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

Products

• 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 what files need to be updated for the Data Aggregator (DA) server to take advantage of extra memory.

 

 

Data Aggregator, Repository performance issues

Environment

Release : 20.2.*

Release : 21.2.*

Release 22.2.*

Dx NetOps Performance Management

Cause

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

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 (dadaemon) 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-4.2.6/bin/setenv
   •  if [ "$IM_MAX_MEM" == "" ]; then
             # Set by the installer
             export IM_MAX_MEM=20000M
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)
   • ACTIVEMQ_OPTS_MEMORY=" -Xms2500M -Xmx5000M -Xmn793M   (Set Xmx value to how much memory is allocated to activemq, and set Xms to half of that)
2. Set values here for re-installs and/or upgrades to inherit current values configured:
   • /etc/DA.cfg

 

Then restart Data Aggregator processes, activemq and dadaemon

Additional Information

How to add more memory and/or CPU to vertica hosts:

https://knowledge.broadcom.com/external/article/213360/

 

How to configure my Data Collector (DC) to make use of new resources.

https://knowledge.broadcom.com/external/article/46765/

 

How to configure my Console (CAPC) to make use of new resources.

https://knowledge.broadcom.com/external/article/46563/