HP XP7 Performance Advisor v6.1 Software Troubleshooting and FAQs Guide

%javacmd% -Djava.cmd=%javacmd% -Dinstall.dir="%installdir%" -Xms256m
-Xmx1024m -cp %classpath% com.hp.xpsl.clui.XpPaCli %COMMAND% %*
Classpath error
Cause
Unable to initialize threads: cannot find class java/lang/Thread Could not create Java VM.
Resolution
Problem:
Earlier versions of the XP7 Performance Advisor LUI required the user to set some environment
variables. This error message indicates that the classpath environment variable was not set correctly.
(This error must not occur with new install scripts.) Report this error directly to your HP contact.
Install script exits with an error
Cause
Install script exits with the message: 'JRE was not found in path <jre_location>. This is because,
the location entered for the java environment is not valid.
Resolution
In UNIX variants, execute install.sh and enter the correct path to the java environment. In
Windows, edit the JAVA_HOME environment variable, and run the install.bat script again.
Cause
Install script exits with the message: 'install.sh: this script must be run as root....exiting'. This is
because, you are not logged in as the root user.
Resolution
Log in as root, and run install.sh again.
Multiprocessor optimization
For efficient and optimized use of the management station hardware on a multi-processor or a
multi-core system, bind the HP XP7 Performance Advisor Tomcat and HP XP7 Performance Advisor
Database services to individual processors. Therefore, leading to better response load balancing
and avoiding any overheads of switching, or scheduling on multiple processors.
To enable multiprocessor optimization, you must modify the property for multiprocessor optimization
in the serverparameters.properties file. By default, multiprocessor optimization is not
enabled or switched off for HP XP7 Performance Advisor.
Multiprocessor optimizations #
# The following entry enables / disables the Multiprocessor Optimizations.
# Note: Valid Input = ON|OFF
Enable_MP_Optimizations=ON
You can enable this option if you find that the HP XP7 Performance Advisor performance is slow
on the management station. Dedicate a processor each for the HP XP7 Performance Advisor Tomcat
and HP XP7 Performance Advisor Database services. Upon restarting the management station, the
HP XP7 Performance Advisor Tomcat service is considered on priority and bound to a processor
followed by the Oracle process.
To improve HP XP7 Performance Advisor performance on a multi-processor or a multi-core system,
HP recommends enabling multiprocessor optimization as the first step. However, if you do not see
any significant performance improvement even after enabling multiprocessor optimization, HP
suggests you restore the default settings in the serverparameters.properties file and contact
HP support.
Multiprocessor optimization 39