hadoop NullRMStateStore 源码

haddop NullRMStateStore 代码

文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/NullRMStateStore.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.resourcemanager.recovery;


import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.token.delegation.DelegationKey;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.proto.YarnProtos.ReservationAllocationStateProto;
import org.apache.hadoop.yarn.security.client.RMDelegationTokenIdentifier;
import org.apache.hadoop.yarn.server.records.Version;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.AMRMTokenSecretManagerState;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationAttemptStateData;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationStateData;

import java.security.PrivateKey;
import java.security.cert.X509Certificate;

@Unstable
public class NullRMStateStore extends RMStateStore {

  @Override
  protected void initInternal(Configuration conf) throws Exception {
    // Do nothing
  }

  @Override
  protected void startInternal() throws Exception {
    // Do nothing
  }

  @Override
  protected void closeInternal() throws Exception {
    // Do nothing
  }

  @Override
  public synchronized long getAndIncrementEpoch() throws Exception {
    return 0L;
  }

  @Override
  public RMState loadState() throws Exception {
    throw new UnsupportedOperationException("Cannot load state from null store");
  }

  @Override
  protected void storeApplicationStateInternal(ApplicationId appId,
      ApplicationStateData appStateData) throws Exception {
    // Do nothing
  }

  @Override
  protected void storeApplicationAttemptStateInternal(ApplicationAttemptId attemptId,
      ApplicationAttemptStateData attemptStateData) throws Exception {
    // Do nothing
  }

  @Override
  protected void removeApplicationStateInternal(ApplicationStateData appState)
      throws Exception {
    // Do nothing
  }

  @Override
  public void storeRMDelegationTokenState(
      RMDelegationTokenIdentifier rmDTIdentifier, Long renewDate)
      throws Exception {
    // Do nothing
  }

  @Override
  public void removeRMDelegationTokenState(RMDelegationTokenIdentifier rmDTIdentifier)
      throws Exception {
    // Do nothing
  }

  @Override
  protected void updateRMDelegationTokenState(
      RMDelegationTokenIdentifier rmDTIdentifier, Long renewDate)
      throws Exception {
    // Do nothing
  }

  @Override
  public void storeRMDTMasterKeyState(DelegationKey delegationKey) throws Exception {
    // Do nothing
  }

  @Override
  protected void storeReservationState(
      ReservationAllocationStateProto reservationAllocation, String planName,
      String reservationIdName) throws Exception {
    // Do nothing
  }

  @Override
  protected void removeReservationState(String planName,
      String reservationIdName) throws Exception {
      // Do nothing
  }

  @Override
  public void removeRMDTMasterKeyState(DelegationKey delegationKey) throws Exception {
    // Do nothing
  }

  @Override
  protected void updateApplicationStateInternal(ApplicationId appId,
      ApplicationStateData appStateData) throws Exception {
    // Do nothing 
  }

  @Override
  protected void updateApplicationAttemptStateInternal(ApplicationAttemptId attemptId,
      ApplicationAttemptStateData attemptStateData) throws Exception {
  }

  @Override
  public synchronized void removeApplicationAttemptInternal(
      ApplicationAttemptId attemptId) throws Exception {
    // Do nothing
  }

  @Override
  public void checkVersion() throws Exception {
    // Do nothing
  }

  @Override
  protected Version loadVersion() throws Exception {
    // Do nothing
    return null;
  }

  @Override
  protected void storeVersion() throws Exception {
    // Do nothing
  }

  @Override
  protected Version getCurrentVersion() {
    // Do nothing
    return null;
  }

  @Override
  public void storeOrUpdateAMRMTokenSecretManagerState(
      AMRMTokenSecretManagerState state, boolean isUpdate) {
    //DO Nothing
  }

  @Override
  public void deleteStore() throws Exception {
    // Do nothing
  }

  @Override
  public void removeApplication(ApplicationId removeAppId) throws Exception {
    // Do nothing
  }

  @Override
  protected void storeProxyCACertState(
      X509Certificate caCert, PrivateKey caPrivateKey) throws Exception {
    // Do nothing
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop FileSystemRMStateStore 源码

hadoop LeveldbRMStateStore 源码

hadoop MemoryRMStateStore 源码

hadoop RMStateStore 源码

hadoop RMStateStoreAMRMTokenEvent 源码

hadoop RMStateStoreAppAttemptEvent 源码

hadoop RMStateStoreAppEvent 源码

hadoop RMStateStoreEvent 源码

hadoop RMStateStoreEventType 源码

hadoop RMStateStoreFactory 源码