[thelist] Spreading sites between different hosts

[Peter Small]

Thanks Anthony for your response.

The implications of this are very interesting. If I may, I'd like to extend
this thought to the components of a Web page.

(1)
Ignoring the different speeds of response between different servers through
traffic etc,would there be a time penalty if a page were designed to have
ten gifs with each of the gifs located on a different servers (i.e. ten
gifs and eleven servers)?

(2)
Would there be a time penalty if items included in a Web page were accessed
from several different databases on different servers from that holding the
Web page (assuming all the databases were equally fast)

(3) If a cgi script updated the visitor counter on a Web page, would there
be a time penalty if that cgi script was on another server?

Note: different servers means servers at widely separated locations.

peter
http://www.avatarnets.com




>Peter Small wrote:
>>
>> Resut: links between different parts of the site switch between not only
>> pages but also different host servers.
>>
>> It's when I try to think about what time penalties or other problems might
>> occur that my lack of knowledge is exposed. For example, does the initial
>> connection to a site hold that connection open so that all further requests
>> to that server are dealt with  faster than the initial connection?
>
>Short answer: No - HTML is stateless, there are no open connections for
>the next page
>request.
>
>> A link from one page on a site to another page on the same site and same
>> server can link simply by referencing the file name if the new file (page)
>> is in the same directory. Is this faster than if the link referenced the
>> full URL?
>
>Short answer: No. The browser has to resolve the URL to a full hostname
>anyway.
>
>> Similarly. If a link to another page in the same directory of the same
>> server is referenced by the full URL, is the link appreciably faster than
>> if the link took you to a page on a different server.
>
>Short answer: (See last answer. To save you eyeball time - no. ;-)
>
>> In short, how much of a penalty is there if I spread the pages of a site
>> around several different host servers? What is the best way to think about
>> this kind of network/logistics problem?
>
>Long answer: Internet bottlenecks, packet storms, local and remote
>bandwith and
>general traffic patterns can vary the performance of serving pages via
>your different
>hosts. Making the 'farther' away server seem faster than a local server.
>
>If you are unconcerned about hosting fees - why not co-lo or lease your
>own server
>and put all your tools there?
>
>--
>Anthony Baratta
>President
>KeyBoard Jockeys
>                    South Park Speaks Version 3 is here!!!
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