Deployer\Executor\ParallelExecutor::catchExceptions PHP Метод

    public function catchExceptions()
    {
        while (count($this->exceptionStorage) > 0) {
            list($serverName, $exceptionClass, $message) = $this->exceptionStorage->pop();
            // Print exception message.
            $this->informer->taskException($serverName, $exceptionClass, $message);
            // Save message.
            $this->lastExceptionMessage = $message;
            // We got some exception, so not.
            $this->isSuccessfullyFinished = false;
            if ($exceptionClass == 'Deployer\\Exception\\NonFatalException') {
                // If we got NonFatalException, continue other tasks.
                $this->hasNonFatalException = true;
            } else {
                // Do not run other task.
                // Finish all current worker tasks and stop loop.
                $this->tasks = [];
                // Worker will not mark this task as done (remove self server name from `tasks_to_do` list),
                // so to finish current task execution we need to manually remove it from that list.
                $taskToDoStorage = $this->pure->getStorage('tasks_to_do');
                $taskToDoStorage->delete($serverName);
            }
        }
    }