.setVirtualCores(2)
.setMemory(memory, ResourceSpecification.SizeUnit.MEGA)
.setInstances(numInstances)
.build();
return builder.add(new LogSaverTwillRunnable(Constants.Service.LOGSAVER, "hConf.xml", "cConf.xml"), spec)
.withLocalFiles()
.add("hConf.xml", hConfFile.toURI())
.add("cConf.xml", cConfFile.toURI())
.apply();
}