Package org.apache.hadoop.hdfs.server.namenode

Examples of org.apache.hadoop.hdfs.server.namenode.FSEditLogOp

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    for (long i = 0; i < 3; i++) {
      long start = txid;
      EditLogOutputStream out = bkjm.startLogSegment(start,
          NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
      for (long j = 1 ; j <= DEFAULT_SEGMENT_SIZE; j++) {
        FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
        op.setTransactionId(txid++);
        out.write(op);
      }
     
      out.close();
      bkjm.finalizeLogSegment(start, (txid-1));
      assertNotNull(
          zkc.exists(bkjm.finalizedLedgerZNode(start, (txid-1)), false));
    }
    long start = txid;
    EditLogOutputStream out = bkjm.startLogSegment(start,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
    for (long j = 1 ; j <= DEFAULT_SEGMENT_SIZE/2; j++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(txid++);
      out.write(op);
    }
    out.setReadyToFlush();
    out.flush();
    out.abort();
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    long txid = 1;
    long start = txid;
    EditLogOutputStream out = bkjm.startLogSegment(txid,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
    for (long j = 1 ; j <= DEFAULT_SEGMENT_SIZE; j++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(txid++);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(start, (txid-1));
   
    txid = 1;
    try {
      out = bkjm.startLogSegment(txid,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
      fail("Shouldn't be able to start another journal from " + txid
          + " when one already exists");
    } catch (Exception ioe) {
      LOG.info("Caught exception as expected", ioe);
    }

    // test border case
    txid = DEFAULT_SEGMENT_SIZE;
    try {
      out = bkjm.startLogSegment(txid,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
      fail("Shouldn't be able to start another journal from " + txid
          + " when one already exists");
    } catch (IOException ioe) {
      LOG.info("Caught exception as expected", ioe);
    }

    // open journal continuing from before
    txid = DEFAULT_SEGMENT_SIZE + 1;
    start = txid;
    out = bkjm.startLogSegment(start,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
    assertNotNull(out);

    for (long j = 1 ; j <= DEFAULT_SEGMENT_SIZE; j++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(txid++);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(start, (txid-1));
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    final long numTransactions = 10000;
    EditLogOutputStream out = bkjm.startLogSegment(1,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);;
    for (long i = 1 ; i <= numTransactions; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(1, numTransactions);
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    bkjm.format(nsi);

    EditLogOutputStream out = bkjm.startLogSegment(1,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);;
    for (long i = 1 ; i <= 100; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.setReadyToFlush();
    out.flush();
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      bkjm.format(nsi);
      EditLogOutputStream out = bkjm.startLogSegment(txid,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);

      for (long i = 1 ; i <= 3; i++) {
        FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
        op.setTransactionId(txid++);
        out.write(op);
      }
      out.setReadyToFlush();
      out.flush();
      bookieToFail.shutdown();
      assertEquals("New bookie didn't die",
                   numBookies, bkutil.checkBookiesUp(numBookies, 10));

      try {
        for (long i = 1 ; i <= 3; i++) {
          FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
          op.setTransactionId(txid++);
          out.write(op);
        }
        out.setReadyToFlush();
        out.flush();
        fail("should not get to this stage");
      } catch (IOException ioe) {
        LOG.debug("Error writing to bookkeeper", ioe);
        assertTrue("Invalid exception message",
                   ioe.getMessage().contains("Failed to write to bookkeeper"));
      }
      replacementBookie = bkutil.newBookie();

      assertEquals("New bookie didn't start",
                   numBookies+1, bkutil.checkBookiesUp(numBookies+1, 10));
      bkjm.recoverUnfinalizedSegments();
      out = bkjm.startLogSegment(txid,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
      for (long i = 1 ; i <= 3; i++) {
        FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
        op.setTransactionId(txid++);
        out.write(op);
      }

      out.setReadyToFlush();
      out.flush();
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      bkjm.format(nsi);

      EditLogOutputStream out = bkjm.startLogSegment(txid,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
      for (long i = 1 ; i <= 3; i++) {
        FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
        op.setTransactionId(txid++);
        out.write(op);
      }
      out.setReadyToFlush();
      out.flush();

      replacementBookie = bkutil.newBookie();
      assertEquals("replacement bookie didn't start",
                   ensembleSize+1, bkutil.checkBookiesUp(ensembleSize+1, 10));
      bookieToFail.shutdown();
      assertEquals("New bookie didn't die",
                   ensembleSize, bkutil.checkBookiesUp(ensembleSize, 10));

      for (long i = 1 ; i <= 3; i++) {
        FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
        op.setTransactionId(txid++);
        out.write(op);
      }
      out.setReadyToFlush();
      out.flush();
    } catch (Exception e) {
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    bkjm.format(nsi);

    EditLogOutputStream out = bkjm.startLogSegment(1,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);;
    for (long i = 1; i <= 100; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(1, 100);
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    bkjm.format(nsi);

    EditLogOutputStream out = bkjm.startLogSegment(1,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);;
    for (long i = 1; i <= 100; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(1, 100);
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    bkjm.format(nsi);

    EditLogOutputStream out = bkjm.startLogSegment(1,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);;
    for (long i = 1; i <= 100; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(1, 100);

    out = bkjm.startLogSegment(101,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
    out.close();
    bkjm.close();

    bkjm = new BookKeeperJournalManager(conf, uri, nsi);
    bkjm.recoverUnfinalizedSegments();
    out = bkjm.startLogSegment(101,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);
    for (long i = 1; i <= 100; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.close();
    bkjm.finalizeLogSegment(101, 200);
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    bkjm.format(nsi);

    EditLogOutputStream out = bkjm.startLogSegment(1,
        NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);;
    for (long i = 1; i <= 100; i++) {
      FSEditLogOp op = FSEditLogTestUtil.getNoOpInstance();
      op.setTransactionId(i);
      out.write(op);
    }
    out.close();
    bkjm.close();
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Related Classes of org.apache.hadoop.hdfs.server.namenode.FSEditLogOp

  • org.apache.hadoop.contrib.bkjournal.BookKeeperEditLogInputStream
  • org.apache.hadoop.contrib.bkjournal.BookKeeperJournalManager
  • org.apache.hadoop.contrib.bkjournal.TestBookKeeperJournalManager
  • org.apache.hadoop.fs.permission.AclEntry
  • org.apache.hadoop.fs.permission.FsAction
  • org.apache.hadoop.fs.permission.FsPermission
  • org.apache.hadoop.fs.permission.PermissionStatus
  • org.apache.hadoop.hdfs.DeprecatedUTF8
  • org.apache.hadoop.hdfs.notifier.server.ServerLogReaderPreTransactional
  • org.apache.hadoop.hdfs.notifier.server.ServerLogReaderTransactional
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