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18 changes: 15 additions & 3 deletions docs/index.rst
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Expand Up @@ -21,9 +21,21 @@ Add ``django_select`` to your URL root configuration:
# … other patterns
]

Finally make sure you have a persistent cache backend setup (NOT
:class:`.DummyCache` or :class:`.LocMemCache`), we will use Redis in this
example. Make sure you have a Redis server up and running::

``django-select2`` requires a cache backend which is **persistent**
across all application servers..

**This means that the** :class:`.DummyCache` **backend will not work!**

The default cache backend is :class:`.LocMemCache`, which is persistent
across a single node. For projects with a single application server
this will work fine, however you will run into issues when
you scale up into multiple servers.

Below is an example setup using Redis, which is a solution that
works for multi-server setups:

Make sure you have a Redis server up and running::

# Debian
sudo apt-get install redis-server
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