Package org.apache.hadoop.hdfs

Examples of org.apache.hadoop.hdfs.MiniDFSCluster.shutdownNameNode()

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      fs = FileSystem.get(WEBHDFS_URI, conf);
      cluster.transitionToActive(1);

      FSDataOutputStream out = fs.create(p);
      cluster.shutdownNameNode(1);
      cluster.transitionToActive(0);

      out.write(data);
      out.close();
      FSDataInputStream in = fs.open(p);
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      Path p = new Path("/testBKJMfailover");

      FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);

      fs.mkdirs(p);
      cluster.shutdownNameNode(0);

      cluster.transitionToActive(1);

      assertTrue(fs.exists(p));
    } finally {
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        fs.mkdirs(p2);
        fail("mkdirs should result in the NN exiting");
      } catch (RemoteException re) {
        assertTrue(re.getClassName().contains("ExitException"));
      }
      cluster.shutdownNameNode(0);

      try {
        cluster.transitionToActive(1);
        fail("Shouldn't have been able to transition with bookies down");
      } catch (ExitException ee) {
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    FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
    try {
      cluster.transitionToActive(0);
      NameNode nn0 = cluster.getNameNode(0);
      nn0.getRpcServer().rollEditLog();
      cluster.shutdownNameNode(0);
      createEmptyInProgressEditLog(cluster, nn0, writeHeader);
      cluster.transitionToActive(1);
    } finally {
      IOUtils.cleanup(LOG, fs);
      cluster.shutdown();
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      // restart datanodes on the same ports that they currently use
      assertTrue(cluster.restartDataNodes(true));
      cluster.waitActive();
      assertEquals(numDataNodes, cluster.getDataNodes().size());
      cluster.shutdownNameNode(0);

      // confirm tokens cached in in1 are still valid
      lblocks = DFSTestUtil.getAllBlocks(in1);
      for (LocatedBlock blk : lblocks) {
        assertFalse(SecurityTestUtil.isBlockTokenExpired(blk.getBlockToken()));
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       * setup for this test depends on the previous test.
       */

      // restart the namenode and then shut it down for test
      cluster.restartNameNode(0);
      cluster.shutdownNameNode(0);

      // verify blockSeekTo() still works (forced to use cached tokens)
      in1.seek(0);
      assertTrue(checkFile1(in1));
      // verify again blockSeekTo() still works (forced to use cached tokens)
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      assertTrue(cluster.restartDataNodes(true));
      cluster.waitActive();
      assertEquals(numDataNodes, cluster.getDataNodes().size());

      // shutdown namenode so that DFSClient can't get new tokens from namenode
      cluster.shutdownNameNode(0);

      // verify blockSeekTo() fails (cached tokens become invalid)
      in1.seek(0);
      assertFalse(checkFile1(in1));
      // verify fetchBlockByteRange() fails (cached tokens become invalid)
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      userfs.mkdirs(RENAME_PATH);
      assertTrue(canRename(userfs, RENAME_PATH, CHILD_DIR1));
     
      nnfs.mkdirs(new Path("/data1"));
     
      cluster.shutdownNameNode();
      // restart namenode enable permission checking for the root path
      Configuration newconf = cluster.getNameNodeConf();
      newconf.set("dfs.permissions.checking.paths", "/data1");
      cluster.restartNameNode();
     
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