From 84a7730f47ab23b0066491b755d7163dc2d00457 Mon Sep 17 00:00:00 2001
From: Maxime Beauchemin <maximebeauchemin@gmail.com>
Date: Thu, 30 Nov 2017 22:06:16 -0800
Subject: [PATCH] [docs] making it clear sqlite shouldn't be used in a cluster
 (#3965)

---
 docs/installation.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/installation.rst b/docs/installation.rst
index 3d043b8bc..cef5cb4e3 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -498,6 +498,11 @@ look something like:
     RESULTS_BACKEND = RedisCache(
         host='localhost', port=6379, key_prefix='superset_results')
 
+Note that it's important that all the worker nodes and web servers in
+the Superset cluster share a common metadata database.
+This means that SQLite will not work in this context since it has
+limited support for concurrency and
+typically lives on the local file system.
 
 Also note that SQL Lab supports Jinja templating in queries, and that it's
 possible to overload