[OSM-talk] OSM server on a (Ubuntu) VM?

Graham Jones grahamjones139 at gmail.com
Tue Dec 21 14:51:09 GMT 2010

I agree with Nick - for small map rendering applications a virtual machine
has worked ok for me.   I got the impression from the original message that
this was a relatively small application so should be ok?

The main limitation with a virtual machine has been available storage space
- a few extra GB of virtual disk makes the thing get a lot more expensive.
That is why at the moment I am using my old laptop to do the database
processing, but because it is connected to the internet via my domestic
broadband connection it seems quite sluggish from the outside world.
My intention is to separate out the web front end from the rendering and use
a virtual machine for the web interface, and do rendering on the more
powerful machine at home, but this does not work yet!


On 21 December 2010 14:31, Nick Whitelegg <Nick.Whitelegg at solent.ac.uk>wrote:

> >In general databases and Virtual machines do not work well together.
>  Databases tend to want fast >disk accesses and the virtual machine bit
> slows these down.  Also typically virtual machines >restrict the memory and
> databases use the memory to reduce disk accesses so you get a second hit
> >there.  Virtual machines work better for lightly loaded cpu intensive work.
> Bear in mind though that many of us have to make do with VMs, for financial
> reasons. While trying to load the whole planet or even the whole of a
> country like the UK might be difficult, if you try and cut down the data,
> then it should (IMX) work reasonably well. For example, don't try to do the
> whole world or even the whole of your country, use a subset of data such as
> your region, or, if possible try and design your app to minimise the amount
> of data it needs (e.g. use osmosis to cut out irrelevant data).
> Nick
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Graham Jones
Hartlepool, UK.
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