hadoop GenericDiagnosticsCollector 源码

haddop GenericDiagnosticsCollector 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/GenericDiagnosticsCollector.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;

import java.util.Set;

/**
 * Generic interface that can be used for collecting diagnostics.
 */
public class GenericDiagnosticsCollector implements DiagnosticsCollector {

  public final static String RESOURCE_DIAGNOSTICS_PREFIX =
      "insufficient resources=";

  public final static String PLACEMENT_CONSTRAINT_DIAGNOSTICS_PREFIX =
      "unsatisfied PC expression=";

  public final static String PARTITION_DIAGNOSTICS_PREFIX =
      "unsatisfied node partition=";

  private String diagnostics;

  private String details;

  public void collect(String diagnosticsInfo, String detailsInfo) {
    this.diagnostics = diagnosticsInfo;
    this.details = detailsInfo;
  }

  public String getDiagnostics() {
    return diagnostics;
  }

  public String getDetails() {
    return details;
  }

  public void collectResourceDiagnostics(ResourceCalculator rc,
      Resource required, Resource available) {
    Set<String> insufficientResourceNames =
        rc.getInsufficientResourceNames(required, available);
    this.diagnostics = new StringBuilder(RESOURCE_DIAGNOSTICS_PREFIX)
        .append(insufficientResourceNames).toString();
    this.details = new StringBuilder().append("required=").append(required)
        .append(", available=").append(available).toString();
  }

  public void collectPlacementConstraintDiagnostics(PlacementConstraint pc,
      PlacementConstraint.TargetExpression.TargetType targetType) {
    this.diagnostics =
        new StringBuilder(PLACEMENT_CONSTRAINT_DIAGNOSTICS_PREFIX).append("\"")
            .append(pc).append("\", target-type=").append(targetType)
            .toString();
    this.details = null;
  }

  public void collectPartitionDiagnostics(
      String requiredPartition, String nodePartition) {
    this.diagnostics =
        new StringBuilder(PARTITION_DIAGNOSTICS_PREFIX).append(nodePartition)
            .append(", required-partition=").append(requiredPartition)
            .toString();
    this.details = null;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop ActivitiesLogger 源码

hadoop ActivitiesManager 源码

hadoop ActivitiesUtils 源码

hadoop ActivityDiagnosticConstant 源码

hadoop ActivityLevel 源码

hadoop ActivityNode 源码

hadoop ActivityState 源码

hadoop AllocationActivity 源码

hadoop AllocationState 源码

hadoop AppAllocation 源码