| /** |
| * 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; |
| } |
| } |