[Koha-bugs] [Bug 9005] Changing sysprefs requires restart under Plack

[bugzilla-daemon at bugs.koha-community.org]

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=9005

--- Comment #2 from Jared Camins-Esakov <jcamins at cpbibliography.com> ---
Created attachment 13182
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http://bugs.koha-community.org/bugzilla3/attachment.cgi?id=13182&action=edit
Bug 9005: Allow user to disable syspref cache

Because C4::Context uses an in-memory hash for caching sysprefs,
changing a syspref under a multi-threaded persistent environment
requires a server restart. This patch makes it possible disable
the syspref cache.

To test:
1) If you are using a multi-threaded persistent server (Starman, etc.),
   change a syspref and note that the effects of the syspref change may
   or may not be visible on any given request before applying this patch.
   You will need to choose a syspref with obvious effects that can be
   seen by simply refreshing the page. I recommend enabling or
   disabling additional languages in the OPAC, since you can refresh the
   page a dozen times and reasonably expect to see the new behavior you
   set only 1/n of the time.
2) Apply patch.
3) Add "C4::Context->disable_syspref_cache();" to your koha.psgi file
4) Repeat step 1, noting that you never see the stale behavior.
5) Run test at t/db_dependent/Context.t.

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