/*
* 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.hadoop.mapred;
import org.apache.hadoop.metrics2.MetricsRecordBuilder;
import org.apache.hadoop.metrics2.MetricsSource;
import org.apache.hadoop.metrics2.impl.MetricsSystemImpl;
import org.apache.hadoop.metrics2.MetricsSystem;
import static org.apache.hadoop.test.MetricsAsserts.*;
import org.jboss.netty.channel.ChannelFuture;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.apache.hadoop.test.MockitoMaker.*;
public class TestShuffleHandler {
static final long MiB = 1024 * 1024;
@Test public void testSerializeMeta() throws Exception {
assertEquals(1, ShuffleHandler.deserializeMetaData(
ShuffleHandler.serializeMetaData(1)));
assertEquals(-1, ShuffleHandler.deserializeMetaData(
ShuffleHandler.serializeMetaData(-1)));
assertEquals(8080, ShuffleHandler.deserializeMetaData(
ShuffleHandler.serializeMetaData(8080)));
}
@Test public void testShuffleMetrics() throws Exception {
MetricsSystem ms = new MetricsSystemImpl();
ShuffleHandler sh = new ShuffleHandler(ms);
ChannelFuture cf = make(stub(ChannelFuture.class).
returning(true, false).from.isSuccess());
sh.metrics.shuffleConnections.incr();
sh.metrics.shuffleOutputBytes.incr(1*MiB);
sh.metrics.shuffleConnections.incr();
sh.metrics.shuffleOutputBytes.incr(2*MiB);
checkShuffleMetrics(ms, 3*MiB, 0 , 0, 2);
sh.metrics.operationComplete(cf);
sh.metrics.operationComplete(cf);
checkShuffleMetrics(ms, 3*MiB, 1, 1, 0);
}
static void checkShuffleMetrics(MetricsSystem ms, long bytes, int failed,
int succeeded, int connections) {
MetricsSource source = ms.getSource("ShuffleMetrics");
MetricsRecordBuilder rb = getMetrics(source);
assertCounter("ShuffleOutputBytes", bytes, rb);
assertCounter("ShuffleOutputsFailed", failed, rb);
assertCounter("ShuffleOutputsOK", succeeded, rb);
assertGauge("ShuffleConnections", connections, rb);
}
}