Java Code Examples for org.apache.hadoop.hbase.mapreduce.HFileOutputFormat

The following examples show how to use org.apache.hadoop.hbase.mapreduce.HFileOutputFormat. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
@Override
protected void jobSetup(Job job) throws IOException, ImportException {
  super.jobSetup(job);

  // we shouldn't have gotten here if bulk load dir is not set
  // so let's throw a ImportException
  if(getContext().getDestination() == null){
    throw new ImportException("Can't run HBaseBulkImportJob without a " +
        "valid destination directory.");
  }

  TableMapReduceUtil.addDependencyJars(job.getConfiguration(), Preconditions.class);
  FileOutputFormat.setOutputPath(job, getContext().getDestination());
  HTable hTable = new HTable(job.getConfiguration(), options.getHBaseTable());
  HFileOutputFormat.configureIncrementalLoad(job, hTable);
}
 
Example 2
Source Project: stratosphere   Source File: GenericTableOutputFormat.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public void open(int taskNumber, int numTasks) throws IOException {
	this.hadoopConfig = getHadoopConfig(this.config);
	
	/**
	 * PLASE NOTE:
	 * If you are a Eclipse+Maven Integration user and you have two (or more) warnings here, please
	 * close the pact-hbase project OR set the maven profile to hadoop_yarn
	 * 
	 * pact-hbase requires hadoop_yarn, but Eclipse is not able to parse maven profiles properly. Therefore,
	 * it imports the pact-hbase project even if it is not included in the standard profile (hadoop_v1)
	 */
	final TaskAttemptID attemptId = new TaskAttemptID(this.jtID, this.jobId, TaskType.MAP, taskNumber - 1, 0);

	this.context = new org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl(this.hadoopConfig, attemptId);
	final HFileOutputFormat outFormat = new HFileOutputFormat();
	try {
		this.writer = outFormat.getRecordWriter(this.context);
	} catch (InterruptedException iex) {
		throw new IOException("Opening the writer was interrupted.", iex);
	}
}
 
Example 3
Source Project: Kylin   Source File: IICreateHFileJob.java    License: Apache License 2.0 5 votes vote down vote up
public int run(String[] args) throws Exception {
    Options options = new Options();

    try {
        options.addOption(OPTION_JOB_NAME);
        options.addOption(OPTION_II_NAME);
        options.addOption(OPTION_INPUT_PATH);
        options.addOption(OPTION_OUTPUT_PATH);
        options.addOption(OPTION_HTABLE_NAME);
        parseOptions(options, args);

        Path output = new Path(getOptionValue(OPTION_OUTPUT_PATH));

        job = Job.getInstance(getConf(), getOptionValue(OPTION_JOB_NAME));

        setJobClasspath(job);

        addInputDirs(getOptionValue(OPTION_INPUT_PATH), job);
        FileOutputFormat.setOutputPath(job, output);

        job.setInputFormatClass(SequenceFileInputFormat.class);
        job.setMapperClass(IICreateHFileMapper.class);
        job.setMapOutputKeyClass(ImmutableBytesWritable.class);
        job.setMapOutputValueClass(KeyValue.class);

        String tableName = getOptionValue(OPTION_HTABLE_NAME);
        HTable htable = new HTable(HBaseConfiguration.create(getConf()), tableName);
        HFileOutputFormat.configureIncrementalLoad(job, htable);

        this.deletePath(job.getConfiguration(), output);

        return waitForCompletion(job);
    } catch (Exception e) {
        printUsage(options);
        throw e;
    }
}
 
Example 4
Source Project: phoenix   Source File: CsvBulkLoadTool.java    License: Apache License 2.0 4 votes vote down vote up
@Override
public Boolean call() {
    LOG.info("Configuring HFile output path to {}", outputPath);
    try{
     Job job = new Job(conf, "Phoenix MapReduce import for " + tableName);
	
     // Allow overriding the job jar setting by using a -D system property at startup
     if (job.getJar() == null) {
         job.setJarByClass(CsvToKeyValueMapper.class);
     }
     job.setInputFormatClass(TextInputFormat.class);
     FileInputFormat.addInputPath(job, inputPath);
     FileOutputFormat.setOutputPath(job, outputPath);
	
     job.setMapperClass(CsvToKeyValueMapper.class);
     job.setMapOutputKeyClass(ImmutableBytesWritable.class);
     job.setMapOutputValueClass(KeyValue.class);

