/
DAGImpl.java
2589 lines (2338 loc) · 94.8 KB
/
DAGImpl.java
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/**
* 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.dag.impl;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.net.URL;
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.apache.tez.Utils;
import org.apache.tez.common.GuavaShim;
import org.apache.tez.common.ProgressHelper;
import org.apache.tez.common.TezUtilsInternal;
import org.apache.tez.common.counters.LimitExceededException;
import org.apache.tez.dag.app.dag.event.DAGEventTerminateDag;
import org.apache.tez.dag.app.dag.event.DiagnosableEvent;
import org.apache.tez.runtime.library.common.shuffle.ShuffleUtils;
import org.apache.tez.state.OnStateChangedCallback;
import org.apache.tez.state.StateMachineTez;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.yarn.api.ApplicationConstants;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.LocalResource;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.state.InvalidStateTransitonException;
import org.apache.hadoop.yarn.state.MultipleArcTransition;
import org.apache.hadoop.yarn.state.SingleArcTransition;
import org.apache.hadoop.yarn.state.StateMachine;
import org.apache.hadoop.yarn.state.StateMachineFactory;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.tez.common.ATSConstants;
import org.apache.tez.common.ReflectionUtils;
import org.apache.tez.common.TezCommonUtils;
import org.apache.tez.common.counters.AggregateTezCounters;
import org.apache.tez.common.counters.DAGCounter;
import org.apache.tez.common.counters.TezCounters;
import org.apache.tez.dag.api.DagTypeConverters;
import org.apache.tez.dag.api.EdgeProperty;
import org.apache.tez.dag.api.InputDescriptor;
import org.apache.tez.dag.api.Scope;
import org.apache.tez.dag.api.TezConfiguration;
import org.apache.tez.dag.api.TezException;
import org.apache.tez.dag.api.TezUncheckedException;
import org.apache.tez.dag.api.VertexLocationHint;
import org.apache.tez.dag.api.client.DAGStatusBuilder;
import org.apache.tez.dag.api.client.ProgressBuilder;
import org.apache.tez.dag.api.client.StatusGetOpts;
import org.apache.tez.dag.api.client.VertexStatus;
import org.apache.tez.dag.api.client.VertexStatusBuilder;
import org.apache.tez.dag.api.records.DAGProtos.DAGPlan;
import org.apache.tez.dag.api.records.DAGProtos.EdgePlan;
import org.apache.tez.dag.api.records.DAGProtos.PlanGroupInputEdgeInfo;
import org.apache.tez.dag.api.records.DAGProtos.PlanKeyValuePair;
import org.apache.tez.dag.api.records.DAGProtos.PlanVertexGroupInfo;
import org.apache.tez.dag.api.records.DAGProtos.VertexPlan;
import org.apache.tez.dag.app.AppContext;
import org.apache.tez.dag.app.RecoveryParser.VertexRecoveryData;
import org.apache.tez.dag.app.TaskCommunicatorManagerInterface;
import org.apache.tez.dag.app.RecoveryParser.DAGRecoveryData;
import org.apache.tez.dag.app.TaskHeartbeatHandler;
import org.apache.tez.dag.app.dag.DAG;
import org.apache.tez.dag.app.dag.DAGReport;
import org.apache.tez.dag.app.dag.DAGScheduler;
import org.apache.tez.dag.app.dag.DAGState;
import org.apache.tez.dag.app.dag.DAGTerminationCause;
import org.apache.tez.dag.app.dag.StateChangeNotifier;
import org.apache.tez.dag.app.dag.Vertex;
import org.apache.tez.dag.app.dag.VertexState;
import org.apache.tez.dag.app.dag.VertexTerminationCause;
import org.apache.tez.dag.app.dag.event.CallableEvent;
import org.apache.tez.dag.app.dag.event.DAGAppMasterEventDAGFinished;
import org.apache.tez.dag.app.dag.event.DAGEvent;
import org.apache.tez.dag.app.dag.event.DAGEventCommitCompleted;
import org.apache.tez.dag.app.dag.event.DAGEventCounterUpdate;
import org.apache.tez.dag.app.dag.event.DAGEventDiagnosticsUpdate;
import org.apache.tez.dag.app.dag.event.DAGEventRecoverEvent;
import org.apache.tez.dag.app.dag.event.DAGEventSchedulerUpdate;
import org.apache.tez.dag.app.dag.event.DAGEventStartDag;
import org.apache.tez.dag.app.dag.event.DAGEventType;
