| /** |
| * @file ThreadedSchedulingAgent.cpp |
| * ThreadedSchedulingAgent class implementation |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #include "ThreadedSchedulingAgent.h" |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| #include <utility> |
| #include <map> |
| #include <thread> |
| #include <iostream> |
| #include <cinttypes> |
| |
| #include "core/ClassLoader.h" |
| #include "core/Connectable.h" |
| #include "core/ProcessorNode.h" |
| #include "core/ProcessContext.h" |
| #include "core/ProcessContextBuilder.h" |
| #include "core/ProcessSession.h" |
| #include "core/ProcessSessionFactory.h" |
| #include "utils/GeneralUtils.h" |
| |
| namespace org { |
| namespace apache { |
| namespace nifi { |
| namespace minifi { |
| |
| void ThreadedSchedulingAgent::schedule(std::shared_ptr<core::Processor> processor) { |
| std::lock_guard<std::mutex> lock(mutex_); |
| |
| admin_yield_duration_ = 100; // We should prevent burning CPU in case of rollbacks |
| std::string yieldValue; |
| |
| if (configure_->get(Configure::nifi_administrative_yield_duration, yieldValue)) { |
| core::TimeUnit unit; |
| if (core::Property::StringToTime(yieldValue, admin_yield_duration_, unit) && core::Property::ConvertTimeUnitToMS(admin_yield_duration_, unit, admin_yield_duration_)) { |
| logger_->log_debug("nifi_administrative_yield_duration: [%" PRId64 "] ms", admin_yield_duration_); |
| } |
| } |
| |
| bored_yield_duration_ = 0; |
| if (configure_->get(Configure::nifi_bored_yield_duration, yieldValue)) { |
| core::TimeUnit unit; |
| if (core::Property::StringToTime(yieldValue, bored_yield_duration_, unit) && core::Property::ConvertTimeUnitToMS(bored_yield_duration_, unit, bored_yield_duration_)) { |
| logger_->log_debug("nifi_bored_yield_duration: [%" PRId64 "] ms", bored_yield_duration_); |
| } |
| } |
| |
| if (processor->getScheduledState() != core::RUNNING) { |
| logger_->log_debug("Can not schedule threads for processor %s because it is not running", processor->getName()); |
| return; |
| } |
| |
| if (thread_pool_.isTaskRunning(processor->getUUIDStr())) { |
| logger_->log_warn("Can not schedule threads for processor %s because there are existing threads running", processor->getName()); |
| return; |
| } |
| |
| std::shared_ptr<core::ProcessorNode> processor_node = std::make_shared<core::ProcessorNode>(processor); |
| |
| auto contextBuilder = core::ClassLoader::getDefaultClassLoader().instantiate<core::ProcessContextBuilder>("ProcessContextBuilder"); |
| |
| contextBuilder = contextBuilder->withContentRepository(content_repo_)->withFlowFileRepository(flow_repo_)->withProvider(controller_service_provider_)->withProvenanceRepository(repo_) |
| ->withConfiguration(configure_); |
| |
| auto processContext = contextBuilder->build(processor_node); |
| |
| auto sessionFactory = std::make_shared<core::ProcessSessionFactory>(processContext); |
| |
| processor->onSchedule(processContext, sessionFactory); |
| |
| std::vector<std::thread *> threads; |
| |
| ThreadedSchedulingAgent *agent = this; |
| for (int i = 0; i < processor->getMaxConcurrentTasks(); i++) { |
| // reference the disable function from serviceNode |
| processor->incrementActiveTasks(); |
| |
| std::function<utils::TaskRescheduleInfo()> f_ex = [agent, processor, processContext, sessionFactory] () { |
| return agent->run(processor, processContext, sessionFactory); |
| }; |
| |
| // create a functor that will be submitted to the thread pool. |
| auto monitor = utils::make_unique<utils::ComplexMonitor>(); |
| utils::Worker<utils::TaskRescheduleInfo> functor(f_ex, processor->getUUIDStr(), std::move(monitor)); |
| // move the functor into the thread pool. While a future is returned |
| // we aren't terribly concerned with the result. |
| std::future<utils::TaskRescheduleInfo> future; |
| thread_pool_.execute(std::move(functor), future); |
| } |
| logger_->log_debug("Scheduled thread %d concurrent workers for for process %s", processor->getMaxConcurrentTasks(), processor->getName()); |
| processors_running_.insert(processor->getUUIDStr()); |
| return; |
| } |
| |
| void ThreadedSchedulingAgent::stop() { |
| SchedulingAgent::stop(); |
| std::lock_guard<std::mutex> lock(mutex_); |
| for (const auto& p : processors_running_) { |
| logger_->log_error("SchedulingAgent is stopped before processor was unscheduled: %s", p); |
| thread_pool_.stopTasks(p); |
| } |
| } |
| |
| void ThreadedSchedulingAgent::unschedule(std::shared_ptr<core::Processor> processor) { |
| std::lock_guard<std::mutex> lock(mutex_); |
| logger_->log_debug("Shutting down threads for processor %s/%s", processor->getName(), processor->getUUIDStr()); |
| |
| if (processor->getScheduledState() != core::RUNNING) { |
| logger_->log_warn("Cannot unschedule threads for processor %s because it is not running", processor->getName()); |
| return; |
| } |
| |
| thread_pool_.stopTasks(processor->getUUIDStr()); |
| |
| processor->clearActiveTask(); |
| |
| processor->setScheduledState(core::STOPPED); |
| |
| processors_running_.erase(processor->getUUIDStr()); |
| } |
| |
| } /* namespace minifi */ |
| } /* namespace nifi */ |
| } /* namespace apache */ |
| } /* namespace org */ |