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Flow of request in TeamSite

nirjari

TS71 , Win Server 2003 SP2

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I need some clarity in the way a request to TS and within TS architecture flows in order to sort out some issues I am facing.

does a preview request for a jsp page go through iwproxy ? If yes, then does it go through IIS or not ? If this request does not go through an application server then how is the code in a jsp page being processed ? When I see TeamSite architecture chart in manual depicting how a request flows in TS, it shows some requests for content going from iwproxy to content web server (IIS server) and then to TeasmSite server, while some requests bypass IIS server (content web server) and directly access the TeamSite server. So requests for what kind of content go through IIS web server(content web server) and requests for what kind of content bypass the content web server and directly access the TS server ?

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Rick Poulin

There's a nifty little picture on page 29 of your TS 71 Admin Guide.

nirjari

I know there is a picture of request flow, but it does not explain the issues I asked in here. This causes a lot of confusion and which log file shall I be checking in case of an error. So can you please address the issues I have noted here ?

thanks

Rick Poulin

does a preview request for a jsp page go through iwproxy ? If yes, then does it go through IIS or not ?

All requests on :80 are handled by the iwwebd, and in most cases, are also sent through the iwproxy. I believe the exception is 'special' application paths (/iw, /iw-bin, /iw-cc, etc.) which bypass the iwproxy. Only resource requests living in the TeamSite iwmount (proxied path resolves to /iw-mount) will then go to your content web server (IIS) on :81.

If this request does not go through an application server then how is the code in a jsp page being processed ?

It's up to you to set up a suitable environment to preview JSP files. This normally means setting up your own application container to render JSPs, and then using iwproxy rules to forward preview requests of assets in the workarea.

So requests for what kind of content go through IIS web server(content web server) and requests for what kind of content bypass the content web server and directly access the TS server ?

Again, every HTTP request on port 80 will go through iwwebd. IF the resource matches a known mapping (/iw, /iw-bin, etc.) then it's rendered and passed along by iwwebd. IF the resource is anywhere else, iwproxy rules are applied. Then, if the transformed URL refers to a resource in iwmount, it's sent to :81; otherwise iwwebd attempts to resolve the transformed URL *as a static file* unless otherwise configured, e.g. to proxy the request to another servlet container.

nirjari

if the transformed URL refers to a resource in iwmount, it's sent to :81; otherwise iwwebd attempts to resolve the transformed URL *as a static file* unless otherwise configured, e.g. to proxy the request to another servlet container

By transformed URL, you mean a URL request on which iwproxy_preconnect_remap rule is applied ?

All files (that I know) are in iw-mount view, so proxy server should send all the requests for a file in TeamSite to the port 81 on IIS server. But still in the picture in manual, requests are sent to TeamSite server, bypassing the content web server. So for what kind of files, does proxy server send requests direcctly to the TS server and bypass IIS server ?

Requests for JSp files lying in iw-mount are sent to content web server which is configured to display JSP files or is the request directly redirected to servlet engine by the proxy server ?By that I mean to ask is, proxy server sends requests either to content nweb server or to TS server. Does it send request to anywhere else apart from these two servers ?

Rick Poulin

By transformed URL, you mean a URL request on which iwproxy_preconnect_remap rule is applied ?

I mean the URL resulting from such a transformation.

All files (that I know) are in iw-mount view, so proxy server should send all the requests for a file in TeamSite to the port 81 on IIS server. But still in the picture in manual, requests are sent to TeamSite server, bypassing the content web server. So for what kind of files, does proxy server send requests direcctly to the TS server and bypass IIS server ?

These URLs aren't going to IIS, for example:
/iw-cc/command/iw.ui
/iw/help/tst/pt/
/iw-bin/show_env.cgi

Requests for JSp files lying in iw-mount are sent to content web server which is configured to display JSP files or is the request directly redirected to servlet engine by the proxy server ?By that I mean to ask is, proxy server sends requests either to content nweb server or to TS server. Does it send request to anywhere else apart from these two servers ?

It can, and I believe that's what you're looking to do. For instance, you may want to remap
regex=/iw-mount/default/main/branch/WORKAREA/areaname/(.*\.jsp)$=http://localhost:8082/$1
where you'd have a servlet container running on port :8082 on your TeamSite machine. Previewing such a JSP file would go through iwwebd, then iwproxy, then your servlet container (and not IIS).

Plot with Script.png

plot without Script.png

niniti

Oh sorry , wrong post by me

nirjari

I guess I am stretching this question too much. I want to get conceptual clearance.

These URLs aren't going to IIS, for example:
/iw-cc/command/iw.ui
/iw/help/tst/pt/
/iw-bin/show_env.cgi

iwwebd sends these requests directly to servletd, they dont even go to proxy server.
In the picture in manual, iwwebd sends requests to proxy server or to servletd. The requests sent to iwproxy are sent to content web server or TeamSite server (bypassing content web server). My understanding is all the requests that proxy server sends should go to IIS server as iwmount contains view of all the files. So for what kind of files would a proxy server bypass the IIS server and send requests directly to TeamSite server except the requests which are remapped to a different location.

Rick Poulin

So for what kind of files would a proxy server bypass the IIS server and send requests directly to TeamSite server except the requests which are remapped to a different location.

I don't think anybody outside of Interwoven engineering knows that.. but I'd venture a guess that certain client-side applications (i.e. the WFM and the Local File Manager) which need access to the files directly rather than a web-rendered view of them, may use the iwproxy in some fashion *in conjunction* with the iw-cc servlet. I don't believe that arrow in the diagram is intended to represent typical browser requests, much less any business user interaction with the system. Iwov may also have been purposely generic about that arrow, since I'm sure there's tons more that occur internally that would not fit the purpose of the diagram.

nirjari

Thanks a lot for this information. I will close this thread here.