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MAPREDUCE-3921. MR AM should act on node health status changes. Contributed by Bikas Saha.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1349065 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Siddharth Seth 2012-06-11 23:14:06 +00:00
parent 6e3ebf4d73
commit eff9fa1aad
16 changed files with 686 additions and 65 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -132,6 +132,9 @@ Branch-2 ( Unreleased changes )
MAPREDUCE-3871. Allow symlinking in LocalJobRunner DistributedCache.
(tomwhite)
MAPREDUCE-3921. MR AM should act on node health status changes.
(Bikas Saha via sseth)
OPTIMIZATIONS
BUG FIXES

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/TaskAttempt.java
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@ -25,6 +25,7 @@
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptReport;
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.NodeId;
/**
@ -54,6 +55,11 @@ public interface TaskAttempt {
*/
String getAssignedContainerMgrAddress();
/**
* @return node's id if a container is assigned, otherwise null.
*/
NodeId getNodeId();
/**
* @return node's http address if a container is assigned, otherwise null.
*/

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/event/JobEventType.java
View File

@ -44,5 +44,9 @@ public enum JobEventType {
JOB_COUNTER_UPDATE,
//Producer:TaskAttemptListener
JOB_TASK_ATTEMPT_FETCH_FAILURE
JOB_TASK_ATTEMPT_FETCH_FAILURE,
//Producer:RMContainerAllocator
JOB_UPDATED_NODES
}

40
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/event/JobUpdatedNodesEvent.java Normal file
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@ -0,0 +1,40 @@
/**
* 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.hadoop.mapreduce.v2.app.job.event;
import java.util.List;
import org.apache.hadoop.mapreduce.v2.api.records.JobId;
import org.apache.hadoop.yarn.api.records.NodeReport;
public class JobUpdatedNodesEvent extends JobEvent {
private final List<NodeReport> updatedNodes;
public JobUpdatedNodesEvent(JobId jobId, List<NodeReport> updatedNodes) {
super(jobId, JobEventType.JOB_UPDATED_NODES);
this.updatedNodes = updatedNodes;
}
public List<NodeReport> getUpdatedNodes() {
return updatedNodes;
}
}

37
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/event/TaskAttemptKillEvent.java Normal file
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@ -0,0 +1,37 @@
/**
* 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.hadoop.mapreduce.v2.app.job.event;
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
public class TaskAttemptKillEvent extends TaskAttemptEvent {
private final String message;
public TaskAttemptKillEvent(TaskAttemptId attemptID,
String message) {
super(attemptID, TaskAttemptEventType.TA_KILL);
this.message = message;
}
public String getMessage() {
return message;
}
}

