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Add note about config cache expiration setting

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Lance Edgar 2022-08-12 11:19:41 -05:00
parent c7f585dfed
commit 945320d1eb
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docs/base/config/db.rst
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@ -114,6 +114,21 @@ the paths if you prefer::
beaker_cache.data_dir = /somewhere/else/data
beaker_cache.lock_dir = /somewhere/else/lock
Note that by default there is *no expiration* for the cache values,
meaning once a particular setting is cached, that value will never
expire, and therefore the setting will never be re-fetched from DB
(unless a new value is written for it, in which case the cache is
invalidated for that setting, which causes a re-fetch next time it's
requested). You may want values to expire after say, an hour, so that
settings will periodically be re-fetched regardless of write activity.
Do that by specifying the number of seconds after which values should
expire::
[rattail.config]
# nb. expire values after 1 hour
beaker_cache.expire = 3600
memcached
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