Support Article
DSS accumulation on restarts
SA-36896
Summary
An enhancement (HFix-33036) that reduces pulse traffic across the PRPC Cluster has the side effect of leaving a dynamic system setting when a node is restarted.
These dynamic system settings accumulate over time and are not needed.
Error Messages
Not applicable
Steps to Reproduce
Each restart of a node running Pega 7.2/HFix-33036 creates a dynamic system setting using PRPC cluster node UUID.
Root Cause
A defect in Pegasystems’ code or rules.
The dynamic system setting created to help reduce pulse traffic across the PRPC cluster, needs to be cleaned up when a PRPC node is restarted.
Resolution
Apply HFix-33735.
Changes:
In the hot fix implementation, dynamic system settings of format "vbd/cluster/{clusterid}/serverMode" will be deleted when the Visual Business Director (VBD) service starts and no longer used.
New format vbd/pulse/{clusterid} = lastPulseTime will be used instead, and automatically cleaned if pulse time is older than 1 hour.
Published May 10, 2017 - Updated October 8, 2020
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