Thursday Jun 18, 2015

Creating graphs from DMS Metrics Peter van Nes

clip_image002When analyzing a (performance) issue in Fusion Middleware components, Dynamic Monitoring Service (DMS) Metrics can support you with the necessary information to support resolving the issue. DMS Metrics can be accessed using a variety of tools like JConsole, Oracle EM, WLDF, WLST and the DMS Spy servlet. The DMS Spy servlet is a perfect tool to get insight in the actual metrics but does not provide a way to store or graph these metrics over time. In Oracle EM Fusion Middleware Control you can view graphs of some metrics over time, but it is not possible to store these for review. To quickly get the needed graphs i wrote a WLST script that recorded the selected metrics to a csv which i could upload to plot.ly to generate graphs in minutes.

To record the DMS metrics to a csv file execute the script with the required arguments as shown in the example below. For more information on the argument metrictables follow this link; metrictables. Make sure to enclose the metrictables argument in single quotes, even if you only need one metric table. e.g. ‘”OIM_*”‘. Read the complete article here.

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Thursday Mar 21, 2013

Fusion Middleware Performance Problems? Take Advantage of DMS by Daniel Mortimer

  • Why is my application running slowly?
  • How can I access configuration data and related metrics?
  • I need to a tool to help me tune my Fusion Middleware solution?

If you are asking these types of questions then take some time out to find out more about DMS.

What is DMS? Yes, another acronym .. sorry ... translation : "Dynamic Monitoring Service." It is a service which enables Oracle Fusion Middleware components to provide data regarding the component's performance, state and ongoing behavior. DMS measures and reports metrics, trace events and system performance and provides a context correlation service for these components.
Benefits include

  • Comprehensive set of performance metrics
  • Multiple tools for easier viewing and analysis of the metrics - including:
    • Fusion Middleware (EM) Control
    • DMS Spy Servlet
    • WLST
    • Remote Diagnostic Agent
    • Diagnostic Framework
  • Event Tracing
    • configure live tracing with no restarts
    • trace issues within a given time period or collect specific data at a specific time for a specific set of criteria

Oracle Fusion Middleware Performance and Tuning Guide 11g Chapter 6 Oracle Dynamic Monitoring Service Performance Tuning is the place to find out more. Read the full article here.

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For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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