hadoop MemoryApplicationHistoryStore 源码
haddop MemoryApplicationHistoryStore 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/MemoryApplicationHistoryStore.java
/**
* 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.yarn.server.applicationhistoryservice;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.service.AbstractService;
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.server.applicationhistoryservice.records.ApplicationAttemptFinishData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationAttemptHistoryData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationAttemptStartData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationFinishData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationHistoryData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationStartData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ContainerFinishData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ContainerHistoryData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ContainerStartData;
/**
* In-memory implementation of {@link ApplicationHistoryStore}. This
* implementation is for test purpose only. If users improperly instantiate it,
* they may encounter reading and writing history data in different memory
* store.
*
*/
@Private
@Unstable
public class MemoryApplicationHistoryStore extends AbstractService implements
ApplicationHistoryStore {
private final ConcurrentMap<ApplicationId, ApplicationHistoryData> applicationData =
new ConcurrentHashMap<ApplicationId, ApplicationHistoryData>();
private final ConcurrentMap<ApplicationId, ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData>> applicationAttemptData =
new ConcurrentHashMap<ApplicationId, ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData>>();
private final ConcurrentMap<ApplicationAttemptId, ConcurrentMap<ContainerId, ContainerHistoryData>> containerData =
new ConcurrentHashMap<ApplicationAttemptId, ConcurrentMap<ContainerId, ContainerHistoryData>>();
public MemoryApplicationHistoryStore() {
super(MemoryApplicationHistoryStore.class.getName());
}
@Override
public Map<ApplicationId, ApplicationHistoryData> getAllApplications() {
return new HashMap<ApplicationId, ApplicationHistoryData>(applicationData);
}
@Override
public ApplicationHistoryData getApplication(ApplicationId appId) {
return applicationData.get(appId);
}
@Override
public Map<ApplicationAttemptId, ApplicationAttemptHistoryData>
getApplicationAttempts(ApplicationId appId) {
ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData> subMap =
applicationAttemptData.get(appId);
if (subMap == null) {
return Collections
.<ApplicationAttemptId, ApplicationAttemptHistoryData> emptyMap();
} else {
return new HashMap<ApplicationAttemptId, ApplicationAttemptHistoryData>(
subMap);
}
}
@Override
public ApplicationAttemptHistoryData getApplicationAttempt(
ApplicationAttemptId appAttemptId) {
ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData> subMap =
applicationAttemptData.get(appAttemptId.getApplicationId());
if (subMap == null) {
return null;
} else {
return subMap.get(appAttemptId);
}
}
@Override
public ContainerHistoryData getAMContainer(ApplicationAttemptId appAttemptId) {
ApplicationAttemptHistoryData appAttempt =
getApplicationAttempt(appAttemptId);
if (appAttempt == null || appAttempt.getMasterContainerId() == null) {
return null;
} else {
return getContainer(appAttempt.getMasterContainerId());
}
}
@Override
public ContainerHistoryData getContainer(ContainerId containerId) {
Map<ContainerId, ContainerHistoryData> subMap =
containerData.get(containerId.getApplicationAttemptId());
if (subMap == null) {
return null;
} else {
return subMap.get(containerId);
}
}
@Override
public Map<ContainerId, ContainerHistoryData> getContainers(
ApplicationAttemptId appAttemptId) throws IOException {
ConcurrentMap<ContainerId, ContainerHistoryData> subMap =
containerData.get(appAttemptId);
if (subMap == null) {
return Collections.<ContainerId, ContainerHistoryData> emptyMap();
} else {
return new HashMap<ContainerId, ContainerHistoryData>(subMap);
}
}
@Override
public void applicationStarted(ApplicationStartData appStart)
throws IOException {
ApplicationHistoryData oldData =
applicationData.putIfAbsent(appStart.getApplicationId(),
ApplicationHistoryData.newInstance(appStart.getApplicationId(),
appStart.getApplicationName(), appStart.getApplicationType(),
appStart.getQueue(), appStart.getUser(), appStart.getSubmitTime(),
appStart.getStartTime(), Long.MAX_VALUE, null, null, null));
if (oldData != null) {
throw new IOException("The start information of application "
+ appStart.getApplicationId() + " is already stored.");
}
}
@Override
public void applicationFinished(ApplicationFinishData appFinish)
throws IOException {
ApplicationHistoryData data =
applicationData.get(appFinish.getApplicationId());
if (data == null) {
