| /** |
| * 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. |
| */ |
| |
| package org.apache.tez.dag.app.rm; |
| |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.PriorityBlockingQueue; |
| import java.util.concurrent.TimeUnit; |
| import java.util.HashMap; |
| import java.util.LinkedHashMap; |
| |
| import com.google.common.primitives.Ints; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.yarn.api.records.ApplicationAttemptId; |
| import org.apache.hadoop.yarn.api.records.Container; |
| import org.apache.hadoop.yarn.api.records.ContainerId; |
| import org.apache.hadoop.yarn.api.records.NodeId; |
| import org.apache.hadoop.yarn.api.records.Priority; |
| import org.apache.hadoop.yarn.api.records.Resource; |
| |
| import org.apache.tez.dag.api.TezConfiguration; |
| import org.apache.tez.dag.app.AppContext; |
| import org.apache.tez.dag.app.rm.container.ContainerSignatureMatcher; |
| |
| import com.google.common.util.concurrent.ThreadFactoryBuilder; |
| |
| public class LocalTaskSchedulerService extends TaskSchedulerService { |
| |
| private static final Log LOG = LogFactory.getLog(LocalTaskSchedulerService.class); |
| |
| final TaskSchedulerAppCallback realAppClient; |
| final TaskSchedulerAppCallback appClientDelegate; |
| final ContainerSignatureMatcher containerSignatureMatcher; |
| final PriorityBlockingQueue<TaskRequest> taskRequestQueue; |
| AsyncDelegateRequestHandler taskRequestHandler; |
| Thread asyncDelegateRequestThread; |
| final ExecutorService appCallbackExecutor; |
| |
| final HashMap<Object, Container> taskAllocations; |
| final String appHostName; |
| final int appHostPort; |
| final String appTrackingUrl; |
| final AppContext appContext; |
| |
| public LocalTaskSchedulerService(TaskSchedulerAppCallback appClient, |
| ContainerSignatureMatcher containerSignatureMatcher, String appHostName, |
| int appHostPort, String appTrackingUrl, AppContext appContext) { |
| super(LocalTaskSchedulerService.class.getName()); |
| this.realAppClient = appClient; |
| this.appCallbackExecutor = createAppCallbackExecutorService(); |
| this.containerSignatureMatcher = containerSignatureMatcher; |
| this.appClientDelegate = createAppCallbackDelegate(appClient); |
| this.appHostName = appHostName; |
| this.appHostPort = appHostPort; |
| this.appTrackingUrl = appTrackingUrl; |
| this.appContext = appContext; |
| taskRequestQueue = new PriorityBlockingQueue<TaskRequest>(); |
| taskAllocations = new LinkedHashMap<Object, Container>(); |
| } |
| |
| private ExecutorService createAppCallbackExecutorService() { |
| return Executors.newSingleThreadExecutor(new ThreadFactoryBuilder() |
| .setNameFormat("TaskSchedulerAppCaller #%d").setDaemon(true).build()); |
| } |
| |
| private TaskSchedulerAppCallback createAppCallbackDelegate( |
| TaskSchedulerAppCallback realAppClient) { |
| return new TaskSchedulerAppCallbackWrapper(realAppClient, |
| appCallbackExecutor); |
| } |
| |
| @Override |
| public Resource getAvailableResources() { |
| long memory = Runtime.getRuntime().freeMemory(); |
| int cores = Runtime.getRuntime().availableProcessors(); |
| return createResource(memory, cores); |
| } |
| |
| static Resource createResource(long runtimeMemory, int core) { |
| if (runtimeMemory < 0 || core < 0) { |
| throw new IllegalArgumentException("Negative Memory or Core provided!" |
| + "mem: "+runtimeMemory+" core:"+core); |
| } |
| return Resource.newInstance(Ints.checkedCast(runtimeMemory/(1024*1024)), core); |
| } |
| |
| @Override |
| public int getClusterNodeCount() { |
| return 1; |
| } |
| |
| @Override |
| public void resetMatchLocalityForAllHeldContainers() { |
| } |
| |
| @Override |
| public Resource getTotalResources() { |
| long memory = Runtime.getRuntime().maxMemory(); |
| int cores = Runtime.getRuntime().availableProcessors(); |
| return createResource(memory, cores); |
| } |
| |
| @Override |
| public void blacklistNode(NodeId nodeId) { |
| } |
| |
| @Override |
| public void unblacklistNode(NodeId nodeId) { |
| } |
| |
| @Override |
| public void allocateTask(Object task, Resource capability, String[] hosts, |
| String[] racks, Priority priority, Object containerSignature, |
| Object clientCookie) { |
| taskRequestHandler.addAllocateTaskRequest(task, capability, priority, clientCookie); |
| } |
| |
| @Override |
| public synchronized void allocateTask(Object task, Resource capability, |
| ContainerId containerId, Priority priority, Object containerSignature, |
| Object clientCookie) { |
| // in local mode every task is already container level local |
| taskRequestHandler.addAllocateTaskRequest(task, capability, priority, clientCookie); |
| } |
| |
| @Override |
| public boolean deallocateTask(Object task, boolean taskSucceeded) { |
| return taskRequestHandler.addDeallocateTaskRequest(task); |
| } |
| |
| @Override |
| public Object deallocateContainer(ContainerId containerId) { |
| return null; |
| } |
| |
| @Override |
| public void serviceInit(Configuration conf) { |
| taskRequestHandler = new AsyncDelegateRequestHandler(taskRequestQueue, |
| new LocalContainerFactory(appContext), |
| taskAllocations, |
| appClientDelegate, |
| conf); |
| asyncDelegateRequestThread = new Thread(taskRequestHandler); |
| } |
| |
| @Override |
| public void serviceStart() { |
| asyncDelegateRequestThread.start(); |
