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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