import org.apache.tez.dag.app.dag.event.DAGEventVertexCompleted;
import org.apache.tez.dag.app.dag.event.DAGEventVertexReRunning;
import org.apache.tez.dag.app.dag.event.VertexEvent;
import org.apache.tez.dag.app.dag.event.VertexEventRecoverVertex;
import org.apache.tez.dag.app.dag.event.VertexEventTermination;
import org.apache.tez.dag.app.dag.event.VertexEventType;
import org.apache.tez.common.security.ACLManager;
import org.apache.tez.dag.history.DAGHistoryEvent;
import org.apache.tez.dag.history.events.DAGCommitStartedEvent;
import org.apache.tez.dag.history.events.DAGFinishedEvent;
import org.apache.tez.dag.history.events.DAGInitializedEvent;
import org.apache.tez.dag.history.events.DAGStartedEvent;
import org.apache.tez.dag.history.events.VertexFinishedEvent;
import org.apache.tez.dag.history.events.VertexGroupCommitFinishedEvent;
import org.apache.tez.dag.history.events.VertexGroupCommitStartedEvent;
import org.apache.tez.dag.records.TezDAGID;
import org.apache.tez.dag.records.TezTaskAttemptID;
import org.apache.tez.dag.records.TezTaskID;
import org.apache.tez.dag.records.TezVertexID;
import org.apache.tez.dag.utils.TaskSpecificLaunchCmdOption;
import org.apache.tez.dag.utils.RelocalizationUtils;
import org.apache.tez.dag.utils.TezBuilderUtils;
import org.apache.tez.runtime.api.OutputCommitter;
import com.google.common.annotations.VisibleForTesting;
import org.apache.tez.common.Preconditions;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
/** Implementation of Job interface. Maintains the state machines of Job.
* The read and write calls use ReadWriteLock for concurrency.
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public class DAGImpl implements org.apache.tez.dag.app.dag.DAG,
EventHandler<DAGEvent> {
private static final Logger LOG = LoggerFactory.getLogger(DAGImpl.class);
private static final String LINE_SEPARATOR = System
.getProperty("line.separator");
//final fields
private final TezDAGID dagId;
private final Clock clock;
// TODO Recovery
//private final List<AMInfo> amInfos;
private final Lock dagStatusLock = new ReentrantLock();
private final Condition dagStateChangedCondition = dagStatusLock.newCondition();
private final AtomicBoolean isFinalState = new AtomicBoolean(false);
private final AtomicBoolean runningStatusYetToBeConsumed = new AtomicBoolean(false);
private final Lock readLock;
private final Lock writeLock;
private final String dagName;
private final TaskCommunicatorManagerInterface taskCommunicatorManagerInterface;
private final TaskHeartbeatHandler taskHeartbeatHandler;
private final Object tasksSyncHandle = new Object();
private AtomicBoolean committed = new AtomicBoolean(false);
private AtomicBoolean aborted = new AtomicBoolean(false);
private AtomicBoolean commitCanceled = new AtomicBoolean(false);
boolean commitAllOutputsOnSuccess = true;
@VisibleForTesting
DAGScheduler dagScheduler;
private final EventHandler eventHandler;
// TODO Metrics
//private final MRAppMetrics metrics;
private final String userName;
private final AppContext appContext;
private final UserGroupInformation dagUGI;
private final ACLManager aclManager;
private final org.apache.tez.dag.api.Vertex.VertexExecutionContext defaultExecutionContext;
@VisibleForTesting
StateChangeNotifier entityUpdateTracker;
volatile Map<TezVertexID, Vertex> vertices = new HashMap<TezVertexID, Vertex>();
@VisibleForTesting
Map<String, Edge> edges = new HashMap<String, Edge>();
ArrayList<BitSet> vertexDescendants;
private TezCounters dagCounters = new TezCounters();
private Object fullCountersLock = new Object();
@VisibleForTesting
TezCounters fullCounters = null;
private TezCounters cachedCounters = null;
private long cachedCountersTimestamp = 0;
private Set<TezVertexID> reRunningVertices = new HashSet<TezVertexID>();
// Combined configs for the DAG
private final Configuration dagConf;
// DAG specific configs only
// Useful when trying to serialize only the diff from global configs
private final Configuration dagOnlyConf;
