Java 类org.apache.hadoop.mapred.InvalidJobConfException 实例源码

项目：hadoop 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：aliyun-oss-hadoop-fs 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：big-c 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop-2.6.0-cdh5.4.3 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop-2.6.0-cdh5.4.3 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(), 
                                      new Path[] {outDir}, 
                                      job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop-plus 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：FlexMap 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hops 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop-TCP 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop-on-lustre 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(), 
                                      new Path[] {outDir}, 
                                      job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hardfs 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop-on-lustre2 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hanoi-hadoop-2.0.0-cdh 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(), 
                                      new Path[] {outDir}, 
                                      job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：mapreduce-fork 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：spliceengine 文件：SparkDataSet.java

/**
 * Overridden to avoid throwing an exception if the specified directory
 * for export already exists.
 */
@Override
public void checkOutputSpecs(JobContext job) throws FileAlreadyExistsException, IOException {
    Path outDir = getOutputPath(job);
    if(outDir == null) {
        throw new InvalidJobConfException("Output directory not set.");
    } else {
        TokenCache.obtainTokensForNamenodes(job.getCredentials(), new Path[]{outDir}, job.getConfiguration());
        /*
        if(outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
            System.out.println("Output dir already exists, no problem");
            throw new FileAlreadyExistsException("Output directory " + outDir + " already exists");
        }
        */
    }
}

项目：zephyr 文件：ZephyrOutputFormat.java

@Override
public void checkOutputSpecs(FileSystem ignored, JobConf job) throws FileAlreadyExistsException, InvalidJobConfException, IOException {
    // Ensure that the output directory is set and not already there
    Path outDir = getOutputPath(job);
    if (outDir == null && job.getNumReduceTasks() != 0) {
        throw new InvalidJobConfException("Output directory not set in JobConf.");
    }
    if (outDir != null) {
        FileSystem fs = outDir.getFileSystem(job);
        // normalize the output directory
        outDir = fs.makeQualified(outDir);
        setOutputPath(job, outDir);

        // get delegation token for the outDir's file system
        TokenCache.obtainTokensForNamenodes(job.getCredentials(), new Path[]{outDir}, job);
        String jobUuid = job.get("zephyr.job.uuid");
        if (jobUuid == null)
            throw new InvalidJobConfException("This output format REQUIRES the value zephyr.job.uuid to be specified in the job configuration!");
        // // check its existence
        // if (fs.exists(outDir)) {
        // throw new FileAlreadyExistsException("Output directory " + outDir
        // + " already exists");
        // }
    }
}

项目：hortonworks-extension 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(), 
                                      new Path[] {outDir}, 
                                      job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hortonworks-extension 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(), 
                                      new Path[] {outDir}, 
                                      job.getConfiguration());

  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}

项目：hadoop 文件：SequenceFileAsBinaryOutputFormat.java

@Override 
public void checkOutputSpecs(JobContext job) throws IOException {
  super.checkOutputSpecs(job);
  if (getCompressOutput(job) && 
      getOutputCompressionType(job) == CompressionType.RECORD ) {
    throw new InvalidJobConfException("SequenceFileAsBinaryOutputFormat "
      + "doesn't support Record Compression" );
  }
}

项目：hadoop 文件：TeraOutputFormat.java

@Override
public void checkOutputSpecs(JobContext job
                            ) throws InvalidJobConfException, IOException {
  // Ensure that the output directory is set
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set in JobConf.");
  }

  final Configuration jobConf = job.getConfiguration();

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, jobConf);

  final FileSystem fs = outDir.getFileSystem(jobConf);

  if (fs.exists(outDir)) {
    // existing output dir is considered empty iff its only content is the
    // partition file.
    //
    final FileStatus[] outDirKids = fs.listStatus(outDir);
    boolean empty = false;
    if (outDirKids != null && outDirKids.length == 1) {
      final FileStatus st = outDirKids[0];
      final String fname = st.getPath().getName();
      empty =
        !st.isDirectory() && TeraInputFormat.PARTITION_FILENAME.equals(fname);
    }
    if (TeraSort.getUseSimplePartitioner(job) || !empty) {
      throw new FileAlreadyExistsException("Output directory " + outDir
          + " already exists");
    }
  }
}

项目：ditb 文件：TableOutputFormat.java

@Override
public void checkOutputSpecs(FileSystem ignored, JobConf job)
throws FileAlreadyExistsException, InvalidJobConfException, IOException {
  String tableName = job.get(OUTPUT_TABLE);
  if (tableName == null) {
    throw new IOException("Must specify table name");
  }
}

