/** {@inheritDoc} */
  @Override
  public void record(GridEvent evt) throws GridSpiException {
    assert evt != null;

    // Filter out events.
    if (filter == null || filter.apply(evt)) {
      cleanupQueue();

      evts.add(evt);

      // Make sure to filter out metrics updates to prevent log from flooding.
      if (evt.type() != EVT_NODE_METRICS_UPDATED && log.isDebugEnabled())
        log.debug("Event recorded: " + evt);
    }
  }