Package org.apache.hadoop.tools

Examples of org.apache.hadoop.tools.DistCp$DuplicationException

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    MiniDFSCluster cluster = null;
    try {
      cluster = new MiniDFSCluster(conf, 2, true, null);
      final String nnUri = FileSystem.getDefaultUri(conf).toString();
      final FileSystem fs = FileSystem.get(URI.create(nnUri), conf);
      final DistCp distcp = new DistCp(conf);
      final FsShell shell = new FsShell(conf); 

      final String srcrootdir =  "/src_root";
      final Path srcrootpath = new Path(srcrootdir);
      final String dstrootdir =  "/dst_root";
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      final Path srcrootpath = new Path(home, "src_root");
      final String srcrootdir =  srcrootpath.toString();
      final Path dstrootpath = new Path(home, "dst_root");
      final String dstrootdir =  dstrootpath.toString();
      final DistCp distcp = USER_UGI.doAs(new PrivilegedExceptionAction<DistCp>() {
        public DistCp run() {
          return new DistCp(userConf);
        }
      });

      FileSystem.mkdirs(fs, srcrootpath, new FsPermission((short)0700));
      final String[] args = {"hftp://"+httpAdd+srcrootdir, nnUri+dstrootdir};
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      cluster = new MiniDFSCluster(conf, 2, true, null);
      final URI nnURI = FileSystem.getDefaultUri(conf);
      final String nnUri = nnURI.toString();
      final FileSystem fs = FileSystem.get(URI.create(nnUri), conf);

      final DistCp distcp = new DistCp(conf);
      final FsShell shell = new FsShell(conf); 

      final String srcrootdir = "/src_root";
      final String dstrootdir = "/dst_root";
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  }
 
  /** copy files from local file system to local file system */
  public void testCopyFromLocalToLocal() throws Exception {
    MyFile[] files = createFiles(LOCAL_FS, TEST_ROOT_DIR+"/srcdat");
    ToolRunner.run(new DistCp(new Configuration()),
                           new String[] {"file:///"+TEST_ROOT_DIR+"/srcdat",
                                         "file:///"+TEST_ROOT_DIR+"/destdat"});
    assertTrue("Source and destination directories do not match.",
               checkFiles("file:///", TEST_ROOT_DIR+"/destdat", files));
    deldir("file:///", TEST_ROOT_DIR+"/destdat");
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      Configuration conf = new Configuration();
      cluster = new MiniDFSCluster(conf, 2, true, null);
      namenode = FileSystem.getDefaultUri(conf).toString();
      if (namenode.startsWith("hdfs://")) {
        MyFile[] files = createFiles(URI.create(namenode), "/srcdat");
        ToolRunner.run(new DistCp(conf), new String[] {
                                         "-log",
                                         namenode+"/logs",
                                         namenode+"/srcdat",
                                         namenode+"/destdat"});
        assertTrue("Source and destination directories do not match.",
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      Configuration conf = new Configuration();
      cluster = new MiniDFSCluster(conf, 1, true, null);
      namenode = FileSystem.getDefaultUri(conf).toString();
      if (namenode.startsWith("hdfs://")) {
        MyFile[] files = createFiles(LOCAL_FS, TEST_ROOT_DIR+"/srcdat");
        ToolRunner.run(new DistCp(conf), new String[] {
                                         "-log",
                                         namenode+"/logs",
                                         "file:///"+TEST_ROOT_DIR+"/srcdat",
                                         namenode+"/destdat"});
        assertTrue("Source and destination directories do not match.",
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      Configuration conf = new Configuration();
      cluster = new MiniDFSCluster(conf, 1, true, null);
      namenode = FileSystem.getDefaultUri(conf).toString();
      if (namenode.startsWith("hdfs://")) {
        MyFile[] files = createFiles(URI.create(namenode), "/srcdat");
        ToolRunner.run(new DistCp(conf), new String[] {
                                         "-log",
                                         "/logs",
                                         namenode+"/srcdat",
                                         "file:///"+TEST_ROOT_DIR+"/destdat"});
        assertTrue("Source and destination directories do not match.",
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      Configuration conf = new Configuration();
      cluster = new MiniDFSCluster(conf, 2, true, null);
      namenode = FileSystem.getDefaultUri(conf).toString();
      if (namenode.startsWith("hdfs://")) {
        MyFile[] files = createFiles(URI.create(namenode), "/srcdat");
        ToolRunner.run(new DistCp(conf), new String[] {
                                         "-p",
                                         "-log",
                                         namenode+"/logs",
                                         namenode+"/srcdat",
                                         namenode+"/destdat"});
        assertTrue("Source and destination directories do not match.",
                   checkFiles(namenode, "/destdat", files));
        FileSystem fs = FileSystem.get(URI.create(namenode+"/logs"), conf);
        assertTrue("Log directory does not exist.",
                    fs.exists(new Path(namenode+"/logs")));