106
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java
View File

@ -77,6 +77,7 @@
import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.TaskAttemptListener;
import org.apache.hadoop.mapreduce.v2.app.job.Task;
import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobCounterUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobDiagnosticsUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobEvent;
@ -85,8 +86,10 @@
import org.apache.hadoop.mapreduce.v2.app.job.event.JobTaskAttemptCompletedEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobTaskAttemptFetchFailureEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobTaskEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobUpdatedNodesEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptKillEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEventType;
import org.apache.hadoop.mapreduce.v2.app.metrics.MRAppMetrics;
@ -100,6 +103,9 @@
import org.apache.hadoop.yarn.Clock;
import org.apache.hadoop.yarn.YarnException;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.NodeState;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.state.InvalidStateTransitonException;
import org.apache.hadoop.yarn.state.MultipleArcTransition;
@ -148,6 +154,12 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
private final Object tasksSyncHandle = new Object();
private final Set<TaskId> mapTasks = new LinkedHashSet<TaskId>();
private final Set<TaskId> reduceTasks = new LinkedHashSet<TaskId>();
/**
* maps nodes to tasks that have run on those nodes
*/
private final HashMap<NodeId, List<TaskAttemptId>>
nodesToSucceededTaskAttempts = new HashMap<NodeId, List<TaskAttemptId>>();
private final EventHandler eventHandler;
private final MRAppMetrics metrics;
private final String userName;
@ -194,6 +206,8 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
new TaskAttemptCompletedEventTransition();
private static final CounterUpdateTransition COUNTER_UPDATE_TRANSITION =
new CounterUpdateTransition();
private static final UpdatedNodesTransition UPDATED_NODES_TRANSITION =
new UpdatedNodesTransition();
protected static final
StateMachineFactory<JobImpl, JobState, JobEventType, JobEvent>
@ -218,7 +232,10 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
.addTransition(JobState.NEW, JobState.ERROR,
JobEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(JobState.NEW, JobState.NEW,
JobEventType.JOB_UPDATED_NODES)
// Transitions from INITED state
.addTransition(JobState.INITED, JobState.INITED,
JobEventType.JOB_DIAGNOSTIC_UPDATE,
@ -234,7 +251,10 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
.addTransition(JobState.INITED, JobState.ERROR,
JobEventType.INTERNAL_ERROR,
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(JobState.INITED, JobState.INITED,
JobEventType.JOB_UPDATED_NODES)
// Transitions from RUNNING state
.addTransition(JobState.RUNNING, JobState.RUNNING,
JobEventType.JOB_TASK_ATTEMPT_COMPLETED,
@ -251,6 +271,9 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
new JobNoTasksCompletedTransition())
.addTransition(JobState.RUNNING, JobState.KILL_WAIT,
JobEventType.JOB_KILL, new KillTasksTransition())
.addTransition(JobState.RUNNING, JobState.RUNNING,
JobEventType.JOB_UPDATED_NODES,
UPDATED_NODES_TRANSITION)
.addTransition(JobState.RUNNING, JobState.RUNNING,
JobEventType.JOB_MAP_TASK_RESCHEDULED,
new MapTaskRescheduledTransition())
@ -288,8 +311,9 @@ JobEventType.JOB_KILL, new KillTasksTransition())
// Ignore-able events
.addTransition(JobState.KILL_WAIT, JobState.KILL_WAIT,
EnumSet.of(JobEventType.JOB_KILL,
JobEventType.JOB_MAP_TASK_RESCHEDULED,
JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE))
JobEventType.JOB_UPDATED_NODES,
JobEventType.JOB_MAP_TASK_RESCHEDULED,
JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE))
// Transitions from SUCCEEDED state
.addTransition(JobState.SUCCEEDED, JobState.SUCCEEDED,
@ -303,7 +327,8 @@ JobEventType.JOB_KILL, new KillTasksTransition())
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(JobState.SUCCEEDED, JobState.SUCCEEDED,
EnumSet.of(JobEventType.JOB_KILL,
EnumSet.of(JobEventType.JOB_KILL,
JobEventType.JOB_UPDATED_NODES,
JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE))
// Transitions from FAILED state
@ -318,7 +343,8 @@ JobEventType.JOB_KILL, new KillTasksTransition())
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(JobState.FAILED, JobState.FAILED,