private final DAGPlan jobPlan;
private final AtomicBoolean internalErrorTriggered = new AtomicBoolean(false);
Map<String, LocalResource> localResources;
long startDAGCpuTime = 0;
long startDAGGCTime = 0;
private final List<String> diagnostics = new ArrayList<String>();
private TaskSpecificLaunchCmdOption taskSpecificLaunchCmdOption;
private static final DagStateChangedCallback STATE_CHANGED_CALLBACK = new DagStateChangedCallback();
private String[] logDirs;
@VisibleForTesting
Map<OutputKey, ListenableFuture<Void>> commitFutures
= new HashMap<OutputKey, ListenableFuture<Void>>();
private static final DiagnosticsUpdateTransition
DIAGNOSTIC_UPDATE_TRANSITION = new DiagnosticsUpdateTransition();
private static final InternalErrorTransition
INTERNAL_ERROR_TRANSITION = new InternalErrorTransition();
private static final CounterUpdateTransition COUNTER_UPDATE_TRANSITION =
new CounterUpdateTransition();
private static final DAGSchedulerUpdateTransition
DAG_SCHEDULER_UPDATE_TRANSITION = new DAGSchedulerUpdateTransition();
private static final CommitCompletedTransition COMMIT_COMPLETED_TRANSITION =
new CommitCompletedTransition();
private final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
private final Set<ContainerId> containersUsedByCurrentDAG = new HashSet<>();
protected static final
StateMachineFactory<DAGImpl, DAGState, DAGEventType, DAGEvent>
stateMachineFactory
= new StateMachineFactory<DAGImpl, DAGState, DAGEventType, DAGEvent>
(DAGState.NEW)
// Transitions from NEW state
.addTransition(DAGState.NEW, DAGState.NEW,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
// either recovered to FINISHED state or recovered to NEW to rerun the dag based on the recovery data
.addTransition(DAGState.NEW,
EnumSet.of(DAGState.NEW, DAGState.SUCCEEDED,
DAGState.FAILED, DAGState.KILLED,
DAGState.ERROR),
DAGEventType.DAG_RECOVER,
new RecoverTransition())
.addTransition(DAGState.NEW, DAGState.NEW,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition
(DAGState.NEW,
EnumSet.of(DAGState.INITED, DAGState.FAILED),
DAGEventType.DAG_INIT,
new InitTransition())
.addTransition(DAGState.NEW, EnumSet.of(DAGState.KILLED, DAGState.FAILED),
DAGEventType.DAG_TERMINATE,
new KillNewJobTransition())
.addTransition(DAGState.NEW, DAGState.ERROR,
DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Transitions from INITED state
.addTransition(DAGState.INITED, DAGState.INITED,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.INITED, DAGState.INITED,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition(DAGState.INITED, DAGState.RUNNING,
DAGEventType.DAG_START,
new StartTransition())
.addTransition(DAGState.INITED, EnumSet.of(DAGState.KILLED, DAGState.FAILED),
DAGEventType.DAG_TERMINATE,
new KillInitedJobTransition())
.addTransition(DAGState.INITED, DAGState.ERROR,
DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Transitions from RUNNING state
.addTransition
(DAGState.RUNNING,
EnumSet.of(DAGState.RUNNING, DAGState.COMMITTING,
DAGState.SUCCEEDED, DAGState.TERMINATING,DAGState.FAILED),
DAGEventType.DAG_VERTEX_COMPLETED,
new VertexCompletedTransition())
.addTransition(DAGState.RUNNING, EnumSet.of(DAGState.RUNNING, DAGState.TERMINATING),
DAGEventType.DAG_VERTEX_RERUNNING,
new VertexReRunningTransition())
.addTransition(DAGState.RUNNING, DAGState.TERMINATING,
DAGEventType.DAG_TERMINATE, new DAGKilledTransition())
.addTransition(DAGState.RUNNING, DAGState.RUNNING,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.RUNNING, DAGState.RUNNING,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition(DAGState.RUNNING, DAGState.RUNNING,
DAGEventType.DAG_SCHEDULER_UPDATE,
DAG_SCHEDULER_UPDATE_TRANSITION)
.addTransition(
DAGState.RUNNING,
DAGState.ERROR, DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
.addTransition(DAGState.RUNNING,
EnumSet.of(DAGState.RUNNING, DAGState.TERMINATING),
DAGEventType.DAG_COMMIT_COMPLETED,
new CommitCompletedWhileRunning())
// Transitions from COMMITTING state.
