I believe it's related to your client code - In our use case we do easily
15k writes/sec in a cluster lower specced than yours.

Check that your jdbc connection has autocommit off so Phoenix can batch
writes and that table has a reasonable UPDATE_CACHE_FREQUENCY  ( more than
60000 ).
On Thu, 12 Jul 2018, 21:54 alchemist, <[EMAIL PROTECTED]> wrote: