@Override
  public void clearCompactionQueues(ServerName serverName, Set<String> queues)
    throws IOException, InterruptedException {
    get(admin.clearCompactionQueues(serverName, queues));
  }
The {@link Admin} implementation which is based on an {@link AsyncAdmin}.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AdminOverAsyncAdmin.java