hadoop DiagnosticsCollector 源码
haddop DiagnosticsCollector 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/scheduler/activities/DiagnosticsCollector.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.scheduler.activities;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.resource.PlacementConstraint;
import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
/**
* Generic interface that can be used for collecting diagnostics.
*/
public interface DiagnosticsCollector {
void collect(String diagnostics, String details);
String getDiagnostics();
String getDetails();
void collectResourceDiagnostics(ResourceCalculator rc,
Resource required, Resource available);
void collectPlacementConstraintDiagnostics(PlacementConstraint pc,
PlacementConstraint.TargetExpression.TargetType targetType);
void collectPartitionDiagnostics(
String requiredPartition, String nodePartition);
}
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