*/
namespace Friendica\Core;
-use Friendica\Core\Addon;
-use Friendica\Core\Config;
-use Friendica\Core\System;
-use Friendica\Database\DBM;
+use Friendica\Database\DBA;
use Friendica\Model\Process;
use Friendica\Util\DateTimeFormat;
-use Friendica\Util\Lock;
use Friendica\Util\Network;
-use dba;
require_once 'include/dba.php';
self::$up_start = microtime(true);
// At first check the maximum load. We shouldn't continue with a high load
- if ($a->maxload_reached()) {
+ if ($a->isMaxLoadReached()) {
logger('Pre check: maximum load reached, quitting.', LOGGER_DEBUG);
return;
}
self::startProcess();
// Kill stale processes every 5 minutes
- $last_cleanup = Config::get('system', 'poller_last_cleaned', 0);
+ $last_cleanup = Config::get('system', 'worker_last_cleaned', 0);
if (time() > ($last_cleanup + 300)) {
- Config::set('system', 'poller_last_cleaned', time());
+ Config::set('system', 'worker_last_cleaned', time());
self::killStaleWorkers();
}
}
// Possibly there are too much database processes that block the system
- if ($a->max_processes_reached()) {
+ if ($a->isMaxProcessesReached()) {
logger('Pre check: maximum processes reached, quitting.', LOGGER_DEBUG);
return;
}
}
// If possible we will fetch new jobs for this worker
- if (!$refetched && Lock::set('poller_worker_process', 0)) {
+ if (!$refetched && Lock::acquire('worker_process', 0)) {
$stamp = (float)microtime(true);
$refetched = self::findWorkerProcesses($passing_slow);
self::$db_duration += (microtime(true) - $stamp);
- Lock::remove('poller_worker_process');
+ Lock::release('worker_process');
}
}
// To avoid the quitting of multiple workers only one worker at a time will execute the check
- if (Lock::set('poller_worker', 0)) {
+ if (Lock::acquire('worker', 0)) {
$stamp = (float)microtime(true);
// Count active workers and compare them with a maximum value that depends on the load
if (self::tooMuchWorkers()) {
logger('Memory limit reached, quitting.', LOGGER_DEBUG);
return;
}
- Lock::remove('poller_worker');
+ Lock::release('worker');
self::$db_duration += (microtime(true) - $stamp);
}
return;
}
}
- logger("Couldn't select a workerqueue entry, quitting.", LOGGER_DEBUG);
+
+ // Cleaning up. Possibly not needed, but it doesn't harm anything.
+ if (Config::get('system', 'worker_daemon_mode', false)) {
+ self::IPCSetJobState(false);
+ }
+ logger("Couldn't select a workerqueue entry, quitting process " . getmypid() . ".", LOGGER_DEBUG);
}
/**
*/
private static function totalEntries()
{
- $s = dba::fetch_first("SELECT COUNT(*) AS `total` FROM `workerqueue` WHERE `executed` <= ? AND NOT `done`", NULL_DATE);
- if (DBM::is_result($s)) {
- return $s["total"];
- } else {
- return 0;
- }
+ return DBA::count('workerqueue', ["`executed` <= ? AND NOT `done`", NULL_DATE]);
}
/**
private static function highestPriority()
{
$condition = ["`executed` <= ? AND NOT `done`", NULL_DATE];
- $workerqueue = dba::selectFirst('workerqueue', ['priority'], $condition, ['order' => ['priority']]);
- if (DBM::is_result($workerqueue)) {
+ $workerqueue = DBA::selectFirst('workerqueue', ['priority'], $condition, ['order' => ['priority']]);
+ if (DBA::isResult($workerqueue)) {
return $workerqueue["priority"];
} else {
return 0;
private static function processWithPriorityActive($priority)
{
$condition = ["`priority` <= ? AND `executed` > ? AND NOT `done`", $priority, NULL_DATE];
- return dba::exists('workerqueue', $condition);
+ return DBA::exists('workerqueue', $condition);
}
/**
}
// Constantly check the number of parallel database processes
- if ($a->max_processes_reached()) {
