Example usage for org.apache.hadoop.mapred JobConf setOutputFormat

Introduction

In this page you can find the example usage for org.apache.hadoop.mapred JobConf setOutputFormat.

Prototype

public void setOutputFormat(Class<? extends OutputFormat> theClass) 

Source Link

Document

Set the OutputFormat implementation for the map-reduce job.

Usage

From source file:ivory.server.RunDistributedRetrievalServers.java

License:Apache License

/**
 * Runs this tool./*w  w  w  .j  a  v a2  s  .c o m*/
 */
public int run(String[] args) throws Exception {
    if (args.length < 2) {
        printUsage();
        return -1;
    }

    String configFile = args[0];

    FileSystem fs = FileSystem.get(getConf());

    Document d = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(fs.open(new Path(configFile)));

    sLogger.info("Reading configuration to determine number of servers to launch:");
    List<String> sids = new ArrayList<String>();
    NodeList servers = d.getElementsByTagName("server");
    for (int i = 0; i < servers.getLength(); i++) {
        Node node = servers.item(i);

        // get server id
        String sid = XMLTools.getAttributeValue(node, "id", null);
        if (sid == null) {
            throw new Exception("Must specify a query id attribute for every server!");
        }

        sLogger.info(" - sid: " + sid);
        sids.add(sid);
    }

    int port = 7000;
    int numServers = sids.size();
    String configPath = args[1];

    if (fs.exists(new Path(configPath))) {
        fs.delete(new Path(configPath), true);
    }

    String fname = appendPath(configPath, "config-" + numServers + ".txt");
    sLogger.info("Writing configuration to: " + fname);
    StringBuffer sb = new StringBuffer();
    for (int n = 0; n < numServers; n++) {
        port++;
        sb.append(sids.get(n) + " " + port + "\n");
    }

    FSDataOutputStream out = fs.create(new Path(fname), true);
    out.writeBytes(sb.toString());
    out.close();

    JobConf conf = new JobConf(RetrievalServer.class);

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NLineInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(ServerMapper.class);

    FileInputFormat.setInputPaths(conf, new Path(fname));

    conf.set("Ivory.ConfigFile", configFile);
    conf.set("Ivory.ConfigPath", configPath);
    conf.setJobName("RetrievalServers");
    //conf.set("mapred.child.java.opts", "-Xmx2048m");
    conf.set("mapred.child.java.opts", "-Xmx2048m");
    // conf.set("mapred.job.queue.name", "search");

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    sLogger.info("Waiting for servers to start up...");

    // poll HDFS for hostnames and ports
    boolean allStarted = true;
    do {
        allStarted = true;
        for (int n = 0; n < numServers; n++) {
            String f = appendPath(configPath, sids.get(n) + ".host");
            if (!fs.exists(new Path(f))) {
                allStarted = false;
            }
        }
        Thread.sleep(10000);
        sLogger.info(" ...");
    } while (!allStarted);

    // poll HDFS for ready signal that the index is ready
    boolean allReady = true;
    do {
        allReady = true;
        for (int n = 0; n < numServers; n++) {
            String f = appendPath(configPath, sids.get(n) + ".ready");
            if (!fs.exists(new Path(f))) {
                allReady = false;
            }
        }
        Thread.sleep(10000);
        sLogger.info(" ...");
    } while (!allReady);

    sLogger.info("All servers ready!");
    sLogger.info("Host information:");
    for (int n = 0; n < numServers; n++) {
        String f = appendPath(configPath, sids.get(n) + ".host");
        sLogger.info(" sid=" + sids.get(n) + ", " + FSProperty.readString(fs, f));
    }

    return 0;
}

---

From source file:ivory.server.RunRetrievalBroker.java

License:Apache License

/**
 * Runs this tool.//from  w w w. j  a v  a2 s. co m
 */
public int run(String[] args) throws Exception {
    if (args.length != 2) {
        printUsage();
        return -1;
    }