| } |
| |
| @Override |
| public void serviceStop() throws InterruptedException { |
| if (asyncDelegateRequestThread != null) { |
| asyncDelegateRequestThread.interrupt(); |
| } |
| appCallbackExecutor.shutdownNow(); |
| appCallbackExecutor.awaitTermination(1000l, TimeUnit.MILLISECONDS); |
| } |
| |
| @Override |
| public void setShouldUnregister() { |
| } |
| |
| @Override |
| public boolean hasUnregistered() { |
| // Should always return true as no multiple attempts in local mode |
| return true; |
| } |
| |
| static class LocalContainerFactory { |
| final AppContext appContext; |
| AtomicInteger nextId; |
| |
| public LocalContainerFactory(AppContext appContext) { |
| this.appContext = appContext; |
| this.nextId = new AtomicInteger(1); |
| } |
| |
| public Container createContainer(Resource capability, Priority priority) { |
| ApplicationAttemptId appAttemptId = appContext.getApplicationAttemptId(); |
| ContainerId containerId = ContainerId.newInstance(appAttemptId, nextId.getAndIncrement()); |
| NodeId nodeId = NodeId.newInstance("127.0.0.1", 0); |
| String nodeHttpAddress = "127.0.0.1:0"; |
| |
| Container container = Container.newInstance(containerId, |
| nodeId, |
| nodeHttpAddress, |
| capability, |
| priority, |
| null); |
| |
| return container; |
| } |
| } |
| |
| static class TaskRequest implements Comparable<TaskRequest> { |
| // Higher prority than Priority.UNDEFINED |
| static final int HIGHEST_PRIORITY = -2; |
| Object task; |
| Priority priority; |
| |
| public TaskRequest(Object task, Priority priority) { |
| this.task = task; |
| this.priority = priority; |
| } |
| |
| @Override |
| public int compareTo(TaskRequest request) { |
| return request.priority.compareTo(this.priority); |
| } |
| } |
| |
| static class AllocateTaskRequest extends TaskRequest { |
| Resource capability; |
| Object clientCookie; |
| |
| public AllocateTaskRequest(Object task, Resource capability, Priority priority, |
| Object clientCookie) { |
| super(task, priority); |
| this.capability = capability; |
| this.clientCookie = clientCookie; |
| } |
| } |
| |
| static class DeallocateTaskRequest extends TaskRequest { |
| static final Priority DEALLOCATE_PRIORITY = Priority.newInstance(HIGHEST_PRIORITY); |
| |
| public DeallocateTaskRequest(Object task) { |
| super(task, DEALLOCATE_PRIORITY); |
| } |
| } |
| |
| static class AsyncDelegateRequestHandler implements Runnable { |
| final BlockingQueue<TaskRequest> taskRequestQueue; |
| final LocalContainerFactory localContainerFactory; |
| final HashMap<Object, Container> taskAllocations; |
| final TaskSchedulerAppCallback appClientDelegate; |
| final int MAX_TASKS; |
| |
| AsyncDelegateRequestHandler(BlockingQueue<TaskRequest> taskRequestQueue, |
| LocalContainerFactory localContainerFactory, |
| HashMap<Object, Container> taskAllocations, |
| TaskSchedulerAppCallback appClientDelegate, |
| Configuration conf) { |
| this.taskRequestQueue = taskRequestQueue; |
| this.localContainerFactory = localContainerFactory; |
| this.taskAllocations = taskAllocations; |
| this.appClientDelegate = appClientDelegate; |
| this.MAX_TASKS = conf.getInt(TezConfiguration.TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS, |
| TezConfiguration.TEZ_AM_INLINE_TASK_EXECUTION_MAX_TASKS_DEFAULT); |
| } |
| |
| public void addAllocateTaskRequest(Object task, Resource capability, Priority priority, |
| Object clientCookie) { |
| try { |
| taskRequestQueue.put(new AllocateTaskRequest(task, capability, priority, clientCookie)); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| |
| public boolean addDeallocateTaskRequest(Object task) { |
| try { |
| taskRequestQueue.put(new DeallocateTaskRequest(task)); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| synchronized(taskRequestQueue) { |
| taskRequestQueue.notify(); |
| } |
| return true; |
| } |
| |
| boolean shouldWait() { |
| return taskAllocations.size() >= MAX_TASKS; |
| } |
| |
| @Override |
| public void run() { |
| while(true) { |
| synchronized(taskRequestQueue) { |
| try { |
| if (shouldWait()) { |
| taskRequestQueue.wait(); |
| } |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| processRequest(); |
| } |
| } |
| |
| void processRequest() { |
| try { |
| TaskRequest request = taskRequestQueue.take(); |
| if (request instanceof AllocateTaskRequest) { |
| allocateTask((AllocateTaskRequest)request); |
| } |
| else if (request instanceof DeallocateTaskRequest) { |
| deallocateTask((DeallocateTaskRequest)request); |
| } |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } catch (NullPointerException e) { |
| LOG.warn("Task request was badly constructed"); |
| } |
| } |
| |
| void allocateTask(AllocateTaskRequest request) { |
| Container container = localContainerFactory.createContainer(request.capability, |
| request.priority); |
| taskAllocations.put(request.task, container); |
| appClientDelegate.taskAllocated(request.task, request.clientCookie, container); |
| } |
| |
| void deallocateTask(DeallocateTaskRequest request) { |
| Container container = taskAllocations.remove(request.task); |
| if (container != null) { |
| appClientDelegate.containerBeingReleased(container.getId()); |
| } |
| else { |
| LOG.warn("Unable to find and remove task " + request.task + " from task allocations"); |
| } |
| } |
| } |
| } |