.addTransition(DAGState.COMMITTING,
EnumSet.of(DAGState.COMMITTING, DAGState.TERMINATING, DAGState.FAILED, DAGState.SUCCEEDED),
DAGEventType.DAG_COMMIT_COMPLETED,
COMMIT_COMPLETED_TRANSITION)
.addTransition(DAGState.COMMITTING, DAGState.TERMINATING,
DAGEventType.DAG_TERMINATE,
new DAGKilledWhileCommittingTransition())
.addTransition(
DAGState.COMMITTING,
DAGState.ERROR,
DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
.addTransition(DAGState.COMMITTING, DAGState.COMMITTING,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.COMMITTING, DAGState.COMMITTING,
DAGEventType.DAG_SCHEDULER_UPDATE,
DAG_SCHEDULER_UPDATE_TRANSITION)
.addTransition(DAGState.COMMITTING, DAGState.TERMINATING,
DAGEventType.DAG_VERTEX_RERUNNING,
new VertexRerunWhileCommitting())
.addTransition(DAGState.COMMITTING, DAGState.COMMITTING,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
// Transitions from TERMINATING state.
.addTransition
(DAGState.TERMINATING,
EnumSet.of(DAGState.TERMINATING, DAGState.KILLED, DAGState.FAILED,
DAGState.ERROR),
DAGEventType.DAG_VERTEX_COMPLETED,
new VertexCompletedTransition())
.addTransition(DAGState.TERMINATING, DAGState.TERMINATING,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.TERMINATING, DAGState.TERMINATING,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition(
DAGState.TERMINATING,
DAGState.ERROR, DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
.addTransition(
DAGState.TERMINATING,
EnumSet.of(DAGState.TERMINATING, DAGState.FAILED, DAGState.KILLED, DAGState.ERROR),
DAGEventType.DAG_COMMIT_COMPLETED,
COMMIT_COMPLETED_TRANSITION)
// Ignore-able events
.addTransition(DAGState.TERMINATING, DAGState.TERMINATING,
EnumSet.of(DAGEventType.DAG_TERMINATE,
DAGEventType.DAG_VERTEX_RERUNNING,
DAGEventType.DAG_SCHEDULER_UPDATE))
// Transitions from SUCCEEDED state
.addTransition(DAGState.SUCCEEDED, DAGState.SUCCEEDED,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.SUCCEEDED, DAGState.SUCCEEDED,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition(
DAGState.SUCCEEDED,
DAGState.ERROR, DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(DAGState.SUCCEEDED, DAGState.SUCCEEDED,
EnumSet.of(DAGEventType.DAG_TERMINATE,
DAGEventType.DAG_SCHEDULER_UPDATE,
DAGEventType.DAG_VERTEX_COMPLETED))
// Transitions from FAILED state
.addTransition(DAGState.FAILED, DAGState.FAILED,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.FAILED, DAGState.FAILED,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition(
DAGState.FAILED,
DAGState.ERROR, DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(DAGState.FAILED, DAGState.FAILED,
EnumSet.of(DAGEventType.DAG_TERMINATE,
DAGEventType.DAG_START,
DAGEventType.DAG_VERTEX_RERUNNING,
DAGEventType.DAG_SCHEDULER_UPDATE,
DAGEventType.DAG_VERTEX_COMPLETED))
// Transitions from KILLED state
.addTransition(DAGState.KILLED, DAGState.KILLED,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DIAGNOSTIC_UPDATE_TRANSITION)
.addTransition(DAGState.KILLED, DAGState.KILLED,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
.addTransition(
DAGState.KILLED,
DAGState.ERROR, DAGEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(DAGState.KILLED, DAGState.KILLED,
EnumSet.of(DAGEventType.DAG_TERMINATE,
DAGEventType.DAG_START,
DAGEventType.DAG_VERTEX_RERUNNING,
DAGEventType.DAG_SCHEDULER_UPDATE,
DAGEventType.DAG_VERTEX_COMPLETED))
// No transitions from INTERNAL_ERROR state. Ignore all.
