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Different JVM Heap Size on Multiple Server Instances? - Coldfusion Server Administration

I can't find where it is possible to set individual JVM Heap sizes for different instances in a Multiple Server install. According to the Macromedia White Paper "Multiple Server Instances using ColdFusion MX 7 Enterprise Edition" dated May 2005 under Optimized Applications, it states that "Different applications have different needs....Settings such as simultaneous requests...JVM heap size...can be set as needed for each individual server instance." I haven't found this to be the case. I've changed the {JRunHome}/bin/jrun.config java.args=-Xmx1024M -Xms1024m ([url]http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_18744#heap[/url]) but that is applied to all instances. I've also tried doing it with the JRun Management Console and that specifically ...

  1. #1

    Default Different JVM Heap Size on Multiple Server Instances?

    I can't find where it is possible to set individual JVM Heap sizes for
    different instances in a Multiple Server install. According to the Macromedia
    White Paper "Multiple Server Instances using ColdFusion MX 7 Enterprise
    Edition" dated May 2005 under Optimized Applications, it states that "Different
    applications have different needs....Settings such as simultaneous
    requests...JVM heap size...can be set as needed for each individual server
    instance."

    I haven't found this to be the case. I've changed the
    {JRunHome}/bin/jrun.config java.args=-Xmx1024M -Xms1024m
    ([url]http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_18744#heap[/url])
    but that is applied to all instances. I've also tried doing it with the JRun
    Management Console and that specifically says that any changes to the settings
    are applied to ALL instances.

    How does one set different heap sizes for different instances?

    spikehenning Guest

  2. #2

    Default Re: Different JVM Heap Size on Multiple ServerInstances?

    We got around this by having different jrun.config files.
    jrun.config_cfusion1, jrun.config_cfusion2, etc, etc. Then, with the jrunsvc
    tool, create the service so that it'll pull that config file. You'll need to
    customize all of the path's for each config file, however.

    ke4pym Guest

  3. #3

    Default Re: Different JVM Heap Size on Multiple ServerInstances?

    Thanks. I appreciate the quick response. I was hoping somebody would come
    through because I only have one app that needs 1.5GB and my pocketbook was
    cringing at the thought of all that wasted RAM on other sites that didn't need
    it.



    spikehenning Guest

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