    String configPath = args[0];

    FileSystem fs = FileSystem.get(getConf());

    String ids = "";

    sLogger.info("Starting retrieval broker...");
    sLogger.info("server config path: " + configPath);
    FileStatus[] stats = fs.listStatus(new Path(configPath));

    if (stats == null) {
        sLogger.info("Error: " + configPath + " not found!");
        return -1;
    }

    String scoreMergeModel = args[1];
    if (!scoreMergeModel.equals("sort") && !scoreMergeModel.equals("normalize")) {
        throw new RuntimeException("Unsupported score merging model: " + args[1]);
    }

    for (int i = 0; i < stats.length; i++) {
        String s = stats[i].getPath().toString();
        if (!s.endsWith(".host"))
            continue;

        String sid = s.substring(s.lastIndexOf("/") + 1, s.lastIndexOf(".host"));
        sLogger.info("sid=" + sid + ", host=" + s);

        if (ids.length() != 0)
            ids += ";";

        ids += sid;
    }

    JobConf conf = new JobConf(RunRetrievalBroker.class);
    conf.setJobName("RetrievalBroker");

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NullInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(ServerMapper.class);

    conf.set("serverIDs", ids);
    conf.set("ServerAddressPath", configPath);
    conf.set("ScoreMergeModel", scoreMergeModel);
    conf.set("mapred.child.java.opts", "-Xmx2048m");

    fs.delete(new Path(appendPath(configPath, "broker.ready")), true);

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    sLogger.info("broker started!");

    while (true) {
        String f = appendPath(configPath, "broker.ready");
        if (fs.exists(new Path(f))) {
            break;
        }

        Thread.sleep(5000);
    }

    String s = FSProperty.readString(FileSystem.get(conf), appendPath(configPath, "broker.ready"));
    sLogger.info("broker ready at " + s);

    return 0;
}

---

From source file:ivory.smrf.retrieval.distributed.RunDistributedRetrievalServers.java

License:Apache License

/**
 * Runs this tool.//w  w w  .  j  ava 2s  .  co m
 */
public int run(String[] args) throws Exception {
    if (args.length < 2) {
        printUsage();
        return -1;
    }

    String configFile = args[0];

    FileSystem fs = FileSystem.get(getConf());

    Document d = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(fs.open(new Path(configFile)));

    sLogger.info("Reading configuration to determine number of servers to launch:");
    List<String> sids = new ArrayList<String>();
    NodeList servers = d.getElementsByTagName("server");
    for (int i = 0; i < servers.getLength(); i++) {
        Node node = servers.item(i);

        // get server id
        String sid = XMLTools.getAttributeValue(node, "id", null);
        if (sid == null) {
            throw new Exception("Must specify a query id attribute for every server!");
        }

        sLogger.info(" - sid: " + sid);
        sids.add(sid);
    }

    int port = 7000;
    int numServers = sids.size();
    String configPath = args[1];

    if (fs.exists(new Path(configPath))) {
        fs.delete(new Path(configPath), true);
    }

    String fname = appendPath(configPath, "config-" + numServers + ".txt");
    sLogger.info("Writing configuration to: " + fname);
    StringBuffer sb = new StringBuffer();
    for (int n = 0; n < numServers; n++) {
        port++;
        sb.append(sids.get(n) + " " + port + "\n");
    }

    FSDataOutputStream out = fs.create(new Path(fname), true);
    out.writeBytes(sb.toString());
    out.close();

    JobConf conf = new JobConf(getConf(), RetrievalServer.class);

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NLineInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(ServerMapper.class);

    FileInputFormat.setInputPaths(conf, new Path(fname));

    conf.set("Ivory.ConfigFile", configFile);
    conf.set("Ivory.ConfigPath", configPath);
    conf.setJobName("RetrievalServers");
    //conf.set("mapred.child.java.opts", "-Xmx2048m");
    conf.set("mapred.child.java.opts", "-Xmx2048m");
    // conf.set("mapred.job.queue.name", "search");

