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Support Article

Forced purging of cache alert occurs in production environment



Alerts display in the production environment, which are marked as high priority in Pega Predictive Diagonistic Cloud (PDC).

Error Messages

Forced purging of cache collections/mru/PropertyReference: Successfully reduced Concurrent MRU Map by 20001 down to: 100000.

Steps to Reproduce


Root Cause

Cache setting is low.


Perform the below local-change:

Increase the cache size setting through the associated Dynamic System Setting (DSS):


Published July 24, 2018 - Updated October 8, 2020

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