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Date: Mon, 10 Feb 2020 23:07:57 -0800
From: Robin Lee Powell <rlpowell@digitalkingdom.org>
To: lojban@googlegroups.com
Subject: Re: [lojban] Re: What's going with CloudFlare and caching and such.
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On Fri, Feb 07, 2020 at 09:35:34AM -0800, la .eris. wrote:
> Personally, this is seeming like more trouble than it's worth.
> Pages keep displaying improperly (looking like I'm not logged in,
> or like someone else is logged in). I'd prefer to just have the
> site down when your server is down and have everything work
> properly the rest of the time.

I've gotten a *lot* of negative feedback about outages, and I'm
pretty sick of it; the complaints about the current state have been
quite mild by comparsion.

> Incidentally, how do the Wikimedia Foundation wikis handle
> caching?

Well, presumably they have their mediawiki tuned to not tell abject
lies to the upstream systems, but I imagine they have their own
caching servers that they can control directly.  We could do that
too if we didn't mind paying for it, but always-on cloud-based web
servers are typically not very cheap, which is why I've always run
stuff out of my house for "free".

Oh, turns out their architecture is described at
https://www.mediawiki.org/wiki/Manual:MediaWiki_architecture

Speaking in general, there are many ways to handle this sort of
situation, most of which I'm personally familiar with (as this is my
day job), but all of them require considerable time spent or
considerable money or both.

If people (or the LLG) want to pitch in to spend money for always-on
Squid caching proxy servers that aren't at my house, that's
certainly an option, but for that to actually work properly we'd
*still* need to figure out why mediawiki is telling lies in the
cache control headers.

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