ColdFusion stops rendering pages - need help troubleshooting

Update 11.  I've updated the isapi_redirect.dll manually.

I'm not at work at the moment, but I'll get back to you on those error logs.  I know for a fact that there are a TON of errors for the coldfusion-error.log file, but I'l check the ones you specified and get back with you on what errors messages are there.  We learned of the white page issue at 3PM EST today, I'll check around that time for errors.

OK, here's some of the coldfusion-out.log file around the time we discovered CF was rendering white pages:  I bolded areas of interest.

Oct 15, 2013 12:31:25 PM Error [ajp-bio-8012-exec-134] - File not found: [path]/ajax.cfm The specific sequence of files included or processed is: \\[path]\ajax.cfm''

Oct 15, 2013 12:31:25 PM Error [ajp-bio-8012-exec-121] - File not found: [path]/ajax.cfm The specific sequence of files included or processed is: \\[path]\ajax.cfm''

Oct 15, 2013 13:08:10 PM Information [scheduler-0] - Run Client Storage Purge

Oct 15, 2013 14:15:10 PM Information [scheduler-1] - Run Client Storage Purge

Oct 15, 2013 15:00:00 PM Information [DefaultQuartzScheduler_Worker-2] - Task default.Public FTP Purger triggered.

Oct 15, 2013 15:00:00 PM Information [DefaultQuartzScheduler_Worker-2] - Starting HTTP request {URL='http://[server-name]:80/[path]/index.cfm', method='get'}

<GroupWise WebAccess> WebAccess Servlet is shutting down

Oct 15, 2013 15:00:27 PM Information [pool-2-thread-2] - ColdFusion stopped

10/15 15:00:54 INFO License Service: Flex 1.5 CF Edition enabled

10/15 15:00:54 INFO Starting Flex 1.5 CF Edition

Oct 15, 2013 15:00:55 PM Information [pool-2-thread-1] - Starting logging...

Oct 15, 2013 15:00:55 PM Information [pool-2-thread-1] - Starting license...

Oct 15, 2013 15:00:57 PM Information [pool-2-thread-1] - Standard Edition enabled

Oct 15, 2013 15:00:57 PM Information [pool-2-thread-1] - Starting crypto...

Oct 15, 2013 15:00:57 PM Information [pool-2-thread-1] - Starting security...

Oct 15, 2013 15:00:58 PM Information [pool-2-thread-1] - Starting scheduler...

Oct 15, 2013 15:00:58 PM Information [pool-2-thread-1] - Starting WatchService...

Oct 15, 2013 15:00:58 PM Information [pool-2-thread-1] - Starting debugging...

Oct 15, 2013 15:00:58 PM Information [pool-2-thread-1] - Starting sql...

Oct 15, 2013 15:00:59 PM Information [pool-2-thread-1] - Pool Manager Started

Oct 15, 2013 15:00:59 PM Information [pool-2-thread-1] - Starting mail...

Oct 15, 2013 15:00:59 PM Information [pool-2-thread-1] - Starting runtime...

Oct 15, 2013 15:01:01 PM Information [pool-2-thread-1] - CORBA Configuration not enabled

Oct 15, 2013 15:01:01 PM Information [pool-2-thread-1] - Starting cron...

Oct 15, 2013 15:01:02 PM Information [pool-2-thread-1] - Starting registry...

Oct 15, 2013 15:01:02 PM Information [DefaultQuartzScheduler_QuartzSchedulerThread] - Task default.Public FTP Purger misfired.

Oct 15, 2013 15:01:02 PM Information [pool-2-thread-1] - Starting client...

Oct 15, 2013 15:01:02 PM Information [pool-2-thread-1] - Starting xmlrpc...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting jaxrs...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting graphing...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting solr...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting archive...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting document...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting eventgateway...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Event Gateway Disabled.

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting FlexAssembler...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting .NET...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting Monitoring...

Oct 15, 2013 15:01:03 PM Information [pool-2-thread-1] - Starting WebSocket...

Oct 15, 2013 15:01:04 PM Information [Thread-6] - Same Serial Number found on another ColdFusion server.The server may be out of compliance.

Oct 15, 2013 15:01:06 PM Information [pool-2-thread-1] - WebSocket server listens on port: 8575

Oct 15, 2013 15:01:06 PM Information [pool-2-thread-1] - ColdFusion started

Oct 15, 2013 15:01:06 PM Information [pool-2-thread-1] - ColdFusion: application services are now available

10/15 15:01:06 INFO Macromedia Flex Build: 87315.134646

Novell GroupWise WebAccess

Version 8.0.2

(C) Copyright 1993-2010 Novell, Inc. All rights reserved.

<GroupWise WebAccess> WebAccess Servlet is ready for work

Oct 15, 2013 15:02:41 PM Error [ajp-bio-8012-exec-3] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-26] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-6] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-38] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-30] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-39] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-2] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:42 PM Error [ajp-bio-8012-exec-11] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is:[path]\index.cfm, line: 409

Oct 15, 2013 15:02:41 PM Error [ajp-bio-8012-exec-13] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:43 PM Error [ajp-bio-8012-exec-18] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:43 PM Error [ajp-bio-8012-exec-28] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:02:43 PM Error [ajp-bio-8012-exec-25] - The request has exceeded the allowable time limit Tag: cfoutput The specific sequence of files included or processed is: [path]\index.cfm, line: 409

Oct 15, 2013 15:13:33 PM Information [ajp-bio-8012-exec-66] - Session rotated successfully.

Oct 15, 2013 15:13:33 PM Information [ajp-bio-8012-exec-66] - User admin logged in.

Oct 15, 2013 15:13:36 PM Information [ajp-bio-8012-exec-66] - Starting HTTP request {URL='http://www.adobe.com:80/go/coldfusion-updates', method='get'}

Oct 15, 2013 15:13:37 PM Information [ajp-bio-8012-exec-66] - HTTP request completed  {Status Code=200 ,Time taken=854 ms}

Oct 15, 2013 15:15:56 PM Information [ajp-bio-8012-exec-66] - Session rotated successfully.

Oct 15, 2013 15:15:56 PM Information [ajp-bio-8012-exec-66] - User admin logged in.

We have Groupwise WebAccess on this server (Novell's web-based email web application).  It seemed to terminate around 3PM, and CF followed shortly thereafter.  Not sure why a task "misfired".  As for the dual-license keys, our key was registered for 2 servers (our public web server, which is this log file, and our private intranet server).  So I think that's just a false positive.

Well, on the face of it, CF10 and GW WebAccess do not work with one another due to a problem with them both wanting to hard-coded-ly use the jakarta folder, however both make use of different isapi_rewrite.dll files.

We contacted Novell and their tech was gracious enough to take a look at this and actually modified some CF worker files to "integrate" GW with CF, so they both are using the jakarta folder that CF is (seems GW was using a built in Tomcat 5.x server and CF 10 uses a 7.x version)

So maybe because of this, GW has the ability to stop CF if it encounters and issue?