@Override
  public void close() {
    super.close();
    if (buckets != null) {
      for (ProxyBucketRegion bucket : buckets) {
        bucket.close();
      }
    }
  }
Close the adviser and all bucket advisors.
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/RegionAdvisor.java