code: public void release()
      {
          for(String name : all)
          {
              allColumnFamilyMetrics.get(name).remove(Metrics.defaultRegistry().allMetrics().get(factory.createMetricName(name)));
              Metrics.defaultRegistry().removeMetric(factory.createMetricName(name));
          }
          readLatency.release();
          writeLatency.release();
          rangeLatency.release();
          Metrics.defaultRegistry().removeMetric(factory.createMetricName("EstimatedRowSizeHistogram"));
          Metrics.defaultRegistry().removeMetric(factory.createMetricName("EstimatedColumnCountHistogram"));
          Metrics.defaultRegistry().removeMetric(factory.createMetricName("KeyCacheHitRate"));
          Metrics.defaultRegistry().removeMetric(factory.createMetricName("CoordinatorReadLatency"));
          Metrics.defaultRegistry().removeMetric(factory.createMetricName("CoordinatorScanLatency"));
          Metrics.defaultRegistry().removeMetric(factory.createMetricName("WaitingOnFreeMemtableSpace"));
      }
docs: Release all associated metrics.