private Properties getNonBlockingRouterProperties(int parallelism) {
    Properties properties = new Properties();
    properties.setProperty(RouterConfig.ROUTER_HOSTNAME, "localhost");
    properties.setProperty(RouterConfig.ROUTER_DATACENTER_NAME, LOCAL_DC);
    properties.setProperty(RouterConfig.ROUTER_UNDELETE_REQUEST_PARALLELISM, Integer.toString(parallelism));
    properties.setProperty(RouterConfig.ROUTER_UNDELETE_SUCCESS_TARGET, Integer.toString(DEFAULT_SUCCESS_TARGET));
    return properties;
  }
Generates {@link Properties} that includes initial configuration.
@param parallelism undelete request parallelism.
@return Properties
ambry-router/src/test/java/com/github/ambry/router/UndeleteManagerTest.java