hadoop AbstractAMRMProxyPolicy 源码
haddop AbstractAMRMProxyPolicy 代码
文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/policies/amrmproxy/AbstractAMRMProxyPolicy.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.federation.policies.amrmproxy;
import java.util.Map;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.server.federation.policies.AbstractConfigurableFederationPolicy;
import org.apache.hadoop.yarn.server.federation.policies.dao.WeightedPolicyInfo;
import org.apache.hadoop.yarn.server.federation.policies.exceptions.FederationPolicyInitializationException;
import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId;
import org.apache.hadoop.yarn.server.federation.store.records.SubClusterIdInfo;
/**
* Base abstract class for {@link FederationAMRMProxyPolicy} implementations,
* that provides common validation for reinitialization.
*/
public abstract class AbstractAMRMProxyPolicy extends
AbstractConfigurableFederationPolicy implements FederationAMRMProxyPolicy {
@Override
public void validate(WeightedPolicyInfo newPolicyInfo)
throws FederationPolicyInitializationException {
super.validate(newPolicyInfo);
Map<SubClusterIdInfo, Float> newWeights =
newPolicyInfo.getAMRMPolicyWeights();
if (newWeights == null || newWeights.size() < 1) {
throw new FederationPolicyInitializationException(
"Weight vector cannot be null/empty.");
}
}
@Override
public void notifyOfResponse(SubClusterId subClusterId,
AllocateResponse response) throws YarnException {
// By default, a stateless policy does not care about responses
}
}
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