+ if ($a->isMaxProcessesReached()) {
logger("Max processes reached for process ".$mypid, LOGGER_DEBUG);
return false;
}
if ($age > 1) {
$stamp = (float)microtime(true);
- dba::update('workerqueue', ['executed' => DateTimeFormat::utcNow()], ['pid' => $mypid, 'done' => false]);
+ DBA::update('workerqueue', ['executed' => DateTimeFormat::utcNow()], ['pid' => $mypid, 'done' => false]);
self::$db_duration += (microtime(true) - $stamp);
}
self::execFunction($queue, $include, $argv, true);
$stamp = (float)microtime(true);
- if (dba::update('workerqueue', ['done' => true], ['id' => $queue["id"]])) {
- Config::set('system', 'last_poller_execution', DateTimeFormat::utcNow());
+ if (DBA::update('workerqueue', ['done' => true], ['id' => $queue["id"]])) {
+ Config::set('system', 'last_worker_execution', DateTimeFormat::utcNow());
}
self::$db_duration = (microtime(true) - $stamp);
if (!validate_include($include)) {
logger("Include file ".$argv[0]." is not valid!");
- dba::delete('workerqueue', ['id' => $queue["id"]]);
+ DBA::delete('workerqueue', ['id' => $queue["id"]]);
return true;
}
if ($age > 1) {
$stamp = (float)microtime(true);
- dba::update('workerqueue', ['executed' => DateTimeFormat::utcNow()], ['pid' => $mypid, 'done' => false]);
+ DBA::update('workerqueue', ['executed' => DateTimeFormat::utcNow()], ['pid' => $mypid, 'done' => false]);
self::$db_duration += (microtime(true) - $stamp);
}
self::execFunction($queue, $funcname, $argv, false);
$stamp = (float)microtime(true);
- if (dba::update('workerqueue', ['done' => true], ['id' => $queue["id"]])) {
- Config::set('system', 'last_poller_execution', DateTimeFormat::utcNow());
+ if (DBA::update('workerqueue', ['done' => true], ['id' => $queue["id"]])) {
+ Config::set('system', 'last_worker_execution', DateTimeFormat::utcNow());
}
self::$db_duration = (microtime(true) - $stamp);
} else {
logger("Function ".$funcname." does not exist");
- dba::delete('workerqueue', ['id' => $queue["id"]]);
+ DBA::delete('workerqueue', ['id' => $queue["id"]]);
}
return true;
$argc = count($argv);
- $new_process_id = uniqid("wrk", true);
+ $new_process_id = System::processID("wrk");
logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." ".$queue["parameter"]." - Process PID: ".$new_process_id);
$a->process_id = $old_process_id;
unset($a->queue);
- $duration = number_format(microtime(true) - $stamp, 3);
+ $duration = (microtime(true) - $stamp);
self::$up_start = microtime(true);
if ($max == 0) {
// the maximum number of possible user connections can be a system variable
- $r = dba::fetch_first("SHOW VARIABLES WHERE `variable_name` = 'max_user_connections'");
- if (DBM::is_result($r)) {
+ $r = DBA::fetchFirst("SHOW VARIABLES WHERE `variable_name` = 'max_user_connections'");
+ if (DBA::isResult($r)) {
$max = $r["Value"];
}
// Or it can be granted. This overrides the system variable
- $r = dba::p('SHOW GRANTS');
- while ($grants = dba::fetch($r)) {
+ $r = DBA::p('SHOW GRANTS');
+ while ($grants = DBA::fetch($r)) {
$grant = array_pop($grants);
if (stristr($grant, "GRANT USAGE ON")) {
if (preg_match("/WITH MAX_USER_CONNECTIONS (\d*)/", $grant, $match)) {
}
}
}
- dba::close($r);
+ DBA::close($r);
}
// 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 = dba::p('SHOW PROCESSLIST');
- $used = dba::num_rows($r);
- dba::close($r);
+ $r = DBA::p('SHOW PROCESSLIST');
+ $used = DBA::numRows($r);
+ DBA::close($r);
logger("Connection usage (user values): ".$used."/".$max, LOGGER_DEBUG);
// We will now check for the system values.
// This limit could be reached although the user limits are fine.
