org.apache.accumulo.server.test.functional.RunTests.java Source code

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Here is the source code for org.apache.accumulo.server.test.functional.RunTests.java

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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.accumulo.server.test.functional;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;

import org.apache.accumulo.server.logger.IdentityReducer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.log4j.Logger;

/**
 * Runs the functional tests via map-reduce.
 * 
 * First, be sure everything is compiled.
 * 
 * Second, get a list of the tests you want to run:
 * 
 * <pre>
 *  $ python test/system/auto/run.py -l > tests
 * </pre>
 * 
 * Put the list of tests into HDFS:
 * 
 * <pre>
 *  $ hadoop fs -put tests /user/hadoop/tests
 * </pre>
 * 
 * Run the map-reduce job:
 * 
 * <pre>
 *  $ ./bin/accumulo accumulo.server.test.functional.RunTests /user/hadoop/tests /user/hadoop/results
 * </pre>
 * 
 * Note that you will need to have some configuration in conf/accumulo-site.xml (to locate zookeeper). The map-reduce jobs will not use your local accumulo
 * instance.
 * 
 */
public class RunTests extends Configured implements Tool {

    static final public String JOB_NAME = "Functional Test Runner";
    private static final Logger log = Logger.getLogger(RunTests.class);

    private Job job = null;

    static public class TestMapper extends Mapper<LongWritable, Text, Text, Text> {

        @Override
        protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
            List<String> cmd = Arrays.asList("/usr/bin/python", "test/system/auto/run.py", "-t", value.toString());
            log.info("Running test " + cmd);
            ProcessBuilder pb = new ProcessBuilder(cmd);
            pb.directory(new File(context.getConfiguration().get("accumulo.home")));
            pb.redirectErrorStream(true);
            Process p = pb.start();
            p.getOutputStream().close();
            InputStream out = p.getInputStream();
            byte[] buffer = new byte[1024];
            int len = 0;
            Text result = new Text();
            try {
                while ((len = out.read(buffer)) > 0) {
                    log.info("More: " + new String(buffer, 0, len));
                    result.append(buffer, 0, len);
                }
            } catch (Exception ex) {
                log.error(ex, ex);
            }
            p.waitFor();
            context.write(value, result);
        }

    }

    @Override
    public int run(String[] args) throws Exception {
        job = new Job(getConf(), JOB_NAME);
        job.setJarByClass(this.getClass());

        // this is like 1-2 tests per mapper
        Configuration conf = job.getConfiguration();
        conf.setInt("mapred.max.split.size", 40);
        conf.set("accumulo.home", System.getenv("ACCUMULO_HOME"));
        conf.setInt("mapred.task.timeout", 8 * 60 * 1000);
        conf.setBoolean("mapred.map.tasks.speculative.execution", false);

        // set input
        job.setInputFormatClass(TextInputFormat.class);
        TextInputFormat.setInputPaths(job, new Path(args[0]));

        // set output
        job.setOutputFormatClass(TextOutputFormat.class);
        FileSystem fs = FileSystem.get(conf);
        Path destination = new Path(args[1]);
        if (fs.exists(destination)) {
            log.info("Deleting existing output directory " + args[1]);
            fs.delete(destination, true);
        }
        TextOutputFormat.setOutputPath(job, destination);

        // configure default reducer: put the results into one file
        job.setNumReduceTasks(1);

        // set mapper
        job.setMapperClass(TestMapper.class);
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(Text.class);

        // don't do anything with the results (yet) a summary would be nice
        job.setReducerClass(IdentityReducer.class);

        // submit the job
        log.info("Starting tests");
        return 0;
    }

    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        RunTests tests = new RunTests();
        ToolRunner.run(new Configuration(), tests, args);
        tests.job.waitForCompletion(true);
        if (!tests.job.isSuccessful())
            System.exit(1);
    }

}