synchronized void updateStatistics(int currentBucketHosts) {
    updateRedundancyStatistics(currentBucketHosts);
    updateNoCopiesStatistics(currentBucketHosts);
  }
Determines if there has been a change in current redundancy and updates statistics on
redundancy for the region of the bucket for this tracker

@param currentBucketHosts number of current hosts for the bucket
geode-core/src/main/java/org/apache/geode/internal/cache/BucketRedundancyTracker.java