- $r = dba::fetch_first("SHOW VARIABLES WHERE `variable_name` = 'max_connections'");
- if (!DBM::is_result($r)) {
+ $r = DBA::fetchFirst("SHOW VARIABLES WHERE `variable_name` = 'max_connections'");
+ if (!DBA::isResult($r)) {
return false;
}
$max = intval($r["Value"]);
if ($max == 0) {
return false;
}
- $r = dba::fetch_first("SHOW STATUS WHERE `variable_name` = 'Threads_connected'");
- if (!DBM::is_result($r)) {
+ $r = DBA::fetchFirst("SHOW STATUS WHERE `variable_name` = 'Threads_connected'");
+ if (!DBA::isResult($r)) {
return false;
}
$used = intval($r["Value"]);
*/
private static function killStaleWorkers()
{
- $entries = dba::select(
+ $entries = DBA::select(
'workerqueue',
['id', 'pid', 'executed', 'priority', 'parameter'],
['`executed` > ? AND NOT `done` AND `pid` != 0', NULL_DATE],
['order' => ['priority', 'created']]
);
- while ($entry = dba::fetch($entries)) {
+ while ($entry = DBA::fetch($entries)) {
if (!posix_kill($entry["pid"], 0)) {
- dba::update(
+ DBA::update(
'workerqueue',
['executed' => NULL_DATE, 'pid' => 0],
['id' => $entry["id"]]
// 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.");
+ logger("Worker process ".$entry["pid"]." (".substr(json_encode($argv), 0, 50).") took more than ".$max_duration." minutes. It will be killed now.");
posix_kill($entry["pid"], SIGTERM);
// We killed the stale process.
} elseif ($entry["priority"] != PRIORITY_CRITICAL) {
$new_priority = PRIORITY_NEGLIGIBLE;
}
- dba::update(
+ DBA::update(
'workerqueue',
['executed' => NULL_DATE, 'created' => DateTimeFormat::utcNow(), 'priority' => $new_priority, 'pid' => 0],
['id' => $entry["id"]]
);
} else {
- logger("Worker process ".$entry["pid"]." (".implode(" ", $argv).") now runs for ".round($duration)." of ".$max_duration." allowed minutes. That's okay.", LOGGER_DEBUG);
+ logger("Worker process ".$entry["pid"]." (".substr(json_encode($argv), 0, 50).") now runs for ".round($duration)." of ".$max_duration." allowed minutes. That's okay.", LOGGER_DEBUG);
}
}
}
if ($load) {
$maxsysload = intval(Config::get("system", "maxloadavg", 50));
- $maxworkers = $queues;
+ /* 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.
+ * For some environments, this rapid decrease is not needed.
+ * With exponent 1, you could have 20 max queues at idle and 13 at 37% of $maxsysload.
+ */
+ $exponent = intval(Config::get('system', 'worker_load_exponent', 3));
+ $slope = pow(max(0, $maxsysload - $load) / $maxsysload, $exponent);
+ $queues = intval(ceil($slope * $maxqueues));
- // Some magical mathemathics to reduce the workers
- $exponent = 3;
- $slope = $maxworkers / pow($maxsysload, $exponent);
- $queues = ceil($slope * pow(max(0, $maxsysload - $load), $exponent));
$processlist = '';
if (Config::get('system', 'worker_debug')) {
$listitem = [];
// Adding all processes with no workerqueue entry
- $processes = dba::p(
+ $processes = DBA::p(
"SELECT COUNT(*) AS `running` FROM `process` WHERE NOT EXISTS
(SELECT id FROM `workerqueue`
WHERE `workerqueue`.`pid` = `process`.`pid` AND NOT `done` AND `pid` != ?)",
getmypid()
);
- if ($process = dba::fetch($processes)) {
+ if ($process = DBA::fetch($processes)) {
$listitem[0] = "0:".$process["running"];
}
- dba::close($processes);
+ DBA::close($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)) {
+ $entries = DBA::p("SELECT COUNT(*) AS `entries`, `priority` FROM `workerqueue` WHERE NOT `done` GROUP BY `priority`");
+ while ($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($processes);
}
- dba::close($entries);
+ DBA::close($entries);
$intervals = [1, 10, 60];
$jobs_per_minute = [];
foreach ($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)) {
+ $jobs = DBA::p("SELECT COUNT(*) AS `jobs` FROM `workerqueue` WHERE `done` AND `executed` > UTC_TIMESTAMP() - INTERVAL ".intval($interval)." MINUTE");
+ if ($job = DBA::fetch($jobs)) {
$jobs_per_minute[$interval] = number_format($job['jobs'] / $interval, 0);
}
- dba::close($jobs);
+ DBA::close($jobs);
}
$processlist = ' - jpm: '.implode('/', $jobs_per_minute).' ('.implode(', ', $listitem).')';
}
logger("Load: ".$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)) && ($entries > 1)) {
+ if (!Config::get("system", "worker_dont_fork", false) && ($queues > ($active + 1)) && ($entries > 1)) {
logger("Active workers: ".$active."/".$queues." Fork a new worker.", LOGGER_DEBUG);
- self::spawnWorker();
+ if (Config::get('system', 'worker_daemon_mode', false)) {
+ self::IPCSetJobState(true);
+ } else {
+ self::spawnWorker();
+ }
}
}
- return $active >= $queues;
+ // if there are too much worker, we don't spawn a new one.
