Github user zhangminglei commented on the issue:
https://github.com/apache/flink/pull/5375
@tillrohrmann It seems that now there is not any ```Option``` be registered
for later parse the ```configDir ``` parameter I just checked. I either
register the ```configDir``` parameter in somewhere, such as in
```CliFrontendParser``` class or directly use
```TaskManager.parseArgsAndLoadConfig(args);``` to get ```Configuration```.
What do you think of this ? @tillrohrmann Thanks.---
