@Override
  public IsCleanerChoreEnabledResponse isCleanerChoreEnabled(RpcController c,
    IsCleanerChoreEnabledRequest req) throws ServiceException {
    return IsCleanerChoreEnabledResponse.newBuilder().setValue(server.isCleanerChoreEnabled())
      .build();
  }
Get list of userspace table names
@param controller Unused (set to null).
@param req        GetTableNamesRequest
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java