@Override
  public void recordBulkOpStart(EventID eventID, ThreadIdentifier tid) {
    if (logger.isDebugEnabled()) {
      logger.debug("recording bulkOp start for {}", tid.expensiveToString());
    }
    EventSequenceNumberHolder evh = recordedEvents.get(tid);
    if (evh == null) {
      return;
    }
    synchronized (evh) {
      // only remove it when a new bulk op occurs
      if (eventID.getSequenceID() > evh.getLastSequenceNumber()) {
        recordedBulkOpVersionTags.remove(tid);
      }
    }
  }
@return true if the event should not be tracked, false otherwise
geode-core/src/main/java/org/apache/geode/internal/cache/event/DistributedEventTracker.java