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From ash211 <...@git.apache.org>
Subject [GitHub] spark pull request #17401: [SPARK-18364][YARN] Expose metrics for YarnShuffl...
Date Fri, 24 Mar 2017 06:06:31 GMT
Github user ash211 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/17401#discussion_r107840148
  
    --- Diff: common/network-yarn/src/main/java/org/apache/spark/network/yarn/YarnShuffleServiceMetrics.java
---
    @@ -0,0 +1,118 @@
    +/*
    + * 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.spark.network.yarn;
    +
    +import com.codahale.metrics.*;
    +import org.apache.hadoop.metrics2.MetricsCollector;
    +import org.apache.hadoop.metrics2.MetricsInfo;
    +import org.apache.hadoop.metrics2.MetricsRecordBuilder;
    +import org.apache.hadoop.metrics2.MetricsSource;
    +
    +import java.util.Map;
    +
    +/**
    + * Modeled off of YARN's NodeManagerMetrics.
    + */
    +public class YarnShuffleServiceMetrics implements MetricsSource {
    +
    +  private final MetricSet metricSet;
    +
    +  public YarnShuffleServiceMetrics(MetricSet metricSet) {
    +    this.metricSet = metricSet;
    +  }
    +
    +  /**
    +   * Get metrics from the source
    +   *
    +   * @param collector to contain the resulting metrics snapshot
    +   * @param all       if true, return all metrics even if unchanged.
    +   */
    +  @Override
    +  public void getMetrics(MetricsCollector collector, boolean all) {
    --- End diff --
    
    should be able to, I'm working on creating one now.  By correctness, I think you mostly
mean that the values passed through are the same, even though the naming schemes are different?


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