Aria Operations trend/forecast views are not showing data older than 3 months

Products

• VMware Aria Suite

Issue/Introduction

Unable to see the trend view older than 3 months.

Environment

Aria Operations: 8.18.3

Cause

The trend/forecast in the views is calculated based on the last 90 days of historical data of the specified time range by default. It does not matter what is the start time in the view configuration, and this is done for performance improvement purposes

Even if the View's time range is specified less than 90 days the trend/forecast calculation takes 90 days of historical data for accurate calculation (when available).

Resolution

1. Take a snapshot of the Aria Operations cluster without a memory as per How to take a Snapshot
2. SSH to all analytics nodes (Primary, Replica, Data)
3. Stop the analytics process on all the nodes, beginning with Data nodes, then Replica (if present), ending with the Primary node.
   
   service analytics stop
   
   
4. Edit the property file /usr/lib/vmware-vcops/user/conf/analytics/capacity.properties and change the value of property name historicDataRangeForTrend (Note: This value is in days)
5. Repeat step 4 on all analytics nodes (Primary, Replica, Data)
6. Start the analytics process so changes take effect, beginning with the Primary node, then Replica (if present), ending with Data nodes.
   
   service analytics start