.addTransition(
DAGState.ERROR,
DAGState.ERROR,
EnumSet.of(
DAGEventType.DAG_TERMINATE,
DAGEventType.DAG_INIT,
DAGEventType.DAG_START,
DAGEventType.DAG_VERTEX_COMPLETED,
DAGEventType.DAG_VERTEX_RERUNNING,
DAGEventType.DAG_SCHEDULER_UPDATE,
DAGEventType.DAG_DIAGNOSTIC_UPDATE,
DAGEventType.INTERNAL_ERROR,
DAGEventType.DAG_COUNTER_UPDATE))
.addTransition(DAGState.ERROR, DAGState.ERROR,
DAGEventType.DAG_COUNTER_UPDATE, COUNTER_UPDATE_TRANSITION)
// create the topology tables
.installTopology();
private final StateMachineTez<DAGState, DAGEventType, DAGEvent, DAGImpl> stateMachine;
//changing fields while the job is running
@VisibleForTesting
int numCompletedVertices = 0;
private int numVertices;
private int numSuccessfulVertices = 0;
private int numFailedVertices = 0;
private int numKilledVertices = 0;
private boolean isUber = false;
private DAGTerminationCause terminationCause;
private Credentials credentials;
@VisibleForTesting
long initTime;
@VisibleForTesting
long startTime;
@VisibleForTesting
long finishTime;
Map<String, VertexGroupInfo> vertexGroups = Maps.newHashMap();
Map<String, List<VertexGroupInfo>> vertexGroupInfo = Maps.newHashMap();
private DAGRecoveryData recoveryData;
static class VertexGroupInfo {
String groupName;
Set<String> groupMembers;
Set<String> outputs;
Map<String, InputDescriptor> edgeMergedInputs;
int successfulMembers;
int successfulCommits;
boolean commitStarted;
VertexGroupInfo(PlanVertexGroupInfo groupInfo) {
groupName = groupInfo.getGroupName();
groupMembers = Sets.newHashSet(groupInfo.getGroupMembersList());
edgeMergedInputs = Maps.newHashMapWithExpectedSize(groupInfo.getEdgeMergedInputsCount());
for (PlanGroupInputEdgeInfo edgInfo : groupInfo.getEdgeMergedInputsList()) {
edgeMergedInputs.put(edgInfo.getDestVertexName(),
DagTypeConverters.convertInputDescriptorFromDAGPlan(edgInfo.getMergedInput()));
}
outputs = Sets.newHashSet(groupInfo.getOutputsList());
successfulMembers = 0;
successfulCommits = 0;
commitStarted = false;
}
public boolean isInCommitting() {
return commitStarted && successfulCommits < outputs.size();
}
public boolean isCommitted() {
return commitStarted && successfulCommits == outputs.size();
}
}
public DAGImpl(TezDAGID dagId,
Configuration amConf,
DAGPlan jobPlan,
EventHandler eventHandler,
TaskCommunicatorManagerInterface taskCommunicatorManagerInterface,
Credentials dagCredentials,
Clock clock,
String appUserName,
TaskHeartbeatHandler thh,
AppContext appContext) {
this.dagId = dagId;
this.jobPlan = jobPlan;
this.dagConf = new Configuration(amConf);
this.dagOnlyConf = new Configuration(false);
Iterator<PlanKeyValuePair> iter =
jobPlan.getDagConf().getConfKeyValuesList().iterator();
// override the amConf by using DAG level configuration
while (iter.hasNext()) {
PlanKeyValuePair keyValPair = iter.next();
TezConfiguration.validateProperty(keyValPair.getKey(), Scope.DAG);
this.dagConf.set(keyValPair.getKey(), keyValPair.getValue());
this.dagOnlyConf.set(keyValPair.getKey(), keyValPair.getValue());
}
this.dagName = (jobPlan.getName() != null) ? jobPlan.getName() : "<missing app name>";
this.userName = appUserName;
this.clock = clock;
this.appContext = appContext;
this.taskCommunicatorManagerInterface = taskCommunicatorManagerInterface;
this.taskHeartbeatHandler = thh;
this.eventHandler = eventHandler;
ReadWriteLock readWriteLock = new ReentrantReadWriteLock();
this.readLock = readWriteLock.readLock();
this.writeLock = readWriteLock.writeLock();
this.localResources = DagTypeConverters.createLocalResourceMapFromDAGPlan(jobPlan
.getLocalResourceList());
this.credentials = dagCredentials;
if (this.credentials == null) {
try {
dagUGI = UserGroupInformation.getCurrentUser();
} catch (IOException e) {
throw new TezUncheckedException("Failed to set UGI for dag based on currentUser", e);
}
} else {
dagUGI = UserGroupInformation.createRemoteUser(this.userName);
dagUGI.addCredentials(this.credentials);
}
this.aclManager = new ACLManager(appContext.getAMACLManager(), dagUGI.getShortUserName(),
this.jobPlan.getAclInfo());
// this is only for recovery in case it does not call the init transition
this.startDAGCpuTime = appContext.getCumulativeCPUTime();
this.startDAGGCTime = appContext.getCumulativeGCTime();
if (jobPlan.hasDefaultExecutionContext()) {
defaultExecutionContext = DagTypeConverters.convertFromProto(jobPlan.getDefaultExecutionContext());
} else {
defaultExecutionContext = null;
}
this.taskSpecificLaunchCmdOption = new TaskSpecificLaunchCmdOption(dagConf);
// This "this leak" is okay because the retained pointer is in an
// instance variable.
