[opennms-devel] FYI: increasing reserved code cache size breaks build on machines with 2GB of RAM

[DJ G. <dj...@op...>]

FYI, change 1268bd7c9cec25008b3f8604bbe3566e6e941dbf keeps me from
building OpenNMS on my (now ancient) MacBook Pro with only 2GB of RAM. 
The JVM for Maven won't even start:

-----------------------------------------------------------------------
$ ./compile.pl
[WARN] $JAVA_HOME is not set, things might go wonky.  Or not.
[INFO] MAVEN_OPTS = -XX:PermSize=512m -XX:MaxPermSize=1g -Xmx1g
-XX:ReservedCodeCacheSize=512m
[INFO] running:
/Users/dgregor-unencrypted/opennms/master/opennms/maven/bin/mvn
-Droot.dir=/Users/dgregor-unencrypted/opennms/master/opennms
-Djava.awt.headless=true -Dmaven.test.skip.exec=true install
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
[ERROR] child exited with value 1
-----------------------------------------------------------------------

If I remove "-XX:ReservedCodeCacheSize=512m" from $MAVEN_OPTS in
functions.pl (which reverts the change below), it works fine.

I can work around this easily, but I wanted to make sure others aware,
and validate that we want to keep this as the default.  If so, I'll
document it on the building OpenNMS page.

Below is the original commit.


----- Original message -----
From: "Benjamin Reed" <ran...@us...>
To: ope...@li...
Date: Fri, 11 Mar 2011 00:31:28 +0000
Subject: [opennms-cvs] [SCM] OpenNMS branch, master,    updated.
opennms-1.9.6-1-155-g1268bd7

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The branch, master has been updated
       via  1268bd7c9cec25008b3f8604bbe3566e6e941dbf (commit)
      from  1c348604706538816830a7fb7863addcab9db446 (commit)

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- Log -----------------------------------------------------------------
commit 1268bd7c9cec25008b3f8604bbe3566e6e941dbf
Author: Benjamin Reed <ra...@op...>
Date:   Thu Mar 10 19:31:01 2011 -0500

    increase the reserved code cache size

-----------------------------------------------------------------------

Summary of changes:
 functions.pl |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


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