protected void initializeRegionSizes() {

    for (final Region<?, ?> region : cache.rootRegions()) {
      LocalRegion rootRegion = (LocalRegion) region;
      if (!(rootRegion instanceof HARegion)) {
        RegionStatus rootRegionStatus = rootRegion instanceof PartitionedRegion
            ? new PartitionedRegionStatus((PartitionedRegion) rootRegion)
            : new RegionStatus(rootRegion);
        putRegionStatus(rootRegion.getFullPath(), rootRegionStatus);
        for (final Object o : rootRegion.subregions(true)) {
          LocalRegion subRegion = (LocalRegion) o;
          RegionStatus subRegionStatus = subRegion instanceof PartitionedRegion
              ? new PartitionedRegionStatus((PartitionedRegion) subRegion)
              : new RegionStatus(subRegion);
          putRegionStatus(subRegion.getFullPath(), subRegionStatus);
        }
      }
    }
  }
returning Map of client queue size against client Id

param clientMap is a Map of client queue size against ClientProxyMembershipID
geode-core/src/main/java/org/apache/geode/admin/GemFireMemberStatus.java