How long will scaling event history kept by App Autoscaler

Products

• VMware Tanzu Application Service

Issue/Introduction

This article describes the App Autoscaler - scaling event history retention period. 

Environment

TPCF App Autoscaler

Resolution

Starting in TPCF version 10.3.0, the scaling event history retention period is now a user-configurable setting with a default and minimum of value of 1 day, and maximum value of 120 days.

See the TPCF v10.3.0 release notes for the said feature.

See the App Autoscaler configuration document on how to configure the Autoscale event retention period setting.

Prior to TPCF v10.3.0, the retention period was 24 hours, and there was no option/way to change the retention period because the garbagecollector code had a static value of 24 hours, which meant that any event history record that was older than that was automatically deleted from the database table.  Besides scaling event history, non-recurring scheduled limit change is managed as the same way as scaling event history.