EnumSet.of(JobEventType.JOB_KILL,
EnumSet.of(JobEventType.JOB_KILL,
JobEventType.JOB_UPDATED_NODES,
JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE))
// Transitions from KILLED state
@ -333,7 +359,8 @@ JobEventType.JOB_KILL, new KillTasksTransition())
INTERNAL_ERROR_TRANSITION)
// Ignore-able events
.addTransition(JobState.KILLED, JobState.KILLED,
EnumSet.of(JobEventType.JOB_KILL,
EnumSet.of(JobEventType.JOB_KILL,
JobEventType.JOB_UPDATED_NODES,
JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE))
// No transitions from INTERNAL_ERROR state. Ignore all.
@ -346,6 +373,7 @@ JobEventType.JOB_KILL, new KillTasksTransition())
JobEventType.JOB_TASK_ATTEMPT_COMPLETED,
JobEventType.JOB_MAP_TASK_RESCHEDULED,
JobEventType.JOB_DIAGNOSTIC_UPDATE,
JobEventType.JOB_UPDATED_NODES,
JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE,
JobEventType.INTERNAL_ERROR))
.addTransition(JobState.ERROR, JobState.ERROR,
@ -895,7 +923,7 @@ private void makeUberDecision(long dataInputLength) {
LOG.info(msg.toString());
}
}
/**
* ChainMapper and ChainReducer must execute in parallel, so they're not
* compatible with uberization/LocalContainerLauncher (100% sequential).
@ -924,6 +952,24 @@ private boolean isChainJob(Configuration conf) {
}
return isChainJob;
}
private void actOnUnusableNode(NodeId nodeId, NodeState nodeState) {
// rerun previously successful map tasks
List<TaskAttemptId> taskAttemptIdList = nodesToSucceededTaskAttempts.get(nodeId);
if(taskAttemptIdList != null) {
String mesg = "TaskAttempt killed because it ran on unusable node "
+ nodeId;
for(TaskAttemptId id : taskAttemptIdList) {
if(TaskType.MAP == id.getTaskId().getTaskType()) {
// reschedule only map tasks because their outputs maybe unusable
LOG.info(mesg + ". AttemptId:" + id);
eventHandler.handle(new TaskAttemptKillEvent(id, mesg));
}
}
}
// currently running task attempts on unusable nodes are handled in
// RMContainerAllocator
}
/*
private int getBlockSize() {
@ -1269,18 +1315,37 @@ public void transition(JobImpl job, JobEvent event) {
tce.setEventId(job.taskAttemptCompletionEvents.size());
job.taskAttemptCompletionEvents.add(tce);
TaskAttemptId attemptId = tce.getAttemptId();
TaskId taskId = attemptId.getTaskId();
//make the previous completion event as obsolete if it exists
Object successEventNo =
job.successAttemptCompletionEventNoMap.remove(tce.getAttemptId().getTaskId());
job.successAttemptCompletionEventNoMap.remove(taskId);
if (successEventNo != null) {
TaskAttemptCompletionEvent successEvent =
job.taskAttemptCompletionEvents.get((Integer) successEventNo);
successEvent.setStatus(TaskAttemptCompletionEventStatus.OBSOLETE);
}
// if this attempt is not successful then why is the previous successful
// attempt being removed above - MAPREDUCE-4330
if (TaskAttemptCompletionEventStatus.SUCCEEDED.equals(tce.getStatus())) {
job.successAttemptCompletionEventNoMap.put(tce.getAttemptId().getTaskId(),
tce.getEventId());
job.successAttemptCompletionEventNoMap.put(taskId, tce.getEventId());
// here we could have simply called Task.getSuccessfulAttempt() but
// the event that triggers this code is sent before
// Task.successfulAttempt is set and so there is no guarantee that it
// will be available now
Task task = job.tasks.get(taskId);
TaskAttempt attempt = task.getAttempt(attemptId);
NodeId nodeId = attempt.getNodeId();
assert (nodeId != null); // node must exist for a successful event
List<TaskAttemptId> taskAttemptIdList = job.nodesToSucceededTaskAttempts
.get(nodeId);
if (taskAttemptIdList == null) {
taskAttemptIdList = new ArrayList<TaskAttemptId>();
job.nodesToSucceededTaskAttempts.put(nodeId, taskAttemptIdList);
}
taskAttemptIdList.add(attempt.getID());
}
}
}
@ -1460,7 +1525,22 @@ public void transition(JobImpl job, JobEvent event) {
}
}
}
private static class UpdatedNodesTransition implements
SingleArcTransition<JobImpl, JobEvent> {
@Override
public void transition(JobImpl job, JobEvent event) {
JobUpdatedNodesEvent updateEvent = (JobUpdatedNodesEvent) event;
for(NodeReport nr: updateEvent.getUpdatedNodes()) {
NodeState nodeState = nr.getNodeState();
if(nodeState.isUnusable()) {
// act on the updates
job.actOnUnusableNode(nr.getNodeId(), nodeState);
}
}
}
}
private static class InternalErrorTransition implements
SingleArcTransition<JobImpl, JobEvent> {
@Override

