FYI, the 4.12.0 release had a critical issue [1] that has been fixed in the 4.13.0 release. Please make sure you do not use the 4.12.0 release and instead use the 4.13.0 release. Sorry for any inconvenience. More details on the release may be found here [2].
Thanks, James [1] https://issues.apache.org/jira/browse/PHOENIX-4335 [2] https://blogs.apache.org/phoenix/entry/announcing-phoenix-4-13-released