We have had these problems, too. Upgrading to 1.4.2 JVM really
helped us. So did switching away from ODBC usage to JDBC (this helped a ton
in fact).
We still see the occasional jrun out of memory issue. We're not
sure what causes this but our suspicions are that large result sets are
being iterated over for some purpose, and this may be causing the problem.
The memory being used for each operating during an interative process over a
large dataset does not seem to be released until the entire process is
finished. We have witnessed large spikes in memory usage during these kinds
of events.
The best advice I can give you on this would be to increase the
amount of memory in the server, until you are able to configure the JVM to
allocate a static 1.5gb of memory for the heap. This is the most that java
can take, and it it helps to have it available. The second thing I would do
is cut back on the number of extremely large queries that are cached, and
then start examine code that may iterate over very large datasets. Another
possibility, if you are running multiple applications, would be to run CFMX
as a J2EE application, and run multiple instances so that each application
is limited to being able to crash only its own instance of MX.
Good luck. We have had a ticket open with Macromedia support for
quite a while on this issue. If you get a definitive resolution please let
us know!
Eric
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Kevin Fricke
Sent: Wednesday, November 03, 2004 1:27 PM
To: CFLIST
Subject: jrun.exe crashing my server
Does anyone have any ideas why the jrun.exe process will shoot up and be
using way to much of the system memory at times? It happens way to
frequently on our server. We are trying to identify the problems.
We are using Windows 2000 Server, CFMX 6.1 and mySQL.
Thanks in advance for any input and ideas!
Kevin Fricke
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