stateMachine = new StateMachineTez<DAGState, DAGEventType, DAGEvent, DAGImpl>(
stateMachineFactory.make(this), this);
augmentStateMachine();
this.entityUpdateTracker = new StateChangeNotifier(this);
}
private void augmentStateMachine() {
stateMachine
.registerStateEnteredCallback(DAGState.RUNNING,
STATE_CHANGED_CALLBACK)
.registerStateEnteredCallback(DAGState.SUCCEEDED,
STATE_CHANGED_CALLBACK)
.registerStateEnteredCallback(DAGState.FAILED,
STATE_CHANGED_CALLBACK)
.registerStateEnteredCallback(DAGState.KILLED,
STATE_CHANGED_CALLBACK)
.registerStateEnteredCallback(DAGState.ERROR,
STATE_CHANGED_CALLBACK);
}
private static class DagStateChangedCallback
implements OnStateChangedCallback<DAGState, DAGImpl> {
@Override
public void onStateChanged(DAGImpl dag, DAGState dagState) {
switch(dagState) {
case RUNNING:
dag.runningStatusYetToBeConsumed.set(true);
break;
case SUCCEEDED:
case FAILED:
case KILLED:
case ERROR:
dag.isFinalState.set(true);
break;
default:
break;
}
dag.dagStatusLock.lock();
try {
dag.dagStateChangedCondition.signal();
} finally {
dag.dagStatusLock.unlock();
}
}
}
protected StateMachine<DAGState, DAGEventType, DAGEvent> getStateMachine() {
return stateMachine;
}
@Override
public TezDAGID getID() {
return dagId;
}
@Override
public Map<String, LocalResource> getLocalResources() {
return localResources;
}
// TODO maybe removed after TEZ-74
@Override
public Configuration getConf() {
return dagConf;
}
@Override
public DAGPlan getJobPlan() {
return jobPlan;
}
@Override
public EventHandler getEventHandler() {
return this.eventHandler;
}
@Override
public Vertex getVertex(TezVertexID vertexID) {
readLock.lock();
try {
return vertices.get(vertexID);
} finally {
readLock.unlock();
}
}
@Override
public boolean isUber() {
return isUber;
}
@Override
public Credentials getCredentials() {
return this.credentials;
}
@Override
public UserGroupInformation getDagUGI() {
return this.dagUGI;
}
@Override
public ACLManager getACLManager() {
return this.aclManager;
}
@Override
public Map<String, TezVertexID> getVertexNameIDMapping() {
this.readLock.lock();
try {
Map<String, TezVertexID> idNameMap = new HashMap<String, TezVertexID>();
for (Vertex v : getVertices().values()) {
idNameMap.put(v.getName(), v.getVertexId());
}
return idNameMap;
} finally {
this.readLock.unlock();
}
}
@Override
public long getStartTime() {
readLock.lock();
try {
return this.startTime;
} finally {
readLock.unlock();
}
}
@Override
public StateChangeNotifier getStateChangeNotifier() {
return entityUpdateTracker;
}
@Override
public org.apache.tez.dag.api.Vertex.VertexExecutionContext getDefaultExecutionContext() {
return defaultExecutionContext;
}
@Override
public TezCounters getAllCounters() {
readLock.lock();
try {
DAGState state = getInternalState();
if (state == DAGState.ERROR || state == DAGState.FAILED
|| state == DAGState.KILLED || state == DAGState.SUCCEEDED) {
this.mayBeConstructFinalFullCounters();
return fullCounters;
}
// dag not yet finished. update cpu time counters
updateCpuCounters();
TezCounters counters = new TezCounters();
counters.incrAllCounters(dagCounters);
return aggrTaskCounters(counters, vertices.values());
} finally {
readLock.unlock();
}
}
@Override
public TezCounters getCachedCounters() {
readLock.lock();
try {
// FIXME a better lightweight approach for counters is needed
if (fullCounters == null && cachedCounters != null
&& ((cachedCountersTimestamp+10000) > System.currentTimeMillis())) {
