Hi,
I have ran into a problem, fresh after migrating to IIS 8.5 (from IIS 6), CF 11.07-ent.
Does this make any sense to the pros out there?
Here is what I would see:
In taskman, as SOON as the Max JVM Heap memory was reached (for coldfusion.exe), CF would become partially or fully unresponsive.
I understand about connector tuning, and that is not the problem here. Here are the isapi_redirect log lines:
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This first line shown below is the LAST line in the log having to do with connections (as you can see, I am a long way from maxing out. Also, my server.xml file's MaxThreads and Timeout are set to 1600 and 60000 and I only use one wsconfig/x, and one application pool, for a total of 1600 connections. I was very stable with these same numbers in IIS6)
[1532:3796] [info] ajp_process_callback::jk_ajp_common.c (2244): (cfusion) current reuse count is 91 of max reuse connection 800 and total endpoint count 1600
then hits error condition
[1532:3796] [info] jk_open_socket::jk_connect.c (817): connect to 127.0.0.1:8014 failed (errno=61)
[1532:3796] [info] ajp_connect_to_endpoint::jk_ajp_common.c (1127): (cfusion) Failed opening socket to (127.0.0.1:8014) (errno=61)
[1532:3796] [error] ajp_send_request::jk_ajp_common.c (1787): (cfusion) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=61)
[1532:3796] [info] ajp_service::jk_ajp_common.c (2903): (cfusion) sending request to tomcat failed (recoverable), because of error during request sending (attempt=2)
[1532:3796] [error] ajp_service::jk_ajp_common.c (2924): (cfusion) connecting to tomcat failed (rc=-3, errors=178, client_errors=478).
[1532:3796] [error] HttpExtensionProc::jk_isapi_plugin.c (2763): service() failed with http error 503
(I also occasionally see the following too)
[1532:14080] [info] ajp_connection_tcp_get_message::jk_ajp_common.c (1401): (cfusion) can't receive the response header message from tomcat, tomcat (127.0.0.1:8014) has forced a connection close for socket 5684
[1532:14080] [error] ajp_get_reply::jk_ajp_common.c (2376): (cfusion) Tomcat is down or refused connection. No response has been sent to the client (yet)
Once the error condition starts, then these error lines repeat many many times (with different thread number ... ie [1532:xxxxx] where 1532 is the PID for the IIS worker process for the application pool I am in).
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CF then either hangs, or occasionally comes back on its own (maybe 20-30 minutes later) and the isapi_redirect.log resumes logging normal activity (no more errno=61).
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Then I turn OFF Integrated Pipeline mode (making it classic), reset, and the problem goes away.
I am a pure CF shop, no .NET or .ASP, just CF and static HTML on my IIS. I do not need Integrated mode. But since I have read on google that Jakarta/CF is "supposed" to play nice with Integrated Mode, I am very concerned my problem is a canary in a coal mine, ESPECIALLY since it triggers right when Max JVM is reached(!) which should have nothing to do with that since this is just committed, not used, memory, right? It does not make sense to me.
My clue summary: CF instability/hangs are triggered right when MAX JVM Heap is reached (as shown in taskman for coldfusion.exe), AND I use Integrated Pipeline Mode instead of Classic mode. (Improper connector tuning is not implicated in this situation).
Opinions?
Thanks!
Byron_K