throw new IOException("The finish information of application "
+ appFinish.getApplicationId() + " is stored before the start"
+ " information.");
}
// Make the assumption that YarnApplicationState should not be null if
// the finish information is already recorded
if (data.getYarnApplicationState() != null) {
throw new IOException("The finish information of application "
+ appFinish.getApplicationId() + " is already stored.");
}
data.setFinishTime(appFinish.getFinishTime());
data.setDiagnosticsInfo(appFinish.getDiagnosticsInfo());
data.setFinalApplicationStatus(appFinish.getFinalApplicationStatus());
data.setYarnApplicationState(appFinish.getYarnApplicationState());
}
@Override
public void applicationAttemptStarted(
ApplicationAttemptStartData appAttemptStart) throws IOException {
ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData> subMap =
getSubMap(appAttemptStart.getApplicationAttemptId().getApplicationId());
ApplicationAttemptHistoryData oldData =
subMap.putIfAbsent(appAttemptStart.getApplicationAttemptId(),
ApplicationAttemptHistoryData.newInstance(
appAttemptStart.getApplicationAttemptId(),
appAttemptStart.getHost(), appAttemptStart.getRPCPort(),
appAttemptStart.getMasterContainerId(), null, null, null, null));
if (oldData != null) {
throw new IOException("The start information of application attempt "
+ appAttemptStart.getApplicationAttemptId() + " is already stored.");
}
}
@Override
public void applicationAttemptFinished(
ApplicationAttemptFinishData appAttemptFinish) throws IOException {
ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData> subMap =
getSubMap(appAttemptFinish.getApplicationAttemptId().getApplicationId());
ApplicationAttemptHistoryData data =
subMap.get(appAttemptFinish.getApplicationAttemptId());
if (data == null) {
throw new IOException("The finish information of application attempt "
+ appAttemptFinish.getApplicationAttemptId() + " is stored before"
+ " the start information.");
}
// Make the assumption that YarnApplicationAttemptState should not be null
// if the finish information is already recorded
if (data.getYarnApplicationAttemptState() != null) {
throw new IOException("The finish information of application attempt "
+ appAttemptFinish.getApplicationAttemptId() + " is already stored.");
}
data.setTrackingURL(appAttemptFinish.getTrackingURL());
data.setDiagnosticsInfo(appAttemptFinish.getDiagnosticsInfo());
data
.setFinalApplicationStatus(appAttemptFinish.getFinalApplicationStatus());
data.setYarnApplicationAttemptState(appAttemptFinish
.getYarnApplicationAttemptState());
}
private ConcurrentMap<ApplicationAttemptId, ApplicationAttemptHistoryData>
getSubMap(ApplicationId appId) {
applicationAttemptData
.putIfAbsent(
appId,
new ConcurrentHashMap<ApplicationAttemptId, ApplicationAttemptHistoryData>());
return applicationAttemptData.get(appId);
}
@Override
public void containerStarted(ContainerStartData containerStart)
throws IOException {
ConcurrentMap<ContainerId, ContainerHistoryData> subMap =
getSubMap(containerStart.getContainerId().getApplicationAttemptId());
ContainerHistoryData oldData =
subMap.putIfAbsent(containerStart.getContainerId(),
ContainerHistoryData.newInstance(containerStart.getContainerId(),
containerStart.getAllocatedResource(),
containerStart.getAssignedNode(), containerStart.getPriority(),
containerStart.getStartTime(), Long.MAX_VALUE, null,
Integer.MAX_VALUE, null));
if (oldData != null) {
throw new IOException("The start information of container "
+ containerStart.getContainerId() + " is already stored.");
}
}
@Override
public void containerFinished(ContainerFinishData containerFinish)
throws IOException {
ConcurrentMap<ContainerId, ContainerHistoryData> subMap =
getSubMap(containerFinish.getContainerId().getApplicationAttemptId());
ContainerHistoryData data = subMap.get(containerFinish.getContainerId());
if (data == null) {
throw new IOException("The finish information of container "
+ containerFinish.getContainerId() + " is stored before"
+ " the start information.");
}
// Make the assumption that ContainerState should not be null if
// the finish information is already recorded
if (data.getContainerState() != null) {
throw new IOException("The finish information of container "
+ containerFinish.getContainerId() + " is already stored.");
}
data.setFinishTime(containerFinish.getFinishTime());
data.setDiagnosticsInfo(containerFinish.getDiagnosticsInfo());
data.setContainerExitStatus(containerFinish.getContainerExitStatus());
data.setContainerState(containerFinish.getContainerState());
}
private ConcurrentMap<ContainerId, ContainerHistoryData> getSubMap(
ApplicationAttemptId appAttemptId) {
containerData.putIfAbsent(appAttemptId,
new ConcurrentHashMap<ContainerId, ContainerHistoryData>());
return containerData.get(appAttemptId);
}
}
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