+ if (Config::get('system', 'worker_daemon_mode', false) && ($active > $queues)) {
+ self::IPCSetJobState(false);
+ }
+
+ return $active > $queues;
}
/**
*/
private static function activeWorkers()
{
- $workers = dba::fetch_first("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'Worker.php'");
-
- return $workers["processes"];
+ return DBA::count('process', ['command' => 'Worker.php']);
}
/**
{
$highest_priority = 0;
- $r = dba::p(
+ $r = DBA::p(
"SELECT `priority`
FROM `process`
INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid` AND NOT `done`"
);
// No active processes at all? Fine
- if (!DBM::is_result($r)) {
+ if (!DBA::isResult($r)) {
return false;
}
$priorities = [];
- while ($line = dba::fetch($r)) {
+ while ($line = DBA::fetch($r)) {
$priorities[] = $line["priority"];
}
- dba::close($r);
+ DBA::close($r);
// Should not happen
if (count($priorities) == 0) {
$ids = [];
if (self::passingSlow($highest_priority)) {
// Are there waiting processes with a higher priority than the currently highest?
- $result = dba::select(
+ $result = DBA::select(
'workerqueue',
['id'],
["`executed` <= ? AND `priority` < ? AND NOT `done`", NULL_DATE, $highest_priority],
['limit' => $limit, 'order' => ['priority', 'created']]
);
- while ($id = dba::fetch($result)) {
+ while ($id = DBA::fetch($result)) {
$ids[] = $id["id"];
}
- dba::close($result);
+ DBA::close($result);
$found = (count($ids) > 0);
if (!$found) {
// Give slower processes some processing time
- $result = dba::select(
+ $result = DBA::select(
'workerqueue',
['id'],
["`executed` <= ? AND `priority` > ? AND NOT `done`", NULL_DATE, $highest_priority],
['limit' => $limit, 'order' => ['priority', 'created']]
);
- while ($id = dba::fetch($result)) {
+ while ($id = DBA::fetch($result)) {
$ids[] = $id["id"];
}
- dba::close($result);
+ 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(
+ $result = DBA::select(
'workerqueue',
['id'],
["`executed` <= ? AND NOT `done`", NULL_DATE],
['limit' => $limit, 'order' => ['priority', 'created']]
);
- while ($id = dba::fetch($result)) {
+ while ($id = DBA::fetch($result)) {
$ids[] = $id["id"];
}
- dba::close($result);
+ 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', ['executed' => DateTimeFormat::utcNow(), 'pid' => $mypid], $ids);
+ DBA::update('workerqueue', ['executed' => DateTimeFormat::utcNow(), 'pid' => $mypid], $ids);
}
return $found;
$stamp = (float)microtime(true);
// There can already be jobs for us in the queue.
