private function buildPropertyListView(PhabricatorDaemonLog $daemon)
 {
     $request = $this->getRequest();
     $viewer = $request->getUser();
     $view = id(new PHUIPropertyListView())->setUser($viewer);
     $id = $daemon->getID();
     $c_epoch = $daemon->getDateCreated();
     $u_epoch = $daemon->getDateModified();
     $unknown_time = PhabricatorDaemonLogQuery::getTimeUntilUnknown();
     $dead_time = PhabricatorDaemonLogQuery::getTimeUntilDead();
     $wait_time = PhutilDaemonHandle::getWaitBeforeRestart();
     $details = null;
     $status = $daemon->getStatus();
     switch ($status) {
         case PhabricatorDaemonLog::STATUS_RUNNING:
             $details = pht('This daemon is running normally and reported a status update ' . 'recently (within %s).', phutil_format_relative_time($unknown_time));
             break;
         case PhabricatorDaemonLog::STATUS_UNKNOWN:
             $details = pht('This daemon has not reported a status update recently (within %s). ' . 'It may have exited abruptly. After %s, it will be presumed dead.', phutil_format_relative_time($unknown_time), phutil_format_relative_time($dead_time));
             break;
         case PhabricatorDaemonLog::STATUS_DEAD:
             $details = pht('This daemon did not report a status update for %s. It is ' . 'presumed dead. Usually, this indicates that the daemon was ' . 'killed or otherwise exited abruptly with an error. You may ' . 'need to restart it.', phutil_format_relative_time($dead_time));
             break;
         case PhabricatorDaemonLog::STATUS_WAIT:
             $details = pht('This daemon is running normally and reported a status update ' . 'recently (within %s). However, it encountered an error while ' . 'doing work and is waiting a little while (%s) to resume ' . 'processing. After encountering an error, daemons wait before ' . 'resuming work to avoid overloading services.', phutil_format_relative_time($unknown_time), phutil_format_relative_time($wait_time));
             break;
         case PhabricatorDaemonLog::STATUS_EXITING:
             $details = pht('This daemon is shutting down gracefully.');
             break;
         case PhabricatorDaemonLog::STATUS_EXITED:
             $details = pht('This daemon exited normally and is no longer running.');
             break;
     }
     $view->addProperty(pht('Status Details'), $details);
     $view->addProperty(pht('Daemon Class'), $daemon->getDaemon());
     $view->addProperty(pht('Host'), $daemon->getHost());
     $view->addProperty(pht('PID'), $daemon->getPID());
     $view->addProperty(pht('Running as'), $daemon->getRunningAsUser());
     $view->addProperty(pht('Started'), phabricator_datetime($c_epoch, $viewer));
     $view->addProperty(pht('Seen'), pht('%s ago (%s)', phutil_format_relative_time(time() - $u_epoch), phabricator_datetime($u_epoch, $viewer)));
     $argv = $daemon->getArgv();
     if (is_array($argv)) {
         $argv = implode("\n", $argv);
     }
     $view->addProperty(pht('Argv'), phutil_tag('textarea', array('style' => 'width: 100%; height: 12em;'), $argv));
     $view->addProperty(pht('View Full Logs'), phutil_tag('tt', array(), "phabricator/ \$ ./bin/phd log --id {$id}"));
     return $view;
 }
 public function handleRequest(AphrontRequest $request)
 {
     $viewer = $this->getViewer();
     $window_start = time() - 60 * 15;
     // Assume daemons spend about 250ms second in overhead per task acquiring
     // leases and doing other bookkeeping. This is probably an over-estimation,
     // but we'd rather show that utilization is too high than too low.
     $lease_overhead = 0.25;
     $completed = id(new PhabricatorWorkerArchiveTaskQuery())->withDateModifiedSince($window_start)->execute();
     $failed = id(new PhabricatorWorkerActiveTask())->loadAllWhere('failureTime > %d', $window_start);
     $usage_total = 0;
     $usage_start = PHP_INT_MAX;
     $completed_info = array();
     foreach ($completed as $completed_task) {
         $class = $completed_task->getTaskClass();
         if (empty($completed_info[$class])) {
             $completed_info[$class] = array('n' => 0, 'duration' => 0);
         }
         $completed_info[$class]['n']++;
         $duration = $completed_task->getDuration();
         $completed_info[$class]['duration'] += $duration;
         // NOTE: Duration is in microseconds, but we're just using seconds to
         // compute utilization.
         $usage_total += $lease_overhead + $duration / 1000000;
         $usage_start = min($usage_start, $completed_task->getDateModified());
     }
     $completed_info = isort($completed_info, 'n');
     $rows = array();
     foreach ($completed_info as $class => $info) {
         $rows[] = array($class, number_format($info['n']), pht('%s us', new PhutilNumber((int) ($info['duration'] / $info['n']))));
     }
     if ($failed) {
         // Add the time it takes to restart the daemons. This includes a guess
         // about other overhead of 2X.