项目：aliyun-oss-hadoop-fs 文件：TestMRApps.java

@SuppressWarnings("deprecation")
@Test(timeout = 120000, expected = InvalidJobConfException.class)
public void testSetupDistributedCacheConflicts() throws Exception {
  Configuration conf = new Configuration();
  conf.setClass("fs.mockfs.impl", MockFileSystem.class, FileSystem.class);

  URI mockUri = URI.create("mockfs://mock/");
  FileSystem mockFs = ((FilterFileSystem)FileSystem.get(mockUri, conf))
      .getRawFileSystem();

  URI archive = new URI("mockfs://mock/tmp/something.zip#something");
  Path archivePath = new Path(archive);
  URI file = new URI("mockfs://mock/tmp/something.txt#something");
  Path filePath = new Path(file);

  when(mockFs.resolvePath(archivePath)).thenReturn(archivePath);
  when(mockFs.resolvePath(filePath)).thenReturn(filePath);

  DistributedCache.addCacheArchive(archive, conf);
  conf.set(MRJobConfig.CACHE_ARCHIVES_TIMESTAMPS, "10");
  conf.set(MRJobConfig.CACHE_ARCHIVES_SIZES, "10");
  conf.set(MRJobConfig.CACHE_ARCHIVES_VISIBILITIES, "true");
  DistributedCache.addCacheFile(file, conf);
  conf.set(MRJobConfig.CACHE_FILE_TIMESTAMPS, "11");
  conf.set(MRJobConfig.CACHE_FILES_SIZES, "11");
  conf.set(MRJobConfig.CACHE_FILE_VISIBILITIES, "true");
  Map<String, LocalResource> localResources = 
    new HashMap<String, LocalResource>();
  MRApps.setupDistributedCache(conf, localResources);
}

项目：aliyun-oss-hadoop-fs 文件：TestMRApps.java

@SuppressWarnings("deprecation")
@Test(timeout = 120000, expected = InvalidJobConfException.class)
public void testSetupDistributedCacheConflictsFiles() throws Exception {
  Configuration conf = new Configuration();
  conf.setClass("fs.mockfs.impl", MockFileSystem.class, FileSystem.class);

  URI mockUri = URI.create("mockfs://mock/");
  FileSystem mockFs = ((FilterFileSystem)FileSystem.get(mockUri, conf))
      .getRawFileSystem();

  URI file = new URI("mockfs://mock/tmp/something.zip#something");
  Path filePath = new Path(file);
  URI file2 = new URI("mockfs://mock/tmp/something.txt#something");
  Path file2Path = new Path(file2);

  when(mockFs.resolvePath(filePath)).thenReturn(filePath);
  when(mockFs.resolvePath(file2Path)).thenReturn(file2Path);

  DistributedCache.addCacheFile(file, conf);
  DistributedCache.addCacheFile(file2, conf);
  conf.set(MRJobConfig.CACHE_FILE_TIMESTAMPS, "10,11");
  conf.set(MRJobConfig.CACHE_FILES_SIZES, "10,11");
  conf.set(MRJobConfig.CACHE_FILE_VISIBILITIES, "true,true");
  Map<String, LocalResource> localResources = 
    new HashMap<String, LocalResource>();
  MRApps.setupDistributedCache(conf, localResources);
}

项目：aliyun-oss-hadoop-fs 文件：SequenceFileAsBinaryOutputFormat.java

@Override 
public void checkOutputSpecs(JobContext job) throws IOException {
  super.checkOutputSpecs(job);
  if (getCompressOutput(job) && 
      getOutputCompressionType(job) == CompressionType.RECORD ) {
    throw new InvalidJobConfException("SequenceFileAsBinaryOutputFormat "
      + "doesn't support Record Compression" );
  }
}

项目：aliyun-oss-hadoop-fs 文件：TeraOutputFormat.java

@Override
public void checkOutputSpecs(JobContext job
                            ) throws InvalidJobConfException, IOException {
  // Ensure that the output directory is set
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set in JobConf.");
  }

  final Configuration jobConf = job.getConfiguration();

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, jobConf);

  final FileSystem fs = outDir.getFileSystem(jobConf);

  if (fs.exists(outDir)) {
    // existing output dir is considered empty iff its only content is the
    // partition file.
    //
    final FileStatus[] outDirKids = fs.listStatus(outDir);
    boolean empty = false;
    if (outDirKids != null && outDirKids.length == 1) {
      final FileStatus st = outDirKids[0];
      final String fname = st.getPath().getName();
      empty =
        !st.isDirectory() && TeraInputFormat.PARTITION_FILENAME.equals(fname);
    }
    if (TeraSort.getUseSimplePartitioner(job) || !empty) {
      throw new FileAlreadyExistsException("Output directory " + outDir
          + " already exists");
    }
  }
}

