[Koha-bugs] [Bug 13431] Shared FastMmap file causes issues

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

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=13431

--- Comment #13 from Jacek Ablewicz <abl at biblos.pk.edu.pl> ---
Not sure how proceed with this one.. I have to admit removing fastmmap caching
completely is kinda tempting, but OTOH it's not too hard to imagine some setups
where such caching system would be quite beneficial performace-wise. What if
we:

1) do not load nor intialize the Cache::FastMmap module, unless such caching
system is explicitly requested by the user (CACHING_SYSTEM=fastmmap_cache)
2) also do not load it when $ENV{GATEWAY_INTERFACE} is not defined
3) include _both_ the UID and the database name in the /tmp sharemap file name

That way it:
- would still be a trival patch,
- this feature will remain available for the people who really want/need it
- and (unless I'm very much mistaken) it should cover almost 100% of the
problematic cases (?).

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