         $restart_delay = PhutilDaemonHandle::getWaitBeforeRestart();
         $usage_total += $restart_delay * count($failed) * 2;
         foreach ($failed as $failed_task) {
             $usage_start = min($usage_start, $failed_task->getFailureTime());
         }
         $rows[] = array(phutil_tag('em', array(), pht('Temporary Failures')), count($failed), null);
     }
     $logs = id(new PhabricatorDaemonLogQuery())->setViewer($viewer)->withStatus(PhabricatorDaemonLogQuery::STATUS_ALIVE)->setAllowStatusWrites(true)->execute();
     $taskmasters = 0;
     foreach ($logs as $log) {
         if ($log->getDaemon() == 'PhabricatorTaskmasterDaemon') {
             $taskmasters++;
         }
     }
     if ($taskmasters && $usage_total) {
         // Total number of wall-time seconds the daemons have been running since
         // the oldest event. For very short times round up to 15s so we don't
         // render any ridiculous numbers if you reload the page immediately after
         // restarting the daemons.
         $available_time = $taskmasters * max(15, time() - $usage_start);
         // Percentage of those wall-time seconds we can account for, which the
         // daemons spent doing work:
         $used_time = $usage_total / $available_time;
         $rows[] = array(phutil_tag('em', array(), pht('Queue Utilization (Approximate)')), sprintf('%.1f%%', 100 * $used_time), null);
     }
     $completed_table = new AphrontTableView($rows);
     $completed_table->setNoDataString(pht('No tasks have completed in the last 15 minutes.'));
     $completed_table->setHeaders(array(pht('Class'), pht('Count'), pht('Avg')));
     $completed_table->setColumnClasses(array('wide', 'n', 'n'));
     $completed_panel = id(new PHUIObjectBoxView())->setHeaderText(pht('Recently Completed Tasks (Last 15m)'))->setTable($completed_table);
     $daemon_table = id(new PhabricatorDaemonLogListView())->setUser($viewer)->setDaemonLogs($logs);
     $daemon_panel = id(new PHUIObjectBoxView())->setHeaderText(pht('Active Daemons'))->setTable($daemon_table);
     $tasks = id(new PhabricatorWorkerLeaseQuery())->setSkipLease(true)->withLeasedTasks(true)->setLimit(100)->execute();
     $tasks_table = id(new PhabricatorDaemonTasksTableView())->setTasks($tasks)->setNoDataString(pht('No tasks are leased by workers.'));
     $leased_panel = id(new PHUIObjectBoxView())->setHeaderText(pht('Leased Tasks'))->setTable($tasks_table);
     $task_table = new PhabricatorWorkerActiveTask();
     $queued = queryfx_all($task_table->establishConnection('r'), 'SELECT taskClass, count(*) N FROM %T GROUP BY taskClass
     ORDER BY N DESC', $task_table->getTableName());
     $rows = array();
     foreach ($queued as $row) {
         $rows[] = array($row['taskClass'], number_format($row['N']));
     }
     $queued_table = new AphrontTableView($rows);
     $queued_table->setHeaders(array(pht('Class'), pht('Count')));
     $queued_table->setColumnClasses(array('wide', 'n'));
     $queued_table->setNoDataString(pht('Task queue is empty.'));
     $queued_panel = new PHUIObjectBoxView();
     $queued_panel->setHeaderText(pht('Queued Tasks'));
     $queued_panel->setTable($queued_table);
     $upcoming = id(new PhabricatorWorkerLeaseQuery())->setLimit(10)->setSkipLease(true)->execute();
     $upcoming_panel = id(new PHUIObjectBoxView())->setHeaderText(pht('Next In Queue'))->setTable(id(new PhabricatorDaemonTasksTableView())->setTasks($upcoming)->setNoDataString(pht('Task queue is empty.')));
     $triggers = id(new PhabricatorWorkerTriggerQuery())->setViewer($viewer)->setOrder(PhabricatorWorkerTriggerQuery::ORDER_EXECUTION)->withNextEventBetween(0, null)->needEvents(true)->setLimit(10)->execute();
     $triggers_table = $this->buildTriggersTable($triggers);
     $triggers_panel = id(new PHUIObjectBoxView())->setHeaderText(pht('Upcoming Triggers'))->setTable($triggers_table);
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb(pht('Console'));
     $nav = $this->buildSideNavView();
     $nav->selectFilter('/');
     $nav->appendChild(array($crumbs, $completed_panel, $daemon_panel, $queued_panel, $leased_panel, $upcoming_panel, $triggers_panel));
     return $this->newPage()->setTitle(pht('Console'))->appendChild($nav);
 }