@Override
        public void onNext(Result[] results, ScanController controller) {
          for (Result result : results) {
            try {
              QuotaTableUtil.parseResultToCollection(result, settings);
            } catch (IOException e) {
              controller.terminate();
              future.completeExceptionally(e);
            }
          }
        }
Compact the region at specific region server.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/RawAsyncHBaseAdmin.java