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https://issues.apache.org/jira/browse/KARAF-1019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13152705#comment-13152705
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Andreas Pieber commented on KARAF-1019:
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I'm against removing those options. Tbh Karaf is different from Tomcat. The
possibility to create custom distributions add complete different requirements
to Karaf than Tomcat; and those vars, in combination with the setevn files
allow a very neat option to configure your app as you like. IF we only remove
the default option but still allow the easy configuration via the setenv I'm
+/-0; otherwise -1
> Set java memory options only when required
> ------------------------------------------
>
> Key: KARAF-1019
> URL: https://issues.apache.org/jira/browse/KARAF-1019
> Project: Karaf
> Issue Type: Improvement
> Components: karaf-core
> Affects Versions: 2.2.4
> Environment: Windows 2003 @ amd64
> jdk1.6.0_29 x64
> Reporter: Alexey Markevich
> Assignee: Jean-Baptiste Onofré
> Fix For: 2.2.5, 3.0.0
>
> Attachments: karaf, karaf.bat, karaf.bat, set_java
> memory_options_only_when_required.patch, set_java
> memory_options_only_when_required_unix.patch
>
>
> Related to https://issues.apache.org/jira/browse/KARAF-818
> Using my x64 environment I got PermGen space error.
> Sure - I can change JAVA_MAX_MEM, JAVA_PERM_MEM, JAVA_MIN_MEM,
> JAVA_MAX_PERM_MEM variables.
> But I found that without memory settings [1] my scenario works fine.
> Is it possible to set java memory options only if variables are present?
> 1. set DEFAULT_JAVA_OPTS=-server -Dderby.system.home="%KARAF_DATA%\derby"
> -Dderby.storage.fileSyncTransactionLog=true -Dcom.sun.management.jmxremote
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