/**
  * Add a file path to the current set of classpath entries. It adds the file to cache as well.
  * Intended to be used by user code.
  *
  * @param file Path of the file to be added
  * @param conf Configuration that contains the classpath setting
  * @param fs FileSystem with respect to which {@code archivefile} should be interpreted.
  */
 public static void addFileToClassPath(Path file, Configuration conf, FileSystem fs)
     throws IOException {
   String filepath = file.toUri().getPath();
   String classpath = conf.get("mapred.job.classpath.files");
   conf.set(
       "mapred.job.classpath.files",
       classpath == null ? filepath : classpath + System.getProperty("path.separator") + filepath);
   URI uri = fs.makeQualified(file).toUri();
   addCacheFile(uri, conf);
 }
  /**
   * Add an archive path to the current set of classpath entries. It adds the archive to cache as
   * well. Intended to be used by user code.
   *
   * @param archive Path of the archive to be added
   * @param conf Configuration that contains the classpath setting
   * @param fs FileSystem with respect to which {@code archive} should be interpreted.
   */
  public static void addArchiveToClassPath(Path archive, Configuration conf, FileSystem fs)
      throws IOException {
    String archivepath = archive.toUri().getPath();
    String classpath = conf.get("mapred.job.classpath.archives");
    conf.set(
        "mapred.job.classpath.archives",
        classpath == null
            ? archivepath
            : classpath + System.getProperty("path.separator") + archivepath);
    URI uri = fs.makeQualified(archive).toUri();

    addCacheArchive(uri, conf);
  }
Example #3
0
  private static URI addArchiveToClassPathHelper(Path archive, Configuration conf)
      throws IOException {

    String classpath = conf.get("mapred.job.classpath.archives");

    // the scheme/authority use ':' as separator. put the unqualified path in classpath
    String archivePath = archive.toUri().getPath();

    conf.set(
        "mapred.job.classpath.archives",
        classpath == null
            ? archivePath
            : classpath + System.getProperty("path.separator") + archivePath);
    return archive.makeQualified(archive.getFileSystem(conf)).toUri();
  }
Example #4
0
 /**
  * Delete a local path with asyncDiskService if available, or otherwise synchronously with local
  * file system.
  */
 private static void deleteLocalPath(
     MRAsyncDiskService asyncDiskService, LocalFileSystem fs, Path path) throws IOException {
   boolean deleted = false;
   if (asyncDiskService != null) {
     // Try to delete using asyncDiskService
     String localPathToDelete = path.toUri().getPath();
     deleted = asyncDiskService.moveAndDeleteAbsolutePath(localPathToDelete);
     if (!deleted) {
       LOG.warn(
           "Cannot find DistributedCache path "
               + localPathToDelete
               + " on any of the asyncDiskService volumes!");
     }
   }
   if (!deleted) {
     // If no asyncDiskService, we will delete the files synchronously
     fs.delete(path, true);
   }
   LOG.info("Deleted path " + path);
 }