
'average15' => $load_arr[2],
'runnable' => 0,
'scheduled' => 0
];
}
if (!preg_match("#([.\d]+)\s([.\d]+)\s([.\d]+)\s(\d+)/(\d+)#", $content, $matches)) {
return [];
}
return [
'average1' => (float)$matches[1],
'average5' => (float)$matches[2],

117
src/Core/Worker.php
View file

@ -143,7 +143,7 @@ class Worker
}
// Quit the worker once every cron interval
if (time() > ($starttime + (DI::config()->get('system', 'cron_interval') * 60))) {
if (time() > ($starttime + (DI::config()->get('system', 'cron_interval') * 60)) && !self::systemLimitReached()) {
Logger::info('Process lifetime reached, respawning.');
self::unclaimProcess($process);
if (Worker\Daemon::isMode()) {
@ -444,6 +444,87 @@ class Worker
return true;
}
/**
* Checks if system limits are reached.
*
* @return boolean
*/
private static function systemLimitReached(): bool
{
$load_cooldown = DI::config()->get('system', 'worker_load_cooldown');
$processes_cooldown = DI::config()->get('system', 'worker_processes_cooldown');
if (($load_cooldown == 0) && ($processes_cooldown == 0)) {
return false;
}
$load = System::getLoadAvg();
if (empty($load)) {
return false;
}
if (($load_cooldown > 0) && ($load['average1'] > $load_cooldown)) {
return true;
}
if (($processes_cooldown > 0) && ($load['scheduled'] > $processes_cooldown)) {
return true;
}
return false;
}
/**
* Slow the execution down if the system load is too high
*
* @return void
*/
public static function coolDown()
{
$cooldown = DI::config()->get('system', 'worker_cooldown', 0);
if ($cooldown > 0) {
Logger::debug('Wait for cooldown.', ['cooldown' => $cooldown]);
if ($cooldown < 1) {
usleep($cooldown * 1000000);
} else {
sleep($cooldown);
}
}
$load_cooldown = DI::config()->get('system', 'worker_load_cooldown');
$processes_cooldown = DI::config()->get('system', 'worker_processes_cooldown');
if (($load_cooldown == 0) && ($processes_cooldown == 0)) {
return;
}
$sleeping = false;
while ($load = System::getLoadAvg()) {
if (($load_cooldown > 0) && ($load['average1'] > $load_cooldown)) {
if (!$sleeping) {
Logger::notice('Load induced pre execution cooldown.', ['max' => $load_cooldown, 'load' => $load, 'called-by' => System::callstack(1)]);
$sleeping = true;
}
sleep(1);
continue;
}
if (($processes_cooldown > 0) && ($load['scheduled'] > $processes_cooldown)) {
if (!$sleeping) {
Logger::notice('Process induced pre execution cooldown.', ['max' => $processes_cooldown, 'load' => $load, 'called-by' => System::callstack(1)]);
$sleeping = true;
}
sleep(1);
continue;
}
break;
}
if ($sleeping) {
Logger::notice('Cooldown ended.', ['max-load' => $load_cooldown, 'max-processes' => $processes_cooldown, 'load' => $load, 'called-by' => System::callstack(1)]);
}
}
/**
* Execute a function from the queue
*
@ -458,28 +539,7 @@ class Worker
{
$a = DI::app();
$cooldown = DI::config()->get('system', 'worker_cooldown', 0);
if ($cooldown > 0) {
Logger::debug('Pre execution cooldown.', ['cooldown' => $cooldown, 'id' => $queue['id'], 'priority' => $queue['priority'], 'command' => $queue['command']]);
sleep($cooldown);
}
$load_cooldown = DI::config()->get('system', 'worker_load_cooldown');
$processes_cooldown = DI::config()->get('system', 'worker_processes_cooldown');
while ((($load_cooldown > 0) || ($processes_cooldown > 0)) && ($load = System::getLoadAvg())) {
if (($load_cooldown > 0) && ($load['average1'] > $load_cooldown)) {
Logger::debug('Load induced pre execution cooldown.', ['max' => $load_cooldown, 'load' => $load, 'id' => $queue['id'], 'priority' => $queue['priority'], 'command' => $queue['command']]);
sleep(1);
continue;
}
if (($processes_cooldown > 0) && ($load['scheduled'] > $processes_cooldown)) {
Logger::debug('Process induced pre execution cooldown.', ['max' => $processes_cooldown, 'load' => $load, 'id' => $queue['id'], 'priority' => $queue['priority'], 'command' => $queue['command']]);
sleep(1);
continue;
}
break;
}
self::coolDown();
Logger::enableWorker($funcname);
@ -527,6 +587,8 @@ class Worker
Logger::info('Performance:', ['state' => self::$state, 'count' => $dbcount, 'stat' => $dbstat, 'write' => $dbwrite, 'lock' => $dblock, 'total' => $dbtotal, 'rest' => $rest, 'exec' => $exec]);
self::coolDown();
self::$up_start = microtime(true);
self::$db_duration = 0;
self::$db_duration_count = 0;
@ -547,11 +609,6 @@ class Worker
Logger::info('Process done.', ['priority' => $queue['priority'], 'id' => $queue['id'], 'duration' => round($duration, 3)]);
DI::profiler()->saveLog(DI::logger(), 'ID ' . $queue['id'] . ': ' . $funcname);
if ($cooldown > 0) {
Logger::info('Post execution cooldown.', ['priority' => $queue['priority'], 'id' => $queue['id'], 'cooldown' => $cooldown]);
sleep($cooldown);
}
}
/**
@ -744,7 +801,7 @@ class Worker
Logger::notice('Load: ' . $load . '/' . $maxsysload . ' - processes: ' . $deferred . '/' . $active . '/' . $waiting_processes . $processlist . ' - maximum: ' . $queues . '/' . $maxqueues);
// Are there fewer workers running as possible? Then fork a new one.
if (!DI::config()->get('system', 'worker_dont_fork', false) && ($queues > ($active + 1)) && self::entriesExists()) {
if (!DI::config()->get('system', 'worker_dont_fork', false) && ($queues > ($active + 1)) && self::entriesExists() && !self::systemLimitReached()) {
Logger::info('There are fewer workers as possible, fork a new worker.', ['active' => $active, 'queues' => $queues]);
if (Worker\Daemon::isMode()) {
Worker\IPC::SetJobState(true);
@ -1222,7 +1279,7 @@ class Worker
Worker\Daemon::checkState();
// Should we quit and wait for the worker to be called as a cronjob?
if ($dont_fork) {
if ($dont_fork || self::systemLimitReached()) {
return $added;
}