        FileStatus[] dchkpoint = getFileStatus(namenode, "/destdat", files);
        final int nupdate = NFILES>>2;
        updateFiles(namenode, "/srcdat", files, nupdate);
        deldir(namenode, "/logs");

        ToolRunner.run(new DistCp(conf), new String[] {
                                         "-p",
                                         "-update",
                                         "-log",
                                         namenode+"/logs",
                                         namenode+"/srcdat",
                                         namenode+"/destdat"});
        assertTrue("Source and destination directories do not match.",
                   checkFiles(namenode, "/destdat", files));
        assertTrue("Update failed to replicate all changes in src",
                 checkUpdate(dchkpoint, namenode, "/destdat", files, nupdate));

        deldir(namenode, "/logs");
        ToolRunner.run(new DistCp(conf), new String[] {
                                         "-p",
                                         "-overwrite",
                                         "-log",
                                         namenode+"/logs",
                                         namenode+"/srcdat",
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  }

  public void testCopyDuplication() throws Exception {
    try {   
      MyFile[] files = createFiles(LOCAL_FS, TEST_ROOT_DIR+"/srcdat");
      ToolRunner.run(new DistCp(new Configuration()),
          new String[] {"file:///"+TEST_ROOT_DIR+"/srcdat",
                        "file:///"+TEST_ROOT_DIR+"/src2/srcdat"});
      assertTrue("Source and destination directories do not match.",
                 checkFiles("file:///", TEST_ROOT_DIR+"/src2/srcdat", files));
 
      assertEquals(DistCp.DuplicationException.ERROR_CODE,
          ToolRunner.run(new DistCp(new Configuration()),
          new String[] {"file:///"+TEST_ROOT_DIR+"/srcdat",
                        "file:///"+TEST_ROOT_DIR+"/src2/srcdat",
                        "file:///"+TEST_ROOT_DIR+"/destdat",}));
    }
    finally {
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    FileSystem fs = FileSystem.get(LOCAL_FS, new Configuration());
    Path root = new Path(TEST_ROOT_DIR+"/srcdat");
    try {   
      MyFile[] files = {createFile(root, fs)};
      //copy a dir with a single file
      ToolRunner.run(new DistCp(new Configuration()),
          new String[] {"file:///"+TEST_ROOT_DIR+"/srcdat",
                        "file:///"+TEST_ROOT_DIR+"/destdat"});
      assertTrue("Source and destination directories do not match.",
                 checkFiles("file:///", TEST_ROOT_DIR+"/destdat", files));
     
      //copy a single file
      String fname = files[0].getName();
      Path p = new Path(root, fname);
      FileSystem.LOG.info("fname=" + fname + ", exists? " + fs.exists(p));
      ToolRunner.run(new DistCp(new Configuration()),
          new String[] {"file:///"+TEST_ROOT_DIR+"/srcdat/"+fname,
                        "file:///"+TEST_ROOT_DIR+"/dest2/"+fname});
      assertTrue("Source and destination directories do not match.",
          checkFiles("file:///", TEST_ROOT_DIR+"/dest2", files));    
      //copy single file to existing dir
      deldir("file:///", TEST_ROOT_DIR+"/dest2");
      fs.mkdirs(new Path(TEST_ROOT_DIR+"/dest2"));
      MyFile[] files2 = {createFile(root, fs, 0)};
      String sname = files2[0].getName();
      ToolRunner.run(new DistCp(new Configuration()),
          new String[] {"-update",
                        "file:///"+TEST_ROOT_DIR+"/srcdat/"+sname,
                        "file:///"+TEST_ROOT_DIR+"/dest2/"});
      assertTrue("Source and destination directories do not match.",
          checkFiles("file:///", TEST_ROOT_DIR+"/dest2", files2));    
      updateFiles("file:///", TEST_ROOT_DIR+"/srcdat", files2, 1);
      //copy single file to existing dir w/ dst name conflict
      ToolRunner.run(new DistCp(new Configuration()),
          new String[] {"-update",
                        "file:///"+TEST_ROOT_DIR+"/srcdat/"+sname,
                        "file:///"+TEST_ROOT_DIR+"/dest2/"});
      assertTrue("Source and destination directories do not match.",
          checkFiles("file:///", TEST_ROOT_DIR+"/dest2", files2));    
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Related Classes of org.apache.hadoop.tools.DistCp$DuplicationException

  • org.apache.accumulo.test.ShellServerIT
  • org.apache.accumulo.test.ShellServerTest
  • org.apache.falcon.replication.FeedReplicator
  • org.apache.hadoop.conf.Configuration
  • org.apache.hadoop.fs.FileChecksum
  • org.apache.hadoop.fs.FileStatus
  • org.apache.hadoop.fs.FileSystem
  • org.apache.hadoop.fs.FSDataInputStream
  • org.apache.hadoop.fs.FSDataOutputStream
  • org.apache.hadoop.fs.FsShell
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