question about RegionManager

[Tao Xie]

hi, all

I'm reading the code of RegionManager, I find in the following method there
is an situation when nRegionsToAssign <= nregions, the code only assigns 1
region.
Is this correct? Hbase version 0.20.4.

 private void assignRegionsToMultipleServers(final HServerLoad
thisServersLoad,
    final Set<RegionState> regionsToAssign, final HServerInfo info,
    final ArrayList<HMsg> returnMsgs) {
    boolean isMetaAssign = false;
    for (RegionState s : regionsToAssign) {
      if (s.getRegionInfo().isMetaRegion())
        isMetaAssign = true;
    }
    int nRegionsToAssign = regionsToAssign.size();
    // Now many regions to assign this server.
    int nregions = regionsPerServer(nRegionsToAssign, thisServersLoad);
    LOG.debug("Assigning for " + info + ": total nregions to assign=" +
      nRegionsToAssign + ", nregions to reach balance=" + nregions +
      ", isMetaAssign=" + isMetaAssign);
    if (nRegionsToAssign <= nregions) {
      // I do not know whats supposed to happen in this case.  Assign one.
      LOG.debug("Assigning one region only (playing it safe..)");
      assignRegions(regionsToAssign, 1, info, returnMsgs);
    } else {