You can control the memory consumption of Java™ processes
that the Rational® ClearQuest® Web client uses
by adjusting the parameters in property files of the various components.
Some practical limitations to setting the values of the
–Xms and
–Xmx options
apply to all memory configuration settings for
Rational ClearQuest server
and
Rational ClearQuest Web
application components running on Windows
®, the UNIX
® system, or Linux
®.
- Do not changing the default VM size option on Windows unless a representative from IBM Software Support for Rational software products instructs you to
do so.
- You can set the option –Xms up to 512m.
- If the value of the –Xms option is greater than that
of the –Xmx option, unpredictable behavior can occur.
- Verify that you have enough physical memory on the machine before you
modify this parameter. Increasing this setting to a value that is more than
60% of your physical memory or greater than 1 GB can cause memory page swapping,
which can degrade performance.
Controlling Java VM
memory consumption on Windows
To
control memory consumption for the Rational ClearQuest Request
Manager:
- Open the configuration file C:\Program Files\Rational\ClearQuest\cqweb\csm.properties .
- Modify the -Xms16m and -Xmx256m specifications:
CMD_LINE_WIN="_RATL_INSTALL_ROOT_common/Java/JRE/bin/java.exe" -Xrs -Xms16m -Xmx256m -cp config;requestmgr.jar;../;../../cqjni.jar;../lib/logging.jar;../lib/log4j.jar com.rational.clearquest.cqweb.requestmgr.RmInitialization
To control memory consumption for the Rational ClearQuest Registry
Server:
- Open the configuration file C:\Program Files\Rational\ClearQuest\cqweb\cqregsvr\cqregsvr_service.properties.
- Modify the -Xms16m and -Xmx256m specifications:
#
# JVM Options
#
# Useful Options:
# -Xms2m = Initial heap size, change to desired size
# -Xmx256m = Maximum heap size, change to desired size
# -Xrs = Available in Jdk1.3.1 to avoid JVM termination during logoff
#
wrapper.jvm.options=-Xrs -Xms16m -Xmx256m
Controlling Java VM
memory consumption on Linux and the UNIX system
To control memory consumption for the Rational ClearQuest Request
Manager:
- Open the /opt/rational/clearquest/cqweb/csm.properties configuration
file.
- Modify the -Xms16m and -Xmx256m specifications
in the section shown below:
CMD_LINE_UNIX="_RATL_INSTALL_ROOT_common/Java/JRE/bin/java.exe" -Xrs -Xms16m -Xmx256m -cp config;requestmgr.jar;../;../../cqjni.jar;../lib/logging.jar;../lib/log4j.jar com.rational.clearquest.cqweb.requestmgr.RmInitialization
On HP-UX, modify the -Xms64m and -Xmx256m specifications
in the CMD_LINE_HPUX property instead.
To control memory consumption for the Rational ClearQuest Registry
Server:
- Open the configuration file/opt/rational/clearquest/cqweb/cqregsvr/start_cqreg.sh.
- Modify the –Xms and –Xmx specifications
in this line:
java –Xms256m –Xmx256m com.rational.clearquest.cqweb.jtl.JTLRegistryServer &