78
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
View File

@ -84,6 +84,7 @@
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptDiagnosticsUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptKillEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEventType;
@ -403,6 +404,10 @@ TaskAttemptEventType.TA_CONTAINER_CLEANED, new TaskCleanupTransition())
TaskAttemptState.FAILED,
TaskAttemptEventType.TA_TOO_MANY_FETCH_FAILURE,
new TooManyFetchFailureTransition())
.addTransition(
TaskAttemptState.SUCCEEDED, TaskAttemptState.KILLED,
TaskAttemptEventType.TA_KILL,
new KilledAfterSuccessTransition())
.addTransition(
TaskAttemptState.SUCCEEDED, TaskAttemptState.SUCCEEDED,
TaskAttemptEventType.TA_DIAGNOSTICS_UPDATE,
@ -410,8 +415,7 @@ TaskAttemptEventType.TA_CONTAINER_CLEANED, new TaskCleanupTransition())
// Ignore-able events for SUCCEEDED state
.addTransition(TaskAttemptState.SUCCEEDED,
TaskAttemptState.SUCCEEDED,
EnumSet.of(TaskAttemptEventType.TA_KILL,
TaskAttemptEventType.TA_FAILMSG,
EnumSet.of(TaskAttemptEventType.TA_FAILMSG,
TaskAttemptEventType.TA_CONTAINER_CLEANED,
TaskAttemptEventType.TA_CONTAINER_COMPLETED))
@ -818,6 +822,16 @@ public int getShufflePort() {
}
}
@Override
public NodeId getNodeId() {
readLock.lock();
try {
return containerNodeId;
} finally {
readLock.unlock();
}
}
/**If container Assigned then return the node's address, otherwise null.
*/
@Override
@ -999,7 +1013,7 @@ private static long computeSlotMillis(TaskAttemptImpl taskAttempt) {
}
private static JobCounterUpdateEvent createJobCounterUpdateEventTAFailed(
TaskAttemptImpl taskAttempt) {
TaskAttemptImpl taskAttempt, boolean taskAlreadyCompleted) {
TaskType taskType = taskAttempt.getID().getTaskId().getTaskType();
JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskAttempt.getID().getTaskId().getJobId());
@ -1007,16 +1021,22 @@ private static JobCounterUpdateEvent createJobCounterUpdateEventTAFailed(
if (taskType == TaskType.MAP) {
jce.addCounterUpdate(JobCounter.NUM_FAILED_MAPS, 1);
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_MAPS, slotMillisIncrement);
if(!taskAlreadyCompleted) {
// dont double count the elapsed time
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_MAPS, slotMillisIncrement);
}
} else {
jce.addCounterUpdate(JobCounter.NUM_FAILED_REDUCES, 1);
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_REDUCES, slotMillisIncrement);
if(!taskAlreadyCompleted) {
// dont double count the elapsed time
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_REDUCES, slotMillisIncrement);
}
}
return jce;
}
private static JobCounterUpdateEvent createJobCounterUpdateEventTAKilled(
TaskAttemptImpl taskAttempt) {
TaskAttemptImpl taskAttempt, boolean taskAlreadyCompleted) {
TaskType taskType = taskAttempt.getID().getTaskId().getTaskType();
JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskAttempt.getID().getTaskId().getJobId());
@ -1024,10 +1044,16 @@ private static JobCounterUpdateEvent createJobCounterUpdateEventTAKilled(
if (taskType == TaskType.MAP) {
jce.addCounterUpdate(JobCounter.NUM_KILLED_MAPS, 1);
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_MAPS, slotMillisIncrement);
if(!taskAlreadyCompleted) {
// dont double count the elapsed time
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_MAPS, slotMillisIncrement);
}
} else {
jce.addCounterUpdate(JobCounter.NUM_KILLED_REDUCES, 1);
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_REDUCES, slotMillisIncrement);
if(!taskAlreadyCompleted) {
// dont double count the elapsed time
jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_REDUCES, slotMillisIncrement);
}
}
return jce;
}
@ -1259,10 +1285,10 @@ public void transition(TaskAttemptImpl taskAttempt,
finalState);
if(finalState == TaskAttemptState.FAILED) {
taskAttempt.eventHandler
.handle(createJobCounterUpdateEventTAFailed(taskAttempt));
.handle(createJobCounterUpdateEventTAFailed(taskAttempt, false));
} else if(finalState == TaskAttemptState.KILLED) {
taskAttempt.eventHandler
.handle(createJobCounterUpdateEventTAKilled(taskAttempt));
.handle(createJobCounterUpdateEventTAKilled(taskAttempt, false));
}
taskAttempt.eventHandler.handle(new JobHistoryEvent(
taskAttempt.attemptId.getTaskId().getJobId(), tauce));
@ -1394,7 +1420,7 @@ public void transition(TaskAttemptImpl taskAttempt, TaskAttemptEvent event) {
if (taskAttempt.getLaunchTime() != 0) {
taskAttempt.eventHandler
.handle(createJobCounterUpdateEventTAFailed(taskAttempt));
.handle(createJobCounterUpdateEventTAFailed(taskAttempt, false));
TaskAttemptUnsuccessfulCompletionEvent tauce =
createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
TaskAttemptState.FAILED);
@ -1463,7 +1489,7 @@ public void transition(TaskAttemptImpl taskAttempt, TaskAttemptEvent event) {
if (taskAttempt.getLaunchTime() != 0) {
taskAttempt.eventHandler
.handle(createJobCounterUpdateEventTAFailed(taskAttempt));
.handle(createJobCounterUpdateEventTAFailed(taskAttempt, true));
TaskAttemptUnsuccessfulCompletionEvent tauce =
createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
TaskAttemptState.FAILED);
@ -1477,6 +1503,32 @@ public void transition(TaskAttemptImpl taskAttempt, TaskAttemptEvent event) {
taskAttempt.attemptId, TaskEventType.T_ATTEMPT_FAILED));
}
}
private static class KilledAfterSuccessTransition implements
SingleArcTransition<TaskAttemptImpl, TaskAttemptEvent> {
@SuppressWarnings("unchecked")
@Override
public void transition(TaskAttemptImpl taskAttempt,
TaskAttemptEvent event) {
TaskAttemptKillEvent msgEvent = (TaskAttemptKillEvent) event;
//add to diagnostic
taskAttempt.addDiagnosticInfo(msgEvent.getMessage());
// not setting a finish time since it was set on success
assert (taskAttempt.getFinishTime() != 0);
assert (taskAttempt.getLaunchTime() != 0);
taskAttempt.eventHandler
.handle(createJobCounterUpdateEventTAKilled(taskAttempt, true));
TaskAttemptUnsuccessfulCompletionEvent tauce = createTaskAttemptUnsuccessfulCompletionEvent(
taskAttempt, TaskAttemptState.KILLED);
taskAttempt.eventHandler.handle(new JobHistoryEvent(taskAttempt.attemptId
.getTaskId().getJobId(), tauce));
taskAttempt.eventHandler.handle(new TaskTAttemptEvent(
taskAttempt.attemptId, TaskEventType.T_ATTEMPT_KILLED));
}
}
private static class KilledTransition implements
SingleArcTransition<TaskAttemptImpl, TaskAttemptEvent> {
@ -1489,7 +1541,7 @@ public void transition(TaskAttemptImpl taskAttempt,
taskAttempt.setFinishTime();
if (taskAttempt.getLaunchTime() != 0) {
taskAttempt.eventHandler
.handle(createJobCounterUpdateEventTAKilled(taskAttempt));
.handle(createJobCounterUpdateEventTAKilled(taskAttempt, false));
TaskAttemptUnsuccessfulCompletionEvent tauce =
createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
TaskAttemptState.KILLED);

