I have never had to do this, but I think this has got to be the best
solution that would work without any problems.
Dan, nice post and very informative if ever I find myself in that position.
On 6/6/07, Dan G. Switzer, II <[EMAIL PROTECTED]> wrote:
>
> Mike,
>
> >I'm going to be moving a fairly high-traffic site to a new hosting
> >company in a few weeks, and I'm starting to plan out the tasks that
> >need to be done.
> >
> >How do you guys handle the transition period while the domain is
> >delegating, which can be up to 4 days? For this period, both sites
> >will be active, depending on the status of the dns servers the users
> >are connected to.
>
> Having just done this a couple of weeks ago, here's what I did. Once we
> migrated data to the new servers, we could not afford to have the old
> servers being used--because data would be out-of-sync.
>
> 1) If you have the time before hand, you could create a domain for the new
> server (like www2.mydomain.com) that points to the new server IP address.
> This isn't necessary, but it will allow you to "hide" the IP address of
> the
> new server.
>
> 2) Once your data is migrated and you're ready to start using the new
> site,
> just use a <cflocation /> in your application.cfm to forward any requests
> to
> the new site. Something like this should work:
>
> // general UDF library
> function getCurrentUrl(){
> var sUrl = CGI.SCRIPT_NAME;
> var sQueryString = CGI.QUERY_STRING;
> var aKeyPair = "";
> var i=0;
> var sRegEx = "";
>
> // the template name is not appended to the script's name, append
> it
> now
> if( NOT Compare(Right(sUrl, 1), "/") )
> sUrl = sUrl & getFileFromPath(getBaseTemplatePath());
>
> // if the query string is not empty, append the full URL
> if( len(trim(sQueryString)) ) sUrl = sUrl & "?" & sQueryString;
> return sUrl;
> }
>
> <!---//
> Make sure to replace "www2.mydomain.com" with your real domain
> //--->
> <cfset sNewUrl = iif(CGI.SERVER_PORT eq 443, de("https"), de("http")) &
> "://www2.mydomain.com" & getCurrentUrl() />
> <cflocation url="#sNewUrl#" addtoken="false" />
> <cfabort />
>
> As DNS begins to propagate, you'll see the hits on your old server
> diminish
> and eventually stop altogether.
>
> This will all be completely transparent to the user.
>
> -Dan
>
>
>
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