In below details you will be able to configure the Jprofiler in Weblogic server environment. Profiling the Weblogic application server is tricky. By following the below steps you can easily set up the environment.
1. Introduction
JProfiler eases developers
in creating more efficient applications by improving their performance. It is
oriented towards testing and exploring different aspects of the performance of
a Java program, concerning the operation of the JVM making use of available
platform resources.
JProfiler
provides the following functionality:
·
Memory
consumption measurement
·
Memory stack
frames tracing
·
CPU loads
profiling
·
Momentary heap
allocation information
·
Thread state
progress statistics
·
Visual
representation of VM work loads by different parameters
·
Source code
reference
·
Garbage
collection during profiling
·
Remote
profiling
·
Profiling only
of a particular stage or a combination of several stages of the program life
cycle
·
Using
different target environments
·
Saving
profiler information for further examination
·
Exporting
profiler information in text format
On the all the servers that has JProfiler component
listed, following steps have to be carried out:-
1)Login to the linux box as a non-root user
2)Download the TAR.GZ Archive (
jprofiler_linux_7_1_2.tar.gz) for JProfiler
and keep the license key with you.
3)Upload jprofiler_linux_7_1_2.tar.gz to the box
(for eg in /home/oracle directory)
4) Execute the below commands:
gunzip jprofiler_linux_7_1_2.tar.gz
tar xf jprofiler_linux_7_1_2.tar
5) Ensure the software to export display is
available in the local box (E.g Xserver) and it is running
6) Ensure JRE is set with version >1.5
After completing the Steps listed above in Section 2.1,
1) Navigate to the JProfiler Install Directory
Ensure that
JAVA_HOME & DISPLAY variables are set.
2) Execute the shell script under extracted
JProfiler folder
<JProfiler
Directory>/bin/jprofiler
3) Enter the license key and click on evaluate
(this is for trial version), below screen will be shown. Note: License key is
only required where JProfiler GUI will be running.
4) To update the license information click on
‘Help’ and then ‘Enter License Key’
Update the information as required ,Click OK to complete License Update.
Modify the server startup script you want to profile as
below. For example if you want to
profile the admin server modify the startWebLogic.sh to append the JProfiler argument
JAVA_VM=
export JAVA_VM
JPROFILER_OPTIONS="-agentpath:<JProfiler Directory>/jprofiler7/bin/linux-x86/libjprofilerti.so=port=<xxxx>,nowait
$JPROFILER_OPTIONS"
export JPROFILER_OPTIONS
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Note:- If the java
version used by Weblogic/jrockit is 64 bit, change the jprofiler lib path in
the above section to <JProfiler Directory>/jprofiler7/bin/linux-x64
Add ${JPROFILER_OPTIONS} to the below portion of the
startWeblogic script.
if [ "${WLS_REDIRECT_LOG}" =
"" ] ; then
echo "Starting WLS with line:"
echo "${JAVA_HOME}/bin/java ${JPROFILER_OPTIONS} ${JAVA_VM} ${MEM_ARGS}
-Dweblogic.Name=${SERVER_NAME}
-Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy ${JAVA_OPTIONS}
${PROXY_SETTINGS} ${SERVER_CLASS}"
${JAVA_HOME}/bin/java ${JPROFILER_OPTIONS} ${JAVA_VM} ${MEM_ARGS}
-Dweblogic.Name=${SERVER_NAME}
-Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy ${JAVA_OPTIONS}
${PROXY_SETTINGS} ${SERVER_CLASS}
else
echo "Redirecting output from WLS window to
${WLS_REDIRECT_LOG}"
${JAVA_HOME}/bin/java ${JPROFILER_OPTIONS} ${JAVA_VM} ${MEM_ARGS}
-Dweblogic.Name=${SERVER_NAME}
-Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy ${JAVA_OPTIONS}
${PROXY_SETTINGS} ${SERVER_CLASS}
>"${WLS_REDIRECT_LOG}" 2>&1
fi
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Make changes in above script:
- Give
the JProfiler installation directory
- Give
the port number to open the connection for JProfiler Agent.
- Restart
the server.
- Step 1: Navigate to the JProfiler Install Directory, Ensure that
JAVA_HOME & DISPLAY variables are set.
- Step 2: Execute the shell script under extracted JProfiler folder , <JProfiler
Directory>/bin/jprofiler
- Step 3: JProfiler window will open , click on ‘Session’ and select ‘New
Session’. In case you have saved the session earlier please skip to Step 9.
- Step
4: Select ‘Attach to
profiled JVM (local or remote)’
- Step
5: Enter the Host name
for the application server need to profiled and the port number
(configured in step 2.2)
- Step
6: Enter the session
name as required and click ‘OK’. This session will be saved and next time
you can directly open the session.
- Step
7: JProfiler will try to
connect to profiled application server , once connected below screen
appears.
- Step
8: JProfiler will start collecting data & below screen will
be displayed. Start / Stop the several Jprofiler recording as per
requirement.
- Step
9: In case if you have already saved the session earlier. Open
the JProfiler window , Click ‘Session’ and select ‘Open Session’
- Step
10: Select the previous saved session and Click ‘Open’.
- Step
11: Click ‘OK’ , Reports will be generated like screenshot
attached in Step 8.