67
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskImpl.java
View File

@ -191,13 +191,14 @@ TaskEventType.T_ADD_SPEC_ATTEMPT, new RedundantScheduleTransition())
.addTransition(TaskState.SUCCEEDED, //only possible for map tasks
EnumSet.of(TaskState.SCHEDULED, TaskState.FAILED),
TaskEventType.T_ATTEMPT_FAILED, new MapRetroactiveFailureTransition())
.addTransition(TaskState.SUCCEEDED, //only possible for map tasks
EnumSet.of(TaskState.SCHEDULED, TaskState.SUCCEEDED),
TaskEventType.T_ATTEMPT_KILLED, new MapRetroactiveKilledTransition())
// Ignore-able transitions.
.addTransition(
TaskState.SUCCEEDED, TaskState.SUCCEEDED,
EnumSet.of(TaskEventType.T_KILL,
TaskEventType.T_ADD_SPEC_ATTEMPT,
TaskEventType.T_ATTEMPT_LAUNCHED,
TaskEventType.T_ATTEMPT_KILLED))
EnumSet.of(TaskEventType.T_ADD_SPEC_ATTEMPT,
TaskEventType.T_ATTEMPT_LAUNCHED))
// Transitions from FAILED state
.addTransition(TaskState.FAILED, TaskState.FAILED,
@ -629,7 +630,6 @@ private void internalError(TaskEventType type) {
// always called inside a transition, in turn inside the Write Lock
private void handleTaskAttemptCompletion(TaskAttemptId attemptId,
TaskAttemptCompletionEventStatus status) {
finishedAttempts++;
TaskAttempt attempt = attempts.get(attemptId);
//raise the completion event only if the container is assigned
// to nextAttemptNumber
@ -681,6 +681,11 @@ private static TaskFailedEvent createTaskFailedEvent(TaskImpl task, List<String>
taId == null ? null : TypeConverter.fromYarn(taId));
return taskFailedEvent;
}
private static void unSucceed(TaskImpl task) {
task.commitAttempt = null;
task.successfulAttempt = null;
}
/**
* @return a String representation of the splits.
@ -755,6 +760,7 @@ public void transition(TaskImpl task, TaskEvent event) {
task.handleTaskAttemptCompletion(
((TaskTAttemptEvent) event).getTaskAttemptID(),
TaskAttemptCompletionEventStatus.SUCCEEDED);
task.finishedAttempts++;
--task.numberUncompletedAttempts;
task.successfulAttempt = ((TaskTAttemptEvent) event).getTaskAttemptID();
task.eventHandler.handle(new JobTaskEvent(
@ -790,6 +796,7 @@ public void transition(TaskImpl task, TaskEvent event) {
task.handleTaskAttemptCompletion(
((TaskTAttemptEvent) event).getTaskAttemptID(),
TaskAttemptCompletionEventStatus.KILLED);
task.finishedAttempts++;
--task.numberUncompletedAttempts;
if (task.successfulAttempt == null) {
task.addAndScheduleAttempt();
@ -808,6 +815,7 @@ public TaskState transition(TaskImpl task, TaskEvent event) {
task.handleTaskAttemptCompletion(
((TaskTAttemptEvent) event).getTaskAttemptID(),
TaskAttemptCompletionEventStatus.KILLED);
task.finishedAttempts++;
// check whether all attempts are finished
if (task.finishedAttempts == task.attempts.size()) {
if (task.historyTaskStartGenerated) {
@ -845,6 +853,7 @@ public TaskState transition(TaskImpl task, TaskEvent event) {
attempt.getAssignedContainerMgrAddress()));
}
task.finishedAttempts++;
if (task.failedAttempts < task.maxAttempts) {
task.handleTaskAttemptCompletion(
((TaskTAttemptEvent) event).getTaskAttemptID(),
@ -880,12 +889,6 @@ public TaskState transition(TaskImpl task, TaskEvent event) {
protected TaskState getDefaultState(Task task) {
return task.getState();
}
protected void unSucceed(TaskImpl task) {
++task.numberUncompletedAttempts;
task.commitAttempt = null;
task.successfulAttempt = null;
}
}
private static class MapRetroactiveFailureTransition
@ -908,6 +911,8 @@ public TaskState transition(TaskImpl task, TaskEvent event) {
// fails, we have to let AttemptFailedTransition.transition
// believe that there's no redundancy.
unSucceed(task);
// fake increase in Uncomplete attempts for super.transition
++task.numberUncompletedAttempts;
return super.transition(task, event);
}
@ -917,6 +922,45 @@ protected TaskState getDefaultState(Task task) {
}
}
private static class MapRetroactiveKilledTransition implements
MultipleArcTransition<TaskImpl, TaskEvent, TaskState> {
@Override
public TaskState transition(TaskImpl task, TaskEvent event) {
// verify that this occurs only for map task
// TODO: consider moving it to MapTaskImpl
if (!TaskType.MAP.equals(task.getType())) {
LOG.error("Unexpected event for REDUCE task " + event.getType());
task.internalError(event.getType());
}
TaskTAttemptEvent attemptEvent = (TaskTAttemptEvent) event;
TaskAttemptId attemptId = attemptEvent.getTaskAttemptID();
if(task.successfulAttempt == attemptId) {
// successful attempt is now killed. reschedule
// tell the job about the rescheduling
unSucceed(task);
task.handleTaskAttemptCompletion(
attemptId,
TaskAttemptCompletionEventStatus.KILLED);
task.eventHandler.handle(new JobMapTaskRescheduledEvent(task.taskId));
// typically we are here because this map task was run on a bad node and
// we want to reschedule it on a different node.
// Depending on whether there are previous failed attempts or not this
// can SCHEDULE or RESCHEDULE the container allocate request. If this
// SCHEDULE's then the dataLocal hosts of this taskAttempt will be used
// from the map splitInfo. So the bad node might be sent as a location
// to the RM. But the RM would ignore that just like it would ignore
// currently pending container requests affinitized to bad nodes.
task.addAndScheduleAttempt();
return TaskState.SCHEDULED;
} else {
// nothing to do
return TaskState.SUCCEEDED;
}
}
}
private static class KillNewTransition
implements SingleArcTransition<TaskImpl, TaskEvent> {
@Override
@ -966,6 +1010,7 @@ static class LaunchTransition
public void transition(TaskImpl task, TaskEvent event) {
task.metrics.launchedTask(task);
task.metrics.runningTask(task);
}
}
}

