edu.berkeley.chukwa_xtrace.TestXtrExtract.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 edu.berkeley.chukwa_xtrace;

import java.io.IOException;
import java.util.Calendar;
import junit.framework.TestCase;
import org.apache.hadoop.chukwa.ChukwaArchiveKey;
import org.apache.hadoop.chukwa.ChunkImpl;
import org.apache.hadoop.chukwa.extraction.archive.ChukwaArchiveBuilder;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.MiniMRCluster;
import org.apache.hadoop.util.ToolRunner;

public class TestXtrExtract extends TestCase {

    public void writeASinkFile(Configuration conf, FileSystem fileSys, Path dest, int chunks) throws IOException {
        FSDataOutputStream out = fileSys.create(dest);

        SequenceFile.Writer seqFileWriter = SequenceFile.createWriter(conf, out, ChukwaArchiveKey.class,
                ChunkImpl.class, SequenceFile.CompressionType.NONE, null);

        //FIXME: do write here

        seqFileWriter.close();
        out.close();
    }

    static final int NUM_HADOOP_SLAVES = 1;
    static final Path OUTPUT_DIR = new Path("/test/out/");
    static final Path INPUT_DIR = new Path("/test/in/");

    public void testArchiving() throws Exception {

        System.out.println("starting archive test");
        Configuration conf = new Configuration();
        System.setProperty("hadoop.log.dir", System.getProperty("test.build.data", "/tmp"));
        MiniDFSCluster dfs = new MiniDFSCluster(conf, NUM_HADOOP_SLAVES, true, null);
        FileSystem fileSys = dfs.getFileSystem();
        fileSys.delete(OUTPUT_DIR, true);//nuke output dir

        writeASinkFile(conf, fileSys, INPUT_DIR, 1000);

        FileStatus fstat = fileSys.getFileStatus(INPUT_DIR);
        assertTrue(fstat.getLen() > 10);

        System.out.println("filesystem is " + fileSys.getUri());
        conf.set("fs.default.name", fileSys.getUri().toString());
        conf.setInt("io.sort.mb", 1);
        conf.setInt("io.sort.factor", 5);
        conf.setInt("mapred.tasktracker.map.tasks.maximum", 2);
        conf.setInt("mapred.tasktracker.reduce.tasks.maximum", 2);

        MiniMRCluster mr = new MiniMRCluster(NUM_HADOOP_SLAVES, fileSys.getUri().toString(), 1);
        String[] archiveArgs = { INPUT_DIR.toString(), fileSys.getUri().toString() + OUTPUT_DIR.toString() };

        JobConf jc = mr.createJobConf(new JobConf(conf));
        assertEquals("true", jc.get("archive.groupByClusterName"));
        assertEquals(1, jc.getInt("io.sort.mb", 5));

        int returnVal = ToolRunner.run(jc, new XtrExtract(), archiveArgs);
        assertEquals(0, returnVal);
        fstat = fileSys.getFileStatus(new Path("/chukwa/archives/foocluster/HadoopLogProcessor_2008_05_29.arc"));
        assertTrue(fstat.getLen() > 10);

        Thread.sleep(1000);

        System.out.println("done!");
    }
}