项目：fst-bench 文件：TeraOutputFormat.java

@Override
public void checkOutputSpecs(JobContext job
                            ) throws InvalidJobConfException, IOException {
  // Ensure that the output directory is set
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set in JobConf.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());
}

项目：fst-bench 文件：NutchOutputFormat.java

public void checkOutputSpecs(FileSystem fs, JobConf job) throws IOException {
    Path out = FileOutputFormat.getOutputPath(job);
    if ((out == null) && (job.getNumReduceTasks() != 0)) {
        throw new InvalidJobConfException(
                "Output directory not set in JobConf.");
    }
    if (fs == null) {
        fs = out.getFileSystem(job);
    }

    if (fs.exists(new Path(out, CrawlDatum.PARSE_DIR_NAME)))
        throw new IOException("Segment already parsed!");


}

项目：GeoCrawler 文件：FetcherOutputFormat.java

public void checkOutputSpecs(FileSystem fs, JobConf job) throws IOException {
  Path out = FileOutputFormat.getOutputPath(job);
  if ((out == null) && (job.getNumReduceTasks() != 0)) {
    throw new InvalidJobConfException("Output directory not set in JobConf.");
  }
  if (fs == null) {
    fs = out.getFileSystem(job);
  }
  if (fs.exists(new Path(out, CrawlDatum.FETCH_DIR_NAME)))
    throw new IOException("Segment already fetched!");
}

项目：gemfirexd-oss 文件：RowOutputFormat.java

public MapRedGfxdRecordWriter(Configuration conf) throws IOException {
  this.tableName = conf.get(OUTPUT_TABLE);
  try {
    this.batchExecutor = util.new RowCommandBatchExecutor(getDriver(conf),
        conf.get(OUTPUT_URL), conf.getInt(OUTPUT_BATCH_SIZE,
            OUTPUT_BATCH_SIZE_DEFAULT));
  } catch (ClassNotFoundException e) {
    logger.error("Gemfirexd client classes are missing from the classpath", e);
    throw new InvalidJobConfException(e);
  }
}

项目：gemfirexd-oss 文件：RowOutputFormat.java

/**
 * Validates correctness and completeness of job's output configuration. Job
 * configuration must contain url, table and schema name
 * 
 * @param conf
 *          job conf
 * @throws InvalidJobConfException
 */
protected static void validateConfiguration(Configuration conf)
    throws InvalidJobConfException {
  // User must configure the output region name.
  String url = conf.get(OUTPUT_URL);
  if (url == null || url.trim().isEmpty()) {
    throw new InvalidJobConfException("Output URL not configured.");
  }

  String table = conf.get(OUTPUT_TABLE);
  if (table == null || table.trim().isEmpty()) {
    throw new InvalidJobConfException("Output table name not provided.");
  }
}

项目：gemfirexd-oss 文件：RowOutputFormat.java

public GfxdRecordWriter(Configuration conf) throws IOException {
  this.tableName = conf.get(OUTPUT_TABLE);
  try {
    this.batchExecutor = util.new RowCommandBatchExecutor(getDriver(conf),
        conf.get(OUTPUT_URL), conf.getInt(OUTPUT_BATCH_SIZE,
            OUTPUT_BATCH_SIZE_DEFAULT));
  } catch (ClassNotFoundException e) {
    logger.error("Gemfirexd client classes are missing from the classpath", e);
    throw new InvalidJobConfException(e);
  }
}

项目：gemfirexd-oss 文件：GFOutputFormat.java

/**
 * Validates correctness and completeness of job's output configuration
 * 
 * @param conf
 * @throws InvalidJobConfException
 */
protected void validateConfiguration(Configuration conf)
    throws InvalidJobConfException {
  // User must configure the output region name.
  String region = conf.get(REGION);
  if (region == null || region.trim().isEmpty()) {
    throw new InvalidJobConfException("Output Region name not provided.");
  }

  // TODO validate if a client connected to gemfire cluster can be created
}

项目：big-c 文件：SequenceFileAsBinaryOutputFormat.java

@Override 
public void checkOutputSpecs(JobContext job) throws IOException {
  super.checkOutputSpecs(job);
  if (getCompressOutput(job) && 
      getOutputCompressionType(job) == CompressionType.RECORD ) {
    throw new InvalidJobConfException("SequenceFileAsBinaryOutputFormat "
      + "doesn't support Record Compression" );
  }
}

项目：big-c 文件：TeraOutputFormat.java

@Override
public void checkOutputSpecs(JobContext job
                            ) throws InvalidJobConfException, IOException {
  // Ensure that the output directory is set
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set in JobConf.");
  }

  final Configuration jobConf = job.getConfiguration();