92
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMContainerAllocator.java
View File

@ -21,6 +21,7 @@
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
@ -46,19 +47,27 @@
import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.client.ClientService;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.mapreduce.v2.app.job.Task;
import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobCounterUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobDiagnosticsUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobUpdatedNodesEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptContainerAssignedEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptDiagnosticsUpdateEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptKillEvent;
import org.apache.hadoop.yarn.YarnException;
import org.apache.hadoop.yarn.api.records.AMResponse;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.NodeState;
import org.apache.hadoop.yarn.api.records.Priority;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.apache.hadoop.yarn.util.RackResolver;
@ -583,7 +592,9 @@ private List<Container> getResources() throws Exception {
//Called on each allocation. Will know about newly blacklisted/added hosts.
computeIgnoreBlacklisting();
handleUpdatedNodes(response);
for (ContainerStatus cont : finishedContainers) {
LOG.info("Received completed container " + cont.getContainerId());
TaskAttemptId attemptID = assignedRequests.get(cont.getContainerId());
@ -600,10 +611,48 @@ private List<Container> getResources() throws Exception {
String diagnostics = cont.getDiagnostics();
eventHandler.handle(new TaskAttemptDiagnosticsUpdateEvent(attemptID,
diagnostics));
}
}
}
return newContainers;
}
@SuppressWarnings("unchecked")
private void handleUpdatedNodes(AMResponse response) {
// send event to the job about on updated nodes
List<NodeReport> updatedNodes = response.getUpdatedNodes();
if (!updatedNodes.isEmpty()) {
// send event to the job to act upon completed tasks
eventHandler.handle(new JobUpdatedNodesEvent(getJob().getID(),
updatedNodes));
// act upon running tasks
HashSet<NodeId> unusableNodes = new HashSet<NodeId>();
for (NodeReport nr : updatedNodes) {
NodeState nodeState = nr.getNodeState();
if (nodeState.isUnusable()) {
unusableNodes.add(nr.getNodeId());
}
}
for (int i = 0; i < 2; ++i) {
HashMap<TaskAttemptId, Container> taskSet = i == 0 ? assignedRequests.maps
: assignedRequests.reduces;
// kill running containers
for (Map.Entry<TaskAttemptId, Container> entry : taskSet.entrySet()) {
TaskAttemptId tid = entry.getKey();
NodeId taskAttemptNodeId = entry.getValue().getNodeId();
if (unusableNodes.contains(taskAttemptNodeId)) {
LOG.info("Killing taskAttempt:" + tid
+ " because it is running on unusable node:"
+ taskAttemptNodeId);
eventHandler.handle(new TaskAttemptKillEvent(tid,
"TaskAttempt killed because it ran on unusable node"
+ taskAttemptNodeId));
}
}
}
}
}
@Private
public int getMemLimit() {
@ -743,7 +792,6 @@ else if (PRIORITY_REDUCE.equals(priority)) {
boolean blackListed = false;
ContainerRequest assigned = null;
ContainerId allocatedContainerId = allocated.getId();
if (isAssignable) {
// do not assign if allocated container is on a
// blacklisted host
@ -790,7 +838,7 @@ else if (PRIORITY_REDUCE.equals(priority)) {
eventHandler.handle(new TaskAttemptContainerAssignedEvent(
assigned.attemptID, allocated, applicationACLs));
assignedRequests.add(allocatedContainerId, assigned.attemptID);
assignedRequests.add(allocated, assigned.attemptID);
if (LOG.isDebugEnabled()) {
LOG.info("Assigned container (" + allocated + ") "
@ -811,7 +859,7 @@ else if (PRIORITY_REDUCE.equals(priority)) {
// or if we could not assign it
if (blackListed || assigned == null) {
containersReleased++;
release(allocatedContainerId);
release(allocated.getId());
}
}
}
@ -974,20 +1022,20 @@ private ContainerRequest assignToMap(Container allocated) {
private class AssignedRequests {
private final Map<ContainerId, TaskAttemptId> containerToAttemptMap =
new HashMap<ContainerId, TaskAttemptId>();
private final LinkedHashMap<TaskAttemptId, ContainerId> maps =
new LinkedHashMap<TaskAttemptId, ContainerId>();
private final LinkedHashMap<TaskAttemptId, ContainerId> reduces =
new LinkedHashMap<TaskAttemptId, ContainerId>();
private final LinkedHashMap<TaskAttemptId, Container> maps =
new LinkedHashMap<TaskAttemptId, Container>();
private final LinkedHashMap<TaskAttemptId, Container> reduces =
new LinkedHashMap<TaskAttemptId, Container>();
private final Set<TaskAttemptId> preemptionWaitingReduces =
new HashSet<TaskAttemptId>();
void add(ContainerId containerId, TaskAttemptId tId) {
LOG.info("Assigned container " + containerId.toString() + " to " + tId);
containerToAttemptMap.put(containerId, tId);
void add(Container container, TaskAttemptId tId) {
LOG.info("Assigned container " + container.getId().toString() + " to " + tId);
containerToAttemptMap.put(container.getId(), tId);
if (tId.getTaskId().getTaskType().equals(TaskType.MAP)) {
maps.put(tId, containerId);
maps.put(tId, container);
} else {
reduces.put(tId, containerId);
reduces.put(tId, container);
}
}
@ -1017,9 +1065,9 @@ public int compare(TaskAttemptId o1, TaskAttemptId o2) {
boolean remove(TaskAttemptId tId) {
ContainerId containerId = null;
if (tId.getTaskId().getTaskType().equals(TaskType.MAP)) {
containerId = maps.remove(tId);
containerId = maps.remove(tId).getId();
} else {
containerId = reduces.remove(tId);
containerId = reduces.remove(tId).getId();
if (containerId != null) {
boolean preempted = preemptionWaitingReduces.remove(tId);
if (preempted) {
@ -1038,12 +1086,20 @@ boolean remove(TaskAttemptId tId) {
TaskAttemptId get(ContainerId cId) {
return containerToAttemptMap.get(cId);
}
NodeId getNodeId(TaskAttemptId tId) {
if (tId.getTaskId().getTaskType().equals(TaskType.MAP)) {
return maps.get(tId).getNodeId();
} else {
return reduces.get(tId).getNodeId();
}
}
ContainerId get(TaskAttemptId tId) {
if (tId.getTaskId().getTaskType().equals(TaskType.MAP)) {
return maps.get(tId);
return maps.get(tId).getId();
} else {
return reduces.get(tId);
return reduces.get(tId).getId();
}
}
}

