Configure Data Aggregator (DA) to make use of added memory

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Article ID: 46810

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Updated On:

Products

CA Infrastructure Management CA Infrastructure Management CA Performance Management - Usage and Administration DX NetOps

Issue/Introduction

When installing DX Netops Performance Management  (CA Performance Management/CAPM) components, memory usage is set by a combination of questions and automatic evaluation of the system resources.

If you increase memory on the host, you need to manually edit some files for DX Netops Performance Management to make use of these new resources.

This article addresses how to accomplish this for the Data Aggregator (DA) server.

Cause

Increased memory resources on Data Aggregator (DA). Need to configure it to use the increased resources available.

Environment

All supported Performance Management releases

Resolution

Formula for memory allocation:

  • Ensure 2 GB is reserved for the OS, by subtracting 2GB off the top, first. and then dividing the remainder as follows
  • 80% for the DA (Data Aggregator)
  • 20% for AMQ (Active MQ (data broker))

There will be 2 files to edit for the Data Aggregator (DA) to make uses of the added Memory Resources. They are as follows using default paths:

  1. Run time values are set in:
    • /opt/IMDataAggregator/apache-karaf-2.4.3/bin/setenv
  2. Set values here for re-installs and/or upgrades to inherit current values configured:
    • /etc/DA.cfg

There will be 2 files to edit for the AMQ:

  1. Run time values.
    • /etc/init.d/activemq    (Red Hat 6.x)
    • Or   /opt/IMDataAggregator/scripts/activemq   (Red Hat 7.x)
  2. Set values here for re-installs and/or upgrades to inherit current values configured:
    • /etc/DA.cfg

To implement changes follow the documentation below in the Additional Information section to calculate and set the new memory usage limits.

Additional Information

Documentation for this change for the Data Aggregator karaf service.

Documentation for the same change for the Data Aggregator ActiveMQ service:


Performance Management Sizing Tool