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Tutorial: Basic Monitoring for Oracle SOA Suite 11g

MattBrasierandNickWright
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Matt Brasier and Nick Wright, authors of Oracle SOA Suite 11g Performance Tuning Cookbook, show us how to get the key aspect of monitoring right.

Matt Brasier and Nick Wright, authors of
Oracle SOA Suite 11g Performance Tuning Cookbook
, show us how
to get the key aspect of monitoring right.

Having recently written the Oracle SOA Suite 11g Performance
Tuning Cookbook, we felt it would be interesting to discuss one of
the key topics covered. The purpose of the book is to provide a
one-stop shop for information on tuning Oracle SOA Suite 11g, from
optimizing the operating system to tuning composites. One of the
key aspects of any performance strategy is monitoring, which not
only allows you to observe and identify the cause of any
performance problems that you may have, but to observe the impact
that any changes you make have on performance.

A coherent monitoring strategy encompasses all aspects of the
application lifecycle, with monitoring in development used to
ensure that applications meet their non-functional requirements and
to determine alerting levels that should be set in reference and
production environments. Reference and operational systems need to
be monitored to ensure they are behaving as expected, and to
provide a baseline for what “known good” performance looks
like. This tutorial looks at how you can monitor various aspects of
your SOA Suite application.

Basic Monitoring

Probably the most basic monitoring you can perform is to use the
operating system level tools to view the CPU and memory usage of
your application server process. Use the command: jps –v to obtain a list
of all the java processes on your box, and note the process ID of
the one running your application server. You can then use operating
system tools such as top or the windows task
manager
to view the CPU and memory usage of the process with
the matching ID.

Monitoring with the Administration Consolelog into the WebLogic
Administration Console

Log into the WebLogic
Administration Console
http://admin-server-host:<admin-port>/console
and under Environment -> Servers -> <SOA Server name> -> Monitoring -> JDBC we’ll
see a breakdown view of the JDBC connections. Click

Customize this table and ensure that Prep Stmt Cache Current Size
and Active Connections Current Count
are added to the chosen
list.

Monitoring with Oracle Fusion Middleware
Enterprise Manager

If you have installed the enterprise manager components in your
domain, you can use the enterprise manager to obtain some basic
monitoring information. Connect to:

http://<servername>:<port>/em

And log in with your domain admin credentials. Then navigate to
WebLogic Domain -> <SOA domain name> -> <SOA
server name>
, right click and select
Performance Summary.

Click the button Show Metric Palette and select
metrics to monitor. Good starting candidates are JVM
Heap
and Memory Usage, SOA
Composite Errors
and Incoming Message
Throughput
, finally in the Server
Overview
folder there is a summation of the JDBC
connections Open JDBC Connections.

Advanced
Monitoring

All of the methods here are
very basic, and donít really provide the necessary level of detail
or control that we would recommend for a production domain. We
would strongly urge anyone with an Oracle SOA Suite installation to
configure this or a similar monitoring tool, and establish good
performance baselines so that “normal” performance is well
understood. This would include monitoring aspects such as JTA
transaction volumes, datasource pool sizes, JVM memory usage, open
sockets, etc. Configuring such tools is beyond the scope of this
simple tutorial, but could be covered in a follow-up
article.

Coming soon – an introductory
tutorial to Oracle SOA Suite 11g

Author Bios: Matt Brasier and
Nick Wright are the authors of

Oracle SOA Suite 11g Performance Tuning Cookbook
, which
contains interesting, hands-on recipes, giving detailed
descriptions and lots of practical walkthroughs for boosting the
performance of your Oracle SOA Suite. 
Matt is Head of
Consulting at C2B2 while Nick is Senior Middleware Consultant at
C2B2 and
 JSR 343 (JMS 2.0) Expert Group
member.

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