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MockJobs.java
View File

@ -64,6 +64,7 @@
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.util.BuilderUtils;
import org.apache.hadoop.yarn.util.Records;
@ -231,6 +232,11 @@ public static TaskAttempt newTaskAttempt(TaskId tid, int i) {
final List<String> diags = Lists.newArrayList();
diags.add(DIAGS.next());
return new TaskAttempt() {
@Override
public NodeId getNodeId() throws UnsupportedOperationException{
throw new UnsupportedOperationException();
}
@Override
public TaskAttemptId getID() {
return taid;

182
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestMRApp.java
View File

@ -22,6 +22,7 @@
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import java.util.ArrayList;
import java.util.Iterator;
import junit.framework.Assert;
@ -29,17 +30,26 @@
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.TypeConverter;
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryEvent;
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler;
import org.apache.hadoop.mapreduce.v2.api.records.JobState;
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptCompletionEvent;
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
import org.apache.hadoop.mapreduce.v2.api.records.TaskState;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.mapreduce.v2.app.job.Task;
import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobUpdatedNodesEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEventType;
import org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.NodeState;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.junit.Test;
/**
@ -160,6 +170,159 @@ public void testCompletedMapsForReduceSlowstart() throws Exception {
app.waitForState(job, JobState.SUCCEEDED);
}
/**
* The test verifies that the AM re-runs maps that have run on bad nodes. It
* also verifies that the AM records all success/killed events so that reduces
* are notified about map output status changes. It also verifies that the
* re-run information is preserved across AM restart
*/
@Test
public void testUpdatedNodes() throws Exception {
int runCount = 0;
MRApp app = new MRAppWithHistory(2, 1, false, this.getClass().getName(),
true, ++runCount);
Configuration conf = new Configuration();
// after half of the map completion, reduce will start
conf.setFloat(MRJobConfig.COMPLETED_MAPS_FOR_REDUCE_SLOWSTART, 0.5f);
// uberization forces full slowstart (1.0), so disable that
conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
Job job = app.submit(conf);
app.waitForState(job, JobState.RUNNING);
Assert.assertEquals("Num tasks not correct", 3, job.getTasks().size());
Iterator<Task> it = job.getTasks().values().iterator();
Task mapTask1 = it.next();
Task mapTask2 = it.next();
// all maps must be running
app.waitForState(mapTask1, TaskState.RUNNING);
app.waitForState(mapTask2, TaskState.RUNNING);
TaskAttempt task1Attempt = mapTask1.getAttempts().values().iterator()
.next();
TaskAttempt task2Attempt = mapTask2.getAttempts().values().iterator()
.next();
NodeId node1 = task1Attempt.getNodeId();
NodeId node2 = task2Attempt.getNodeId();
Assert.assertEquals(node1, node2);
// send the done signal to the task
app.getContext()
.getEventHandler()
.handle(
new TaskAttemptEvent(task1Attempt.getID(),
TaskAttemptEventType.TA_DONE));
app.getContext()
.getEventHandler()
.handle(
new TaskAttemptEvent(task2Attempt.getID(),
TaskAttemptEventType.TA_DONE));
// all maps must be succeeded
app.waitForState(mapTask1, TaskState.SUCCEEDED);
app.waitForState(mapTask2, TaskState.SUCCEEDED);
TaskAttemptCompletionEvent[] events = job.getTaskAttemptCompletionEvents(0,
100);
Assert.assertEquals("Expecting 2 completion events for success", 2,
events.length);
// send updated nodes info
ArrayList<NodeReport> updatedNodes = new ArrayList<NodeReport>();
NodeReport nr = RecordFactoryProvider.getRecordFactory(null)
.newRecordInstance(NodeReport.class);
nr.setNodeId(node1);
nr.setNodeState(NodeState.UNHEALTHY);
updatedNodes.add(nr);
app.getContext().getEventHandler()
.handle(new JobUpdatedNodesEvent(job.getID(), updatedNodes));
app.waitForState(task1Attempt, TaskAttemptState.KILLED);
app.waitForState(task2Attempt, TaskAttemptState.KILLED);
events = job.getTaskAttemptCompletionEvents(0, 100);
Assert.assertEquals("Expecting 2 more completion events for killed", 4,
events.length);
// all maps must be back to running
app.waitForState(mapTask1, TaskState.RUNNING);
app.waitForState(mapTask2, TaskState.RUNNING);
Iterator<TaskAttempt> itr = mapTask1.getAttempts().values().iterator();
itr.next();
task1Attempt = itr.next();
// send the done signal to the task
app.getContext()
.getEventHandler()
.handle(
new TaskAttemptEvent(task1Attempt.getID(),
TaskAttemptEventType.TA_DONE));
// map1 must be succeeded. map2 must be running
app.waitForState(mapTask1, TaskState.SUCCEEDED);
app.waitForState(mapTask2, TaskState.RUNNING);
events = job.getTaskAttemptCompletionEvents(0, 100);
Assert.assertEquals("Expecting 1 more completion events for success", 5,
events.length);
// Crash the app again.
app.stop();
// rerun
// in rerun the 1st map will be recovered from previous run
app = new MRAppWithHistory(2, 1, false, this.getClass().getName(), false,
++runCount);
conf = new Configuration();
conf.setBoolean(MRJobConfig.MR_AM_JOB_RECOVERY_ENABLE, true);
conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
job = app.submit(conf);
app.waitForState(job, JobState.RUNNING);
Assert.assertEquals("No of tasks not correct", 3, job.getTasks().size());
it = job.getTasks().values().iterator();
mapTask1 = it.next();
mapTask2 = it.next();
Task reduceTask = it.next();
// map 1 will be recovered, no need to send done
app.waitForState(mapTask1, TaskState.SUCCEEDED);
app.waitForState(mapTask2, TaskState.RUNNING);
events = job.getTaskAttemptCompletionEvents(0, 100);
Assert.assertEquals(
"Expecting 2 completion events for killed & success of map1", 2,
events.length);
task2Attempt = mapTask2.getAttempts().values().iterator().next();
app.getContext()
.getEventHandler()
.handle(
new TaskAttemptEvent(task2Attempt.getID(),
TaskAttemptEventType.TA_DONE));
app.waitForState(mapTask2, TaskState.SUCCEEDED);
events = job.getTaskAttemptCompletionEvents(0, 100);
Assert.assertEquals("Expecting 1 more completion events for success", 3,
events.length);
app.waitForState(reduceTask, TaskState.RUNNING);
TaskAttempt task3Attempt = reduceTask.getAttempts().values().iterator()
.next();
app.getContext()
.getEventHandler()
.handle(
new TaskAttemptEvent(task3Attempt.getID(),
TaskAttemptEventType.TA_DONE));
app.waitForState(reduceTask, TaskState.SUCCEEDED);
events = job.getTaskAttemptCompletionEvents(0, 100);
Assert.assertEquals("Expecting 1 more completion events for success", 4,
events.length);
// job succeeds
app.waitForState(job, JobState.SUCCEEDED);
}
@Test
public void testJobError() throws Exception {
@ -194,10 +357,6 @@ protected Job createJob(Configuration conf) {
((AppContext) getContext()).getAllJobs().put(spiedJob.getID(), spiedJob);
return spiedJob;
}
JobImpl getSpiedJob() {
return this.spiedJob;
}
}
@Test
@ -232,6 +391,21 @@ public void checkTaskStateTypeConversion() {
TypeConverter.fromYarn(state);
}
}
private final class MRAppWithHistory extends MRApp {
public MRAppWithHistory(int maps, int reduces, boolean autoComplete,
String testName, boolean cleanOnStart, int startCount) {
super(maps, reduces, autoComplete, testName, cleanOnStart, startCount);
}
@Override
protected EventHandler<JobHistoryEvent> createJobHistoryHandler(
AppContext context) {
JobHistoryEventHandler eventHandler = new JobHistoryEventHandler(context,
getStartCount());
return eventHandler;
}
}
public static void main(String[] args) throws Exception {
TestMRApp t = new TestMRApp();

101
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRMContainerAllocator.java
View File

