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Bug 114906

Summary: ccm-tools should provide a default /etc/conf/envars
Product: [Retired] Red Hat Web Application Framework Reporter: Daniel BerrangĂ© <berrange>
Component: installationAssignee: ccm-bugs-list
Status: CLOSED RAWHIDE QA Contact: Jon Orris <jorris>
Severity: medium Docs Contact:
Priority: medium    
Version: nightly   
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OS: Linux   
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Last Closed: 2004-02-19 18:33:31 UTC Type: ---
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Description Daniel Berrangé 2004-02-04 10:36:19 UTC 
Description of problem:
The ccm-tools package should install a default set of envvars suitable
for a typical production install. Probably:

JAVA_OPTS=-Xms512m -Xmx512m

since this is suitable for all JDKs. We should also probably include
some commented out examples for other configs - such as the Sun JDK
garbage collector optimizations.

Version-Release number of selected component (if applicable):


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Comment 1 Richard Li 2004-02-04 13:42:37 UTC 
what happens with the above if the machine has, say, 384MB of RAM?
Comment 2 Daniel Berrangé 2004-02-04 13:51:36 UTC 
Experiance has shown us that production servers will very quickly fall
over with OutOfMemoryExceptions if you allocate < 512m, particulary,
if  they upload even moderately sized images / files. So running on a
machine with < 1 GB of RAM is not feasible.
Comment 3 Richard Li 2004-02-04 13:54:54 UTC 
Let me rephrase my question.

If I'm downloading this thing for evaluation, and I'm not running in
production, and my machine has 384MB of RAM, and I just want to click
around, will using these defaults preclude me from running at all?
Comment 4 Dennis Gregorovic 2004-02-04 17:32:14 UTC 
/etc/ccm/conf/envvars is part of the ccm-tools package as of 40056.

The contents are:

  ## Environment variables to be set at ccm invocation

  ## Jave Runtime Environment parameters
  # JAVA_OPTS=-Xms512m -Xmx512m

I prefer to leave the JAVA_OPTS settings commented out for the reason
that Richard Li mentioned.  Plus, production installs should refer to
the deployment guide and use JVM settings corresponding to the
individual situation.