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2.5. JVM Configuration Options.

Abstract

Various settings for the JVM can be configured prior to startup. To do this, edit the bin/setenv file. The setenv file is used as part of the start-up routine, so for any changes to be picked up they have to be made before JBoss A-MQ is started.

Setting Java Options
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Java Options can be set using the /bin/setenv file. Use this file to set a number of Java Options, such as JAVA_MIN_MEM, JAVA_MAX_MEM, JAVA_PERM_MEM, JAVA_MAX_PERM_MEM. These are the default options. Other Java Options can be set using the EXTRA_JAVA_OPTS variable.
For example, to allocate minimum memory for the JVM use 
JAVA_MIN_MEM=512M # Minimum memory for the JVM
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. To set a Java option other than the defaults, use 
EXTRA_JAVA_OPTS="Java option"
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. For example, 
EXTRA_JAVA_OPTS="-XX:+UseG1GC"
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.
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