6 Replies Latest reply: Jul 2, 2014 3:06 AM by Deepak Kumar Padhy

How remote instances work on Coldfusion Clustering?

Deepak Kumar Padhy Jun 24, 2014 9:39 PM

I have just decided to set up my site using ColdFusion clustering in the staging environment. I need to find out what code adjustments are required when we move to a cluster environment. I have two machines where Coldfusion server is installed. Till now Steps I followed:

On CFServer_1 I have created a instance.(cfinstance_1)
On CFServer_2 I have created another instance. (cfinstance_2)
On CFServer_1 I have created a Cluster using these two instances.
Now on CFServer_1 I have created a IIS site(testsite.com) pointing to my codebase.
Now On CFServer_1, Using the Web Configuration Tool I have associated testsite.com with the cluster.

Now my question is Do I also need to set up the code base on the second server(CFServer_2), Create a site in IIS with same name(testsite.com) and associate the site with the cfinstance_2?

1. Re: How remote instances work on Coldfusion Clustering?

vishu#13 Jun 25, 2014 5:23 AM (in response to Deepak Kumar Padhy)

Hi Deepak,

Everything is correct

Do not worry, you need not to create a site/folder in the server where you have cfinstance_2. Just place the .cfm in the webroot only and I believe IIS is configured in the machine where you have cfinstance_1.

HTH

Thanks
VJ
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2. Re: How remote instances work on Coldfusion Clustering?

Deepak Kumar Padhy Jun 25, 2014 9:57 AM (in response to vishu#13)

Yes IIS is configured on cfinstance_1. So basically all my project files and folders must be on both the machines.Am I correct?
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3. Re: How remote instances work on Coldfusion Clustering?

vishu#13 Jun 25, 2014 10:17 AM (in response to Deepak Kumar Padhy)

Place the cfm in 2 different folders

1. in the webroot (say C:\inetpub\wwwroot)
2. in the cfinstance_2 webroot which is the other server (server 2) where you have this instance. The path will be C:\ColdFusion11\cfinstance_2\wwwroot

Thanks
VJ
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4. Re: How remote instances work on Coldfusion Clustering?

Deepak Kumar Padhy Jun 28, 2014 12:16 AM (in response to vishu#13)

Thanks VJ, for you reply. Now everything is working fine. But I have one more query. Actually I have two instances from my local machine and one instance from remote server. Session replication is not working properly. Session replication works fine when i switch between the two local instances (sessionid remains same) , but the time when it hits to the remote server instance the sessionid changes and all my session variable are lost. I have followed all the steps exactly mentioned on this link Adobe ColdFusion 10 * Enterprise Manager section . Do I need any other setting changes?

Any Help would be greatly appreciated.

Thanks,
Deepak Kumar
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5. Re: How remote instances work on Coldfusion Clustering?

vishu#13 Jul 1, 2014 5:22 AM (in response to Deepak Kumar Padhy)

Check this thread : https://forums.adobe.com/message/5616340#5616340

Also, make sure when you add the instances in the cluster then you must check the "Session Replication" option

HTH

Thanks
VJ
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6. Re: How remote instances work on Coldfusion Clustering?

Deepak Kumar Padhy Jul 2, 2014 3:06 AM (in response to vishu#13)

The Key point is
ColdFusion 10 servers must be Enterprise Edition for Session Replication To Work.

As in Developer Edition you will never see a option(Check box) for enabling session replication. Its so strange that some forums explains that "Deselecting the Sticky Session" option leads to session replication, which I tried a lot on my local dev edition but did not worked. I do not understand why Adobe does not explain these things properly on the documentation.

Thanks a lot for the info.

Thanks
Deepak Kumar
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How remote instances work on Coldfusion Clustering?

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