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Webmaster Forum / ColdFusion / Server Administration / July 2008CF8 with remote IIS - 2 Quick Questions
All, For the past couple of days we have been re-designing a clients systems architecture. I come from a J2EE background and would like to understand a few things in CF8 / Jrun4 The systems model we are looking at is HLB IIS Web Servers and JRUN multiple instances likely clustered (and database mirroring on the back-end as well). The one piece that has got us a little puzzled is the where do the source CFM files need to exist. We played around a little on a single server deployment and are now moving to playing in a multi-server (so separate IIS Web server and JRun/CF server) to better understand the CF - Jrun - IIS relationship. The two quick questions I have are: a) Is there a simple install I can run on the IIS web server so that I can get the JRun connectors installed easily? some people say just run the complete CF8 install and disable the services but I would prefer to simply install the connector software (I believe this would be the configuration tool & IIS Dll's)? b) Where do we need to put the source code (CFM,CFC etc)? If the answer is IIS Web Server is there anyway to keep them only on the JRun server (i would expand the ISAPI filtering to have ALL content delivered by JRun --> os include htm, gif etc). Also from a processing perspective is the source CFM file passed to JRun everytime or only once (and compiled to javabyte code) and the next time nothing is passed except variables?! Is there any point in deploying a CAR file into the instance?! On our single server setup it seemed like the CF instance was still looking at the IIS www-root..... Also anyone who can share their experience in such a configuration would be greatly appreciated, Thanks, Daniel > a) Is there a simple install I can run on the IIS web server so that I can get > the JRun connectors installed easily? http://www.adobe.com/support/coldfusion/administration/cfmx_in_distributed_mode/ cfmx_in_distributed_mode02.html > b) Where do we need to put the source code (CFM,CFC etc)? On both the IIS and JRun servers in the same path is the only way that is supported by Adobe. If you disable the 'check that file exists' option in IIS and tweak the web.xml file you don't need to have the code on the IIS server though. Jochem  SignatureJochem van Dieten Adobe Community Expert for ColdFusion Hi Jochem, Thanks for the quick reply. I looked at the link you provided. I see now why simply installing all of CF8 might be easier (and then disable JRUN services and CF ODBC stuff). Which would you recommend? Would all these steps defined in the link be automated and working correctly or would I still making these manual mods? Also would the wsconfig.exe work (for future administration by client)?! Could elaborate a bit more on tweaking the web.xml file to allow for single directories? I guess if we do need to keep them on both boxes we at least automatically get all static content served by the web server. Thanks again, Daniel > I looked at the link you provided. I see now why simply installing all of CF8 > might be easier (and then disable JRUN services and CF ODBC stuff). Which would > you recommend? I would install by hand without the full CF. > Could elaborate a bit more on tweaking the web.xml file to allow for single > directories? What do you need to know? What is the deployment scenario, which content goes where, etc.? Jochem SignatureJochem van Dieten Adobe Community Expert for ColdFusion Thanks again, We basically want all content to be served by CF8/JRun. So we want the IIS to be basically emtpty and source code cfm , cfc, htm etc on the CF App server(s). Daniel > We basically want all content to be served by CF8/JRun. So we want the IIS to be basically emtpty and source code cfm , cfc, htm etc on the CF App server(s). That is not very efficient. But it is possible by adding a mapping in web.xml for * to the FileServlet. Jochem SignatureJochem van Dieten Adobe Community Expert for ColdFusion When you say 'that is not very efficient' what do you base this on? 99.5% of the content is CF related pages. Each client/subscriber is running approx 8,000 CF pages and only few images exist. Am I missing something here with regards to what you mean by efficiency? Is your efficiency comment only related to the static content piece or is there more to it? Thanks again for your replies, daniel > When you say 'that is not very efficient' what do you base this on? 99.5% of > the content is CF related pages. Each client/subscriber is running approx 8,000 > CF pages and only few images exist. Am I missing something here with regards to > what you mean by efficiency? Is your efficiency comment only related to the > static content piece or is there more to it? Running static content through IIS/JRun instead of only through IIS is very inefficient. Not only does it add extra layers (JRun, extra TCP connection), but it also affects caching. IIS automatically adds some HTTP headers to improve caching to static content. But from the perspective of IIS the content it gets from JRun is dynamic so it does not add those headers. JRun itself doesn't add them either, so you will end without any cache hints whatsoever for your static content. Most likely the net effect is that each image will get downloaded once for every page that uses it, versus once per session + some cache validation. Jochem SignatureJochem van Dieten Adobe Community Expert for ColdFusion Hi Jochen, Just a quick note to see if there is something funny with these before diving into these: Are there any 'issues' with CF data_sources and CF Templates in a distributed environment? We are getting messages data-source xx not found while data-source xx is created in cf administrator and also validates. Also error messages around CSS template not found. Did you come across these?! Thanks, Daniel Already found the solution to this. Had to do with the instance specific CFAdmin's. Thanks, Daniel Can you please post the link or the steps you took to explore or resolve this? I'm getting the same results, and it's pretty frustrating. To resolve it we had to define template paths, mappings and data sources for each of the instances we created. Essentially in our configuration we have 3 instances running with their own JVM config but also their own CF Admin piece (so their own data sources, mappings etc). Hope this helps or let me know if you need more info around the IIS configuration of JRun connectors. daniel |
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