Should ToolRunner call UserGroupInformation.setConfiguration?

[John Zhuge]

Hi Gurus,

Unlike YarnChild, DN, NN, and many others, ToolRunner does not
call UserGroupInformation.setConfiguration. Is this by design?

The means you can not use "-D" to override any conf property used in UGI.
The only direct call I found is:

        String cmd = conf.get("hadoop.kerberos.kinit.command", "kinit");


Thanks,
-- 
John