2
src/Protocol/ActivityPub/Delivery.php
View file

@ -22,6 +22,7 @@
namespace Friendica\Protocol\ActivityPub;
use Friendica\Core\Logger;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Contact;
@ -55,6 +56,7 @@ class Delivery
Logger::notice('Inbox delivery has a server failure', ['inbox' => $inbox]);
$serverfail = true;
}
Worker::coolDown();
}
if ($serverfail || (!$result['success'] && !$result['drop'])) {

4
src/Worker/Notifier.php
View file

@ -573,6 +573,7 @@ class Notifier
if (Worker::add($deliver_options, 'Delivery', $cmd, $post_uriid, (int)$contact['id'], $sender_uid)) {
$delivery_queue_count++;
}
Worker::coolDown();
}
return $delivery_queue_count;
}
@ -695,6 +696,7 @@ class Notifier
Logger::info('Account removal via ActivityPub', ['uid' => $self_user_id, 'inbox' => $inbox]);
Worker::add(['priority' => PRIORITY_NEGLIGIBLE, 'created' => $created, 'dont_fork' => true],
'APDelivery', Delivery::REMOVAL, 0, $inbox, $self_user_id, $receivers);
Worker::coolDown();
}
return true;
@ -818,6 +820,7 @@ class Notifier
$delivery_queue_count++;
}
}
Worker::coolDown();
}
// We deliver posts to relay servers slightly delayed to priorize the direct delivery
@ -833,6 +836,7 @@ class Notifier
$delivery_queue_count++;
}
}
Worker::coolDown();
}
return ['count' => $delivery_queue_count, 'contacts' => $contacts];

1
src/Worker/PollContacts.php
View file

@ -81,6 +81,7 @@ class PollContacts
Logger::notice("Polling " . $contact["network"] . " " . $contact["id"] . " " . $contact['priority'] . " " . $contact["nick"] . " " . $contact["name"]);
Worker::add(['priority' => $priority, 'dont_fork' => true, 'force_priority' => true], 'OnePoll', (int)$contact['id']);
Worker::coolDown();
}
DBA::close($contacts);
}

1
src/Worker/UpdateContacts.php
View file

@ -62,6 +62,7 @@ class UpdateContacts
if (Worker::add(['priority' => PRIORITY_LOW, 'dont_fork' => true], "UpdateContact", $contact['id'])) {
++$count;
}
Worker::coolDown();
}
DBA::close($contacts);

1
src/Worker/UpdateGServers.php
View file

@ -72,6 +72,7 @@ class UpdateGServers
$count++;
}
}
Worker::coolDown();
}
DBA::close($gservers);
Logger::info('Updated servers', ['count' => $count]);

1
src/Worker/UpdateServerPeers.php
View file

@ -63,6 +63,7 @@ class UpdateServerPeers
// This endpoint doesn't offer the schema. So we assume that it is HTTPS.
GServer::add('https://' . $peer);
++$added;
Worker::coolDown();
}
Logger::info('Server peer update ended', ['total' => $total, 'added' => $added, 'url' => $url]);
}

2
static/defaults.config.php
View file

@ -615,7 +615,7 @@ return [
// Minimum for this config value is 1. Maximum is 64 as the resulting profile URL mustn't be longer than 255 chars.
'username_max_length' => 48,
// worker_cooldown (Integer)
// worker_cooldown (Float)
// Cooldown period in seconds before each worker function call.
'worker_cooldown' => 0,