@Override
  public void cleanupForClient(CacheClientNotifier ccn, ClientProxyMembershipID client) {
    try {
      if (isClosed()) {
        return;
      }
      for (Object region : rootRegions(false, false)) {
        InternalRegion internalRegion = (InternalRegion) region;
        internalRegion.cleanupForClient(ccn, client);
      }
    } catch (DistributedSystemDisconnectedException ignore) {
    }
  }
Return true if the region is initializing.
geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java