Workaround of Impala Dynamic Resource Pools doesn't work

[#1]

I found a workaround doesn't work for Impala Dynamic Resource Pool.

As described here: Cloudera Bug: OPSAPS-45046

I tried to specify some groups for the root pool (Should it be root.default in Impala Admission Control? I'm not quite sure), bu it seems doesn't work.

Has anyone solved the problem? Any suggestion will be appreciated.