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, jobConf);

  final FileSystem fs = outDir.getFileSystem(jobConf);

  if (fs.exists(outDir)) {
    // existing output dir is considered empty iff its only content is the
    // partition file.
    //
    final FileStatus[] outDirKids = fs.listStatus(outDir);
    boolean empty = false;
    if (outDirKids != null && outDirKids.length == 1) {
      final FileStatus st = outDirKids[0];
      final String fname = st.getPath().getName();
      empty =
        !st.isDirectory() && TeraInputFormat.PARTITION_FILENAME.equals(fname);
    }
    if (TeraSort.getUseSimplePartitioner(job) || !empty) {
      throw new FileAlreadyExistsException("Output directory " + outDir
          + " already exists");
    }
  }
}

项目：LCIndex-HBase-0.94.16 文件：TableOutputFormat.java

@Override
public void checkOutputSpecs(FileSystem ignored, JobConf job)
throws FileAlreadyExistsException, InvalidJobConfException, IOException {

  String tableName = job.get(OUTPUT_TABLE);
  if(tableName == null) {
    throw new IOException("Must specify table name");
  }
}

项目：hadoop-2.6.0-cdh5.4.3 文件：SequenceFileAsBinaryOutputFormat.java

@Override 
public void checkOutputSpecs(JobContext job) throws IOException {
  super.checkOutputSpecs(job);
  if (getCompressOutput(job) && 
      getOutputCompressionType(job) == CompressionType.RECORD ) {
    throw new InvalidJobConfException("SequenceFileAsBinaryOutputFormat "
      + "doesn't support Record Compression" );
  }
}

项目：hadoop-2.6.0-cdh5.4.3 文件：TeraOutputFormat.java

@Override
public void checkOutputSpecs(JobContext job
                            ) throws InvalidJobConfException, IOException {
  // Ensure that the output directory is set
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set in JobConf.");
  }

  // get delegation token for outDir's file system
  TokenCache.obtainTokensForNamenodes(job.getCredentials(),
      new Path[] { outDir }, job.getConfiguration());
}

项目：hadoop-2.6.0-cdh5.4.3 文件：TrackerDistributedCacheManager.java

/** 
 * This is part of the framework API.  It's called within the job
 * submission code only, not by users.  In the non-error case it has
 * no side effects and returns normally.  If there's a URI in both
 * mapred.cache.files and mapred.cache.archives, it throws its
 * exception. 
 * @param conf a {@link Configuration} to be cheked for duplication
 * in cached URIs 
 * @throws InvalidJobConfException
 **/
public static void validate(Configuration conf)
                        throws InvalidJobConfException {
  final String[] archiveStrings
    = conf.getStrings(DistributedCache.CACHE_ARCHIVES);
  final String[] fileStrings = conf.getStrings(DistributedCache.CACHE_FILES);

  Path thisSubject = null;

  if (archiveStrings != null && fileStrings != null) {
    final Set<Path> archivesSet = new HashSet<Path>();

    for (String archiveString : archiveStrings) {
      archivesSet.add(coreLocation(archiveString, conf));
    }

    for (String fileString : fileStrings) {
      thisSubject = coreLocation(fileString, conf);

      if (archivesSet.contains(thisSubject)) {
        throw new InvalidJobConfException
          ("The core URI, \""
           + thisSubject
           + "\" is listed both in " + DistributedCache.CACHE_FILES
           + " and in " + DistributedCache.CACHE_ARCHIVES + " .");
      }
    }
  }
}

项目：hadoop-2.6.0-cdh5.4.3 文件：SequenceFileAsBinaryOutputFormat.java

@Override 
public void checkOutputSpecs(JobContext job) throws IOException {
  super.checkOutputSpecs(job);
  if (getCompressOutput(job) && 
      getOutputCompressionType(job) == CompressionType.RECORD ) {
    throw new InvalidJobConfException("SequenceFileAsBinaryOutputFormat "
      + "doesn't support Record Compression" );
  }
}

项目：hadoop-EAR 文件：FileOutputFormat.java

public void checkOutputSpecs(JobContext job
                             ) throws FileAlreadyExistsException, IOException{
  // Ensure that the output directory is set and not already there
  Path outDir = getOutputPath(job);
  if (outDir == null) {
    throw new InvalidJobConfException("Output directory not set.");
  }
  if (outDir.getFileSystem(job.getConfiguration()).exists(outDir)) {
    throw new FileAlreadyExistsException("Output directory " + outDir + 
                                         " already exists");
  }
}