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YARN-925. Defined a Reader Interface for HistoryStorage. Contributed by Mayank Bansal. 

svn merge --ignore-ancestry -c 1556719 ../YARN-321


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1562176 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Vinod Kumar Vavilapalli 2014-01-28 19:45:58 +00:00
parent 5682c9c945
commit dc513f1f87
2 changed files with 90 additions and 0 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -466,6 +466,9 @@ Branch YARN-321: Generic ApplicationHistoryService
YARN-934. Defined a Writer Interface for HistoryStorage. (Zhijie Shen via
vinodkv)
YARN-925. Defined a Reader Interface for HistoryStorage. (Mayank Bansal via
vinodkv)
Release 2.2.0 - 2013-10-13
INCOMPATIBLE CHANGES

87
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryReader.java Normal file
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@ -0,0 +1,87 @@
/**
* 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.util.Map;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
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.ApplicationAttemptHistoryData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationHistoryData;
import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ContainerHistoryData;
@InterfaceAudience.Public
@InterfaceStability.Unstable
public interface ApplicationHistoryReader {
/**
* This method returns Application {@link ApplicationHistoryData} for the specified
* {@link ApplicationId}.
*
* @return {@link ApplicationHistoryData} for the ApplicationId.
*/
ApplicationHistoryData getApplication(ApplicationId appId);
/**
* This method returns all Application {@link ApplicationHistoryData}s
*
* @return map {@link ApplicationId, @link ApplicationHistoryData}s.
*/
Map<ApplicationId, ApplicationHistoryData> getAllApplications();
/**
* Application can have multiple application attempts
* {@link ApplicationAttemptHistoryData}. This method returns the all
* {@link ApplicationAttemptHistoryData}s for the Application.
*
* @return all {@link ApplicationAttemptHistoryData}s for the Application.
*/
Map<ApplicationAttemptId, ApplicationAttemptHistoryData> getApplicationAttempts(
ApplicationId appId);
/**
* This method returns {@link ApplicationAttemptHistoryData} for specified
* {@link ApplicationId}.
*
* @param {@link ApplicationAttemptId}
* @return {@link ApplicationAttemptHistoryData} for ApplicationAttemptId
*/
ApplicationAttemptHistoryData getApplicationAttempt(
ApplicationAttemptId appAttemptId);
/**
* This method returns {@link Container} for specified {@link ContainerId}.
*
* @param {@link ContainerId}
* @return {@link Container} for ContainerId
*/
ContainerHistoryData getAMContainer(ContainerId containerId);
/**
* This method returns {@link ContainerHistoryData} for specified
* {@link ApplicationAttemptId}.
*
* @param {@link ApplicationAttemptId}
* @return {@link ContainerHistoryData} for ApplicationAttemptId
*/
ContainerHistoryData getContainer(ApplicationAttemptId appAttemptId);
}