- $r = dba::select('workerqueue', [], ['pid' => getmypid(), 'done' => false]);
- if (DBM::is_result($r)) {
+ $r = DBA::select('workerqueue', [], ['pid' => getmypid(), 'done' => false]);
+ if (DBA::isResult($r)) {
self::$db_duration += (microtime(true) - $stamp);
- return dba::inArray($r);
+ return DBA::toArray($r);
}
- dba::close($r);
+ DBA::close($r);
$stamp = (float)microtime(true);
- if (!Lock::set('poller_worker_process')) {
+ if (!Lock::acquire('worker_process')) {
return false;
}
self::$lock_duration = (microtime(true) - $stamp);
$found = self::findWorkerProcesses($passing_slow);
self::$db_duration += (microtime(true) - $stamp);
- Lock::remove('poller_worker_process');
+ Lock::release('worker_process');
if ($found) {
- $r = dba::select('workerqueue', [], ['pid' => getmypid(), 'done' => false]);
- return dba::inArray($r);
+ $r = DBA::select('workerqueue', [], ['pid' => getmypid(), 'done' => false]);
+ return DBA::toArray($r);
}
return false;
}
{
$mypid = getmypid();
- dba::update('workerqueue', ['executed' => NULL_DATE, 'pid' => 0], ['pid' => $mypid, 'done' => false]);
+ DBA::update('workerqueue', ['executed' => NULL_DATE, 'pid' => 0], ['pid' => $mypid, 'done' => false]);
}
/**
self::clearProcesses();
- $workers = dba::fetch_first("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
+ $workers = self::activeWorkers();
- if ($workers["processes"] == 0) {
+ if ($workers == 0) {
self::callWorker();
}
}
/// @todo We should clean up the corresponding workerqueue entries as well
$condition = ["`created` < ? AND `command` = 'worker.php'",
DateTimeFormat::utc("now - ".$timeout." minutes")];
- dba::delete('process', $condition);
+ DBA::delete('process', $condition);
}
/**
}
/**
+ * @brief Spawns a new worker
* @return void
*/
- public static function spawnWorker()
+ public static function spawnWorker($do_cron = false)
{
- $args = ["bin/worker.php", "no_cron"];
- get_app()->proc_run($args);
+ $command = 'bin/worker.php';
+
+ $args = [ 'cron' => $do_cron ];
+
+ get_app()->proc_run($command, $args);
+
+ // after spawning we have to remove the flag.
+ if (Config::get('system', 'worker_daemon_mode', false)) {
+ self::IPCSetJobState(false);
+ }
}
/**
}
$priority = PRIORITY_MEDIUM;
- $dont_fork = Config::get("system", "worker_dont_fork");
+ $dont_fork = Config::get("system", "worker_dont_fork", false);
$created = DateTimeFormat::utcNow();
$run_parameter = array_shift($args);
}
$parameters = json_encode($args);
- $found = dba::exists('workerqueue', ['parameter' => $parameters, 'done' => false]);
+ $found = DBA::exists('workerqueue', ['parameter' => $parameters, 'done' => false]);
// Quit if there was a database error - a precaution for the update process to 3.5.3
- if (dba::errorNo() != 0) {
+ if (DBA::errorNo() != 0) {
return false;
}
if (!$found) {
- dba::insert('workerqueue', ['parameter' => $parameters, 'created' => $created, 'priority' => $priority]);
+ DBA::insert('workerqueue', ['parameter' => $parameters, 'created' => $created, 'priority' => $priority]);
}
// Should we quit and wait for the worker to be called as a cronjob?
}
// If there is a lock then we don't have to check for too much worker
- if (!Lock::set('poller_worker', 0)) {
+ if (!Lock::acquire('worker', 0)) {
return true;
}
// If there are already enough workers running, don't fork another one
$quit = self::tooMuchWorkers();
- Lock::remove('poller_worker');
+ Lock::release('worker');
if ($quit) {
return true;
}
+ // 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;
+ }
+
// Now call the worker to execute the jobs that we just added to the queue
self::spawnWorker();
{
return Process::deleteByPid();
}
+
+ /**
+ * Set the flag if some job is waiting
+ *
+ * @brief Set the flag if some job is waiting
+ * @param boolean $jobs Is there a waiting job?
+ */
+ public static function IPCSetJobState($jobs)
+ {
+ DBA::update('worker-ipc', ['jobs' => $jobs], ['key' => 1], true);
+ }
+
+ /**
+ * Checks if some worker job waits to be executed
+ *
+ * @brief Checks if some worker job waits to be executed
+ * @return bool
+ */
+ public static function IPCJobsExists()
+ {
+ $row = DBA::selectFirst('worker-ipc', ['jobs'], ['key' => 1]);
+
+ // When we don't have a row, no job is running
+ if (!DBA::isResult($row)) {
+ return false;
+ }
+
+ return (bool)$row['jobs'];
+ }
}
projects / friendica.git / blobdiff