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    sLogger.info("Waiting for servers to start up...");

    // poll HDFS for hostnames and ports
    boolean allStarted = true;
    do {
        allStarted = true;
        for (int n = 0; n < numServers; n++) {
            String f = appendPath(configPath, sids.get(n) + ".host");
            if (!fs.exists(new Path(f))) {
                allStarted = false;
            }
        }
        Thread.sleep(10000);
        sLogger.info(" ...");
    } while (!allStarted);

    // poll HDFS for ready signal that the index is ready
    boolean allReady = true;
    do {
        allReady = true;
        for (int n = 0; n < numServers; n++) {
            String f = appendPath(configPath, sids.get(n) + ".ready");
            if (!fs.exists(new Path(f))) {
                allReady = false;
            }
        }
        Thread.sleep(10000);
        sLogger.info(" ...");
    } while (!allReady);

    sLogger.info("All servers ready!");
    sLogger.info("Host information:");
    for (int n = 0; n < numServers; n++) {
        String f = appendPath(configPath, sids.get(n) + ".host");
        sLogger.info(" sid=" + sids.get(n) + ", " + FSProperty.readString(fs, f));
    }

    return 0;
}

---

From source file:ivory.smrf.retrieval.distributed.RunQueryBroker.java

License:Apache License

/**
 * Runs this tool.//from   w  w  w  .  j ava 2s . c  o m
 */
public int run(String[] args) throws Exception {
    if (args.length != 5) {
        printUsage();
        return -1;
    }

    String configPath = args[0];
    FileSystem fs = FileSystem.get(getConf());

    sLogger.info("server config path: " + configPath);
    FileStatus[] stats = fs.listStatus(new Path(configPath));

    if (stats == null) {
        sLogger.info("Error: " + configPath + " not found!");
        return -1;
    }

    String runtag = args[1];
    String queriesFilePath = args[2];
    String resultsFilePath = args[3];
    int numHits = Integer.parseInt(args[4]);

    JobConf conf = new JobConf(getConf(), RunQueryBroker.class);
    conf.setJobName("RunQueryBroker");

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NullInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(Server.class);

    conf.set("QueriesFilePath", queriesFilePath);
    conf.set("ConfigPath", configPath);
    conf.set("ResultsFilePath", resultsFilePath);
    conf.set("Runtag", runtag);
    conf.setInt("NumHits", numHits);

    conf.set("mapred.child.java.opts", "-Xmx2048m");

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    sLogger.info("runner started!");

    return 0;
}

---

From source file:ivory.smrf.retrieval.distributed.RunRetrievalBroker.java

License:Apache License

/**
 * Runs this tool./*from  w  w w  .  ja v a  2  s .co m*/
 */
public int run(String[] args) throws Exception {
    if (args.length != 2) {
        printUsage();
        return -1;
    }

    String configPath = args[0];

    FileSystem fs = FileSystem.get(getConf());

    String ids = "";

    sLogger.info("Starting retrieval broker...");
    sLogger.info("server config path: " + configPath);
    FileStatus[] stats = fs.listStatus(new Path(configPath));

    if (stats == null) {
        sLogger.info("Error: " + configPath + " not found!");
        return -1;
    }

    String scoreMergeModel = args[1];
    if (!scoreMergeModel.equals("sort") && !scoreMergeModel.equals("normalize")) {
        throw new RuntimeException("Unsupported score merging model: " + args[1]);
    }

    for (int i = 0; i < stats.length; i++) {
        String s = stats[i].getPath().toString();
        if (!s.endsWith(".host"))
            continue;

        String sid = s.substring(s.lastIndexOf("/") + 1, s.lastIndexOf(".host"));
        sLogger.info("sid=" + sid + ", host=" + s);

        if (ids.length() != 0)
            ids += ";";

        ids += sid;
    }

    JobConf conf = new JobConf(getConf(), RunRetrievalBroker.class);
    conf.setJobName("RetrievalBroker");