     // initialize credentials to possibily run in a secure env
     TableMapReduceUtil.initCredentials(job);

        HTable htable = new HTable(conf, tableName);

     // Auto configure partitioner and reducer according to the Main Data table
     HFileOutputFormat.configureIncrementalLoad(job, htable);
	
     LOG.info("Running MapReduce import job from {} to {}", inputPath, outputPath);
     boolean success = job.waitForCompletion(true);
     if (!success) {
         LOG.error("Import job failed, check JobTracker for details");
         htable.close();
         return false;
     }
	
     LOG.info("Loading HFiles from {}", outputPath);
     LoadIncrementalHFiles loader = new LoadIncrementalHFiles(conf);
     loader.doBulkLoad(outputPath, htable);
     htable.close();
	
     LOG.info("Incremental load complete for table=" + tableName);
	
     LOG.info("Removing output directory {}", outputPath);
     if (!FileSystem.get(conf).delete(outputPath, true)) {
         LOG.error("Removing output directory {} failed", outputPath);
     }
     
     return true;
    } catch(Exception ex) {
    	LOG.error("Import job on table=" + tableName + " failed due to exception:" + ex);
    	return false;
    }
}
 
Example 5
Source Project: learning-hadoop   Source File: ImportTsv.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Sets up the actual job.
 * 
 * @param conf
 *            The current configuration.
 * @param args
 *            The command line parameters.
 * @return The newly created job.
 * @throws IOException
 *             When setting up the job fails.
 */
public static Job createSubmittableJob(Configuration conf, String[] args)
		throws IOException, ClassNotFoundException {

	// Support non-XML supported characters
	// by re-encoding the passed separator as a Base64 string.
	String actualSeparator = conf.get(SEPARATOR_CONF_KEY);
	if (actualSeparator != null) {
		conf.set(SEPARATOR_CONF_KEY,
				new String(Base64.encodeBytes(actualSeparator.getBytes())));
	}

	// See if a non-default Mapper was set
	String mapperClassName = conf.get(MAPPER_CONF_KEY);
	Class mapperClass = mapperClassName != null ? Class
			.forName(mapperClassName) : DEFAULT_MAPPER;

	String tableName = args[0];
	Path inputDir = new Path(args[1]);
	Job job = new Job(conf, NAME + "_" + tableName);
	job.setJarByClass(mapperClass);
	FileInputFormat.setInputPaths(job, inputDir);

	String inputCodec = conf.get(INPUT_LZO_KEY);
	if (inputCodec == null) {
		FileInputFormat.setMaxInputSplitSize(job, 67108864l); // max split
																// size =
																// 64m
		job.setInputFormatClass(TextInputFormat.class);
	} else {
		if (inputCodec.equalsIgnoreCase("lzo"))
			job.setInputFormatClass(LzoTextInputFormat.class);
		else {
			usage("not supported compression codec!");
			System.exit(-1);
		}
	}

	job.setMapperClass(mapperClass);

	String hfileOutPath = conf.get(BULK_OUTPUT_CONF_KEY);
	if (hfileOutPath != null) {
		HTable table = new HTable(conf, tableName);
		job.setReducerClass(PutSortReducer.class);
		Path outputDir = new Path(hfileOutPath);
		FileOutputFormat.setOutputPath(job, outputDir);
		job.setMapOutputKeyClass(ImmutableBytesWritable.class);
		job.setMapOutputValueClass(Put.class);
		HFileOutputFormat.configureIncrementalLoad(job, table);
	} else {
		// No reducers. Just write straight to table. Call
		// initTableReducerJob
		// to set up the TableOutputFormat.
		TableMapReduceUtil.initTableReducerJob(tableName, null, job);
		job.setNumReduceTasks(0);
	}

	TableMapReduceUtil.addDependencyJars(job);
	TableMapReduceUtil.addDependencyJars(job.getConfiguration(),
			com.google.common.base.Function.class /*
												 * Guava used by TsvParser
												 */);
	return job;
}
 
Example 6
Source Project: Kylin   Source File: CubeHFileJob.java    License: Apache License 2.0 4 votes vote down vote up
public int run(String[] args) throws Exception {
    Options options = new Options();

    try {
        options.addOption(OPTION_JOB_NAME);
        options.addOption(OPTION_CUBE_NAME);
        options.addOption(OPTION_INPUT_PATH);
        options.addOption(OPTION_OUTPUT_PATH);
        options.addOption(OPTION_HTABLE_NAME);
        parseOptions(options, args);

