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[docs] making it clear sqlite shouldn't be used in a cluster (#3965)

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Maxime Beauchemin 2017-11-30 22:06:16 -08:00 committed by GitHub
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@ -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