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NullInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(ServerMapper.class);

    conf.set("serverIDs", ids);
    conf.set("ServerAddressPath", configPath);
    conf.set("ScoreMergeModel", scoreMergeModel);
    conf.set("mapred.child.java.opts", "-Xmx2048m");

    fs.delete(new Path(appendPath(configPath, "broker.ready")), true);

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    sLogger.info("broker started!");

    while (true) {
        String f = appendPath(configPath, "broker.ready");
        if (fs.exists(new Path(f))) {
            break;
        }

        Thread.sleep(5000);
    }

    String s = FSProperty.readString(FileSystem.get(conf), appendPath(configPath, "broker.ready"));
    sLogger.info("broker ready at " + s);

    return 0;
}

---

From source file:ivory.smrf.retrieval.RunQueryBroker.java

License:Apache License

/**
 * Runs this tool./*from  w  ww .  ja  va 2  s . co  m*/
 */
public int run(String[] args) throws Exception {
    if (args.length != 5) {
        printUsage();
        return -1;
    }

    String configPath = args[0];
    FileSystem fs = FileSystem.get(getConf());

    sLogger.info("server config path: " + configPath);
    FileStatus[] stats = fs.listStatus(new Path(configPath));

    if (stats == null) {
        sLogger.info("Error: " + configPath + " not found!");
        return -1;
    }

    String runtag = args[1];
    String queriesFilePath = args[2];
    String resultsFilePath = args[3];
    int numHits = Integer.parseInt(args[4]);

    JobConf conf = new JobConf(RunQueryBroker.class);
    conf.setJobName("RunQueryBroker");

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NullInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(Server.class);

    conf.set("QueriesFilePath", queriesFilePath);
    conf.set("ConfigPath", configPath);
    conf.set("ResultsFilePath", resultsFilePath);
    conf.set("Runtag", runtag);
    conf.setInt("NumHits", numHits);

    conf.set("mapred.child.java.opts", "-Xmx2048m");

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    sLogger.info("runner started!");

    return 0;
}

---

From source file:ivory.smrf.retrieval.RunQueryHDFS.java

License:Apache License

public int run(String[] args) throws Exception {
    if (args.length != 2) {
        System.out.println("usage: [queries-file] [models-file]");
        ToolRunner.printGenericCommandUsage(System.out);
        return -1;
    }//  www .  j  a  v a2  s. c  om

    String argsStr = Joiner.on(";").join(args);

    JobConf conf = new JobConf(getConf(), RunQueryHDFS.class);
    conf.setJobName("RunQueryHDFS");

    conf.setNumMapTasks(1);
    conf.setNumReduceTasks(0);

    conf.setInputFormat(NullInputFormat.class);
    conf.setOutputFormat(NullOutputFormat.class);
    conf.setMapperClass(QueryRunner.class);

    conf.set("args", argsStr);
    conf.set("mapred.child.java.opts", "-Xmx16g");

    LOG.info("argsStr: " + argsStr);

    JobClient client = new JobClient(conf);
    client.submitJob(conf);

    LOG.info("runner started!");

    return 0;
}

---

From source file:job.uncombine.compressed.BigBuildInvertedIndex.java

License:Apache License

/**
 * Runs this tool./* w  w  w.  j a  v  a 2 s  .c om*/
 */
public int run(String[] args) throws Exception {

    //long GB = 1024 * 1024 * 1024;
    //long totalDataSize = 1 * GB;

    int reduceNumArray[] = { 9, 18 };
    int splitSizeMBArray[] = { 64, 128, 256 };
    int xmxArray[] = { 1000, 2000, 3000, 4000 };
    int xmsArray[] = { 0, 1 };
    int ismbArray[] = { 200, 400, 600, 800 };

    for (int splitIndex = 0; splitIndex < splitSizeMBArray.length; splitIndex++) {
        for (int reduceNumIndex = 0; reduceNumIndex < reduceNumArray.length; reduceNumIndex++) {
            for (int xmxIndex = 0; xmxIndex < xmxArray.length; xmxIndex++) {
                for (int xmsIndex = 0; xmsIndex < xmsArray.length; xmsIndex++) {
                    for (int ismbIndex = 0; ismbIndex < ismbArray.length; ismbIndex++) {

