Group Aggregation

Document created by RSA Information Design and Development on May 2, 2016Last modified by RSA Information Design and Development on Oct 13, 2016
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You use Group Aggregation to configure multiple Archiver or Concentrator services as a group and share the aggregation tasks between them. You can configure multiple Archiver services or Concentrator services to efficiently aggregate from multiple Log Decoder services to improve query performance on the data:

  • Stored in the Archiver.
  • Processed through the Concentrator.

RSA Group Aggregation Deployment Recommendations

RSA recommends the following deployment for Group Aggregation.

  • 1 - 2 Log Decoders
  • 3 - 5 Archivers or Concentrators

Advantages of Using Group Aggregation

Group Aggregation:

  • Increases the speed of Security Analytics queries.
  • Improves the performance of aggregate queries (Count and Sum) on the environment.
  • Enhances investigation service performance.
  • Gives you the option of storing data for a longer duration for investigation purposes.

Note: To achieve the best performance, the total amount of data stored on the group of nodes should not increase compared to the amount of data stored on the original nodes. For example, if you had one node at 90% capacity then created a three-node group, and all three nodes were at 90% capacity,  you would increase the storage, but the performance gain would be minimal.

The following diagram illustrates Group Aggregation.

You can have any number of Archivers or Concentrators grouped together and form an aggregation group. The Archiver or  Concentrator services in the group divide all the aggregated session between them based on the number of sessions defined in the Aggregate Max Sessions parameter.

For example, in an aggregation group containing two Archiver services or two Concentrator services with the Aggregate Max Sessions parameter set to 10000 the services would divide the session between themselves as illustrated in the following table.

                     
Archiver 0 or Concentrator 0 Archiver 1 or Concentrator 1
1 - 9,99910,000 - 19,999
20,000 - 29,99930,000 - 39,999
40,000 - 49,99950,000 - 59,999
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