Meaning that they are also not running but left in limbo
This is a form of garbage collection to handle cases where the
server may have been killed and the workers did not die gracefully
and therefore leave state information in Redis.
protected function execute(InputInterface $input, OutputInterface $output)
{
$host = new Resque\Host();
$cleaned_hosts = $host->cleanup();
$worker = new Resque\Worker('*');
$cleaned_workers = $worker->cleanup();
$cleaned_hosts = array_merge_recursive($cleaned_hosts, $host->cleanup());
$cleaned_jobs = Resque\Job::cleanup();
$this->log('Cleaned hosts: <pop>' . json_encode($cleaned_hosts['hosts']) . '</pop>');
$this->log('Cleaned workers: <pop>' . json_encode(array_merge($cleaned_hosts['workers'], $cleaned_workers)) . '</pop>');
$this->log('Cleaned <pop>' . $cleaned_jobs['zombie'] . '</pop> zombie job' . ($cleaned_jobs['zombie'] == 1 ? '' : 's'));
$this->log('Cleared <pop>' . $cleaned_jobs['processed'] . '</pop> processed job' . ($cleaned_jobs['processed'] == 1 ? '' : 's'));
}
/**
* Perform necessary actions to start a worker
*/
protected function startup()
{
$this->host->cleanup();
$this->cleanup();
$this->register();
$cleaned = Job::cleanup($this->queues);
if ($cleaned['zombie']) {
$this->log('Failed <pop>' . $cleaned['zombie'] . '</pop> zombie job' . ($cleaned['zombie'] == 1 ? '' : 's'), Logger::NOTICE);
}
if ($cleaned['processed']) {
$this->log('Cleared <pop>' . $cleaned['processed'] . '</pop> processed job' . ($cleaned['processed'] == 1 ? '' : 's'), Logger::NOTICE);
}
$this->setStatus(self::STATUS_RUNNING);
Event::fire(Event::WORKER_STARTUP, $this);
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$host = $this->getConfig('listenhost');
$port = $this->getConfig('listenport');
$retry = $this->getConfig('listenretry');
$timeout = $this->getConfig('listentimeout');
$server = new Socket\Server(array('ip' => $host, 'port' => $port), $this->logger);
do {
try {
$server->start();
} catch (Socket\Exception $e) {
if ($retry) {
$server->log('<error>Socket server failure: "' . $e->getMessage() . '". Retrying in ' . $timeout . ' seconds...</error>');
sleep($timeout);
continue;
}
throw $e;
}
break;
} while ($retry);
$command = $this;
$server->onConnect(function ($server, &$client, $input) {
//
});
$server->onDisconnect(function ($server, &$client, $message) {
$server->send($client, $message);
});
$server->onReceive(function ($server, &$client, $input) use($command) {
if (!($data = json_decode(trim($input), true))) {
$data = trim($input);
}
if (is_array($data)) {
$cmd = $data['cmd'];
unset($data['cmd']);
} else {
try {
$input = new StringInput($data, new InputDefinition(array(new InputArgument('cmd', InputArgument::REQUIRED), new InputArgument('id', InputArgument::OPTIONAL), new InputOption('force', 'f', InputOption::VALUE_NONE), new InputOption('json', 'j', InputOption::VALUE_NONE))));
$cmd = $input->getArgument('cmd');
$data = array('id' => $input->getArgument('id'), 'force' => $input->getOption('force'), 'json' => $input->getOption('json'));
} catch (\Exception $e) {
$server->send($client, 'Command error: ' . $e->getMessage());
return;
}
}
switch (strtolower($cmd)) {
case 'shell':
$server->send($client, 'Connected to php-resque on ' . $server . '. To quit, type "quit"');
break;
case 'workers':
$workers = Worker::hostWorkers();
if (empty($workers)) {
$response = array('ok' => 0, 'message' => 'There are no workers running on this host.');
$server->send($client, $data['json'] ? json_encode($response) : $response['message']);
return;
}
if ($data['json']) {
$response = array('ok' => 1, 'data' => array());
foreach ($workers as $i => $worker) {
$response['data'][] = $worker->getPacket();
}
$server->send($client, json_encode($response));
} else {
$table = new Resque\Helpers\Table($command);
$table->setHeaders(array('#', 'Status', 'ID', 'Running for', 'Running job', 'P', 'C', 'F', 'Interval', 'Timeout', 'Memory (Limit)'));
foreach ($workers as $i => $worker) {
$packet = $worker->getPacket();