                        int reduceNum = reduceNumArray[reduceNumIndex];
                        int splitMB = splitSizeMBArray[splitIndex];
                        int xmx = xmxArray[xmxIndex];
                        int xms = xmsArray[xmsIndex] * xmx;
                        int ismb = ismbArray[ismbIndex];

                        JobConf conf = new JobConf(getConf(), BigBuildInvertedIndex.class);

                        conf.setLong("mapred.min.split.size", SplitTable.getMapred_min_split_size(splitMB));
                        conf.setLong("mapred.max.split.size", SplitTable.getMapred_max_split_size(splitMB));

                        //conf.setInt("my.sample.split.num", (int) (totalDataSize / (splitMB * 1024 * 1024)));

                        conf.setInt("mapred.reduce.tasks", reduceNum);
                        conf.setInt("io.sort.mb", ismb);

                        if (xms == 0)
                            conf.set("mapred.child.java.opts", "-Xmx" + xmx + "m");
                        else
                            conf.set("mapred.child.java.opts", "-Xmx" + xmx + "m -Xms" + xms + "m");

                        conf.setInt("child.monitor.metrics.seconds", 2);
                        conf.setInt("child.monitor.jvm.seconds", 2);
                        conf.setInt("child.monitor.jstat.seconds", 2);

                        conf.setJobName("BigBuildInvertedIndex " + splitMB + "MB "
                                + conf.get("mapred.child.java.opts") + " ismb=" + ismb + " RN=" + reduceNum);

                        String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
                        if (otherArgs.length != 2) {
                            System.err.println("Usage: BigBuildInvertedIndex <in> <out>");
                            System.exit(2);
                        }

                        conf.setMapOutputKeyClass(Text.class);
                        conf.setMapOutputValueClass(PairOfInts.class);
                        conf.setOutputKeyClass(Text.class);
                        conf.setOutputValueClass(PairOfWritables.class);
                        SequenceFileOutputFormat.setOutputCompressionType(conf, CompressionType.BLOCK);
                        conf.setOutputFormat(MapFileOutputFormat.class);

                        conf.setMapperClass(MyMapper.class);
                        // conf.setCombinerClass(IdentityReducer.class);
                        conf.setReducerClass(MyReducer.class);
                        FileInputFormat.setInputPaths(conf, new Path(otherArgs[0]));
                        FileOutputFormat.setOutputPath(conf, new Path(otherArgs[1]));

                        FileSystem.get(conf).delete(new Path(otherArgs[1]), true);

                        try {
                            JobClient.runJob(conf);
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        Thread.sleep(15000);

                    }
                }
            }
        }
    }
    return 0;
}

---

From source file:jobimtext.thesaurus.distributional.hadoop.mapreduce.AggrPerFt.java

License:Apache License

/**
 * Set the job configuration, classes and run the job.
 *//*  w ww  . j  av  a  2s  . co m*/
@SuppressWarnings("deprecation")
public static void main(String[] args) throws Exception {
    JobConf conf = HadoopUtil.generateJobConf(args);
    //      JobConf conf  = new JobConf(AggrPerFt.class);
    //      conf.setJobName("AggrPerFt");

    conf.setOutputKeyClass(Text.class);
    conf.setOutputValueClass(Text.class);

    conf.setMapperClass(Map.class);
    conf.setCombinerClass(Reduce.class);
    conf.setReducerClass(Reduce.class);

    conf.setInputFormat(TextInputFormat.class);
    conf.setOutputFormat(TextOutputFormat.class);