@ -46,9 +46,11 @@
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.mapreduce.v2.app.job.Task;
import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.mapreduce.v2.app.job.event.JobUpdatedNodesEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptContainerAssignedEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptKillEvent;
import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocator;
import org.apache.hadoop.mapreduce.v2.app.rm.ContainerFailedEvent;
import org.apache.hadoop.mapreduce.v2.app.rm.ContainerRequestEvent;
@ -594,6 +596,88 @@ protected ContainerAllocator createContainerAllocator(
Assert.assertEquals(0.95f, job.getProgress(), 0.001f);
Assert.assertEquals(0.95f, rmApp.getProgress(), 0.001f);
}
@Test
public void testUpdatedNodes() throws Exception {
Configuration conf = new Configuration();
MyResourceManager rm = new MyResourceManager(conf);
rm.start();
DrainDispatcher dispatcher = (DrainDispatcher) rm.getRMContext()
.getDispatcher();
// Submit the application
RMApp app = rm.submitApp(1024);
dispatcher.await();
MockNM amNodeManager = rm.registerNode("amNM:1234", 2048);
amNodeManager.nodeHeartbeat(true);
dispatcher.await();
ApplicationAttemptId appAttemptId = app.getCurrentAppAttempt()
.getAppAttemptId();
rm.sendAMLaunched(appAttemptId);
dispatcher.await();
JobId jobId = MRBuilderUtils.newJobId(appAttemptId.getApplicationId(), 0);
Job mockJob = mock(Job.class);
MyContainerAllocator allocator = new MyContainerAllocator(rm, conf,
appAttemptId, mockJob);
// add resources to scheduler
MockNM nm1 = rm.registerNode("h1:1234", 10240);
MockNM nm2 = rm.registerNode("h2:1234", 10240);
dispatcher.await();
// create the map container request
ContainerRequestEvent event = createReq(jobId, 1, 1024,
new String[] { "h1" });
allocator.sendRequest(event);
TaskAttemptId attemptId = event.getAttemptID();
TaskAttempt mockTaskAttempt = mock(TaskAttempt.class);
when(mockTaskAttempt.getNodeId()).thenReturn(nm1.getNodeId());
Task mockTask = mock(Task.class);
when(mockTask.getAttempt(attemptId)).thenReturn(mockTaskAttempt);
when(mockJob.getTask(attemptId.getTaskId())).thenReturn(mockTask);
// this tells the scheduler about the requests
List<TaskAttemptContainerAssignedEvent> assigned = allocator.schedule();
dispatcher.await();
nm1.nodeHeartbeat(true);
dispatcher.await();
// get the assignment
assigned = allocator.schedule();
dispatcher.await();
Assert.assertEquals(1, assigned.size());
Assert.assertEquals(nm1.getNodeId(), assigned.get(0).getContainer().getNodeId());
// no updated nodes reported
Assert.assertTrue(allocator.getJobUpdatedNodeEvents().isEmpty());
Assert.assertTrue(allocator.getTaskAttemptKillEvents().isEmpty());
// mark nodes bad
nm1.nodeHeartbeat(false);
nm2.nodeHeartbeat(false);
dispatcher.await();
// schedule response returns updated nodes
assigned = allocator.schedule();
dispatcher.await();
Assert.assertEquals(0, assigned.size());
// updated nodes are reported
Assert.assertEquals(1, allocator.getJobUpdatedNodeEvents().size());
Assert.assertEquals(1, allocator.getTaskAttemptKillEvents().size());
Assert.assertEquals(2, allocator.getJobUpdatedNodeEvents().get(0).getUpdatedNodes().size());
Assert.assertEquals(attemptId, allocator.getTaskAttemptKillEvents().get(0).getTaskAttemptID());
allocator.getJobUpdatedNodeEvents().clear();
allocator.getTaskAttemptKillEvents().clear();
assigned = allocator.schedule();
dispatcher.await();
Assert.assertEquals(0, assigned.size());
// no updated nodes reported
Assert.assertTrue(allocator.getJobUpdatedNodeEvents().isEmpty());
Assert.assertTrue(allocator.getTaskAttemptKillEvents().isEmpty());
}
@Test
public void testBlackListedNodes() throws Exception {
@ -1100,7 +1184,10 @@ private void checkAssignment(ContainerRequestEvent request,
private static class MyContainerAllocator extends RMContainerAllocator {
static final List<TaskAttemptContainerAssignedEvent> events
= new ArrayList<TaskAttemptContainerAssignedEvent>();
static final List<TaskAttemptKillEvent> taskAttemptKillEvents
= new ArrayList<TaskAttemptKillEvent>();
static final List<JobUpdatedNodesEvent> jobUpdatedNodeEvents
= new ArrayList<JobUpdatedNodesEvent>();
private MyResourceManager rm;
private static AppContext createAppContext(
@ -1119,6 +1206,10 @@ public void handle(Event event) {
// Only capture interesting events.
if (event instanceof TaskAttemptContainerAssignedEvent) {
events.add((TaskAttemptContainerAssignedEvent) event);
} else if (event instanceof TaskAttemptKillEvent) {
taskAttemptKillEvents.add((TaskAttemptKillEvent)event);
} else if (event instanceof JobUpdatedNodesEvent) {
jobUpdatedNodeEvents.add((JobUpdatedNodesEvent)event);
}
}
});
@ -1202,6 +1293,14 @@ public List<TaskAttemptContainerAssignedEvent> schedule() {
events.clear();
return result;
}
List<TaskAttemptKillEvent> getTaskAttemptKillEvents() {
return taskAttemptKillEvents;
}
List<JobUpdatedNodesEvent> getJobUpdatedNodeEvents() {
return jobUpdatedNodeEvents;
}
@Override
protected void startAllocatorThread() {

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRuntimeEstimators.java
View File

@ -66,6 +66,7 @@
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.event.AsyncDispatcher;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.factories.RecordFactory;
@ -528,6 +529,11 @@ void startUp() {
dispatcher.getEventHandler().handle(event);
}
@Override
public NodeId getNodeId() throws UnsupportedOperationException{
throw new UnsupportedOperationException();
}
@Override
public TaskAttemptId getID() {
return myAttemptID;

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryParser.java
View File

@ -282,9 +282,12 @@ private void handleTaskAttemptFailedEvent(
if(attemptInfo.getAttemptId().equals(taskInfo.getSuccessfulAttemptId()))
{
// the failed attempt is the one that made this task successful
// so its no longer successful
// so its no longer successful. Reset fields set in
// handleTaskFinishedEvent()
taskInfo.counters = null;
taskInfo.finishTime = -1;
taskInfo.status = null;
// not resetting the other fields set in handleTaskFinishedEvent()
taskInfo.successfulAttemptId = null;
}
}
}

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CompletedTaskAttempt.java
View File

@ -30,6 +30,7 @@
import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.util.Records;
public class CompletedTaskAttempt implements TaskAttempt {
@ -57,6 +58,11 @@ public class CompletedTaskAttempt implements TaskAttempt {
}
}
@Override
public NodeId getNodeId() throws UnsupportedOperationException{
throw new UnsupportedOperationException();
}
@Override
public ContainerId getAssignedContainerID() {
return attemptInfo.getContainerId();

8
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/NodeState.java
View File

@ -38,5 +38,9 @@ public enum NodeState {
LOST,
/** Node has rebooted */
REBOOTED
}
REBOOTED;
public boolean isUnusable() {
return (this == UNHEALTHY || this == DECOMMISSIONED || this == LOST);
}
}