2012/11/7 Leon Rosenberg <rosenberg.l...@gmail.com>:
> Hello,
>
> I have a pretty weird behavior I don't understand in a customers
> application. We have a drop-in monitoring webapp (moskito.anotheria.net)
> which is installed by placing a jar into the target webapp and adding a
> filter. This filter works pretty similar to struts 1.x, grab the url,
> execute  some code, make a forward to a jsp. It works in many applications.
>
> However we encounter recently a problem with a clients installation, that
> req.getForward goes back to the apache httpd in front of tomcat and in some
> cases to the browser.
>
> Here what usually happens:
>
> Browser calls http://server/blub
> in localhost_access logs I see the call to blub
> 0:0:0:0:0:0:0:1 - - [07/Nov/2012:09:45:32 +0100] "GET
> /moskitodemo/mui/mskThresholds HTTP/1.1" 200 21398
>
> The servlet makes an internal forward
> (req.getRequestDispatcher(path_to_jsp).forward(req, res)).
> I don't see this in localhost acces (neither do i expect to see it).
> The jsp is executed the markup is returned to the client, everyone is happy.
> Now what happens in _this_clients_ installation:
>
> Browser calls http://server/blub
> I see following in the access log

Where this access log is configured?

> [1] 10.250.3.1 - - [07/Nov/2012:09:43:51 +0100] "GET
> /net/java/dev/moskito/webui/jsp/Thresholds.jsp HTTP/1.1" 404 0 "-"
> "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML,
> like Gecko) Chrome/23.0.1271.64 Safari/537.11"

Why 404? Do you have this file?

> [1] 10.250.3.1 - - [07/Nov/2012:09:43:51 +0100] "GET
> /net/java/dev/moskito/webui/jsp/CSS.jsp HTTP/1.1" 200 0 "
> http://app1.preprod.parship.office:8080/mui/mskThresholds"; "Mozilla/5.0
> (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko)
> Chrome/23.0.1271.64 Safari/537.11"
> [1] 10.250.3.1 - - [07/Nov/2012:09:43:51 +0100] "GET /js/function.js
> HTTP/1.1" 200 8667 "
> http://app1.preprod.parship.office:8080/mui/mskThresholds"; "Mozilla/5.0
> (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko)
> Chrome/23.0.1271.64 Safari/537.11"
> [1] 10.250.3.1 - - [07/Nov/2012:09:43:51 +0100] "GET /js/wz_tooltip.js
> HTTP/1.1" 200 35082 "
> http://app1.preprod.parship.office:8080/mui/mskThresholds"; "Mozilla/5.0
> (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko)
> Chrome/23.0.1271.64 Safari/537.11"
> [1] 10.250.3.1 - - [07/Nov/2012:09:43:51 +0100] "GET
> /js/jquery-1.8.0.min.js HTTP/1.1" 404 0 "
> http://app1.preprod.parship.office:8080/mui/mskThresholds"; "Mozilla/5.0
> (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko)
> Chrome/23.0.1271.64 Safari/537.11"

Why 404?

> [1] 10.250.3.1 - - [07/Nov/2012:09:43:51 +0100] "GET /favicon.ico HTTP/1.1"
> 404 0 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2)
> AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11"
>
> The weird thing is that I do see the internal forwards, but I don't see the
> external calls in the logs.

What do you mean by "external calls"? Redirects (302, 307)? What did
you expect to see there?

> There are a lot of strange things and history in the configuration of this
> app, so I don't know where to start digging.
>
> Any ideas what configuration can enforce such a behavior?
>
> some data:
> java 1.7.0-b147
> tomcat 6.0.35
> spring 3.1.0 (with a lot of interceptors)
> connectors:
>
>    <Connector port="8009" protocol="AJP/1.3"
> maxThreads="900"
>     redirectPort="8443"
>     emptySessionPath="true"
>     />
>     <Connector port="8080" protocol="HTTP/1.1"
>                connectionTimeout="20000"
>                emptySessionPath="true"
>                redirectPort="8443"
>                />
>

Best regards,
Konstantin Kolinko

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