    FileInputFormat.setInputPaths(conf, new Path(args[0]));
    FileOutputFormat.setOutputPath(conf, new Path(args[1]));

    /*
     * use compression
     */
    //      conf.set("mapred.output.compress", "true");
    //      conf.set("mapred.map.output.compress", "true");
    //      conf.set("mapred.map.output.compression.codec",
    //            "org.apache.hadoop.io.compress.SnappyCodec");
    //      conf.set("mapred.output.compression.codec",
    //            "org.apache.hadoop.io.compress.SnappyCodec");

    /* set the maximum number of task per node */
    int maptasks = 120;

    conf.set("mapred.tasktracker.map.tasks.maximum", "" + maptasks);
    conf.set("mapred.map.tasks", "" + maptasks);
    conf.set("mapred.tasktracker.map", "" + maptasks);

    int reducetasks = 120;

    conf.set("mapred.tasktracker.reduce.tasks.maximum", "" + reducetasks);
    conf.set("mapred.reduce.tasks", "" + reducetasks);
    conf.set("mapred.tasktracker.reduce", "" + reducetasks);

    /*
     * heap size for the job
     */
    conf.set("mapred.child.java.opts", "-Xmx1500m");

    /*
     * how much virtual memory the entire process tree of each map/reduce
     * task will use
     */
    conf.set("mapred.job.map.memory.mb", "2048");
    conf.set("mapred.job.reduce.memory.mb", "2048");

    JobClient.runJob(conf);

}

---

From source file:jobimtext.thesaurus.distributional.hadoop.mapreduce.AggrPerFtUniquePositions.java

License:Apache License

/**
 * Set the job configuration, classes and run the job.
 *//*from   w  w w  .  j av  a  2 s  .co m*/
@SuppressWarnings("deprecation")
public static void main(String[] args) throws Exception {
    JobConf conf = HadoopUtil.generateJobConf(args);
    //      JobConf conf = new JobConf(AggrPerFtUniquePositions.class);
    conf.setJobName("AggrPerFtUniquePositions " + args[0] + " " + args[1]);

    conf.setOutputKeyClass(Text.class);
    conf.setOutputValueClass(Text.class);

    conf.setMapperClass(Map.class);
    conf.setCombinerClass(Reduce.class);
    conf.setReducerClass(Reduce.class);

    conf.setInputFormat(TextInputFormat.class);
    conf.setOutputFormat(TextOutputFormat.class);

    FileInputFormat.setInputPaths(conf, new Path(args[0]));
    FileOutputFormat.setOutputPath(conf, new Path(args[1]));

    /*
     * use compression
     */
    conf.set("mapred.output.compress", "true");
    conf.set("mapred.map.output.compress", "true");
    conf.set("mapred.map.output.compression.codec", "org.apache.hadoop.io.compress.SnappyCodec");
    conf.set("mapred.output.compression.codec", "org.apache.hadoop.io.compress.SnappyCodec");

    /* set the maximum number of task per node */
    int maptasks = 120;

    conf.set("mapred.tasktracker.map.tasks.maximum", "" + maptasks);
    conf.set("mapred.map.tasks", "" + maptasks);
    conf.set("mapred.tasktracker.map", "" + maptasks);

    int reducetasks = 60;

    conf.set("mapred.tasktracker.reduce.tasks.maximum", "" + reducetasks);
    conf.set("mapred.reduce.tasks", "" + reducetasks);
    conf.set("mapred.tasktracker.reduce", "" + reducetasks);

    /*
     * heap size for the job
     */
    conf.set("mapred.child.java.opts", "-Xmx1500m");

    /*
     * how much virtual memory the entire process tree of each map/reduce
     * task will use
     */
    conf.set("mapred.job.map.memory.mb", "2048");
    conf.set("mapred.job.reduce.memory.mb", "2048");

    JobClient.runJob(conf);

}

---

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