Cache Differences Between Primary and Secondary Site (Doc ID 3060100.1)

Last updated on NOVEMBER 29, 2024

Applies to:

Goal

In a cloud native deployment of Elastic Charging Engine, with a Disaster Recovery (DR) setup as active - warm standby, there were differences in cache count observed in below scenario:

Scenario:

• Stopped traffic to production (active site)
• Stopped federation from production to DR site (warm standby site)
• Stopped production by shutting down ECE and Billing and Revenue Management. (The reason for this procedure was a hardware upgrade on the production database servers)
• DR Diameter Gateways were down with DR Elastic Charging Server (ECS) nodes running but not receiving any requests
• Restarted production from persistence
• Performed replicate_all from production to DR
• Performed rolling restart of DR ECS nodes
• Performed replicate_all from production to DR
• Cache counts were compared between the two sites and below differences were observed (first line is from production, second is from DR site):
  
  < AggregateObjectUsage : 16
  ---
  > AggregateObjectUsage : 10

  < ServiceContext : 99
  ---
  > ServiceContext : 38

  < ActiveSession : 2788
  ---
  > ActiveSession : 102956

  < BillingTriggerCycleInfo : 0
  ---
  > BillingTriggerCycleInfo : 114035

What could be the reason behind the differences?

Solution

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.