$table->addRow(array($i + 1, Worker::$statusText[$packet['status']], (string) $worker, Util::human_time_diff($packet['started']), !empty($packet['job_id']) ? $packet['job_id'] . ' for ' . Util::human_time_diff($packet['job_started']) : '-', $packet['processed'], $packet['cancelled'], $packet['failed'], $packet['interval'], $packet['timeout'], Util::bytes($packet['memory']) . ' (' . $packet['memory_limit'] . ' MB)'));
}
$server->send($client, (string) $table);
}
break;
case 'worker:start':
case 'worker:restart':
$response = array('ok' => 0, 'message' => 'This command is not yet supported remotely.');
$server->send($client, $data['json'] ? json_encode($response) : $response['message']);
break;
case 'worker:pause':
case 'worker:resume':
case 'worker:stop':
case 'worker:cancel':
$valid_id = false;
$id = preg_replace('/[^a-z0-9\\*:,\\.;-]/i', '', $data['id']);
if (!empty($id)) {
if (false === ($worker = Resque\Worker::hostWorker($id))) {
if ($data['json']) {
$response = array('ok' => 0, 'message' => 'Invalid worker id.');
$server->send($client, json_encode($response));
} else {
$server->send($client, "Usage:\n\t{$cmd} <worker_id>\n\n" . "Help: You must specify a valid worker id, to get a \n" . "list of workers use the \"workers\" command.");
}
return;
}
$workers = array($worker);
} else {
$workers = Resque\Worker::hostWorkers();
if (empty($workers)) {
$response = array('ok' => 0, 'message' => 'There are no workers on this host.');
$server->send($client, $data['json'] ? json_encode($response) : $response['message']);
return;
}
}
$cmd = $data['force'] ? 'worker:term' : $cmd;
$signals = array('worker:pause' => SIGUSR2, 'worker:resume' => SIGCONT, 'worker:stop' => SIGQUIT, 'worker:term' => SIGTERM, 'worker:cancel' => SIGUSR1);
$messages = array('worker:pause' => 'Paused worker %s', 'worker:resume' => 'Resumed worker %s', 'worker:stop' => 'Stopped worker %s', 'worker:term' => 'Force stopped worker %s', 'worker:cancel' => 'Cancelled running job on worker %s');
$response = array('ok' => 1, 'data' => array());
foreach ($workers as $worker) {
$pid = $worker->getPid();
if ($cmd == 'worker:cancel') {
$packet = $worker->getPacket();
$job_pid = (int) $packet['job_pid'];
if ($job_pid and posix_kill($job_pid, 0)) {
$pid = $job_pid;
} else {
$response['data'][] = array('ok' => 0, 'message' => 'The worker ' . $worker . ' has no running job to cancel.');
continue;
}
}
if (posix_kill($pid, $signals[$cmd])) {
$response['data'][] = array('ok' => 1, 'message' => sprintf($messages[$cmd], $worker));
} else {
$response['data'][] = array('ok' => 0, 'message' => 'There was an error sending the signal, please try again.');
}
}
$server->send($client, $data['json'] ? json_encode($response) : implode(PHP_EOL, array_map(function ($d) {
return $d['message'];
}, $response['data'])));
break;
case 'job:queue':
$response = array('ok' => 0, 'message' => 'Cannot queue remotely as it makes no sense. Use command `resque job:queue <job> <args> [--queue=<queue> [--delay=<delay>]]` locally.');
$server->send($client, $data['json'] ? json_encode($response) : $response['message']);
break;
case 'cleanup':
$host = new Host();
$cleaned_hosts = $host->cleanup();
$worker = new Worker('*');
$cleaned_workers = $worker->cleanup();
$cleaned_hosts = array_merge_recursive($cleaned_hosts, $host->cleanup());
$cleaned_jobs = Job::cleanup();
if ($data['json']) {
$response = array('ok' => 1, 'data' => array_merge($cleaned_hosts, $cleaned_workers, $cleaned_jobs));
$server->send($client, json_encode($response));
} else {
$output = 'Cleaned hosts: ' . json_encode($cleaned_hosts['hosts']) . PHP_EOL . 'Cleaned workers: ' . json_encode(array_merge($cleaned_hosts['workers'], $cleaned_workers)) . PHP_EOL . 'Cleaned ' . $cleaned_jobs['zombie'] . ' zombie job' . ($cleaned_jobs['zombie'] == 1 ? '' : 's') . PHP_EOL . 'Cleared ' . $cleaned_jobs['processed'] . ' processed job' . ($cleaned_jobs['processed'] == 1 ? '' : 's');
}
$server->send($client, $output);
break;
case 'shutdown':
$server->shutdown();
break;
case 'quit':
case 'exit':
$server->disconnect($client);
break;
default:
$response = array('ok' => 0, 'message' => 'Sorry, I don\'t know what to do with command "' . $cmd . '".');
$server->send($client, $data['json'] ? json_encode($response) : $response['message']);
break;
}
});
$server->run();
}
