DF> I would be willing to bet that your issue is not in the APPLICATION SERVER,
DF> but in the code. This is simply not normal behavior for ColdFusion/JRun or
DF> it would not be used as widely as it is.
That's somewhat of a surprising comment, Macromedia's forums were
littered with reports of just how unstable CFMX for J2EE on JRUN4 is.
>From that forum I was given the impression that such behavior IS quote
common. It's definately interesting, and gives some glimmer of hope,
to hear another side.
Scouring the various forums available last night, I actually got the
impression that it Isn't that widely used, exactly for that reason,
that it isn't very stable.
There also appeared to be a distinct lack of willing, or ability (not
sure which) to help on Macromedia's part.
DF> First: are you using ColdFusion? or just JRun?
I'm running CFMX for J2EE. The reason for that decision, to my
knowledge, was simply to allow for distributed processing across
clustered servers.
I am coming in on the tail end of this project, so I don't know the
full reasons for the design decisions made. All I do know, is that
right now, I have a problem with the JRUN service on the server
spiking, crashing, and requiring me to manually reset it.
DF> Second: What is your Web Server?
We're using IIS on a separate box, using the JRUN connector.
DF> Third: depending on whether you are using ColdFusion or JRun, you will want
DF> to use the appropriate debugging tools to see what is going on. If you are
DF> using both, I would debug first one, then the other.
I'm looking into debugging JRUN, the CFMX code is at least stable
enough to support 2/3 users... so It's leaning toward JRUN simply not
being man enough for the job. Especially in the face of examples such
as :
http://www.macromedia.com/cfusion/webforums/forum/messageview.cfm?catid=69&threadid=806965
http://www.macromedia.com/cfusion/webforums/forum/messageview.cfm?catid=69&threadid=799421
And it's the JRUN connector which ultimately errors.
DF> Hope this helps.
DF> -Drew Falkman
Thanks for the suggestions..
~ Jon
DF> -----Original Message-----
DF> From: Jon Austin [mailto:[EMAIL PROTECTED]
DF> Sent: Thursday, April 08, 2004 8:19 PM
DF> To: JRun-Talk
DF> Subject: JRUN Stability
DF> I'm having an issue on a CFMX / JRUN server, when we get around 14
DF> simultaneous users, running an average sized lookup, our CPU spikes,
DF> our memory dives, and JRUN bites the dust.
DF> I've tried this on a single processor, 512mb machine, and it survived
DF> the load for approx 10-15 minutes.
DF> I switched to another server with 2 CPU's, and 1gb of ram, and it died
DF> in 5 minutes.. That server did have two CFMX JRUN server instances on
DF> it however. Only one was in "active" use though, the other was
DF> running, but with no connections.
DF> Both machines were tested multiple times, and the same behavior
DF> continued.
DF> Does anyone have any tuning suggestions, or alternative's like porting
DF> our app to run off JBOSS?
DF> TIA,
DF> ~ Jon
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