LOG.info("Asked for counters"
+ ", cachedCountersTimestamp=" + cachedCountersTimestamp
+ ", currentTime=" + System.currentTimeMillis());
return cachedCounters;
}
cachedCountersTimestamp = System.currentTimeMillis();
if (inTerminalState()) {
this.mayBeConstructFinalFullCounters();
return fullCounters;
}
// dag not yet finished. update cpu time counters
updateCpuCounters();
TezCounters counters = new TezCounters();
counters.incrAllCounters(dagCounters);
return aggrTaskCounters(counters, vertices.values());
} finally {
readLock.unlock();
}
}
boolean inTerminalState() {
DAGState state = getInternalState();
if (state == DAGState.ERROR || state == DAGState.FAILED
|| state == DAGState.KILLED || state == DAGState.SUCCEEDED) {
return true;
}
return false;
}
public static TezCounters aggrTaskCounters(
TezCounters counters, Collection<Vertex> vertices) {
for (Vertex vertex : vertices) {
counters.aggrAllCounters(vertex.getAllCounters());
}
return counters;
}
@Override
public List<String> getDiagnostics() {
readLock.lock();
try {
return diagnostics;
} finally {
readLock.unlock();
}
}
@Override
public DAGReport getReport() {
readLock.lock();
try {
StringBuilder diagsb = new StringBuilder();
for (String s : getDiagnostics()) {
diagsb.append(s).append("\n");
}
if (getInternalState() == DAGState.NEW) {
/*
return MRBuilderUtils.newJobReport(dagId, dagName, username, state,
appSubmitTime, startTime, finishTime, setupProgress, 0.0f, 0.0f,
cleanupProgress, jobFile, amInfos, isUber, diagsb.toString());
*/
// TODO
return TezBuilderUtils.newDAGReport();
}
// TODO
return TezBuilderUtils.newDAGReport();
/*
return MRBuilderUtils.newJobReport(dagId, dagName, username, state,
appSubmitTime, startTime, finishTime, setupProgress,
this.mapProgress, this.reduceProgress,
cleanupProgress, jobFile, amInfos, isUber, diagsb.toString());
*/
} finally {
readLock.unlock();
}
}
@Override
public float getProgress() {
this.readLock.lock();
try {
float accProg = 0.0f;
float dagProgress = 0.0f;
int verticesCount = getVertices().size();
for (Vertex v : getVertices().values()) {
float vertexProgress = v.getProgress();
if (LOG.isDebugEnabled()) {
if (!ProgressHelper.isProgressWithinRange(vertexProgress)) {
LOG.debug("progress update: Vertex progress is invalid range"
+ "; v={}, progress={}", v.getName(), vertexProgress);
}
}
accProg += ProgressHelper.processProgress(vertexProgress);
}
if (LOG.isDebugEnabled()) {
if (verticesCount == 0) {
LOG.debug("progress update: DAGImpl getProgress() returns 0.0f: "
+ "vertices count is 0");
}
}
if (verticesCount > 0) {
dagProgress =
ProgressHelper.processProgress(accProg / verticesCount);
}
return dagProgress;
} finally {
this.readLock.unlock();
}
}
@Override
public float getCompletedTaskProgress() {
this.readLock.lock();
try {
int totalTasks = 0;
int completedTasks = 0;
for (Vertex v : getVertices().values()) {
int vTotalTasks = v.getTotalTasks();
int vCompletedTasks = v.getSucceededTasks();
if (vTotalTasks > 0) {
totalTasks += vTotalTasks;
completedTasks += vCompletedTasks;
}
}
if (totalTasks == 0) {
DAGState state = getStateMachine().getCurrentState();
if (state == DAGState.ERROR || state == DAGState.FAILED
|| state == DAGState.KILLED || state == DAGState.SUCCEEDED) {
return 1.0f;
} else {
return 0.0f;
}
}
return ((float)completedTasks/totalTasks);
} finally {
this.readLock.unlock();
}
}
@Override
