Ejemplo n.º 1
0
  /**
   * Releases all the resources used by this Kiji instance.
   *
   * @throws IOException on I/O error.
   */
  private void close() throws IOException {
    final State oldState = mState.getAndSet(State.CLOSED);
    Preconditions.checkState(
        oldState == State.OPEN, "Cannot close Kiji instance %s in state %s.", this, oldState);

    LOG.debug("Closing {}.", this);
    if (mMonitor != null) {
      try {
        mMonitor.unregisterInstanceUser(mURI, mKijiClientId, mSystemVersion.toString());
      } catch (KeeperException ke) {
        // Unrecoverable ZooKeeper error:
        throw new IOException(ke);
      }
      mMonitor.close();
    }
    if (mZKClient != null) {
      mZKClient.release();
    }

    ResourceUtils.closeOrLog(mMetaTable);
    ResourceUtils.closeOrLog(mSystemTable);
    ResourceUtils.closeOrLog(mSchemaTable);
    ResourceUtils.closeOrLog(mSecurityManager);
    ResourceUtils.closeOrLog(mAdmin);
    mSchemaTable = null;
    mMetaTable = null;
    mAdmin = null;
    mSecurityManager = null;
    LOG.debug("{} closed.", this);
  }
Ejemplo n.º 2
0
  /**
   * Creates a Kiji table in an HBase instance, without checking for validation compatibility and
   * without applying permissions.
   *
   * @param tableLayout The initial layout of the table (with unassigned column ids).
   * @param splitKeys The initial key boundaries between regions. There will be splitKeys + 1
   *     regions created. Pass null to specify the default single region.
   * @throws IOException on I/O error.
   * @throws KijiAlreadyExistsException if the table already exists.
   */
  private void createTableUnchecked(TableLayoutDesc tableLayout, byte[][] splitKeys)
      throws IOException {
    final KijiURI tableURI = KijiURI.newBuilder(mURI).withTableName(tableLayout.getName()).build();

    // This will validate the layout and may throw an InvalidLayoutException.
    final KijiTableLayout kijiTableLayout = KijiTableLayout.newLayout(tableLayout);

    if (getMetaTable().tableExists(tableLayout.getName())) {
      throw new KijiAlreadyExistsException(
          String.format("Kiji table '%s' already exists.", tableURI), tableURI);
    }

    if (tableLayout.getKeysFormat() instanceof RowKeyFormat) {
      LOG.warn("Usage of 'RowKeyFormat' is deprecated. New tables should use 'RowKeyFormat2'.");
    }

    getMetaTable().updateTableLayout(tableLayout.getName(), tableLayout);

    if (mSystemVersion.compareTo(Versions.SYSTEM_2_0) >= 0) {
      // system-2.0 clients retrieve the table layout from ZooKeeper as a stream of notifications.
      // Invariant: ZooKeeper hold the most recent layout of the table.
      LOG.debug("Writing initial table layout in ZooKeeper for table {}.", tableURI);
      try {
        final ZooKeeperMonitor monitor = new ZooKeeperMonitor(mZKClient);
        try {
          final byte[] layoutId = Bytes.toBytes(kijiTableLayout.getDesc().getLayoutId());
          monitor.notifyNewTableLayout(tableURI, layoutId, -1);
        } finally {
          monitor.close();
        }
      } catch (KeeperException ke) {
        throw new IOException(ke);
      }
    }

    try {
      final HTableSchemaTranslator translator = new HTableSchemaTranslator();
      final HTableDescriptor desc =
          translator.toHTableDescriptor(mURI.getInstance(), kijiTableLayout);
      LOG.debug("Creating HBase table '{}'.", desc.getNameAsString());
      if (null != splitKeys) {
        getHBaseAdmin().createTable(desc, splitKeys);
      } else {
        getHBaseAdmin().createTable(desc);
      }
    } catch (TableExistsException tee) {
      throw new KijiAlreadyExistsException(
          String.format("Kiji table '%s' already exists.", tableURI), tableURI);
    }
  }