public long getTotalRegionEntryCount() {
    Iterator<DistributedRegionBridge> memberIterator = distrRegionMap.values().iterator();
    if (memberIterator != null) {
      long sum = 0;
      while (memberIterator.hasNext()) {
        sum = sum + memberIterator.next().getSystemRegionEntryCount();
      }
      return sum;
    }
    return 0;
  }
@return total number of region entries
geode-core/src/main/java/org/apache/geode/management/internal/beans/DistributedSystemBridge.java