        Path output = new Path(getOptionValue(OPTION_OUTPUT_PATH));
        String cubeName = getOptionValue(OPTION_CUBE_NAME).toUpperCase();

        CubeManager cubeMgr = CubeManager.getInstance(KylinConfig.getInstanceFromEnv());

        CubeInstance cube = cubeMgr.getCube(cubeName);
        job = Job.getInstance(getConf(), getOptionValue(OPTION_JOB_NAME));

        setJobClasspath(job);

        addInputDirs(getOptionValue(OPTION_INPUT_PATH), job);
        FileOutputFormat.setOutputPath(job, output);

        job.setInputFormatClass(SequenceFileInputFormat.class);
        job.setMapperClass(CubeHFileMapper.class);
        job.setReducerClass(KeyValueSortReducer.class);

        // set job configuration
        job.getConfiguration().set(BatchConstants.CFG_CUBE_NAME, cubeName);
        Configuration conf = HBaseConfiguration.create(getConf());
        // add metadata to distributed cache
        attachKylinPropsAndMetadata(cube, job.getConfiguration());

        String tableName = getOptionValue(OPTION_HTABLE_NAME).toUpperCase();
        HTable htable = new HTable(conf, tableName);

        //Automatic config !
        HFileOutputFormat.configureIncrementalLoad(job, htable);

        // set block replication to 3 for hfiles
        conf.set(DFSConfigKeys.DFS_REPLICATION_KEY, "3");

        this.deletePath(job.getConfiguration(), output);

        return waitForCompletion(job);
    } catch (Exception e) {
        logger.error("error in CubeHFileJob", e);
        printUsage(options);
        throw e;
    }
}
 
Example 7
Source Project: HBase-ToHDFS   Source File: PopulateTable.java    License: Apache License 2.0 4 votes vote down vote up
public static void main(String[] args) throws Exception {

    if (args.length == 0) {
      System.out.println("PopulateSmallTable {numberOfMappers} {numberOfRecords} {tmpOutputPath} {tableName} {columnFamily} {runID}");
      return;
    }

    String numberOfMappers = args[0];
    String numberOfRecords = args[1];
    String outputPath = args[2];
    String tableName = args[3];
    String columnFamily = args[4];
    String runID = args[5];

    // Create job
    Job job = Job.getInstance();
    HBaseConfiguration.addHbaseResources(job.getConfiguration());

    job.setJarByClass(PopulateTable.class);
    job.setJobName("PopulateTable: " + runID);
    job.getConfiguration().set(NUMBER_OF_RECORDS, numberOfRecords);

    job.getConfiguration().set(TABLE_NAME, tableName);
    job.getConfiguration().set(COLUMN_FAMILY, columnFamily);
    job.getConfiguration().set(RUN_ID, runID);

    // Define input format and path
    job.setInputFormatClass(NMapInputFormat.class);
    NMapInputFormat.setNumMapTasks(job.getConfiguration(), Integer.parseInt(numberOfMappers));

    Configuration config = HBaseConfiguration.create();

    HTable hTable = new HTable(config, tableName);

    // Auto configure partitioner and reducer
    HFileOutputFormat.configureIncrementalLoad(job, hTable);
    FileOutputFormat.setOutputPath(job, new Path(outputPath));

    // Define the mapper and reducer
    job.setMapperClass(CustomMapper.class);
    // job.setReducerClass(CustomReducer.class);

    // Define the key and value format
    job.setMapOutputKeyClass(ImmutableBytesWritable.class);
    job.setMapOutputValueClass(KeyValue.class);

    // Exit
    job.waitForCompletion(true);
    FileSystem hdfs = FileSystem.get(config);

    // Must all HBase to have write access to HFiles
    HFileUtils.changePermissionR(outputPath, hdfs);

    LoadIncrementalHFiles load = new LoadIncrementalHFiles(config);
    load.doBulkLoad(new Path(outputPath), hTable);

  }
 
Example 8
Source Project: zerowing   Source File: BulkImportJob.java    License: MIT License 4 votes vote down vote up
private void configureBulkImport() throws IOException {
  HTable table = new HTable(getConfiguration(), _tableName);
  HFileOutputFormat.configureIncrementalLoad(_job, table);
  HFileOutputFormat.setOutputPath(_job, _hfilePath);
}