org.apache.whirr.service.hadoop.integration.benchmark.HadoopServiceTestDFSIOBenchmark.java Source code

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/**
 * 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.whirr.service.hadoop.integration.benchmark;

import org.apache.hadoop.fs.TestDFSIO;
import org.apache.hadoop.mapred.JobConf;
import org.apache.whirr.service.hadoop.integration.HadoopServiceController;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HadoopServiceTestDFSIOBenchmark {
    private static final Logger LOG = LoggerFactory.getLogger(HadoopServiceTestDFSIOBenchmark.class);

    private static boolean shutdownClusterOnTearDown;
    private static HadoopServiceController controller;

    @BeforeClass
    public static void setUp() throws Exception {
        HadoopServiceController.getInstance("whirr-hadoop-test.properties");
        shutdownClusterOnTearDown = controller.ensureClusterRunning();
    }

    @AfterClass
    public static void tearDown() throws Exception {
        if (shutdownClusterOnTearDown) {
            controller.shutdown();
        }
    }

    @Test
    public void test() throws Exception {
        // We use TestDFSIO's Tool interface so we can pass the configuration,
        // but this is only available after Hadoop 0.20.2
        // (https://issues.apache.org/jira/browse/MAPREDUCE-1832)
        // so we use a local copy of TestDFSIO with this patch
        int runs = Integer.parseInt(System.getProperty("testDFSIORuns", "3"));
        for (int i = 0; i < runs; i++) {
            LOG.info("Starting TestDFSIO run {} of {}", i + 1, runs);
            TestDFSIO testDFSIO = new TestDFSIO();
            JobConf jobConf = controller.getJobConf();
            jobConf.set("test.build.data", "/user/root/benchmark/TestDFSIO");
            testDFSIO.setConf(jobConf);
            testDFSIO.run("-write -nrFiles 10 -fileSize 1000".split(" "));
            testDFSIO.run("-read -nrFiles 10 -fileSize 1000".split(" "));
            testDFSIO.run(new String[] { "-clean" });
            LOG.info("Completed TestDFSIO run {} of {}", i + 1, runs);
        }
    }
}