On 2014-12-18 05:39, Kyle Harris wrote:
What happens when I have a site hosted on a gluster drive and a user
or link points to an incorrect URL on that site and thus to a file
that doesn't exist? Obviously that would have to happen multiple
times in order to be a problem but on a busy site, the potential exist
for a denial of service.
So my new question is this. How can this be mitigated from gluster
such that missing files do not cause such an issue?
In the web server world this is actually very common, it's typical to
have Apache/nginx configured in a "If this file exists, return it,
otherwise send the query to the CMS for processing", resulting in a very
high rate of hits for nonexistent files.
Many times multiple calls are made, first to the filesystem looking for
the "file" itself, then to variations of a
/www/wordpress/cache/www.example.com/something.html.gz then
.../something.html and similar looking for pre-computed result pages
before sending the request over to the PHP engine. Normally this is a
very inexpensive set of checks.
--
Dave Warren
http://www.hireahit.com/
http://ca.linkedin.com/in/davejwarren
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