jboss服务器中jvm参数的设置：

在$JBOSS_HOME/bin下的run.sh里面存在这么一个设置：

# Force IPv4 on Linux systems since IPv6 doesn't work correctly with jdk5 and lower

if [ "$linux" = "true" ]; then

JAVA_OPTS="-Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000"

fi

该参数就是设置java VM的参数。我们可以在这里修改这个参数；但更一般的我们会在run.conf里面单独设置java VM的参数，而在这边进行引用。

上面的可以做如下修改

# Force IPv4 on Linux systems since IPv6 doesn't work correctly with jdk5 and lower

# if JAVA_OPTS is not setted in run.conf, setting here; by djq

if [ "x$JAVA_OPTS" = "x" ]; then

JAVA_OPTS="-Xms128m -Xmx512m -XX:PermSize=64m -XX:MaxPermSize=256m -XX:+HeapDumpOnOutOfMemoryError -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=36000"

fi

if [ "$linux" = "true" ]; then

JAVA_OPTS="$JAVA_OPTS -Djava.net.preferIPv4Stack=true"

fi

而我们需要可以在run.conf里面单独设置java VM的参数了。(一般情况下我们也不需要在run.sh里面做任何修改，只要在run.conf里面确保该有的参数都有了就ok了)。

附：

run.conf的一个设置：

## -*- shell-script -*- ######################################################

## ##

## JBoss Bootstrap Script Configuration ##

## ##

##############################################################################

### $Id: run.conf 62747 2007-05-02 17:43:36Z [email protected] $

#

# This file is optional; it may be removed if not needed.

#

#

# Specify the maximum file descriptor limit, use "max" or "maximum" to use

# the default, as queried by the system.

#

# Defaults to "maximum"

#

#MAX_FD="maximum"

#

# Specify the profiler configuration file to load.

#

# Default is to not load profiler configuration file.

#

#PROFILER=""

#

# Specify the location of the Java home directory. If set then $JAVA will

# be defined to $JAVA_HOME/bin/java, else $JAVA will be "java".

#

#JAVA_HOME="/opt/java/jdk"

#set JAVA_HOME here; by djq

JAVA_HOME="/jboss/jdk1.5.0_22"

#

# Specify the exact Java VM executable to use.

#

#JAVA=""

#

# Specify options to pass to the Java VM.

#

#if [ "x$JAVA_OPTS" = "x" ]; then

# JAVA_OPTS="-Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000"

#fi

# set options for the JVM; by djq

if [ "x$JAVA_OPTS" = "x" ]; then

JAVA_OPTS="-Xms1024m -Xmx6120m -XX:PermSize=128m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=36000"

fi

# Sample JPDA settings for remote socket debuging

#JAVA_OPTS="$JAVA_OPTS -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n"

# Sample JPDA settings for shared memory debugging

#JAVA_OPTS="$JAVA_OPTS -Xrunjdwp:transport=dt_shmem,server=y,suspend=n,address=jboss"

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2012-04-09 11:11

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