Examples of org.apache.hadoop.hdfs.tools.DFSAdmin.run()

Class org.apache.hadoop.hdfs.tools.DFSAdmin

Examples of org.apache.hadoop.hdfs.tools.DFSAdmin.run()

org.apache.hadoop.hdfs.tools.DFSAdmin.run()
@param argv The parameters passed to this program. @exception Exception if the filesystem does not exist. @return 0 on success, non zero on error.


      // Saving image without safe mode should fail
      DFSAdmin admin = new DFSAdmin(conf);
      String[] args = new String[]{"-saveNamespace"};
      try {
        admin.run(args);
      } catch(IOException eIO) {
        assertTrue(eIO.getLocalizedMessage().contains("Safe mode should be turned ON"));
      } catch(Exception e) {
        throw new IOException(e);
      }

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      }


      // Saving image in safe mode should succeed
      fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
      try {
        admin.run(args);
      } catch(Exception e) {
        throw new IOException(e);
      }
      // verify that the edits file is empty
      for(File ed : editsDirs) {

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    g2.toArray(str_groups);
    System.out.println(Arrays.toString(str_groups));
    for(int i=0; i<g2.size(); i++) {
      assertEquals("Should be same group ", g1.get(i), g2.get(i));
    }
    admin.run(args);
    System.out.println("third attempt(after refresh command), should be different:");
    List<String> g3 = groups.getGroups(user);
    g3.toArray(str_groups);
    System.out.println(Arrays.toString(str_groups));
    for(int i=0; i<g3.size(); i++) {

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    String [] args = new String[]{"-refreshSuperUserGroupsConfiguration"};
    //NameNode nn = cluster.getNameNode();
    //Configuration conf = new Configuration(config);
    //conf.set(userKeyGroups, "gr2"); // superuser can proxy for this group
    //admin.setConf(conf);
    admin.run(args);
    
    try {
      ProxyUsers.authorize(ugi2, "127.0.0.1", config);
      fail("second auth for " + ugi2.getShortUserName() + " should've failed ");
    } catch (AuthorizationException e) {

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  @Test (timeout = 30000)
  public void testInvalidShell() throws Exception {
    Configuration conf = new Configuration(); // default FS (non-DFS)
    DFSAdmin admin = new DFSAdmin();
    admin.setConf(conf);
    int res = admin.run(new String[] {"-refreshNodes"});
    assertEquals("expected to fail -1", res , -1);
  }


  // force Copy Option is -f
  @Test (timeout = 30000)

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      DataNode dn = cluster.getDataNodes().get(0);


      // check the datanode
      final String dnAddr = dn.getDatanodeId().getIpcAddr(false);
      final String[] args1 = {"-getDatanodeInfo", dnAddr};
      Assert.assertEquals(0, dfsadmin.run(args1));


      // issue shutdown to the datanode.
      final String[] args2 = {"-shutdownDatanode", dnAddr, "upgrade" };
      Assert.assertEquals(0, dfsadmin.run(args2));

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      final String[] args1 = {"-getDatanodeInfo", dnAddr};
      Assert.assertEquals(0, dfsadmin.run(args1));


      // issue shutdown to the datanode.
      final String[] args2 = {"-shutdownDatanode", dnAddr, "upgrade" };
      Assert.assertEquals(0, dfsadmin.run(args2));


      // the datanode should be down.
      Thread.sleep(2000);
      Assert.assertFalse("DataNode should exit", dn.isDatanodeUp());

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      // the datanode should be down.
      Thread.sleep(2000);
      Assert.assertFalse("DataNode should exit", dn.isDatanodeUp());


      // ping should fail.
      Assert.assertEquals(-1, dfsadmin.run(args1));
    } finally {
      if (cluster != null) cluster.shutdown();
    }
  }

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  @Test (timeout = 30000)
  public void testInvalidShell() throws Exception {
    Configuration conf = new Configuration(); // default FS (non-DFS)
    DFSAdmin admin = new DFSAdmin();
    admin.setConf(conf);
    int res = admin.run(new String[] {"-refreshNodes"});
    assertEquals("expected to fail -1", res , -1);
  }
  
  // Preserve Copy Option is -ptopxa (timestamps, ownership, permission, XATTR,
  // ACLs)

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    int lastMockQueueConstructions = mockQueueConstructions;


    // Replace queue with the queue specified in core-site.xml, which would be the LinkedBlockingQueue
    DFSAdmin admin = new DFSAdmin(config);
    String [] args = new String[]{"-refreshCallQueue"};
    int exitCode = admin.run(args);
    assertEquals("DFSAdmin should return 0", 0, exitCode);


    assertEquals("Mock queue should have no additional constructions", lastMockQueueConstructions, mockQueueConstructions);
    try {
      assertFalse("Puts are routed through LBQ instead of MockQueue", canPutInMockQueue());

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