public static void force() {
   try {
     w.lock();
     if (myRecords != null) {
       markClean();
     }
     if (myNames != null) {
       myNames.force();
       myAttributes.force();
       myContents.force();
       myRecords.force();
     }
   } finally {
     w.unlock();
   }
 }
    public static void flushSome() {
      if (!isDirty() || HeavyProcessLatch.INSTANCE.isRunning()) return;

      try {
        w.lock();
        if (myFlushingFuture == null) {
          return; // avoid NPE when close has already taken place
        }
        myNames.force();

        final boolean attribsFlushed = myAttributes.flushSome();
        final boolean contentsFlushed = myContents.flushSome();
        if (attribsFlushed && contentsFlushed) {
          markClean();
          myRecords.force();
        }
      } finally {
        w.unlock();
      }
    }