[LRUG] VPS performance and monitoring

[David Salgado]

TL;DR - it's what you should expect.

I've been hosting *lots* of VMs on several different hosting providers.
We're currently on Rackspace, where we've been for a few years, but I look
around fairly often.

>> - We had some problem with other VPS'ese stealing cpu time from our VPS.

I call this "VPS Weather" It's a fact of life when you're on a shared
physical host with other people. There may be VM hosting companies who
accurately limit resources so that one customer never gets an unfair share
of the resources of physical host, but I've never found one (and I can't
imagine why they would want to, from a business standpoint).

>> - We had problems with DNS latency (we are talking seconds here)

I haven't encountered this problem before, so it's possible it's something
that DO suffer from, and others don't. However, the way our architecture
works, we don't do many DNS lookups, so the fact that we haven't seen it
doesn't really tell you much.

>> Each time we found a problem they did not trap it in any kind of
monitoring.

Ditto. I always hear about problems from our own monitoring solutions long
before I get alerts from the hosting company (if I ever get them). The
lesson is to never skimp on your monitoring. It's also important to have
monitoring that sits *outside* your hosted system, to pick up problems with
their internet connectivity.

David



On 4 March 2015 at 09:40, Klaus Hebsgaard <klaus at hebsgaard.dk> wrote:

> Hi
>
> I am the developer and siteOp for Be My Eyes.
> Currently we host our site on Digital Ocean (DO) and we are pretty happy
> with them, they even provided us with at lot of free hosting.
> We have 2 load balancers, 3 web servers and 3 db hosts.
>
> However we have had a few issues with the VPS'ese on DO.
>
> - We had some problem with other VPS'ese stealing cpu time from our VPS.
> - We had problems with DNS latency (we are talking seconds here)
>
> Each time we found a problem they did not trap it in any kind of
> monitoring.
>
> So my question is: Is this what we should expect from VPS? Or are there
> better alternatives out there?
>
> Med Venlig hilsen / Best regards
>
> Klaus Hebsgaard
>
> Website: http://www.hebsgaard.dk
> Blog: *http://www.khebbie.dk <http://www.khebbie.dk>*
> LinkedIIn: http://www.linkedin.com/in/klaushebsgaard
> Github: https://github.com/khebbie
>
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