Separation of YQL & Storage Layer

General
1

Is YQL and Document DB tightly coupled? Is it possible to separate YQL on another set of machines?

2

No, this is not possible.

3

This was answered on the slack forum with a workaround if you need it:

  • blacklist some tservers so that they do not hold any tablets ( yb-admin change_blacklist ADD ) then they will act as query layer only
  • disable YSQL (--enable_ysql=true ) one some others, that they will act as storage layer only