public Map<TezVertexID, Vertex> getVertices() {
synchronized (tasksSyncHandle) {
return Collections.unmodifiableMap(vertices);
}
}
@Override
public DAGState getState() {
readLock.lock();
try {
return getStateMachine().getCurrentState();
} finally {
readLock.unlock();
}
}
// monitoring apis
@Override
public DAGStatusBuilder getDAGStatus(Set<StatusGetOpts> statusOptions) {
DAGStatusBuilder status = new DAGStatusBuilder();
int totalTaskCount = 0;
int totalSucceededTaskCount = 0;
int totalRunningTaskCount = 0;
int totalFailedTaskCount = 0;
int totalKilledTaskCount = 0;
int totalFailedTaskAttemptCount = 0;
int totalKilledTaskAttemptCount = 0;
int totalRejectedTaskAttemptCount = 0;
readLock.lock();
try {
for(Map.Entry<String, Vertex> entry : vertexMap.entrySet()) {
ProgressBuilder progress = entry.getValue().getVertexProgress();
status.addVertexProgress(entry.getKey(), progress);
totalTaskCount += progress.getTotalTaskCount();
totalSucceededTaskCount += progress.getSucceededTaskCount();
totalRunningTaskCount += progress.getRunningTaskCount();
totalFailedTaskCount += progress.getFailedTaskCount();
totalKilledTaskCount += progress.getKilledTaskCount();
totalFailedTaskAttemptCount += progress.getFailedTaskAttemptCount();
totalKilledTaskAttemptCount += progress.getKilledTaskAttemptCount();
totalRejectedTaskAttemptCount += progress.getRejectedTaskAttemptCount();
}
ProgressBuilder dagProgress = new ProgressBuilder();
dagProgress.setTotalTaskCount(totalTaskCount);
dagProgress.setSucceededTaskCount(totalSucceededTaskCount);
dagProgress.setRunningTaskCount(totalRunningTaskCount);
dagProgress.setFailedTaskCount(totalFailedTaskCount);
dagProgress.setKilledTaskCount(totalKilledTaskCount);
dagProgress.setFailedTaskAttemptCount(totalFailedTaskAttemptCount);
dagProgress.setKilledTaskAttemptCount(totalKilledTaskAttemptCount);
dagProgress.setRejectedTaskAttemptCount(totalRejectedTaskAttemptCount);
status.setState(getState());
status.setDiagnostics(diagnostics);
status.setDAGProgress(dagProgress);
if (statusOptions.contains(StatusGetOpts.GET_COUNTERS)) {
status.setDAGCounters(getAllCounters());
}
if (statusOptions.contains(StatusGetOpts.GET_MEMORY_USAGE)) {
status.setMemoryUsage(memoryMXBean.getHeapMemoryUsage().getUsed(),
taskCommunicatorManagerInterface.getTotalUsedMemory());
}
return status;
} finally {
readLock.unlock();
}
}
public DAGStatusBuilder getDAGStatus(Set<StatusGetOpts> statusOptions,
long timeoutMillis) throws TezException {
long timeoutNanos = timeoutMillis * 1000l * 1000l;
if (timeoutMillis < 0) {
// Return only on SUCCESS
timeoutNanos = Long.MAX_VALUE;
}
if (timeoutMillis == 0 || isComplete()) {
return getDAGStatus(statusOptions);
}
while (true) {
long nanosLeft;
dagStatusLock.lock();
try {
// Check within the lock to ensure we don't end up waiting after the notify has happened
if (isFinalState.get()) {
break;
}
if (runningStatusYetToBeConsumed.compareAndSet(true, false)) {
// No need to wait further, as state just got changed to RUNNING
break;
}
nanosLeft = dagStateChangedCondition.awaitNanos(timeoutNanos);
} catch (InterruptedException e) {
throw new TezException("Interrupted while waiting for dag to complete", e);
} finally {
dagStatusLock.unlock();
}
if (nanosLeft <= 0) {
// Time expired.
break;
} else {
timeoutNanos = nanosLeft;
}
}
return getDAGStatus(statusOptions);
}
private ProgressBuilder getDAGProgress() {
int totalTaskCount = 0;
int totalSucceededTaskCount = 0;