[geeklog-devel] No articles on geeklog.net when not logged in?

[Dan Stoner]

>We could have a race condition in the cache refresh logic, for example.
Could 2 requests trigger it at the same time, overwriting each other? Or
something like that?


What triggers the cache (re)generation?

Also, if someone gives a pointer to which code file implements the caching
mechanism (actually writes the files) I'd be curious to take a look.


thanks,

- Dan Stoner




On Tue, Sep 1, 2015 at 10:46 AM, Dirk Haun <dirk at haun-online.de> wrote:

> Tom wrote:
>
> > Clear the Cache again.
>
> Done. Things should be back to normal.
>
>
> > I have monatastic.com checking Geeklog.net every hour for the past year
> or
> > so. Once every couple of months I may get a warning that the site is
> down.
> > Last week I got 13 warnings (3 on Sunday) but the site is always backup
> > within a few minutes (I have never found it down but I have never had a
> > chance to check the minute I got the email). The week before I got 3
> > warnings, and the week before that 2 warnings that Geeklog.net is down.
>
> Probably just overloaded. I've seen this happen on occasion.
>
>
> > I am assuming that the server is overloaded either by bots swarming our
> > website or by someone else's account. I haven't had a chance to look into
> > this yet. (Dirk if you have the time???)
>
> The site is under almost constant attack - spam attempts, attempts to
> create fake accounts, more or less systematic probes for SQL injections or
> other know vulnerabilities. Sometimes one of those overloads the site. The
> sheer amount of non-hostile bots indexing the site doesn't exactly help
> (why does every company have to run its own web crawler these days?).
>
> Anyway, that has been the reality of the web for the last couple of years
> and Geeklog shouldn't just stumble over something like that so easily.
>
> We could have a race condition in the cache refresh logic, for example.
> Could 2 requests trigger it at the same time, overwriting each other? Or
> something like that?
>
> Dirk
>
>
> --
> https://www.themobilepresenter.com/
>
> _______________________________________________
> geeklog-devel mailing list
> geeklog-devel at lists.geeklog.net
> https://pairlist8.pair.net/mailman/listinfo/geeklog-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist8.pair.net/pipermail/geeklog-devel/attachments/20150901/f87f3735/attachment.html>